2k15_buick_lacrosse_22941405B.ai (Modern Bridge - Level 2 / #23321109) Spine = Printer Adjust Color = Black Date = 09/03/14 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
2015 Buick LaCrosse Owner Manual M
In Brief ...... 1-1 Storage ...... 4-1 Climate Controls ...... 8-1 Instrument Panel ...... 1-2 Storage Compartments ...... 4-1 Climate Control Systems ...... 8-1 Initial Drive Information ...... 1-4 Additional Storage Features . . . 4-3 Air Vents ...... 8-6 Vehicle Features ...... 1-15 Maintenance ...... 8-6 eAssist Features ...... 1-19 Instruments and Controls . . . . 5-1 Performance and Controls ...... 5-2 Driving and Operating ...... 9-1 Maintenance ...... 1-21 Warning Lights, Gauges, and Driving Information ...... 9-2 Indicators ...... 5-7 Starting and Operating ...... 9-14 Keys, Doors, and Information Displays ...... 5-26 Engine Exhaust ...... 9-26 Windows ...... 2-1 Vehicle Messages ...... 5-35 Automatic Transmission ...... 9-27 Keys and Locks ...... 2-1 Vehicle Personalization ...... 5-45 Drive Systems ...... 9-30 Doors ...... 2-13 Universal Remote System . . . . 5-51 Brakes ...... 9-30 Vehicle Security...... 2-15 Ride Control Systems ...... 9-34 Exterior Mirrors ...... 2-18 Lighting ...... 6-1 Cruise Control ...... 9-37 Interior Mirrors ...... 2-19 Exterior Lighting ...... 6-1 Driver Assistance Systems . . . 9-47 Windows ...... 2-20 Interior Lighting ...... 6-5 Fuel ...... 9-58 Roof ...... 2-23 Lighting Features ...... 6-6 Trailer Towing...... 9-63 Conversions and Add-Ons . . . 9-68 Seats and Restraints ...... 3-1 Infotainment System ...... 7-1 Head Restraints ...... 3-2 Introduction ...... 7-1 Front Seats ...... 3-4 Rear Seats ...... 3-11 Safety Belts ...... 3-12 Airbag System ...... 3-20 Child Restraints ...... 3-33 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
2015 Buick LaCrosse Owner Manual M
Vehicle Care ...... 10-1 Technical Data ...... 12-1 General Information ...... 10-2 Vehicle Identification ...... 12-1 Vehicle Checks ...... 10-4 Vehicle Data ...... 12-2 Headlamp Aiming ...... 10-31 Bulb Replacement ...... 10-31 Customer Information ...... 13-1 Electrical System ...... 10-34 Customer Information ...... 13-1 Wheels and Tires ...... 10-42 Reporting Safety Defects . . . . 13-12 Jump Starting ...... 10-78 Vehicle Data Recording and Towing the Vehicle ...... 10-82 Privacy...... 13-14 Appearance Care ...... 10-85 OnStar ...... 14-1 Service and Maintenance . . . 11-1 OnStar Overview...... 14-1 General Information ...... 11-1 OnStar Services ...... 14-2 Maintenance Schedule ...... 11-2 OnStar Additional Special Application Information ...... 14-6 Services ...... 11-8 Index ...... i-1 Additional Maintenance and Care ...... 11-8 Recommended Fluids, Lubricants, and Parts ...... 11-12 Maintenance Records ...... 11-14 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
Introduction iii
This manual describes features that Canadian Vehicle Owners may or may not be on the vehicle because of optional equipment that Propriétaires Canadiens was not purchased on the vehicle, A French language manual can be model variants, country obtained from your dealer, at specifications, features/applications www.helminc.com, or from: that may not be available in your The names, logos, emblems, region, or changes subsequent to On peut obtenir un exemplaire de slogans, vehicle model names, and the printing of this owner manual. ce guide en français auprès du vehicle body designs appearing in concessionnaire ou à l'adresse this manual including, but not limited Refer to the purchase savant: to, GM, the GM logo, BUICK, the documentation relating to your BUICK Emblem, and LACROSSE specific vehicle to confirm the Helm, Incorporated are trademarks and/or service features. Attention: Customer Service marks of General Motors LLC, its 47911 Halyard Drive Keep this manual in the vehicle for Plymouth, MI 48170 subsidiaries, affiliates, or licensors. quick reference. For vehicles first sold in Canada, Using this Manual substitute the name “General Motors of Canada Limited” for Buick To quickly locate information about Motor Division wherever it appears the vehicle, use the Index in the in this manual. back of the manual. It is an alphabetical list of what is in the manual and the page number where it can be found.
Litho in U.S.A. Part No. 22941405 B Second Printing © 2014 General Motors LLC. All Rights Reserved. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
iv Introduction
Danger, Warnings, and Symbols { Caution Cautions The vehicle has components and Warning messages found on vehicle Caution indicates a hazard that labels that use symbols instead of labels and in this manual describe could result in property or vehicle text. Symbols are shown along with hazards and what to do to avoid or damage. the text describing the operation or reduce them. information relating to a specific component, control, message, gauge, or indicator. { Danger M : This symbol is shown when Danger indicates a hazard with a you need to see your owner manual high level of risk which will result for additional instructions or in serious injury or death. information. * : This symbol is shown when A circle with a slash through it is a you need to see a service manual safety symbol which means “Do { Warning for additional instructions or Not,”“Do not do this,” or “Do not let information. this happen.” Warning indicates a hazard that could result in injury or death. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (5,1) 7707475) - 2015 - CRC - 10/9/14
Introduction v
Vehicle Symbol Chart # : Fog Lamps Here are some additional symbols . : Fuel Gauge that may be found on the vehicle and what they mean. For more + : Fuses information on the symbol, refer to 3 : Headlamp High/Low-Beam the Index. Changer 9 : Airbag Readiness Light ( : Heated Steering Wheel # : Air Conditioning j : LATCH System Child ! : Antilock Brake System (ABS) Restraints * g : Audio Steering Wheel Controls : Malfunction Indicator Lamp or OnStar® (if equipped) : : Oil Pressure $ : Brake System Warning Light O : Power " : Charging System / : Remote Vehicle Start I : Cruise Control > : Safety Belt Reminders B : Engine Coolant Temperature 7 : Tire Pressure Monitor O : Exterior Lamps d : Traction Control/StabiliTrak® g : First Responder M : Windshield Washer Fluid Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (6,1) 7707475) - 2015 - CRC - 10/9/14
vi Introduction
2 NOTES Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
In Brief 1-1
In Brief Interior Lighting ...... 1-11 Power Outlets ...... 1-17 Exterior Lighting ...... 1-12 Universal Remote System . . . 1-18 Windshield Wiper/Washer . . . . 1-13 Sunroof ...... 1-18 Instrument Panel Climate Controls ...... 1-14 Instrument Panel ...... 1-2 Transmission ...... 1-14 eAssist Features eAssist® Overview ...... 1-19 Initial Drive Information Vehicle Features High Voltage Safety Initial Drive Information ...... 1-4 Infotainment System ...... 1-15 Information ...... 1-20 Remote Keyless Entry (RKE) Steering Wheel Controls . . . . . 1-15 Automatic Engine Start/Stop System ...... 1-4 Cruise Control ...... 1-15 Feature ...... 1-20 Remote Vehicle Start ...... 1-4 Driver Information Regenerative Braking ...... 1-20 Door Locks ...... 1-5 Center (DIC) ...... 1-15 Battery ...... 1-21 Trunk Release ...... 1-5 Forward Collision Alert (FCA) Service ...... 1-21 Windows ...... 1-6 System ...... 1-16 Seat Adjustment ...... 1-6 Lane Departure Performance and Maintenance Memory Features ...... 1-8 Warning (LDW) ...... 1-16 Traction Control/Electronic Heated and Ventilated Lane Change Alert (LCA) . . . . 1-16 Stability Control ...... 1-21 Seats ...... 1-8 Rear Vision Tire Pressure Monitor ...... 1-22 Head Restraint Adjustment . . . . 1-9 Camera (RVC) ...... 1-17 Engine Oil Life System ...... 1-22 Safety Belts ...... 1-9 Rear Cross Traffic Alert E85 or FlexFuel ...... 1-23 Passenger Sensing (RCTA) System ...... 1-17 Driving for Better Fuel System ...... 1-10 Parking Assist ...... 1-17 Economy ...... 1-23 Mirror Adjustment ...... 1-10 Active Emergency Braking Roadside Assistance Program ...... 1-23 Steering Wheel System ...... 1-17 ® Adjustment ...... 1-11 OnStar ...... 1-23 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
1-2 In Brief
Instrument Panel Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
In Brief 1-3
1. Exterior Lamp Controls on 6. Hazard Warning Flashers on 15. Steering Wheel Controls on page 6-1. page 6-4. page 5-2 (If Equipped). Fog Lamps on page 6-4 (If Lane Departure Warning (LDW) Driver Information Center (DIC) Equipped). on page 9-57 (If Equipped). Buttons. See Driver Information Instrument Panel Illumination Rear Parking Assist Button (If Center (DIC) on page 5-28. Control on page 6-5. Equipped). See Assistance 16. Ignition Positions (Key Access) Head-Up Display (HUD) on Systems for Parking or Backing on page 9-15 or Ignition page 5-31 (If Equipped). on page 9-48. Positions (Keyless Access) on page 9-16. 2. Air Vents on page 8-6. 7. Light Sensor. See Automatic Headlamp System on page 6-3. 17. Heated and Ventilated Front 3. Turn Signal Lever. See Turn and 8. Infotainment on page 7-1. Seats on page 3-9 (If Lane-Change Signals on Equipped). page 6-4. 9. Data Link Connector (DLC) (Out 18. Shift Lever. See Automatic 4. Instrument Cluster on page 5-8. of View). See Malfunction Indicator Lamp on page 5-16. Transmission on page 9-27. Driver Information Center 19. Parking Brake on page 9-31. Display. See Driver Information 10. Front Storage on page 4-2. Center (DIC) on page 5-28. 11. Hood Release. See Hood on Traction Control/Electronic Stability Control on page 9-34. 5. Windshield Wiper/Washer on page 10-5. page 5-3. 12. Cruise Control on page 9-37. 20. Dual Automatic Climate Control System on page 8-1. Forward Collision Alert (FCA) System on page 9-50 (If Equipped). 13. Steering Wheel Adjustment on page 5-2. 14. Horn on page 5-3. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
1-4 In Brief
Initial Drive 7 : Press and release to initiate vehicle locator. Press and hold for at Information least three seconds to sound the This section provides a brief panic alarm. Press again to cancel overview about some of the the panic alarm. important features that may or may See Keys on page 2-1 and Remote not be on your specific vehicle. Keyless Entry (RKE) System For more detailed information, refer Operation on page 2-3. to each of the features which can be found later in this owner manual. Remote Vehicle Start For vehicles with this feature, the Remote Keyless Entry With Remote Start Shown engine can be started from outside the vehicle. (RKE) System Press the button to extend the key. The RKE transmitter may work up to The key can be used for all locks. Starting the Vehicle 60 m (197 ft) away from the vehicle. This key is also used for the ignition, if the vehicle does not have 1. Aim the RKE transmitter at the pushbutton start. vehicle. K : Press to unlock the driver door 2. Press and release Q. or all doors. 3. Immediately after completing Q : Press to lock all doors. Step 2, press and hold / for at Lock and unlock feedback can be least four seconds or until the personalized. turn signal lamps flash. Y : Press and hold to release the trunk. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (5,1) 7707475) - 2015 - CRC - 10/9/14
In Brief 1-5
When the engine starts, the parking The time can be extended on a Power Door Locks lamps will turn on and remain on as remote start. The power door lock controls are on long as the engine is running. The See Remote Vehicle Start on the front door panels. doors will be locked and the climate page 2-9. control system may come on. K : Press to unlock all doors. The engine will continue to run for Door Locks Q : Press to lock all doors. 10 minutes. After 30 seconds, To lock or unlock the doors: See Power Door Locks on repeat the steps if a 10-minute time page 2-11. extension is desired. Remote start . From inside the vehicle, use the can be extended only once. door lock knob or the power Trunk Release door lock controls. Pull once on Canceling a Remote Start the door handle to unlock it, and To open the trunk, press and hold To cancel a remote start, do one of a second time to open it. Y on the Remote Keyless Entry the following: . From outside, use the key, (RKE) transmitter to unlock all doors . Aim the RKE transmitter at the or press Q or K on the Remote and then press the touch pad above the license plate. vehicle and press and hold / Keyless Entry (RKE) transmitter. until the parking lamps turn off. See Remote Keyless Entry To open the trunk from inside the (RKE) System Operation on vehicle, press the trunk release . Turn on the hazard warning button on the driver door. The flashers. page 2-3. vehicle must be in P (Park) or off. See Door Locks on page 2-11. . Turn the vehicle on and then off. See Trunk on page 2-13. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (6,1) 7707475) - 2015 - CRC - 10/9/14
1-6 In Brief
Windows Seat Adjustment Seat Height Adjuster Manual Seats
Press the switch to lower the Press and hold the top or bottom of window. Pull the switch up to the switch to raise or lower the seat. raise it. To adjust a manual seat: Release the switch when the desired height is reached. See Power Windows on page 2-20. 1. Pull the handle at the front of the seat. See Seat Adjustment on page 3-4. 2. Slide the seat to the desired position and release the handle. 3. Try to move the seat back and forth to be sure it is locked in place. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (7,1) 7707475) - 2015 - CRC - 10/9/14
In Brief 1-7
Power Seats Lumbar Adjustment Reclining Seatbacks Manual Reclining Seatbacks
To adjust the seat: To adjust the lumbar support: . Move the seat forward or . Press and hold the front or rear To recline a manual seatback: rearward by moving the control of the control to increase or forward or rearward. decrease lumbar support. 1. Lift the lever. 2. Move the seatback to the . Raise or lower the front part of . If equipped, press and hold the the seat cushion by moving the top or bottom of the control to desired position, and then front of the control up or down. raise or lower lumbar support. release the lever to lock the seatback in place. . Raise or lower the entire seat by See Lumbar Adjustment on moving the rear of the control up page 3-5. 3. Push and pull on the seatback to or down. make sure it is locked. See Power Seat Adjustment on page 3-5. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (8,1) 7707475) - 2015 - CRC - 10/9/14
1-8 In Brief
To return the seatback to the upright . Tilt the top of the control forward Heated and Ventilated to raise. position: Seats 1. Lift the lever fully without See Reclining Seatbacks on applying pressure to the page 3-6. seatback, and the seatback will return to the upright position. Memory Features 2. Push and pull on the seatback to make sure it is locked. Power Reclining Seatbacks
Heated and Ventilated Seat Buttons Shown, Heated Seat Buttons Similar If available, the buttons are part of If equipped, the “1,”“2,” and SET the climate control system on the buttons on the driver door are used center stack. To operate, the ignition to manually save and recall the and the climate control system must driver seat and outside mirror be on. If the climate control system To adjust a power seatback: positions. is off, press the O button to turn . Tilt the top of the control See Memory Seats on page 3-7 and it on. rearward to recline. Vehicle Personalization on page 5-45. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (9,1) 7707475) - 2015 - CRC - 10/9/14
In Brief 1-9
Press M or L to heat the driver or Head Restraint Safety Belts passenger seat cushion and Adjustment seatback. Do not drive until the head restraints Press C or {, if equipped, to for all occupants are installed and ventilate the driver or passenger adjusted properly. seat. A ventilated seat has a fan To achieve a comfortable seating that pulls or pushes air through the position, change the seatback seat. The air is not cooled. recline angle as little as necessary Press the button once for the while keeping the seat and the head highest setting. With each press of restraint height in the proper the button, the seat will change to position. the next lower setting, and then to See Head Restraints on page 3-2 the off setting. The lights near the and Seat Adjustment on page 3-4. heated or ventilated seat symbol on Refer to the following sections for the display indicate three for the important information on how to use highest setting and one for the safety belts properly: lowest. . Safety Belts on page 3-12. See Heated and Ventilated Front Seats on page 3-9. . How to Wear Safety Belts Properly on page 3-14. . Lap-Shoulder Belt on page 3-15. . Lower Anchors and Tethers for Children (LATCH System) on page 3-41. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (10,1) 7707475) - 2015 - CRC - 10/9/14
1-10 In Brief
Passenger Sensing is started. See Passenger Sensing See Memory Seats on page 3-7 and System on page 3-26 for important Power Mirrors on page 2-18. System information. Manual Folding Mirrors Mirror Adjustment The outside mirrors can be folded inward to prevent damage when Exterior going through an automatic car wash. To fold, pull the mirror toward the vehicle. Push the mirror outward United States to return it to the original position. See Folding Mirrors on page 2-19. Automatic Dimming Feature If equipped, the driver outside mirror automatically dims to reduce the glare of headlamps from behind. Canada and Mexico See Power Mirrors on page 2-18. The passenger sensing system Interior turns off the front outboard Adjust the rearview mirror for a clear passenger frontal airbag under To adjust the mirrors: view of the area behind your certain conditions. No other airbag 1. Turn the control knob to select vehicle. is affected by the passenger the L (Left) or R (Right) mirror. sensing system. 2. Push the control knob left, right, The passenger airbag status up, or down to adjust the mirror. indicator will be visible on the overhead console when the vehicle Vehicles with the memory feature can store a preferred mirror position. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (11,1) 7707475) - 2015 - CRC - 10/9/14
In Brief 1-11
Manual Rearview Mirror Steering Wheel Interior Lighting If equipped, push the tab forward for Adjustment Dome Lamps daytime use and pull it for nighttime use to avoid glare from headlamps. The interior lamps control in the See Manual Rearview Mirror on overhead console controls both the page 2-20. front and rear interior lamps. Automatic Dimming Rearview Mirror If equipped, automatic dimming reduces the glare of the headlamps from behind. This feature comes on when the vehicle is started. See Automatic Dimming Rearview Mirror on page 2-20. ® Vehicles with OnStar have three To adjust the steering wheel: control buttons at the bottom of the mirror. See your dealer for more 1. Pull the lever down. information on the system and how 2. Move the steering wheel up to subscribe to OnStar. See OnStar or down. Overview on page 14-1. ( : Turns the lamps off. 3. Pull or push the steering wheel H : Turns the lamps on when any closer or away from you. door is opened. 4. Pull the lever up to lock the ' : Keeps the lamps on all steering wheel in place. the time. Do not adjust the steering wheel while driving. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (12,1) 7707475) - 2015 - CRC - 10/9/14
1-12 In Brief
Reading Lamps Exterior Lighting There are front and rear reading lamps.
The rear reading lamps are in the headliner. # or $ : Press to turn each lamp The exterior lamp control is on the on or off. instrument panel on the outboard side of the steering wheel. For more information, see Dome Lamps on page 6-5. Turn the control to the following positions: The front reading lamps are in the O : Turns off the exterior lamps. overhead console. The knob returns to the AUTO position after it is released. Turn to off again to reactivate the AUTO mode. AUTO: Automatically turns the exterior lamps on and off, depending on outside lighting. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (13,1) 7707475) - 2015 - CRC - 10/9/14
In Brief 1-13
; : Turns on the parking lamps, Windshield Wiper/Washer together with the sidemarker lamps, taillamps, license plate lamps, and instrument panel lights. 2 : Turns on the headlamps, together with the parking lamps, sidemarker lamps, taillamps, license plate lamps, and instrument panel INT: Move the lever up to INT for x lights. The windshield wiper/washer lever intermittent wipes, then turn the For more information, see: is on the right side of the steering INT band up for more frequent column. wipes or down for less frequent . Exterior Lamp Controls on wipes. page 6-1. With the ignition in ACC/ ACCESSORY or ON/RUN/START, OFF: Use to turn the wipers off. . Daytime Running Lamps (DRL) move the lever to select the wiper 1X : For a single wipe, briefly move on page 6-2. speed. the lever down. For several wipes, . Fog Lamps on page 6-4. HI: Use for fast wipes. hold the lever down. LO: Use for slow wipes. n L : Pull the lever toward you to spray windshield washer fluid and activate the wipers. See Windshield Wiper/Washer on page 5-3. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (14,1) 7707475) - 2015 - CRC - 10/9/14
1-14 In Brief
Climate Controls 7. Power The heating, cooling, and ventilation for the vehicle can be controlled with 8. A/C (Air Conditioning) this system. 9. Recirculation/Auto Recirculation 10. Rear Window Defogger 11. AUTO (Automatic Operation) See Dual Automatic Climate Control System on page 8-1. Transmission Automatic Transmission Driver Shift Control (DSC) Driver Shift Control (DSC) allows shifting an automatic transmission similar to a manual transmission. DSC can be enabled through the shift lever. See Manual Mode on page 9-29.
1. Driver and Passenger 4. Air Delivery Mode Controls Temperature Controls 5. Defrost 2. Heated and Ventilated Front 6. SYNC (Synchronized Seats Temperature) 3. Fan Control Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (15,1) 7707475) - 2015 - CRC - 10/9/14
In Brief 1-15
Vehicle Features Cruise Control SET−: Press the control down briefly to set the speed and activate cruise control. If cruise control is Infotainment System already active, use to decrease See the infotainment manual for vehicle speed. information on the radio, audio * : Press to disengage cruise players, phone, navigation system, control without erasing the set Rear Seat Entertainment (RSE), speed from memory. and voice or speech recognition. It also includes information on See Cruise Control on page 9-37 settings. and Adaptive Cruise Control on page 9-39 (if equipped). Steering Wheel Controls Driver Information The infotainment system can be operated by using the steering Center (DIC) wheel controls. See "Steering 5 : Press to turn cruise control on The DIC display is in the instrument Wheel Controls" in the infotainment or off. A white indicator comes on in cluster. It shows the status of many manual. the instrument cluster. vehicle systems. RES+: If there is a set speed in memory, press the control up briefly to resume to that speed or press and hold to accelerate. If cruise control is already active, use to increase vehicle speed. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (16,1) 7707475) - 2015 - CRC - 10/9/14
1-16 In Brief
Forward Collision Alert change to amber and flash. In addition, beeps will sound or the (FCA) System driver seat will pulse. If equipped, FCA may help avoid or See Lane Departure Warning (LDW) reduce the harm caused by on page 9-57. front-end crashes. FCA provides a green indicator, V, when a vehicle Lane Change Alert (LCA) is detected ahead. This indicator displays amber if you follow a If equipped, the LCA system is a vehicle much too closely. When lane-changing aid that assists approaching a vehicle ahead too drivers with avoiding lane change quickly, FCA provides a flashing red crashes that occur with vehicles in alert on the windshield and rapidly the side blind zone (or spot) areas y or z : Press to move up or beeps or pulses the driver seat. or with vehicles rapidly approaching down in a list. these areas from behind. The LCA See Forward Collision Alert (FCA) S T S warning display will light up in the or : Press to open System on page 9-50. corresponding outside side mirror application menus on the left. Press and will flash if the turn signal is on. T to open interaction menus on the Lane Departure The Side Blind Zone Alert (SBZA) right. Warning (LDW) system is included as part of the V : Press to open a menu or select LCA system. If equipped, LDW may help avoid a menu item. Press and hold to See Side Blind Zone Alert (SBZA) reset values on certain screens. unintentional lane departures at speeds of 56 km/h (35 mph) or on page 9-54 and Lane Change See Driver Information Center (DIC) greater. LDW uses a camera sensor Alert on page 9-55. on page 5-28. to detect the lane markings. The LDW light, @, is green if a lane marking is detected. If the vehicle departs the lane, the light will Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (17,1) 7707475) - 2015 - CRC - 10/9/14
In Brief 1-17
Rear Vision Parking Assist vehicle to help avoid or lessen the severity of crashes when driving in a Camera (RVC) If equipped, Rear Parking Assist forward gear. If equipped, RVC displays a view of (RPA) uses sensors on the rear bumper to assist with parking and See Active Emergency Braking the area behind the vehicle on the System on page 9-53. center stack display when the avoiding objects while in vehicle is shifted into R (Reverse) to R (Reverse). It operates at speeds aid with parking and low-speed less than 8 km/h (5 mph). RPA may Power Outlets backing maneuvers. display a warning triangle on the The accessory power outlets can be Rear Vision Camera screen and/or See Assistance Systems for Parking used to plug in electrical equipment, a graphic on the instrument cluster such as a cell phone or MP3 player. or Backing on page 9-48. to provide the object distance. In addition, multiple beeps may occur There are two accessory power Rear Cross Traffic Alert if very close to an object. outlets: one under the armrest (RCTA) System inside the center console storage, See Assistance Systems for Parking and one on the rear of the center If equipped, the RCTA system uses or Backing on page 9-48. floor console. a triangle with an arrow displayed Open the protective cover to use the on the RVC screen to warn of traffic Active Emergency accessory power outlet. behind your vehicle that may cross Braking System your vehicle's path while in See Power Outlets on page 5-5. R (Reverse). In addition, beeps will If the vehicle has Adaptive Cruise sound, or the driver seat will pulse. Control (ACC) it also has the Active Emergency Braking System, which See Assistance Systems for Parking includes Intelligent Brake or Backing on page 9-48. Assist (IBA) and the Automatic Collision Preparation (ACP) System. These systems can provide a boost to braking or automatically brake the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (18,1) 7707475) - 2015 - CRC - 10/9/14
1-18 In Brief
Universal Remote System helpful to have another person The ignition must be in ON/RUN or available to assist with programming ACC/ACCESSORY, or Retained the Universal Remote system. Accessory Power (RAP) must be See Universal Remote System on active. See Retained Accessory page 5-51. Power (RAP) on page 9-23. Vent: Press the rear of the Sunroof switch (2) to the first detent to vent the sunroof. Press the front of the switch (1) to the second detent to close the sunroof. Express-open/Express-close: To express-open the sunroof, fully press and release the rear of the switch (2). To express-close, fully If equipped, these buttons in the press and release the front of the overhead console provide a way to switch (1). To stop the sunroof replace up to three remote control partway, press either switch a transmitters used to activate second time. devices such as garage door The sunshade opens automatically openers, security systems, and with the sunroof. home automation devices. On vehicles with a sunroof, the Read the instructions completely switches are located on the before attempting to program the overhead console. Universal Remote system. Because of the steps involved, it may be Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (19,1) 7707475) - 2015 - CRC - 10/9/14
In Brief 1-19
To express-open the sunshade, fully eAssist Features There are two air conditioning press and release the rear of the settings available. The comfort switch (3). To stop the sunshade ® setting maximizes cabin comfort. partway, press the switch a second eAssist Overview The eco setting maximizes time. To express-close, fully press If the vehicle has eAssist, there are efficiency allowing more frequent, and release the front of the several additional features that and longer engine stops than the switch (4). To stop the sunshade contribute to increased efficiency. comfort setting. See Dual Automatic partway, press the switch a Climate Control System on second time. Vehicles with eAssist have an page 8-1. automatic engine start/stop feature. See Sunroof on page 2-23. This feature saves fuel by shutting This vehicle has a Hill Start Assist the engine off when the vehicle is (HSA) feature, which may be useful stopped. When the engine shuts off when the vehicle is stopped on a automatically, all the accessories grade. See Hill Start Assist (HSA) will continue to operate normally. In on page 9-33. very hot or cold conditions, the Vehicles with eAssist include an engine may not shut off. See AUTO STOP indicator on the Starting the Engine on page 9-18. tachometer. See Instrument Cluster on page 5-8. The eAssist system uses a high voltage battery, which is cooled with air drawn from the vehicle interior. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (20,1) 7707475) - 2015 - CRC - 10/9/14
1-20 In Brief
In emergency situations, first engine starts immediately. The responders can cut the two clearly vehicle continues to run until the labeled cut points in the engine next stop. compartment to disable the high AUTO STOP on the tachometer voltage battery and air bag signifies that the engine is in auto systems — do not cut the high stop mode. See Tachometer on voltage cable. page 5-11 for more information. A chime will sound when the driver Automatic Engine Start/ door is opened while in auto stop Stop Feature mode. Remember to shift to P (Park) and turn the ignition to LOCK/OFF Vehicles with eAssist have an before exiting the vehicle. automatic engine start/stop feature. The cold air intake for the battery is After the engine is started and has See Starting the Engine on located behind the rear seat, on the reached operating temperature, the page 9-18. filler panel. Do not cover the intake. auto stop feature may cause the See Battery on page 10-27. engine to turn off when the brake Regenerative Braking pedal is applied and the vehicle Regenerative braking takes some of High Voltage Safety comes to a complete stop. When the energy from the moving vehicle the brake pedal is released, or the Information and turns it into electrical energy. accelerator pedal is applied, the This energy is then stored in the Vehicles with eAssist have a engine will restart. The engine will vehicle's high voltage battery standard 12-volt battery and a high continue to run until the next system, contributing to increased voltage battery. Only a trained auto stop. service technician with the proper fuel efficiency. To restart the engine during the auto knowledge and tools should inspect, The system works whenever the stop, release the brake pedal or test, or replace the high voltage accelerator pedal is released, and press the accelerator pedal. The battery. See your dealer if the high increases the energy captured as voltage battery needs service. more brake pedal is applied. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (21,1) 7707475) - 2015 - CRC - 10/9/14
In Brief 1-21
Battery . Press and release the TCS/ Performance and StabiliTrak button again to turn This vehicle has a standard 12-volt Maintenance on traction control. battery. Refer to the replacement . To turn off both TCS and number on the original battery label Traction Control/ StabiliTrak, press and hold the when a new standard 12-volt battery TCS/StabiliTrak button on the is needed. Electronic Stability Control center console behind the shift Vehicles with eAssist also have a lever, until i and g illuminate high voltage battery. Only a trained The traction control system limits and the appropriate DIC service technician with the proper wheel spin. The system turns on message is displayed. See Ride knowledge and tools should inspect, automatically every time the vehicle Control System Messages on test, or replace the high voltage is started. page 5-42. battery. See your dealer if the high . voltage battery needs service. See To turn off traction control, press . Press and release the TCS/ Battery on page 10-27. and release the Traction Control StabiliTrak button to turn on both System (TCS)/StabiliTrak button systems. on the center console behind the Service See Traction Control/Electronic shift lever. i illuminates and the Stability Control on page 9-34. Never try to do your own service on appropriate DIC message is eAssist components. You can be displayed. See Ride Control injured and the vehicle can be System Messages on page 5-42. damaged if you try to do your own service work. Service and repair of these high voltage components should only be performed by a trained service technician with the proper knowledge and tools. See Doing Your Own Service Work on page 10-4. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (22,1) 7707475) - 2015 - CRC - 10/9/14
1-22 In Brief
Tire Pressure Monitor The low tire pressure warning light Resetting the Oil Life System may come on in cool weather when 1. Using the DIC controls on the This vehicle may have a Tire the vehicle is first started, and then Pressure Monitor System (TPMS). right side of the steering wheel, turn off as the vehicle is driven. This display REMAINING OIL LIFE may be an early indicator that the on the DIC. See Driver tire pressures are getting low and Information Center (DIC) on the tires need to be inflated to the page 5-28. When remaining oil proper pressure. life is low, the CHANGE The TPMS does not replace normal ENGINE OIL SOON message monthly tire maintenance. Maintain will appear on the display. See the correct tire pressures. Engine Oil Messages on The low tire pressure warning light page 5-38. alerts to a significant loss in See Tire Pressure Monitor System pressure of one of the vehicle's on page 10-51. 2. Press V on the DIC controls and tires. If the warning light comes on, hold down for a few seconds to stop as soon as possible and inflate Engine Oil Life System clear the CHANGE ENGINE OIL the tires to the recommended The engine oil life system calculates SOON message and reset the pressure shown on the Tire and engine oil life based on vehicle use oil life at 100%. Loading Information label. See and displays the CHANGE ENGINE Be careful not to reset the oil life Vehicle Load Limits on page 9-10. OIL SOON message when it is time display accidentally at any time The warning light will remain on until to change the engine oil and filter. other than after the oil is the tire pressure is corrected. The oil life system should be reset changed. It cannot be reset to 100% only following an oil accurately until the next oil change. change. See Engine Oil Life System on page 10-13. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (23,1) 7707475) - 2015 - CRC - 10/9/14
In Brief 1-23
E85 or FlexFuel . Always follow posted speed See Roadside Assistance Program limits or drive more slowly when on page 13-5. Vehicles with a yellow fuel cap can conditions require. use either unleaded gasoline or ® . Keep vehicle tires properly OnStar ethanol fuel containing up to 85% inflated. ethanol (E85). See E85 or FlexFuel This vehicle may be equipped with a on page 9-60. For all other vehicles, . Combine several trips into a comprehensive, in-vehicle system use only the unleaded gasoline single trip. that can connect to a live OnStar described under Fuel on page 9-58. . Replace the vehicle's tires with Advisor for Emergency, Security, the same TPC Spec number Navigation, Connection, and Driving for Better Fuel molded into the tire's sidewall Diagnostic Services. OnStar near the size. services may require a paid Economy subscription. See OnStar Overview Driving habits can affect fuel . Follow recommended scheduled on page 14-1. mileage. Here are some driving tips maintenance. to get the best fuel economy possible. Roadside Assistance . Avoid fast starts and accelerate Program smoothly. U.S.: 1-800-252-1112 . Brake gradually and avoid TTY Users (U.S. Only): abrupt stops. 1-888-889-2438 . Avoid idling the engine for long Canada: 1-800-268-6800 periods of time. New Buick owners are automatically . When road and weather enrolled in the Roadside Assistance conditions are appropriate, use Program. cruise control. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (24,1) 7707475) - 2015 - CRC - 10/9/14
1-24 In Brief
2 NOTES Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-1
Immobilizer ...... 2-16 Keys and Locks Keys, Doors, and Immobilizer Operation (Key Windows Access) ...... 2-16 Immobilizer Operation Keys (Keyless Access) ...... 2-17 { Warning Keys and Locks Exterior Mirrors Keys ...... 2-1 Convex Mirrors ...... 2-18 Remote Keyless Entry (RKE) Leaving children in a vehicle with Power Mirrors ...... 2-18 an ignition key or Remote System ...... 2-2 Folding Mirrors ...... 2-19 Remote Keyless Entry (RKE) Keyless Entry (RKE) transmitter is Heated Mirrors ...... 2-19 dangerous and children or others System Operation ...... 2-3 Reverse Tilt Mirrors ...... 2-19 Remote Vehicle Start ...... 2-9 could be seriously injured or Door Locks ...... 2-11 Interior Mirrors killed. They could operate the Power Door Locks ...... 2-11 Interior Rearview Mirrors . . . . . 2-19 power window or other controls or Delayed Locking ...... 2-12 Manual Rearview Mirror ...... 2-20 make the vehicle move. The Automatic Door Locks ...... 2-12 Automatic Dimming Rearview windows will function with the key Lockout Protection ...... 2-12 Mirror ...... 2-20 in the ignition or with the RKE Safety Locks ...... 2-12 Windows transmitter in the vehicle, and children or others could be caught Doors Windows ...... 2-20 Trunk ...... 2-13 Power Windows ...... 2-20 in the path of a closing window. Sun Visors ...... 2-22 Do not leave children in a vehicle Vehicle Security Rear Window Sunshade . . . . . 2-22 with the ignition key or an RKE Vehicle Security ...... 2-15 transmitter. Vehicle Alarm System ...... 2-15 Roof Sunroof ...... 2-23 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
2-2 Keys, Doors, and Windows
With an active OnStar subscription, an OnStar Advisor may remotely unlock the vehicle. See OnStar Overview on page 14-1. Remote Keyless Entry (RKE) System See Radio Frequency Statement on page 13-12. If there is a decrease in the RKE operating range: The key that is part of the Remote Press the button on the RKE . Check the distance. The Keyless Entry (RKE) transmitter can transmitter to extend the key. Press transmitter may be too far from be used for the ignition and all locks the button and the key blade to the vehicle. if the vehicle is a key access retract the key. . Check the location. Other vehicle. If the vehicle has the If it becomes difficult to turn the key keyless ignition, the key can be vehicles or objects may be in a vehicle lock, inspect the key blocking the signal. used for the locks. blade for debris. Periodically clean with a brush or pick. . Check the transmitter's battery. See “Battery Replacement” later See your dealer if a new key is in this section. needed. . If the transmitter is still not If locked out of the vehicle, see working correctly, see your Roadside Assistance Program on dealer or a qualified technician page 13-5. for service. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-3
Remote Keyless Entry Q (Lock): Press to lock all doors. Pressing K will disarm the (RKE) System Operation The turn signal indicators may flash theft-deterrent system. See Vehicle Alarm System on page 2-15. The Keyless Access system allows and/or the horn may sound on the for vehicle entry when the second press to indicate locking. Memory seat positions may be transmitter is within range. See See “Remote Lock Feedback” under recalled when unlocking the vehicle. Vehicle Personalization on “Keyless Access Operation” later in See Memory Seats on page 3-7 and this section. page 5-45. “Auto Memory Recall” under Vehicle Personalization on page 5-45. The transmitter functions may work If the driver door is open when Q is up to 60 m (197 ft) away from the pressed, all doors lock except the Y (Remote Trunk Release): vehicle. driver door, if enabled through the Press and hold to release the trunk. vehicle personalization. Other conditions can impact the 7 (Vehicle Locator/Panic performance of the transmitter. If the passenger door is open when Alarm): Press and release to Q is pressed, all doors lock. initiate vehicle locator. The exterior lamps flash and the horn chirps Pressing Q may also arm the three times. theft-deterrent system. See Vehicle Alarm System on page 2-15. Press and hold 7 for at least K three seconds to sound the panic (Unlock): Press to unlock the alarm. The horn sounds and the driver door or all doors. See “Door turn signals flash until 7 is pressed Unlock Options” under Vehicle Personalization on page 5-45. again or the vehicle is started. / The turn signal indicators may flash (Remote Vehicle Start): to indicate unlocking. See “Remote If equipped, press Q and release Unlock Light Feedback” under and then immediately press and Vehicle Personalization on hold / for at least four seconds to page 5-45. start the engine from outside the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
2-4 Keys, Doors, and Windows
vehicle using the RKE transmitter. Keyless Unlocking/Locking from Pressing the lock/unlock button will See Remote Vehicle Start on the Driver Door cause all doors to lock if any of the page 2-9. When the doors are locked and the following occur: The RKE transmitter buttons will not RKE transmitter is within 1 m (3 ft) . It has been more than operate when the key is in the of the driver door handle, pressing five seconds since the first lock/ ignition. the lock/unlock button on the driver unlock button press. door handle will unlock the driver Keyless Access Operation . Two lock/unlock button presses door. If the lock/unlock button is were used to unlock all doors. If equipped with a Keyless Access pressed again within five seconds, system, it allows for locking and all passenger doors will unlock. . Any vehicle door has opened unlocking the doors and accessing and all doors are now closed. the trunk without removing the RKE Keyless Unlocking/Locking from transmitter from your pocket, purse, Passenger Doors briefcase, etc. The RKE transmitter should be within 1 m (3 ft) of the When the doors are locked and the door or trunk being opened. If the RKE transmitter is within 1 m (3 ft) vehicle has this feature, there will be of the door handle, pressing the buttons on the outside of the door lock/unlock button on that door handles. handle will unlock all doors. Keyless Access can be Pressing the lock/unlock button will programmed to unlock all doors on cause all doors to lock if any of the the first unlock/lock button press following occur: from the driver door. See Vehicle Driver Side Shown, Passenger . The lock/unlock button was used Personalization on page 5-45. Similar to unlock all doors. . Any vehicle door has opened and all doors are now closed. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (5,1) 7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-5
Passive Locking disabled until Q on the interior door Programming with a Recognized If equipped with Keyless Access, is pressed, or until the vehicle is Transmitter (Key Vehicles Only) the vehicle will lock several seconds turned on. To program a new key: after all doors are closed if the To customize the doors to 1. Insert the original, already vehicle is off and at least one automatically lock when exiting the programmed key in the ignition transmitter has been removed or vehicle, see “Remote Lock, Unlock, and turn to the key to the ON/ none remain in the interior. Start” under Vehicle Personalization RUN position. on page 5-45. If other electronic devices interfere 2. Turn the key to LOCK/OFF and with the RKE transmitter signal, the Keyless Trunk Opening remove the key. vehicle may not detect the RKE transmitter inside the vehicle. Lift up on the touch pad above the 3. Insert the new key to be If passive locking is enabled, the license plate to open the trunk if the programmed and turn it to the doors may lock with the RKE RKE transmitter is within 1 m (3 ft). ON/RUN position within five seconds. transmitter inside the vehicle. Do Programming Transmitters to not leave the RKE transmitter in an the Vehicle The security light will turn off unattended vehicle. once the key has been Only RKE transmitters programmed Temporary Disable Passive programmed. to the vehicle will work. If a Locking Feature transmitter is lost or stolen, a 4. Repeat Steps 1–3 if additional Temporarily disable the passive replacement can be purchased and keys are to be programmed. locking by pressing and holding K programmed through your dealer. If a key is lost or damaged, see your on the interior door switch with a The vehicle can be reprogrammed dealer to have a new key made. door open for at least four seconds, so that lost or stolen transmitters no or until three chimes are heard. longer work. Any remaining Passive locking will then remain transmitters will need to be reprogrammed. Each vehicle can have up to eight transmitters matched to it. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (6,1) 7707475) - 2015 - CRC - 10/9/14
2-6 Keys, Doors, and Windows
Programming without a 5. Repeat Steps 2–4 two more 2. Insert the vehicle key of the new Recognized Transmitter (Key times. After the third time, turn to transmitter into the key lock Vehicles Only) ON/RUN; the key is learned and cylinder on the outside of the Program a new key to the vehicle all previously known keys will no driver door and turn the key to when a recognized key is not longer work with the vehicle. the unlock position five times available. Canadian regulations Remaining keys can be learned by within 10 seconds. require that owners see their following the procedure in The Driver Information Center dealer. “Programming with a Recognized (DIC) displays READY FOR If there are no currently recognized Transmitter (Key Vehicles Only).” REMOTE #2, 3, 4 or 5. keys available, follow this procedure Programming with a Recognized to program the first key. Transmitter (Keyless Access This procedure will take Vehicles Only) approximately 30 minutes to A new transmitter can be complete for the first key. The programmed to the vehicle when vehicle must be off and all of the there is one recognized transmitter. keys you wish to program must be To program, the vehicle must be off with you. and all of the transmitters, both 1. Insert the new vehicle key into currently recognized and new, must the ignition. be with you. 2. Turn to ON/RUN. The security 1. Place the recognized light will come on. transmitter(s) in the cupholder. 3. Place the new transmitter into 3. Wait 10 minutes until the the transmitter pocket inside the security light turns off. armrest storage area. 4. Turn the ignition to LOCK/OFF. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (7,1) 7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-7
4. Press the ENGINE START/ to complete. The vehicle must be off 3. Repeat Step 2 two additional STOP button. When the and all of the transmitters you wish times. After the third time, all transmitter is learned, the DIC to program must be with you. previously known transmitters will show that it is ready to 1. Insert the vehicle key of the will no longer work with the program the next transmitter. transmitter into the key lock vehicle. Remaining transmitters 5. Remove the transmitter from the cylinder on the outside of the can be relearned during the next steps. transmitter pocket and press K. driver door and turn the key to the unlock position five times The DIC display should now To program additional within 10 seconds. show READY FOR transmitters, repeat Steps 3–5. The Driver Information Center REMOTE #1. When all additional transmitters (DIC) displays REMOTE LEARN are programmed, press and hold PENDING, PLEASE WAIT. the ignition for 12 seconds to exit programming mode. 2. Wait for 10 minutes until the DIC displays PRESS ENGINE Programming without a START BUTTON TO LEARN Recognized Transmitter (Keyless and then press the ignition. Access Vehicles Only) The DIC displays will again If there are no currently recognized show REMOTE LEARN transmitters available, follow this PENDING, PLEASE WAIT. procedure to program up to eight transmitters. This feature is not available in Canada. This procedure will take approximately 30 minutes 4. Place the new transmitter into the transmitter pocket inside the armrest storage area. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (8,1) 7707475) - 2015 - CRC - 10/9/14
2-8 Keys, Doors, and Windows
5. Press the ENGINE START/ Battery Replacement STOP button. When the Replace the battery if the REPLACE transmitter is learned the DIC BATTERY IN REMOTE KEY will show that it is ready to message displays in the DIC. See program the next transmitter. Key and Lock Messages on 6. Remove the transmitter from the page 5-39. transmitter pocket and press K. To program additional { Caution transmitters, repeat Steps 4 6. – When replacing the battery, do When all additional transmitters not touch any of the circuitry on are programmed, press and hold the transmitter. Static from your the ignition for 12 seconds to To start the vehicle: body could damage the exit programming mode. 1. Place the transmitter in the transmitter. Starting the Vehicle with a Low transmitter pocket inside the Transmitter Battery armrest storage area. The battery is not rechargeable. To replace the battery: When starting the vehicle, if the 2. With the vehicle in P (Park) or transmitter battery is weak or there N (Neutral), press the brake 1. Push the button on the is interference with the signal, the pedal and the ENGINE START/ transmitter to extend the key. DIC may display NO REMOTE STOP button. See Starting the Engine on page 9-18 for 2. Remove the battery cover by DETECTED or NO REMOTE KEY prying it with a finger. WAS DETECTED, PLACE KEY IN additional information about the TRANSMITTER POCKET, THEN vehicle's keyless ignition with 3. Remove the battery by pushing START YOUR VEHICLE. The pushbutton start. on the battery and sliding it REPLACE BATTERY IN REMOTE Replace the transmitter battery toward the key blade. KEY message may also be as soon as possible. displayed at this time. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (9,1) 7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-9
4. Insert the new battery, positive Starting the Engine Using Remote The engine will shut off after side facing up. Push the battery Start 10 minutes unless a time extension down until it is held in place. To start the engine using the remote is done or the ignition is put in ON/ Replace with a CR2032 or start feature: RUN (Key Access) or ON/RUN/ equivalent battery. START (Keyless Access). 1. Aim the RKE transmitter at the 5. Snap the battery cover back on vehicle. The climate control system will use to the transmitter. the previous setting during a remote 2. Press and release Q. start. The rear defog may come on Remote Vehicle Start during remote start based on cold 3. Immediately after completing ambient conditions. The rear defog If available, this feature allows the Step 2, press and hold / for at indicator light does not come on engine to be started from outside least four seconds or until the during remote start. See “Remote the vehicle. turn signal lamps flash. The turn Start Climate Control Operation” in The / button will be on the RKE signal lamps flashing confirms Dual Automatic Climate Control the request to remote start the transmitter if the vehicle has remote System on page 8-1. Vehicles with vehicle has been received. start. heated or heated and ventilated When the engine starts, the front seats can have this feature Laws in some local communities parking lamps will turn on and turn on automatically during a may restrict the use of remote remain on as long as the engine remote start. See “Remote Start starters. For example, some laws is running. The doors will be Auto Heat Seats” and “Remote Start may require a person using remote locked and the climate control Auto Cool Seats” under Vehicle start to have the vehicle in view. system may come on. Personalization on page 5-45. Check local regulations for any requirements. Turn the ignition to ON/RUN (Key Access), or select the ON/RUN/ START ignition position (Keyless Access), to drive the vehicle. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (10,1) 7707475) - 2015 - CRC - 10/9/14
2-10 Keys, Doors, and Windows
Extending Engine Run Time Canceling a Remote Start . The transmitter is in the vehicle (Keyless Access). The engine run time can also be To cancel a remote start, do any of extended by another 10 minutes, the following: . The hood is not closed. if during the first 10 minutes . . Aim the RKE transmitter at the The hazard warning flashers Steps 1–3 are repeated while the / are on. engine is still running. An extension vehicle and press and hold . can be requested, 30 seconds after until the parking lamps turn off. There is an emission control system malfunction. starting. This provides a total of . Turn on the hazard warning 20 minutes. flashers. . The engine coolant temperature is too high. The remote start can only be . Turn the vehicle on and then off. extended once. . The oil pressure is low. Conditions in Which Remote Start When the remote start is extended, Will Not Work . Two remote vehicle starts have the second 10-minute period is already been used. added on to the first 10 minutes for The remote start will not operate if: . The vehicle is not in P (Park). a total of 20 minutes. . The key is in the ignition (Key A maximum of two remote starts, Access) or the ignition is in any or a remote start with an extension, position other than OFF (Keyless are allowed between ignition cycles. Access). The vehicle's ignition must be changed to ON/RUN/START and then back to OFF before the remote start procedure can be used again. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (11,1) 7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-11
Door Locks . Pulling the door handle once will Warning (Continued) unlock the door. Pulling the door handle again will unlatch it. { Warning . Outsiders can easily enter through an unlocked door Power Door Locks Unlocked doors can be when slowing or stopping the dangerous. vehicle. Lock the doors to . Passengers, especially help prevent this from children, can easily open the happening. doors and fall out of a moving vehicle. The chance of being To lock or unlock the doors from the thrown out of the vehicle in a outside, press Q or K on the crash is increased if the Remote Keyless Entry (RKE) doors are not locked. So, all transmitter or use the key in the passengers should wear door. See Remote Keyless Entry safety belts properly and the (RKE) System Operation on doors should be locked page 2-3. whenever the vehicle is driven. To lock or unlock the doors from the inside: . Young children who get into K : Press to unlock the doors. unlocked vehicles may be . K Press Q or on a power door Q : Press to lock the doors. unable to get out. A child can lock switch. be overcome by extreme heat See Vehicle Personalization on . and can suffer permanent Pushing down the manual lock page 5-45 for more information. injuries or even death from knob on the driver door will lock heat stroke. Always lock the all doors. Pushing down the vehicle whenever leaving it. manual lock knob on a passenger door will lock that (Continued) door only. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (12,1) 7707475) - 2015 - CRC - 10/9/14
2-12 Keys, Doors, and Windows
Delayed Locking Automatic Door Locks If equipped with a keyed ignition, and the key is in the ignition when This feature delays the locking of The doors will lock automatically locking is requested with the driver the doors until five seconds after all when all doors are closed, the door open, all doors will lock and doors are closed. ignition is on, and the shift lever is then the driver door will unlock. moved out of P (Park). When Q is pressed on the power Lockout Protection with the key in door lock switch while the door is To unlock the doors: the ignition can be manually open, a chime will sound three . Press K on a door. overridden with the driver door open times indicating delayed locking is by pressing and holding on the . Q active. Shift the transmission into power door lock switch. P (Park). The doors will lock automatically If Unlocked Door Anti Lockout is five seconds after all doors are Automatic door unlocking can be turned on and the vehicle is off, and closed. If a door is reopened before programmed through the Driver locking is requested with the driver that time, the five-second timer will Information Center (DIC). See door open, all doors will lock and reset when all doors are closed Vehicle Personalization on only the driver door will unlock. The again. page 5-45. Unlocked Door Anti Lockout feature Press Q on the door lock switch can be turned on or off using the Lockout Protection vehicle personalization menus. See again or press on the RKE Q If equipped with pushbutton start Vehicle Personalization on transmitter to lock doors and the vehicle is in ACC/ page 5-45. immediately. ACCESSORY or ON/RUN/START, This feature can also be and locking is requested with the Safety Locks programmed. See Vehicle driver door open, all doors will lock The rear door safety locks prevent Personalization on page 5-45. and only the driver door will unlock. passengers from opening the rear doors from inside the vehicle. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (13,1) 7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-13
Manual Safety Locks To open a rear door when the safety Doors lock is on: 1. Unlock the door by activating the Trunk inside handle, by using the power door lock switch, or by using the Remote Keyless { Warning Entry (RKE) transmitter. Exhaust gases can enter the 2. Open the door from the outside. vehicle if it is driven with the To cancel the safety lock: liftgate, trunk/hatch open, or with any objects that pass through the 1. Unlock the door and open it from seal between the body and the the outside. trunk/hatch or liftgate. Engine 2. Insert the key into the safety lock exhaust contains carbon slot and turn it so the slot is in monoxide (CO) which cannot be If equipped, the safety lock is the vertical position. Do the seen or smelled. It can cause located on the inside edge of the same for the other door. rear doors. To use the safety lock: unconsciousness and even death. 1. Insert the key into the safety lock If the vehicle must be driven with slot and turn it so the slot is in the liftgate, or trunk/hatch open: the horizontal position. . Close all of the windows. 2. Close the door. . Fully open the air outlets on 3. Do the same for the other or under the instrument rear door. panel. (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (14,1) 7707475) - 2015 - CRC - 10/9/14
2-14 Keys, Doors, and Windows
Remote Trunk Release To open the trunk from outside the Warning (Continued) vehicle, press and hold Y on the . Adjust the climate control Remote Keyless Entry (RKE) system to a setting that transmitter to unlock all doors, then brings in only outside air and use the touch pad above the license set the fan speed to the plate. If equipped with Keyless highest setting. See “Climate Access, the trunk can be opened Control Systems” in the using the touch pad when the RKE Index. transmitter is within 1 m (3 ft) of the rear of the vehicle. . If the vehicle has a power liftgate, disable the power Emergency Trunk Release liftgate function. Handle For more information about { Caution carbon monoxide, see Engine To open the trunk, press V on the Exhaust on page 9-26. driver door when the vehicle is off or Do not use the emergency trunk in P (Park). release handle as a tie-down or anchor point when securing items in the trunk as it could damage the handle. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (15,1) 7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-15
Vehicle Security On Solid: Vehicle is secured during the delay to arm the system. This vehicle has theft-deterrent Fast Flash: Vehicle is unsecured. features; however, they do not make A door, the hood, or the trunk the vehicle impossible to steal. is open. Vehicle Alarm System Slow Flash: Alarm system is armed. This vehicle has an anti-theft alarm system. Arming the Alarm System 1. Turn off the vehicle. 2. Lock the vehicle in one of There is an emergency trunk three ways: release handle located inside the . Use the RKE transmitter. trunk on the trunk latch. On some vehicles, the release handle can be . Use the Keyless Access accessed by folding the rear seat system, if equipped. center seatback. See Rear Seats on . With a door open, press Q page 3-11. Pull the release handle on the interior of the door. to open the trunk from the inside. 3. After 30 seconds the alarm After use, return to the stored system will arm, and the position. indicator light will begin to slowly The indicator light, on the flash indicating the alarm system instrument panel near the is operating. Pressing Q on the windshield, indicates the status of RKE transmitter a second time the system. Off: Alarm system is disarmed. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (16,1) 7707475) - 2015 - CRC - 10/9/14
2-16 Keys, Doors, and Windows
will bypass the 30-second delay Disarming the Alarm System How to Detect a Tamper and immediately arm the alarm To disarm the alarm system, or turn Condition system. off the alarm if it has been activated, If K is pressed on the transmitter The vehicle alarm system will not do one of the following: and the horn chirps and the lights arm if the doors are locked with flash three times, the alarm was the key. . Press K on the RKE transmitter. activated while the system was If the driver door is opened without . Unlock the vehicle using the armed. first unlocking the RKE transmitter, Keyless Access system, If the alarm has been activated, a the horn will chirp and the lights will if equipped. message will appear on the DIC. flash to indicate pre-alarm. If the . Start the vehicle. See Security Messages on vehicle is not started, or the door is To avoid setting off the alarm by page 5-43. not unlocked by pressing K on the accident: RKE transmitter during the Immobilizer 10-second pre-alarm, the alarm will . Lock the vehicle after all be activated. occupants have left the vehicle See Radio Frequency Statement on and all doors are closed. page 13-12. The alarm will also be activated if a passenger door, the trunk, or the . Always unlock a door with the hood is opened without first RKE transmitter or use the Immobilizer Operation disarming the system. When the Keyless Access system. (Key Access) alarm is activated, the turn signals Unlocking the driver door with the This vehicle has a passive flash and the horn sounds for about key will not disarm the alarm system theft-deterrent system. 30 seconds. The alarm system will or turn off the alarm. then re-arm to monitor for the next The system does not have to be unauthorized event. manually armed or disarmed. The vehicle is automatically immobilized when the key is removed from the ignition. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (17,1) 7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-17
The system is automatically If the engine still does not start, and The immobilization system is disarmed when the vehicle is the key appears to be undamaged disarmed when the ignition button is started with the correct key. The key or the light continues to stay on, try pushed in and a valid transmitter is uses a transponder that matches an another ignition key. found in the vehicle. immobilizer control unit in the If the engine still does not start with vehicle and automatically disarms the other key, the vehicle needs the system. Only the correct key service. If the vehicle does start, the starts the vehicle. The vehicle may first key may be damaged. See your not start if the key is damaged. dealer who can service the theft-deterrent system and have a new key made. The security light on the instrument Do not leave the key or device that cluster comes on when there is a disarms or deactivates the problem with arming or disarming theft-deterrent system in the vehicle. the theft-deterrent system. Immobilizer Operation The system has one or more The security light in the instrument transmitters matched to an cluster comes on if there is a (Keyless Access) immobilizer control unit in the problem with arming or disarming This vehicle has a passive vehicle. Only a correctly matched the theft-deterrent system. theft-deterrent system. transmitter will start the vehicle. When trying to start the vehicle, the If the transmitter is ever damaged, The system does not have to be security light comes on briefly when you may not be able to start your manually armed or disarmed. the ignition is turned on. vehicle. The vehicle is automatically If the engine does not start and the When trying to start the vehicle, the immobilized when the transmitter security light stays on, there is a security light comes on briefly when leaves the vehicle. problem with the system. Turn the the ignition is turned on. ignition off and try again. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (18,1) 7707475) - 2015 - CRC - 10/9/14
2-18 Keys, Doors, and Windows
If the vehicle does not start and the Exterior Mirrors Power Mirrors security light stays on, there is a problem with the system. Turn the vehicle off and try again. Convex Mirrors If the RKE transmitter appears to be undamaged, try another transmitter, { Warning or place the transmitter in the A convex mirror can make things, transmitter pocket. See “Starting the like other vehicles, look farther Vehicle with a Low Transmitter away than they really are. If you Battery under Remote Keyless ” cut too sharply into the right lane, Entry (RKE) System Operation on page 2-3. you could hit a vehicle on the right. Check the inside mirror or If the vehicle does not start with the glance over your shoulder before other transmitter or when the changing lanes. transmitter is in the transmitter To adjust the mirrors: pocket, your vehicle needs service. 1. Turn the control knob to the L See your dealer who can service The passenger side mirror is convex (Left) or R (Right) selecting the the theft-deterrent system and have shaped. A convex mirror's surface is driver or passenger mirror. a new transmitter programmed to curved so more can be seen from the vehicle. the driver seat. 2. Push the control knob to the left, right, up, or down to adjust the Do not leave the transmitter or mirror. device that disarms or deactivates the theft-deterrent system in the Vehicles with the memory feature vehicle. can store a preferred mirror position. See Memory Seats on page 3-7. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (19,1) 7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-19
Folding Mirrors See “Rear Window Defogger” under Interior Mirrors Dual Automatic Climate Control Manual Folding Mirrors System on page 8-1. Interior Rearview Mirrors These mirrors can be folded inward to prevent damage when going Reverse Tilt Mirrors Adjust the rearview mirror for a clear view of the area behind your through an automatic car wash. To If equipped with memory seats, the vehicle. fold, pull the mirror toward the passenger and/or driver mirror tilts vehicle. Push the mirror outward to to a preselected position when the If equipped with OnStar, the vehicle return it to the original position. vehicle is in R (Reverse). This may have three control buttons at Automatic Dimming Feature allows the curb to be seen when the bottom of the mirror. See your parallel parking. dealer for more information about The vehicle may have a driver OnStar and how to subscribe to it. The mirror(s) return to the original outside mirror that automatically See OnStar Overview on page 14-1. adjusts for the glare of the position when: Do not spray glass cleaner directly headlamps behind. . The vehicle is shifted out of on the mirror. Use a soft towel R (Reverse), or remains in dampened with water. Turn Signal Indicator R (Reverse) for about The vehicle may have a turn signal 30 seconds. indicator lamp built into the mirror . The ignition is turned off. housing. The turn signal lamp flashes when the turn signals or . The vehicle is driven in hazard flashers are used. R (Reverse) above a set speed. To turn this feature on or off, see Heated Mirrors Vehicle Personalization on page 5-45. For vehicles with heated mirrors: 1 (Rear Window Defogger): Press to heat the mirrors. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (20,1) 7707475) - 2015 - CRC - 10/9/14
2-20 Keys, Doors, and Windows
Manual Rearview Mirror Windows The vehicle aerodynamics are designed to improve fuel economy If equipped, push the tab forward for performance. This may result in a daytime use and pull it for nighttime { Warning pulsing sound when either rear use to avoid glare from the window is down and the front headlamps from behind. Never leave a child, a helpless windows are up. To reduce the adult, or a pet alone in a vehicle, sound, open either a front window Automatic Dimming especially with the windows or the sunroof, if equipped. Rearview Mirror closed in warm or hot weather. They can be overcome by the Power Windows If equipped, automatic dimming extreme heat and suffer reduces the glare of the headlamps permanent injuries or even death from behind. This feature comes on from heat stroke. { Warning when the vehicle is started. Children could be seriously injured or killed if caught in the path of a closing window. Never leave keys in a vehicle with children. When there are children in the rear seat, use the window lockout button to prevent operation of the windows. See Keys on page 2-1. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (21,1) 7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-21
windows only have express-down. The indicator light comes on when Pull a window switch up or push it activated. down all the way, release it, and the window goes down or up Press o again to deactivate the automatically. Stop the window by lockout switch. pushing or pulling the switch. Programming the Power Rear Window Lockout Windows If the battery on the vehicle has been recharged, disconnected, or is not working, you will need to reprogram each front power window for the express-up feature to work. Press the switch to lower the Before reprogramming, replace or window. Pull the switch up to recharge the vehicle's battery. raise it. To program each front window: The switches work when the ignition is in ON/RUN or ACC/ 1. With the ignition in ON/RUN or ACCESSORY, or in Retained ACC/ACCESSORY, or in Accessory Power (RAP). See Retained Accessory Power Retained Accessory Power (RAP) (RAP), close all doors. on page 9-23. This feature prevents the rear 2. Press and hold the power Express Window Operation passenger windows from operating, window switch until the window except from the driver position. is fully open. Windows with an express-up or 3. Pull the power window switch up down feature allow the front Press o on the driver door to until the window is fully closed. windows to be lowered or raised activate the rear window lockout without holding the switch. Rear switch. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (22,1) 7707475) - 2015 - CRC - 10/9/14
2-22 Keys, Doors, and Windows
4. Continue holding the switch up Rear Window Sunshade The sunshade only operates when for approximately two seconds the ignition is in ON/RUN or ACC/ after the window is completely ACCESSORY. closed. When shifting the vehicle into The window is now reprogrammed. R (Reverse), the sunshade will Repeat the process for the other automatically retract if it is windows. extended. It will re-extend after a short delay when shifting into D Sun Visors (Drive).
If equipped, the rear window sunshade button is on the overhead console. To open the sunshade, press and release. The sunshade will fully extend. To close the Pull the sun visor down to block sunshade, press and release the glare. Detach the sun visor from the switch again. The sunshade will fully center mount to pivot to the side close. window or, if equipped, extend along the rod. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (23,1) 7707475) - 2015 - CRC - 10/9/14
Keys, Doors, and Windows 2-23
Roof Vent: Press the rear of the Anti-Pinch Feature switch (2) to the first detent to vent If an object is in the path of the the sunroof. Press the front of the sunroof while it is closing, the Sunroof switch (1) to the second detent to anti-pinch feature will detect the close the sunroof. object and stop the sunroof from Express-Open/Express-Close: To closing at the point of the express-open the sunroof, fully obstruction. The sunroof and press and release the rear of the sunshade will then return to the switch (2). To express-close, fully open or vent position. To close the press and release the front of the sunroof once the obstruction has switch (1). To stop the sunroof been removed, refer to partway, press either switch a "Express-Open/Express-Close" second time. earlier in this section. The sunshade opens automatically with the sunroof. To express-open the sunshade, fully On vehicles with a sunroof, the press and release the rear of the switch is on the overhead console. switch (3). To stop the sunshade partway, press the switch a second The ignition must be in ON/RUN or time. To express-close, fully press ACC/ACCESSORY, or Retained and release the front of the Accessory Power (RAP) must be switch (4). To stop the sunshade active. See Retained Accessory partway, press the switch a Power (RAP) on page 9-23. Dirt and debris may collect on the second time. sunroof seal or in the track. This could cause issues with sunroof operation and noise. It could also plug the water drainage system. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (24,1) 7707475) - 2015 - CRC - 10/9/14
2-24 Keys, Doors, and Windows
Periodically open the sunroof and remove any obstacles or loose debris. Wipe the sunroof seal and roof sealing area using a clean cloth, mild soap, and water. Do not remove grease from the sunroof. If water is seen dripping into the water drainage system, this is normal. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-1
Seats and Lap-Shoulder Belt ...... 3-15 Adding Equipment to the Safety Belt Use During Airbag-Equipped Vehicle . . . 3-31 Restraints Pregnancy ...... 3-18 Airbag System Check ...... 3-32 Safety Belt Extender ...... 3-19 Replacing Airbag System Safety System Check ...... 3-19 Parts after a Crash ...... 3-32 Head Restraints Safety Belt Care ...... 3-19 Head Restraints ...... 3-2 Replacing Safety Belt System Child Restraints Parts after a Crash ...... 3-20 Older Children ...... 3-33 Front Seats Infants and Young Seat Adjustment ...... 3-4 Airbag System Children ...... 3-35 Power Seat Adjustment ...... 3-5 Airbag System ...... 3-20 Child Restraint Systems . . . . . 3-38 Lumbar Adjustment ...... 3-5 Where Are the Airbags? . . . . . 3-22 Where to Put the Restraint . . . 3-39 Reclining Seatbacks ...... 3-6 When Should an Airbag Lower Anchors and Tethers Memory Seats ...... 3-7 Inflate? ...... 3-23 for Children (LATCH Heated and Ventilated Front What Makes an Airbag System) ...... 3-41 Seats ...... 3-9 Inflate? ...... 3-24 Replacing LATCH System Rear Seats How Does an Airbag Parts After a Crash ...... 3-48 Restrain? ...... 3-24 Securing Child Restraints Rear Seats ...... 3-11 What Will You See after an (Rear Seat) ...... 3-49 Rear Seat Armrest ...... 3-12 Airbag Inflates? ...... 3-25 Securing Child Restraints Safety Belts Passenger Sensing (Front Passenger Seat) . . . . 3-51 Safety Belts ...... 3-12 System ...... 3-26 How to Wear Safety Belts Servicing the Airbag-Equipped Properly ...... 3-14 Vehicle ...... 3-31 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
3-2 Seats and Restraints
Head Restraints
{ Warning
With head restraints that are not installed and adjusted properly, there is a greater chance that occupants will suffer a neck/ spinal injury in a crash. Do not drive until the head restraints for all occupants are installed and adjusted properly. Adjust the head restraint so that the To raise or lower the head restraint, If your vehicle has rear head top of the restraint is at the same press the button located on the side restraints that fold down, always height as the top of the occupant's of the head restraint, and pull up or return them to the full upright head. This position reduces the push the head restraint down and position whenever an occupant is chance of a neck injury in a crash. release the button. Pull and push on seated in the seat. the head restraint after the button is Front Seats released to make sure that it is The vehicle's front seats have locked in place. adjustable head restraints in the The fore and aft position of the head outboard seating positions. restraint can be adjusted. The height of the head restraint can be adjusted. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-3
Rear Seats head restraint after the button is released to make sure that it is The vehicle's rear seats have locked in place. adjustable head restraints in the outboard seating positions. The height of the head restraint can be adjusted. Pull the head restraint up to raise it. Try to move the head restraint to make sure that it is locked in place.
To adjust the head restraint forward or rearward, press the button located on the side facing of the head restraint and move it forward or rearward until the desired locking The head restraint can be folded position is reached. Try to move the rearward to allow for better visibility head restraint after the button is when the rear seat is unoccupied. released to make sure that it is To fold the head restraint, press the locked in place. button on the side of the head The front seat outboard head restraint. restraints are not removable. To lower the head restraint, press the button, located on the top of the seatback, and push the head restraint down. Try to move the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
3-4 Seats and Restraints
Always adjust the head restraint so Front Seats that the top of the restraint is at the same height as the top of the occupant’s head. Seat Adjustment If you are installing a child restraint Seat Position in the rear seat, see “Securing a Child Restraint Designed for the LATCH System” under Lower Anchors and Tethers for Children (LATCH System) on page 3-41.
The head restraint will fold rearward automatically. When an occupant or child restraint is in the seat, always return the head restraint to the full upright position. Lift the head restraint and pull it forward until it locks into { Warning place. Push and pull on the head restraint to make sure that it is You can lose control of the locked. vehicle if you try to adjust a driver seat while the vehicle is moving. Adjust the driver seat only when the vehicle is not moving. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (5,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-5
To adjust a manual seat: Power Seat Adjustment Some vehicles are equipped with a 1. Pull the handle at the front of feature that activates a vibration in the seat. the driver seat to help the driver avoid crashes. See Driver 2. Slide the seat to the desired Assistance Systems on page 9-47. position and release the handle. 3. Try to move the seat back and Lumbar Adjustment forth to be sure it is locked in place. Height Adjustment
To adjust the seat: . Move the seat forward or rearward by moving the control forward or rearward. . Raise or lower the front part of the seat cushion by moving the To adjust the lumbar support: front of the control up or down. . Press and hold the front or rear . Raise or lower the entire seat by of the control to increase or Press and hold the top or bottom of moving the rear of the control up decrease lumbar support. or down. the switch to raise or lower the seat. . If equipped, press and hold the Release the switch when the top or bottom of the control to desired height is reached. raise or lower lumbar support. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (6,1) 7707475) - 2015 - CRC - 10/9/14
3-6 Seats and Restraints
Reclining Seatbacks Manual Reclining Seatbacks Warning (Continued)
The shoulder belt will not be { Warning against your body. Instead, it will If either seatback is not locked, it be in front of you. In a crash, you could move forward in a sudden could go into it, receiving neck or stop or crash. That could cause other injuries. injury to the person sitting there. The lap belt could go up over Always push and pull on the your abdomen. The belt forces seatbacks to be sure they are would be there, not at your pelvic locked. bones. This could cause serious internal injuries. For proper protection when the { Warning vehicle is in motion, have the seatback upright. Then sit well Sitting in a reclined position when back in the seat and wear the the vehicle is in motion can be safety belt properly. dangerous. Even when buckled up, the safety belts cannot do their job. (Continued)
To recline a manual seatback: 1. Lift the lever. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (7,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-7
2. Move the seatback to the Power Reclining Seatbacks Memory Seats desired position, and then release the lever to lock the seatback in place. 3. Push and pull on the seatback to make sure it is locked. To return the seatback to the upright position: 1. Lift the lever fully without applying pressure to the seatback, and the seatback will return to the upright position. 2. Push and pull on the seatback to make sure it is locked. To adjust a power seatback: If memory equipped, the “1,”“2,” . Tilt the top of the control and SET buttons on the driver door rearward to recline. are used to manually save and recall the driver seat and outside . Tilt the top of the control forward mirror positions. to raise. Storing Memory Positions To save positions to the “1” and “2” buttons: 1. Adjust the driver seat, seatback recliner, and both outside mirrors to the desired driving positions. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (8,1) 7707475) - 2015 - CRC - 10/9/14
3-8 Seats and Restraints
2. Press and release SET. A beep Automatically Recalling Memory . If the driver door is already will sound. Positions (Auto Memory Recall) open, press K on the RKE transmitter to activate the recall. 3. Immediately press and hold “1” The Auto (Automatic) Memory until two beeps sound. Recall feature automatically recalls To activate the recall when On - At 4. Repeat Steps 1 and 2 for a the current driver’s previously stored Ignition On is selected in the vehicle 1 or 2 position when entering the personalization menu: second driver using “2.” “ ” “ ” vehicle. . Place the ignition in ON/RUN/ Manually Recalling Memory Depending upon the Auto Memory START. Positions Recall feature enabled in the vehicle See Vehicle Personalization on If the vehicle is OFF or not in personalization menu, memory 1 “ ” page 5-45. P (Park), press and hold "1" or "2" to or “2” positions are recalled in the manually recall the previously following ways: To stop recall movement, press one of the memory, power mirror, stored memory positions. Releasing To activate the recall when On - or power seat controls. If On - At "1” or "2" before the stored positions Driver Door Open is selected in the Ignition On is selected in the vehicle are reached stops the recall. personalization menu, do one of the personalization menu, placing the If the vehicle is ON and in P (Park), following: ignition in OFF also stops the recall. press and release “1” or “2” to . K manually recall the previously On vehicles with RKE, press Easy Exit Driver Seat stored memory positions. Placing on the RKE transmitter and open This feature moves the seat the ignition in OFF before the stored the driver door. rearward allowing the driver more positions are reached stops the . On vehicles with Keyless room to exit the vehicle. recall. Access, press the lock/unlock button on the outside driver door To activate, place the ignition in handle and open the door. The OFF and open the driver door. If the RKE transmitter must be present driver door is already open, placing for the recall to activate. the ignition in OFF will activate the recall. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (9,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-9
This feature is turned on or off using . If automatically recalling the Heated and Ventilated the vehicle personalization menu. position, press and hold the See Vehicle Personalization on appropriate manual control for Front Seats page 5-45. the memory item that is not recalling for two seconds. Try { Warning To stop recall movement, press one recalling again by opening the of the memory or power seat K If you cannot feel temperature controls. driver door and pressing on the RKE transmitter. change or pain to the skin, the seat heater may cause burns. To Obstructions . If recalling the exit postion, reduce the risk of burns, people If something has blocked the driver press and hold the power seat with such a condition should use seat while recalling a memory control rearward for care when using the seat heater, position, the recall may stop. two seconds. Try recalling the especially for long periods of Remove the obstruction. Then do exit position again. one of the following: time. Do not place anything on If the memory position is still not the seat that insulates against . If manually recalling the position, recalling, see your dealer for heat, such as a blanket, cushion, press and hold the appropriate service. cover, or similar item. This may manual control for the memory cause the seat heater to item that is not recalling for overheat. An overheated seat two seconds. Try recalling again heater may cause a burn or may by pressing the appropriate memory button. damage the seat. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (10,1) 7707475) - 2015 - CRC - 10/9/14
3-10 Seats and Restraints
Press C or {, if equipped, to ventilated seats turn on. The heated ventilate the driver or passenger or ventilated seats are canceled seat. A ventilated seat has a fan when the ignition is turned on. Press that pulls or pushes air through the the button to use the heated or seat. The air is not cooled. ventilated seats after the vehicle is started. Press the button once for the highest setting. With each press of The heated or ventilated seat the button, the seat will change to indicator lights on the button do not the next lower setting, and then to turn on during a remote start. the off setting. The lights near the The heated seat temperature heated or ventilated seat symbol on performance of an unoccupied seat the display indicate three for the may be reduced. This is normal. Heated and Ventilated Seat highest setting and one for the Buttons Shown, Heated Seat lowest. The heated or ventilated seats will Buttons Similar not turn on during a remote start If the heated seats are on high, the unless they are enabled in the If equipped, the buttons are part of level may automatically lower after vehicle personalization menu. See the climate control system on the approximately 30 minutes. Remote Vehicle Start on page 2-9 center stack. To operate, the ignition The passenger seat may take and Vehicle Personalization on and the climate control system must page 5-45. be on. If the climate control system longer to heat up. is off, press the O button to turn Remote Start Auto Heated and it on. Ventilated Seats Press M or L to heat the driver or During a remote start, the heated or passenger seat cushion and ventilated seats, if equipped, can be seatback. turned on automatically. When it is cold outside, the heated seats turn on, and when it is hot outside the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (11,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-11
Rear Seats To fold the seatback down: Raising the Seatback Folding the Seatback { Warning Either side of the seatback can be folded down for more cargo space. If either seatback is not locked, it Fold a seatback only when the could move forward in a sudden vehicle is not moving. stop or crash. That could cause injury to the person sitting there. { Caution Always push and pull on the seatbacks to be sure they are Folding a rear seat with the safety locked. belts still fastened may cause damage to the seat or the safety belts. Always unbuckle the safety { Warning belts and return them to their 1. Pull on the lever on the top of the seatback to unlock it. normal stowed position before A safety belt that is improperly folding a rear seat. A tab near the seatback lever routed, not properly attached, raises when the seatback is or twisted will not provide the unlocked. protection needed in a crash. The 2. Fold the seatback down. person wearing the belt could be seriously injured. After raising the Repeat the steps to fold the rear seatback, always check to be other seatback, if desired. sure that the safety belts are properly routed and attached, and are not twisted. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (12,1) 7707475) - 2015 - CRC - 10/9/14
3-12 Seats and Restraints
To raise a seatback: Rear Seat Armrest Safety Belts 1. Lift the seatback up and push it This section of the manual rearward to lock it in place. describes how to use safety belts Make sure the safety belt is not properly. It also describes some twisted or caught in the things not to do with safety belts. seatback. A tab near the seatback lever { Warning retracts when the seatback is locked in place. Do not let anyone ride where a 2. Push and pull the top of the safety belt cannot be worn seatback to be sure it is locked properly. In a crash, if you or your into position. passenger(s) are not wearing safety belts, injuries can be much 3. Repeat the steps to raise the other seatback, if necessary. worse than if you are wearing The rear seat has an armrest in the safety belts. You can be seriously center of the seatback. Lower the When the seat is not in use, it injured or killed by hitting things armrest to access the two should be kept in the upright, locked inside the vehicle harder or by cupholders and the storage area. position. being ejected from the vehicle. In To fold, lift the armrest up and push addition, anyone who is not it rearward until it is flush with the buckled up can strike other seatback. passengers in the vehicle. It is extremely dangerous to ride in a cargo area, inside or outside of a vehicle. In a collision, passengers riding in these areas (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (13,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-13
Why Safety Belts Work safety belts. That is why wearing Warning (Continued) safety belts makes such good sense. are more likely to be seriously injured or killed. Do not allow Questions and Answers About passengers to ride in any area of Safety Belts the vehicle that is not equipped Q: Will I be trapped in the vehicle with seats and safety belts. after a crash if I am wearing a Always wear a safety belt, and safety belt? check that all passenger(s) are A: You could be — whether you are restrained properly too. wearing a safety belt or not. Your chance of being conscious This vehicle has indicators as a during and after a crash, so you reminder to buckle the safety belts. can unbuckle and get out, is See Safety Belt Reminders on When riding in a vehicle, you travel much greater if you are belted. page 5-14. as fast as the vehicle does. If the Q: If my vehicle has airbags, why vehicle stops suddenly, you keep should I have to wear safety going until something stops you. belts? It could be the windshield, the instrument panel, or the safety belts! A: Airbags are supplemental systems only; so they work with When you wear a safety belt, you safety belts — not instead of and the vehicle slow down together. them. Whether or not an airbag There is more time to stop because is provided, all occupants still you stop over a longer distance and, have to buckle up to get the when worn properly, your strongest most protection. bones take the forces from the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (14,1) 7707475) - 2015 - CRC - 10/9/14
3-14 Seats and Restraints
Also, in nearly all states and in . Wear the shoulder belt over the all Canadian provinces, the law shoulder and across the chest. requires wearing safety belts. These parts of the body are best able to take belt restraining How to Wear Safety Belts forces. The shoulder belt locks if there is a sudden stop or crash. Properly This section is only for people of { Warning adult size. You can be seriously injured, There are special things to know or even killed, by not wearing about safety belts and children. And there are different rules for smaller your safety belt properly. children and infants. If a child will be . Sit up straight and always keep . Never allow the lap or riding in the vehicle, see Older your feet on the floor in front shoulder belt to become Children on page 3-33 or Infants of you. loose or twisted. and Young Children on page 3-35. . Always use the correct buckle . Never wear the shoulder belt Follow those rules for everyone's for your seating position. under both arms or behind protection. . Wear the lap part of the belt low your back. It is very important for all occupants and snug on the hips, just . Never route the lap or to buckle up. Statistics show that touching the thighs. In a crash, shoulder belt over an unbelted people are hurt more often this applies force to the strong armrest. in crashes than those who are pelvic bones and you would be wearing safety belts. less likely to slide under the lap There are important things to know belt. If you slid under it, the belt about wearing a safety belt properly. would apply force on your abdomen. This could cause serious or even fatal injuries. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (15,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-15
Lap-Shoulder Belt 2. Pick up the latch plate and pull the belt across you. Do not let it All seating positions in the vehicle get twisted. have a lap-shoulder belt. The lap-shoulder belt may lock if The following instructions explain you pull the belt across you very how to wear a lap-shoulder belt quickly. If this happens, let the properly. belt go back slightly to unlock it. 1. Adjust the seat, if the seat is Then pull the belt across you adjustable, so you can sit up more slowly. straight. To see how, see “Seats” If the shoulder portion of a in the Index. passenger belt is pulled out all the way, the child restraint locking feature may be engaged. 3. Push the latch plate into the If this happens, let the belt go buckle until it clicks. back all the way and start again. Pull up on the latch plate to make sure it is secure. If the belt is not long enough, see Safety Belt Extender on page 3-19. Position the release button on the buckle so that the safety belt could be quickly unbuckled if necessary. If equipped with a shoulder belt height adjuster, move it to the height that is right for you. See “Shoulder Belt Height Adjuster” Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (16,1) 7707475) - 2015 - CRC - 10/9/14
3-16 Seats and Restraints
later in this section for Shoulder Belt Height Adjuster instructions on use and The vehicle has a shoulder belt important safety information. height adjuster for the driver and 4. To make the lap part tight, pull right front passenger seating up on the shoulder belt. positions. Adjust the height so the shoulder portion of the belt is on the shoulder and not falling off of it. The belt should be close to, but not contacting, the neck. Improper shoulder belt height adjustment could reduce the effectiveness of the safety belt in a crash. See How Press the release button and move to Wear Safety Belts Properly on the height adjuster to the desired page 3-14. position. The adjuster can be moved up by pushing the slide/trim up. After the adjuster is set to the desired position, try to move it down without pushing the release button To unlatch the belt, push the button to make sure it has locked into on the buckle. The belt should return to its stowed position. position. Before a door is closed, be sure the Safety Belt Pretensioners safety belt is out of the way. If a This vehicle has safety belt door is slammed against a safety pretensioners for front outboard belt, damage can occur to both the occupants. Although the safety belt safety belt and the vehicle. pretensioners cannot be seen, they are part of the safety belt assembly. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (17,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-17
They can help tighten the safety shoulder belt, the comfort guide belts during the early stages of a positions the shoulder belt away moderate to severe frontal, near from the neck and head. frontal, or rear crash if the threshold To install: conditions for pretensioner activation are met. Safety belt pretensioners can also help tighten the safety belts in a side crash or a rollover event. Pretensioners work only once. If the pretensioners activate in a crash, the pretensioners and probably other parts of the vehicle's safety 2. Place the guide over the belt, belt system will need to be replaced. and insert the two edges of the See Replacing Safety Belt System belt into the slots of the guide. Parts after a Crash on page 3-20. Rear Safety Belt Comfort Guides 1. Remove the guide from its storage pocket on the side of This vehicle may have rear safety the seat. belt comfort guides. If not, they are available through your dealer. Rear safety belt comfort guides may provide added safety belt comfort for older children who have outgrown booster seats and for some adults. When installed on a Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (18,1) 7707475) - 2015 - CRC - 10/9/14
3-18 Seats and Restraints
To remove and store the comfort Warning (Continued) guide, squeeze the belt edges together so that the safety belt can and across the chest. These parts be removed from the guide. Store of the body are best able to take the guide in its storage pocket on belt restraining forces. the side of the seatback. Safety Belt Use During Pregnancy Safety belts work for everyone, including pregnant women. Like all occupants, they are more likely to 3. Be sure that the belt is not be seriously injured if they do not twisted and it lies flat. The wear safety belts. elastic cord must be behind the belt with the plastic guide on the front.
{ Warning
A safety belt that is not properly 4. Buckle, position, and release the worn may not provide the safety belt as described protection needed in a crash. The previously in this section. Make person wearing the belt could be sure the shoulder portion of the belt is on the shoulder and not seriously injured. The shoulder falling off of it. The belt should belt should go over the shoulder be close to, but not contacting, (Continued) the neck. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (19,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-19
A pregnant woman should wear a personal injury, do not let someone Make sure the safety belt reminder lap-shoulder belt, and the lap else use it, and use it only for the light is working. See Safety Belt portion should be worn as low as seat it is made to fit. The extender Reminders on page 5-14. possible, below the rounding, has been designed for adults. Never Keep safety belts clean and dry. throughout the pregnancy. use it for securing child seats. To See Safety Belt Care on page 3-19. The best way to protect the fetus is wear it, attach it to the regular safety to protect the mother. When a safety belt. See the instruction sheet that Safety Belt Care belt is worn properly, it is more likely comes with the extender. that the fetus will not be hurt in a Keep belts clean and dry. crash. For pregnant women, as for Safety System Check anyone, the key to making safety Now and then, check that the safety { Warning belts effective is wearing them belt reminder light, safety belts, Do not bleach or dye safety belts. properly. buckles, latch plates, retractors, and anchorages are all working properly. It may severely weaken them. In Safety Belt Extender Look for any other loose or a crash, they might not be able to damaged safety belt system parts provide adequate protection. If the vehicle's safety belt will fasten Clean safety belts only with mild around you, you should use it. that might keep a safety belt system from doing its job. See your dealer soap and lukewarm water. But if a safety belt is not long to have it repaired. Torn or frayed enough, your dealer will order you safety belts may not protect you in a an extender. When you go in to crash. They can rip apart under order it, take the heaviest coat you impact forces. If a belt is torn or will wear, so the extender will be frayed, get a new one right away. long enough for you. To help avoid Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (20,1) 7707475) - 2015 - CRC - 10/9/14
3-20 Seats and Restraints
Replacing Safety Belt After a minor crash, replacement of Airbag System safety belts may not be necessary. System Parts after a But the safety belt assemblies that The vehicle has the following Crash were used during any crash may airbags: have been stressed or damaged. . A frontal airbag for the driver. { Warning See your dealer to have the safety belt assemblies inspected or . A frontal airbag for the front A crash can damage the safety replaced. outboard passenger. belt system in the vehicle. New parts and repairs may be . A seat-mounted side impact A damaged safety belt system necessary even if the safety belt airbag for the driver. may not properly protect the system was not being used at the . A seat-mounted side impact person using it, resulting in time of the crash. airbag for the front outboard serious injury or even death in a Have the safety belt pretensioners passenger. crash. To help make sure the checked if the vehicle has been in a . safety belt systems are working A roof-rail airbag for the driver crash, or if the airbag readiness light properly after a crash, have them and the passenger seated stays on after you start the vehicle directly behind the driver. inspected and any necessary or while you are driving. See Airbag replacements made as soon as Readiness Light on page 5-14. . A roof-rail airbag for the front possible. outboard passenger and the passenger seated directly behind the front outboard passenger. . Seat-mounted side impact airbags for the second row outboard passengers. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (21,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-21
All of the airbags have the word Here are the most important things AIRBAG embossed on the trim or to know about the airbag system: { Warning on a label near the deployment opening. Because airbags inflate with great { Warning force and faster than the blink of For frontal airbags, the word You can be severely injured or an eye, anyone who is up AIRBAG is on the center of the against, or very close to any steering wheel for the driver and on killed in a crash if you are not wearing your safety belt, even airbag when it inflates can be the instrument panel for the front seriously injured or killed. Do not outboard passenger. with airbags. Airbags are designed to work with safety sit unnecessarily close to any For seat-mounted side impact belts, not replace them. Also, airbag, as you would be if sitting airbags, the word AIRBAG is on the airbags are not designed to inflate on the edge of the seat or leaning side of the seatback closest to forward. Safety belts help keep the door. in every crash. In some crashes safety belts are the only restraint. you in position before and during For roof-rail airbags, the word See When Should an Airbag a crash. Always wear a safety AIRBAG is on the ceiling or trim. Inflate? on page 3-23. belt, even with airbags. The driver should sit as far back as possible Airbags are designed to supplement Wearing your safety belt during a while still maintaining control of the protection provided by safety crash helps reduce the chance of belts. Even though today's airbags the vehicle. hitting things inside the vehicle or are also designed to help reduce being ejected from it. Airbags are Occupants should not lean on or the risk of injury from the force of an sleep against the door or side “supplemental restraints” to the inflating bag, all airbags must inflate windows in seating positions with very quickly to do their job. safety belts. Everyone in the vehicle should wear a safety belt seat-mounted side impact airbags properly, whether or not there is and/or roof-rail airbags. an airbag for that person. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (22,1) 7707475) - 2015 - CRC - 10/9/14
3-22 Seats and Restraints
Where Are the Airbags? { Warning
Children who are up against, or very close to, any airbag when it inflates can be seriously injured or killed. Always secure children properly in the vehicle. To read how, see Older Children on page 3-33 or Infants and Young Children on page 3-35.
Driver Side Shown, Passenger Side Similar The driver frontal airbag is in the The driver and front outboard center of the steering wheel. passenger seat-mounted side impact airbags are in the side of the The front outboard passenger seatbacks closest to the door. frontal airbag is in the passenger There is an airbag readiness light side instrument panel. The roof-rail airbags for the driver, on the instrument cluster, which front outboard passenger, and shows the airbag symbol. The second row outboard passengers system checks the airbag electrical are in the ceiling above the side system for malfunctions. The light windows. tells you if there is an electrical problem. See Airbag Readiness Light on page 5-14. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (23,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-23
When Should an Airbag Warning (Continued) Inflate? or even death. The path of an This vehicle is equipped with inflating airbag must be kept airbags. See Airbag System on clear. Do not put anything page 3-20. Airbags are designed to between an occupant and an inflate if the impact exceeds the airbag, and do not attach or put specific airbag system's deployment anything on the steering wheel threshold. Deployment thresholds hub or on or near any other are used to predict how severe a airbag covering. crash is likely to be in time for the Do not use seat accessories that airbags to inflate and help restrain Rear Seat Driver Side Shown, block the inflation path of a the occupants. The vehicle has electronic sensors that help the Passenger Side Similar seat-mounted side impact airbag. airbag system determine the On vehicles with second row Never secure anything to the roof severity of the impact. Deployment seat-mounted side impact airbags, of a vehicle with roof-rail airbags thresholds can vary with specific they are in the sides of the rear by routing a rope or tie‐down vehicle design. seatback closest to the door. through any door or window Frontal airbags are designed to opening. If you do, the path of an inflate in moderate to severe frontal { Warning inflating roof-rail airbag will be or near frontal crashes to help blocked. reduce the potential for severe If something is between an injuries, mainly to the driver's or occupant and an airbag, the front outboard passenger's head airbag might not inflate properly and chest. or it might force the object into that person causing severe injury Whether the frontal airbags will or should inflate is not based primarily (Continued) on how fast the vehicle is traveling. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (24,1) 7707475) - 2015 - CRC - 10/9/14
3-24 Seats and Restraints
It depends on what is hit, the A seat-mounted side impact airbag inflator. Gas from the inflator fills the direction of the impact, and how is designed to inflate on the side of airbag causing the bag to break out quickly the vehicle slows down. the vehicle that is struck. of the cover. The inflator, the airbag, Frontal airbags may inflate at Roof-rail airbags are designed to and related hardware are all part of different crash speeds depending on inflate in moderate to severe side the airbag module. whether the vehicle hits an object crashes depending on the location For airbag locations, see Where Are straight on or at an angle, and of the impact. In addition, these the Airbags? on page 3-22. whether the object is fixed or roof-rail airbags are designed to moving, rigid or deformable, narrow inflate during a rollover or in a How Does an Airbag or wide. severe frontal impact. Roof-rail Restrain? Frontal airbags are not intended to airbags are not designed to inflate in In moderate to severe frontal or inflate during vehicle rollovers, rear rear impacts. Both roof-rail airbags near frontal collisions, even belted impacts, or in many side impacts. will inflate when either side of the vehicle is struck, if the sensing occupants can contact the steering In addition, the vehicle has system predicts that the vehicle is wheel or the instrument panel. In advanced technology frontal about to roll over on its side, or in a moderate to severe side collisions, airbags. Advanced technology severe frontal impact. even belted occupants can contact frontal airbags adjust the restraint the inside of the vehicle. according to crash severity. In any particular crash, no one can say whether an airbag should have Airbags supplement the protection Seat-mounted side impact airbags inflated simply because of the provided by safety belts by are designed to inflate in moderate vehicle damage or repair costs. distributing the force of the impact to severe side crashes depending more evenly over the on the location of the impact. What Makes an Airbag occupant's body. Seat-mounted side impact airbags Rollover capable roof-rail airbags are not designed to inflate in frontal Inflate? are designed to help contain the impacts, near frontal impacts, In a deployment event, the sensing head and chest of occupants in the rollovers, or rear impacts. system sends an electrical signal outboard seating positions in the triggering a release of gas from the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (25,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-25
first and second rows. The rollover several minutes. For location of the capable roof-rail airbags are airbags, see Where Are the Warning (Continued) designed to help reduce the risk of Airbags? on page 3-22. full or partial ejection in rollover airbag inflates, then get fresh air The parts of the airbag that come by opening a window or a door. events, although no system can into contact with you may be warm, prevent all such ejections. If you experience breathing but not too hot to touch. There may problems following an airbag But airbags would not help in many be some smoke and dust coming deployment, you should seek types of collisions, primarily from the vents in the deflated medical attention. because the occupant's motion is airbags. Airbag inflation does not not toward those airbags. See When prevent the driver from seeing out of Should an Airbag Inflate? on the windshield or being able to steer The vehicle has a feature that may page 3-23. the vehicle, nor does it prevent automatically unlock the doors, turn on the interior lamps and hazard Airbags should never be regarded people from leaving the vehicle. warning flashers, and shut off the as anything more than a supplement fuel system after the airbags inflate. to safety belts. { Warning The feature may also activate, What Will You See after When an airbag inflates, there without airbag inflation, after an may be dust in the air. This dust event that exceeds a predetermined an Airbag Inflates? could cause breathing problems threshold. You can lock the doors, and turn off the interior lamps and After the frontal airbags and for people with a history of hazard warning flashers by using seat-mounted side impact airbags asthma or other breathing trouble. the controls for those features. inflate, they quickly deflate, so To avoid this, everyone in the quickly that some people may not vehicle should get out as soon as even realize an airbag inflated. it is safe to do so. If you have Roof-rail airbags may still be at least breathing problems but cannot partially inflated for some time after get out of the vehicle after an they inflate. Some components of (Continued) the airbag module may be hot for Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (26,1) 7707475) - 2015 - CRC - 10/9/14
3-26 Seats and Restraints
battery or the electrical system. The other parts. The service manual { Warning vehicle may start but it shuts down for the vehicle covers the need once the 12-volt battery is depleted. to replace other parts. A crash severe enough to inflate When the 12-volt battery is the airbags may have also . The vehicle has a crash sensing depleted, the vehicle will not start and diagnostic module which damaged important functions in and the on-board jump start feature the vehicle, such as the fuel records information after a is disabled. The airbag readiness crash. See Vehicle Data system, brake and steering light and/or the 12-volt battery systems, etc. Even if the vehicle Recording and Privacy on warning light are displayed. Before page 13-14 and Event Data appears to be drivable after a the vehicle can be operated again, it Recorders on page 13-14. moderate crash, there may be must be serviced at your dealer. concealed damage that could . Let only qualified technicians In many crashes severe enough to work on the airbag systems. make it difficult to safely operate inflate the airbag, windshields are the vehicle. Improper service can mean that broken by vehicle deformation. an airbag system will not work Use caution if you should attempt Additional windshield breakage may properly. See your dealer for to restart the engine after a crash also occur from the front outboard service. has occurred. passenger airbag. . Airbags are designed to inflate Passenger Sensing Vehicles with eAssist have a high only once. After an airbag System voltage battery and a standard inflates, you will need some new 12-volt battery. If an airbag inflates parts for the airbag system. The vehicle has a passenger or the vehicle has been in a crash, If you do not get them, the sensing system for the front the vehicle's sensing system may airbag system will not be there outboard passenger position. The shut down the high voltage system. to help protect you in another passenger airbag status indicator When this occurs, the high voltage crash. A new system will include will light on the overhead console battery is disconnected and the airbag modules and possibly when the vehicle is started. vehicle is not charging the 12-volt Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (27,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-27
certain conditions. No other airbag is affected by the passenger { Warning sensing system. A child in a rear-facing child The passenger sensing system restraint can be seriously injured works with sensors that are part of or killed if the passenger frontal the front outboard passenger seat. airbag inflates. This is because United States The sensors are designed to detect the back of the rear-facing child the presence of a properly-seated restraint would be very close to occupant and determine if the front the inflating airbag. A child in a outboard passenger frontal airbag forward-facing child restraint can should be allowed to inflate or not. be seriously injured or killed if the According to accident statistics, passenger frontal airbag inflates children are safer when properly and the passenger seat is in a Canada and Mexico secured in a rear seat in the correct forward position. child restraint for their weight The words ON and OFF, or the and size. Even if the passenger sensing symbol for on and off, will be visible system has turned off the during the system check. When the Whenever possible, children aged passenger frontal airbag, no 12 and under should be secured in system check is complete, either the system is fail-safe. No one can a rear seating position. word ON or OFF, or the symbol for guarantee that an airbag will not on or off, will be visible. See Never put a rear-facing child seat in inflate under some unusual Passenger Airbag Status Indicator the front. This is because the risk to circumstance, even though the on page 5-15. the rear-facing child is so great, airbag is off. if the airbag inflates. The passenger sensing system (Continued) turns off the front outboard passenger frontal airbag under Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (28,1) 7707475) - 2015 - CRC - 10/9/14
3-28 Seats and Restraints
. There is a critical problem with person's seating posture and Warning (Continued) the airbag system or the body build. Everyone in the passenger sensing system. vehicle who has outgrown child Secure rear-facing child restraints When the passenger sensing restraints should wear a safety belt in a rear seat, even if the airbag system has turned off the front properly — whether or not there is is off. If you secure a outboard passenger frontal airbag, an airbag for that person. forward-facing child restraint in the off indicator will light and stay lit the front outboard passenger as a reminder that the airbag is off. { Warning seat, always move the seat as far See Passenger Airbag Status back as it will go. It is better to Indicator on page 5-15. If the airbag readiness light ever secure the child restraint in a comes on and stays on, it means rear seat. The passenger sensing system is designed to turn on the front that something may be wrong outboard passenger frontal airbag with the airbag system. To help The passenger sensing system is anytime the system senses that a avoid injury to yourself or others, designed to turn off the front person of adult size is sitting have the vehicle serviced right outboard passenger frontal airbag if: properly in the front outboard away. See Airbag Readiness Light on page 5-14 for more . The front outboard passenger passenger seat. When the seat is unoccupied. passenger sensing system has information, including important allowed the airbag to be enabled, safety information. . The system determines that an the on indicator will light and stay lit infant is present in a child as a reminder that the airbag is restraint. active. . A front outboard passenger For some children, including takes his/her weight off of the children in child restraints and for seat for a period of time. very small adults, the passenger sensing system may or may not turn off the front outboard passenger frontal airbag, depending upon the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (29,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-29
If the On Indicator Is Lit for a 5. If, after reinstalling the child If the Off Indicator Is Lit for an Child Restraint restraint and restarting the Adult-Sized Occupant vehicle, the on indicator is still lit, The passenger sensing system is turn the vehicle off. Then slightly designed to turn off the front recline the vehicle seatback and outboard passenger frontal airbag if adjust the seat cushion, the system determines that an infant if adjustable, to make sure that is present in a child restraint. If a the vehicle seatback is not child restraint has been installed pushing the child restraint into and the on indicator is lit: the seat cushion. 1. Turn the vehicle off. Also make sure the child 2. Remove the child restraint from restraint is not trapped under the the vehicle. vehicle head restraint. If this happens, adjust the head 3. Remove any additional items restraint. See Head Restraints from the seat such as blankets, on page 3-2. cushions, seat covers, seat If a person of adult-size is sitting in heaters, or seat massagers. 6. Restart the vehicle. the front outboard passenger seat, but the off indicator is lit, it could be 4. Reinstall the child restraint The passenger sensing system may because that person is not sitting following the directions provided or may not turn off the airbag for a properly in the seat. Use the by the child restraint child in a child restraint depending following steps to allow the system manufacturer and refer to upon the child's size. It is better to to detect that person and enable the Securing Child Restraints (Rear secure the child restraint in a front outboard passenger frontal Seat) on page 3-49 or Securing rear seat. airbag: Child Restraints (Front Passenger Seat) on page 3-51. 1. Turn the vehicle off. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (30,1) 7707475) - 2015 - CRC - 10/9/14
3-30 Seats and Restraints
2. Remove any additional material operates. We recommend that you from the seat, such as blankets, Warning (Continued) not use seat covers or other cushions, seat covers, seat aftermarket equipment except when heaters, seat massagers, a serious injury or even death. An approved by GM for your specific laptop, or other electronic adult-sized occupant should not vehicle. See Adding Equipment to devices. ride in the front outboard the Airbag-Equipped Vehicle on passenger seat, if the passenger page 3-31 for more information 3. Place the seatback in the fully airbag off indicator is lit. upright position. about modifications that can affect how the system operates. 4. Have the person sit upright in Additional Factors Affecting the seat, centered on the seat A wet seat can affect the cushion, with legs comfortably System Operation performance of the passenger sensing system. Here is how: extended. Safety belts help keep the . 5. Restart the vehicle and have the passenger in position on the seat The passenger sensing system person remain in this position for during vehicle maneuvers and may turn off the passenger two to three minutes after the on braking, which helps the passenger frontal airbag when liquid is indicator is lit. sensing system maintain the soaked into the seat. If this passenger airbag status. See happens, the off indicator will be “Safety Belts” and “Child Restraints” lit, and the airbag readiness light { Warning in the Index for additional on the instrument cluster will also be lit. If the front outboard passenger information about the importance of proper restraint use. airbag is turned off for an . Liquid pooled on the seat that adult-sized occupant, the airbag A thick layer of additional material, has not soaked in may make it will not be able to inflate and help such as a blanket or cushion, more likely that the passenger protect that person in a crash, or aftermarket equipment such as sensing system will turn on the resulting in an increased risk of seat covers, seat heaters, and seat passenger frontal airbag while a massagers can affect how well the child restraint or child occupant (Continued) passenger sensing system Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (31,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-31
is on the seat. If the passenger Servicing the frontal airbag is turned on, the Warning (Continued) on indicator will be lit. Airbag-Equipped Vehicle proper service procedures, and If the passenger seat gets wet, dry Airbags affect how the vehicle should be serviced. There are parts make sure the person performing the seat immediately. If the airbag work for you is qualified to do so. readiness light is lit, do not install a of the airbag system in several child restraint or allow anyone to places around the vehicle. Your occupy the seat. See Airbag dealer and the service manual have Adding Equipment to the information about servicing the Readiness Light on page 5-14 for Airbag-Equipped Vehicle important safety information. vehicle and the airbag system. To purchase a service manual, see Adding accessories that change the The on indicator may be lit if an Service Publications Ordering vehicle's frame, bumper system, object, such as a briefcase, Information on page 13-11. height, front end, or side sheet handbag, grocery bag, laptop or metal, may keep the airbag system other electronic device, is put on an { Warning from working properly. The unoccupied seat. If this is not operation of the airbag system can desired remove the object from For up to 10 seconds after the also be affected by changing any the seat. vehicle is turned off and the parts of the front seats, safety belts, battery is disconnected, an airbag the airbag sensing and diagnostic { Warning can still inflate during improper module, steering wheel, instrument service. You can be injured if you panel, any of the airbag modules, Stowing of articles under the are close to an airbag when it ceiling or pillar garnish trim, front passenger seat or between the inflates. Avoid yellow connectors. sensors, side impact sensors, passenger seat cushion and They are probably part of the or airbag wiring. seatback may interfere with the airbag system. Be sure to follow proper operation of the passenger sensing system. (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (32,1) 7707475) - 2015 - CRC - 10/9/14
3-32 Seats and Restraints
Your dealer and the service manual turning off the passenger airbag(s). have information about the location See Passenger Sensing System on { Caution of the airbag sensors, sensing and page 3-26. If an airbag covering is damaged, diagnostic module, and airbag If the vehicle has rollover roof-rail wiring. opened, or broken, the airbag airbags, see Different Size Tires may not work properly. Do not In addition, the vehicle has a and Wheels on page 10-60 for open or break the airbag passenger sensing system for the additional important information. coverings. If there are any front outboard passenger position, If you have to modify your vehicle opened or broken airbag which includes sensors that are part because you have a disability and coverings, have the airbag of the passenger seat. The you have questions about whether covering and/or airbag module passenger sensing system may not the modifications will affect the operate properly if the original seat replaced. For the location of the vehicle's airbag system, or if you airbags, see Where Are the trim is replaced with non-GM have questions about whether the covers, upholstery, or trim; or with Airbags? on page 3-22. See your airbag system will be affected if the dealer for service. GM covers, upholstery, or trim vehicle is modified for any other designed for a different vehicle. Any reason, call Customer Assistance. object, such as an aftermarket seat See Customer Assistance Offices Replacing Airbag System heater or a comfort-enhancing pad on page 13-3. or device, installed under or on top Parts after a Crash of the seat fabric, could also Airbag System Check interfere with the operation of the { Warning passenger sensing system. This The airbag system does not need could either prevent proper regularly scheduled maintenance or A crash can damage the airbag deployment of the passenger replacement. Make sure the airbag systems in the vehicle. airbag(s) or prevent the passenger readiness light is working. See A damaged airbag system may sensing system from properly Airbag Readiness Light on not work properly and may not page 5-14. (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (33,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-33
Child Restraints The manufacturer instructions that Warning (Continued) come with the booster seat state the weight and height limitations for that protect you and your Older Children booster. Use a booster seat with a passenger(s) in a crash, resulting lap-shoulder belt until the child in serious injury or even death. To passes the fit test below: help make sure the airbag systems are working properly . Sit all the way back on the seat. after a crash, have them Do the knees bend at the seat edge? If yes, continue. If no, inspected and any necessary return to the booster seat. replacements made as soon as possible. . Buckle the lap-shoulder belt. Does the shoulder belt rest on the shoulder? If yes, continue. If an airbag inflates, you will need to If no, try using the rear safety replace airbag system parts. See belt comfort guide, if available. your dealer for service. See “Rear Safety Belt Comfort Guides under Lap-Shoulder Belt If the airbag readiness light stays on Older children who have outgrown ” on page 3-15. If a comfort guide after the vehicle is started or comes booster seats should wear the is not available, or if the on when you are driving, the airbag vehicle safety belts. system may not work properly. Have shoulder belt still does not rest the vehicle serviced right away. See on the shoulder, then return to Airbag Readiness Light on the booster seat. page 5-14. . Does the lap belt fit low and snug on the hips, touching the thighs? If yes, continue. If no, return to the booster seat. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (34,1) 7707475) - 2015 - CRC - 10/9/14
3-34 Seats and Restraints
. Can proper safety belt fit be In a crash, children who are not maintained for the length of the buckled up can strike other people trip? If yes, continue. If no, who are buckled up, or can be return to the booster seat. thrown out of the vehicle. Older Q: What is the proper way to children need to use safety belts wear safety belts? properly. A: An older child should wear a lap-shoulder belt and get the { Warning additional restraint a shoulder Never allow more than one child belt can provide. The shoulder to wear the same safety belt. The belt should not cross the face or neck. The lap belt should fit safety belt cannot properly spread snugly below the hips, just the impact forces. In a crash, they touching the top of the thighs. can be crushed together and { Warning This applies belt force to the seriously injured. A safety belt must be used by only one person Never allow a child to wear the child's pelvic bones in a crash. safety belt with the shoulder belt It should never be worn over the at a time. behind their back. A child can be abdomen, which could cause seriously injured by not wearing severe or even fatal internal injuries in a crash. the lap-shoulder belt properly. In a crash, the child would not be Also see “Rear Safety Belt Comfort restrained by the shoulder belt. Guides” under Lap-Shoulder Belt on The child could move too far page 3-15. forward increasing the chance of According to accident statistics, head and neck injury. The child children are safer when properly might also slide under the lap restrained in a rear seating position. (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (35,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-35
Infants and Young Warning (Continued) Warning (Continued) Children belt. The belt force would then be Everyone in a vehicle needs the way back into the retractor, applied right on the abdomen. protection! This includes infants and but it cannot do this if it is That could cause serious or fatal all other children. Neither the wrapped around a child’s neck. injuries. The shoulder belt should distance traveled nor the age and If the shoulder belt is locked and go over the shoulder and across size of the traveler changes the tightened around a child’s neck, the chest. need, for everyone, to use safety the only way to loosen the belt is restraints. In fact, the law in every to cut it. state in the United States and in Never leave children unattended every Canadian province says in a vehicle and never allow children up to some age must be children to play with the safety restrained while in a vehicle. belts. { Warning Every time infants and young Children can be seriously injured children ride in vehicles, they should or strangled if a shoulder belt is have the protection provided by wrapped around their neck. The appropriate child restraints. Neither shoulder belt can tighten but the vehicle's safety belt system nor cannot be loosened if it is locked. its airbag system is designed The shoulder belt locks when it is for them. pulled all the way out of the Children who are not restrained retractor. It unlocks when the properly can strike other people, shoulder belt is allowed to go all or can be thrown out of the vehicle. (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (36,1) 7707475) - 2015 - CRC - 10/9/14
3-36 Seats and Restraints
{ Warning Warning (Continued)
Never hold an infant or a child the front outboard seat, always while riding in a vehicle. Due to move the front passenger seat as crash forces, an infant or a child far back as it will go. will become so heavy it is not possible to hold it during a crash. For example, in a crash at only 40 km/h (25 mph), a 5.5 kg (12 lb) infant will suddenly become a 110 kg (240 lb) force on a person's arms. An infant should be secured in an appropriate { Warning restraint. Children who are up against, or very close to, any airbag when it inflates can be seriously injured or killed. Never put a rear-facing child restraint in the front outboard seat. Secure a Q: What are the different types of rear-facing child restraint in a rear add-on child restraints? seat. It is also better to secure a A: Add-on child restraints, which forward-facing child restraint in a are purchased by the vehicle rear seat. If you must secure a owner, are available in four basic forward-facing child restraint in types. Selection of a particular (Continued) restraint should take into consideration not only the child's Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (37,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-37
weight, height, and age but also whether or not the restraint will { Warning { Warning be compatible with the motor vehicle in which it will be used. To reduce the risk of neck and A young child's hip bones are still head injury during a crash, infants so small that the vehicle's regular For most basic types of child need complete support. In a safety belt may not remain low on restraints, there are many crash, if an infant is in a the hip bones, as it should. different models available. When rear-facing child restraint, the Instead, it may settle up around purchasing a child restraint, be sure it is designed to be used in crash forces can be distributed the child's abdomen. In a crash, a motor vehicle. If it is, the across the strongest part of an the belt would apply force on a restraint will have a label saying infant's body, the back and body area that is unprotected by that it meets federal motor shoulders. Infants should always any bony structure. This alone vehicle safety standards. be secured in rear-facing child could cause serious or fatal restraints. injuries. To reduce the risk of The restraint manufacturer instructions that come with the serious or fatal injuries during a restraint state the weight and crash, young children should height limitations for a particular always be secured in appropriate child restraint. In addition, there child restraints. are many kinds of restraints available for children with special needs. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (38,1) 7707475) - 2015 - CRC - 10/9/14
3-38 Seats and Restraints
Child Restraint Systems
Forward-Facing Child Seat Booster Seats Rear-Facing Infant Seat A forward-facing child seat provides A booster seat is a child restraint restraint for the child's body with the designed to improve the fit of the A rear-facing infant seat provides harness. vehicle's safety belt system. restraint with the seating surface A booster seat can also help a child against the back of the infant. to see out the window. The harness system holds the infant in place and, in a crash, acts to keep the infant positioned in the restraint. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (39,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-39
Securing an Add-On Child Children can be endangered in a Administration (NHTSA) website to Restraint in the Vehicle crash if the child restraint is not locate the nearest child safety seat properly secured in the vehicle. inspection station. For CPST { Warning When securing an add-on child availability in Canada, check with restraint, refer to the instructions Transport Canada or the Provincial A child can be seriously injured or that come with the restraint which Ministry of Transportation office. killed in a crash if the child may be on the restraint itself or in a Securing the Child Within the restraint is not properly secured in booklet, or both, and to this manual. Child Restraint the vehicle. Secure the child The child restraint instructions are restraint properly in the vehicle important, so if they are not { Warning using the vehicle safety belt or available, obtain a replacement LATCH system, following the copy from the manufacturer. A child can be seriously injured or instructions that came with that Keep in mind that an unsecured killed in a crash if the child is not child restraint and the instructions child restraint can move around in a properly secured in the child in this manual. collision or sudden stop and injure restraint. Secure the child people in the vehicle. Be sure to properly following the instructions To help reduce the chance of injury, properly secure any child restraint in that came with that child restraint. the child restraint must be secured the vehicle — even when no child is in the vehicle. Child restraint in it. systems must be secured in vehicle In some areas of the United States Where to Put the seats by lap belts or the lap belt and Canada, Certified Child Restraint portion of a lap-shoulder belt, or by Passenger Safety Technicians According to accident statistics, the LATCH system. See Lower (CPSTs) are available to inspect children and infants are safer when Anchors and Tethers for Children and demonstrate how to correctly properly restrained in a child (LATCH System) on page 3-41. use and install child restraints. In restraint system or infant restraint the U.S., refer to the National system secured in a rear seating Highway Traffic Safety position. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (40,1) 7707475) - 2015 - CRC - 10/9/14
3-40 Seats and Restraints
Whenever possible, children aged Child restraints and booster seats 12 and under should be secured in Warning (Continued) vary considerably in size, and some a rear seating position. may fit in certain seating positions system is fail-safe. No one can better than others. Never put a rear-facing child seat in guarantee that an airbag will not the front. This is because the risk to deploy under some unusual Depending on where you place the the rear-facing child is so great if the circumstance, even though it is child restraint and the size of the airbag deploys. turned off. child restraint, you may not be able to access adjacent safety belt { Warning Secure rear-facing child restraints assemblies or LATCH anchors for in a rear seat, even if the airbag additional passengers or child A child in a rear-facing child is off. If you secure a restraints. Adjacent seating restraint can be seriously injured forward-facing child restraint in positions should not be used if the or killed if the front passenger the front seat, always move the child restraint prevents access to or airbag inflates. This is because front passenger seat as far back interferes with the routing of the the back of the rear-facing child as it will go. It is better to secure safety belt. restraint would be very close to the child restraint in a rear seat. Wherever a child restraint is the inflating airbag. A child in a See Passenger Sensing System installed, be sure to secure the child forward-facing child restraint can on page 3-26 for additional restraint properly. be seriously injured or killed if the information. Keep in mind that an unsecured front passenger airbag inflates child restraint can move around in a and the passenger seat is in a collision or sudden stop and injure forward position. When securing a child restraint in a rear seating position, study the people in the vehicle. Be sure to Even if the passenger sensing instructions that came with the child properly secure any child restraint in system has turned off the front restraint to make sure it is the vehicle — even when no child is passenger frontal airbag, no compatible with this vehicle. in it. (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (41,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-41
Lower Anchors and recommends that the booster seat The following explains how to attach be secured with the LATCH system, a child restraint with these Tethers for Children this can be done as long as the attachments in the vehicle. (LATCH System) booster seat can be positioned Not all vehicle seating positions or The LATCH system secures a child properly and there is no interference child restraints have lower anchors restraint during driving or in a crash. with the proper positioning of the and attachments or top tether LATCH attachments on the child lap-shoulder belt on the child. anchors and attachments. restraint are used to attach the child Make sure to follow the instructions restraint to the anchors in the that came with the child restraint, Lower Anchors vehicle. The LATCH system is and also the instructions in this designed to make installation of a manual. child restraint easier. When installing a child restraint with In order to use the LATCH system in a top tether, you must also use your vehicle, you need a child either the lower anchors or the restraint that has LATCH safety belts to properly secure the attachments. LATCH-compatible child restraint. A child restraint must rear-facing and forward-facing child never be installed using only the top seats can be properly installed tether and anchor. using either the LATCH anchors or The LATCH anchorage system can the vehicle s safety belts. Do not ’ be used until the combined weight use both the safety belts and the of the child plus the child restraint is LATCH anchorage system to secure 29.5 kg (65 lbs). Use the safety belt a rear-facing or forward-facing Lower anchors (1) are metal bars alone instead of the LATCH child seat. built into the vehicle. There are two anchorage system once the lower anchors for each LATCH Booster seats use the vehicle s ’ combined weight is more than seating position that will safety belts to secure the child in 29.5 kg (65 lbs). accommodate a child restraint with the booster seat. If the manufacturer lower attachments (2). Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (42,1) 7707475) - 2015 - CRC - 10/9/14
3-42 Seats and Restraints
Top Tether Anchor The child restraint may have a Lower Anchor and Top Tether single tether (3) or a dual tether (4). Anchor Locations Either will have a single attachment (2) to secure the top tether to the anchor. Some child restraints that have a top tether are designed for use with or without the top tether being attached. Others require the top tether always to be attached. In Canada, the law requires that forward-facing child restraints have a top tether, and that the tether be attached. Be sure to read and follow the instructions for the child A top tether (3, 4) anchors the top of Rear Seat the child restraint to the vehicle. restraint. A top tether anchor is built into the I (Top Tether Anchor): Seating vehicle. The top tether positions with top tether anchors. attachment (2) on the child restraint H (Lower Anchor): Seating connects to the top tether anchor in positions with two lower anchors. the vehicle in order to reduce the forward movement and rotation of the child restraint during driving or in a crash. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (43,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-43
To assist in locating the lower The top tether anchors are under Securing a Child Restraint anchors, each rear anchor position the covers, behind the rear seat, on Designed for the LATCH has a label, near the crease the filler panel. Be sure to use an System between the seatback and the seat anchor on the same side of the cushion. vehicle as the seating position where the child restraint will be { Warning placed. If a LATCH-type child restraint is Do not secure a child restraint in a not attached to anchors or with position without a top tether anchor the safety belt, the child restraint if a national or local law requires will not be able to protect the child that the top tether be attached, or if correctly. In a crash, the child the instructions that come with the could be seriously injured or To assist in locating the top tether child restraint say that the top tether killed. Install a LATCH-type child anchors, the top tether anchor must be attached. restraint properly using the symbol is on the cover. According to accident statistics, anchors, or use the vehicle safety children and infants are safer when belts to secure the restraint, properly restrained in a child following the instructions that restraint system or infant restraint came with the child restraint and system secured in a rear seating the instructions in this manual. position. See Where to Put the Restraint on page 3-39 for additional information. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (44,1) 7707475) - 2015 - CRC - 10/9/14
3-44 Seats and Restraints
{ Warning Warning (Continued) { Caution
To reduce the risk of serious or The shoulder belt locks when it is Do not let the LATCH fatal injuries during a crash, do pulled all the way out of the attachments rub against the not attach more than one child retractor. It unlocks when the vehicle’s safety belts. This may restraint to a single anchor. shoulder belt is allowed to go all damage these parts. If necessary, Attaching more than one child the way back into the retractor, move buckled safety belts to restraint to a single anchor could but it cannot do this if it is avoid rubbing the LATCH cause the anchor or attachment wrapped around a child’s neck. attachments. to come loose or even break If the shoulder belt is locked and Do not fold the empty rear seat during a crash. A child or others tightened around a child’s neck, with a safety belt buckled. This could be injured. the only way to loosen the belt is could damage the safety belt or to cut it. the seat. Unbuckle and return the Buckle any unused safety belts safety belt to its stowed position, { Warning behind the child restraint so before folding the seat. children cannot reach them. Pull Children can be seriously injured the shoulder belt all the way out If you need to secure more than one or strangled if a shoulder belt is of the retractor to set the lock, child restraint in the rear seat, see wrapped around their neck. The and tighten the belt behind the Where to Put the Restraint on shoulder belt can tighten but child restraint after the child page 3-39. cannot be loosened if it is locked. restraint has been installed. (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (45,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-45
You cannot secure three child Refer to the following illustration to . Use anchors 4 and 5 when restraints using the LATCH anchors learn which anchors to use. installing a child restraint using in the rear seat at the same time, LATCH in the left rear seating but you can install two of them. position. If you want to do this, install one Installing child restraints using LATCH child restraint in the right LATCH in the center and left rear rear seating position, and install the seating positions at the same time is other one either in the left rear prohibited. seating position or in the center seating position. If you need to Make sure to attach the child install child restraints in both the restraint at the proper anchor center and left rear seating location. positions, the one in the center This system is designed to make seating position will need to be installation of child restraints easier. secured using the vehicle safety When using lower anchors, do not belts instead of the LATCH anchors. use the vehicle's safety belts. There are five lower LATCH anchors Instead use the vehicle's anchors in the rear seat. and child restraint attachments to . Use anchors 1 and 2 when secure the restraints. Some installing a child restraint using restraints also use another vehicle LATCH in the right rear seating anchor to secure a top tether. position. 1. Attach and tighten the lower . Use anchors 3 and 4 when attachments to the lower installing a child restraint using anchors. If the child restraint LATCH in the center rear seating does not have lower position. attachments or the desired seating position does not have lower anchors, secure the child Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (46,1) 7707475) - 2015 - CRC - 10/9/14
3-46 Seats and Restraints
restraint with the top tether and 2. If the child restraint manufacturer If the position you are using the safety belts. Refer to the recommends that the top tether does not have a headrest child restraint manufacturer be attached, attach and tighten or head restraint, or the instructions and the instructions the top tether to the top tether headrest or head restraint in this manual. anchor, if equipped. Refer to the has been removed, and you 1.1. Find the lower anchors for child restraint instructions and are using a single tether, the desired seating the following steps: route the tether over the position. 2.1. Find the top tether anchor. seatback. 1.2. Put the child restraint on Open the cover to expose the seat. the anchor. If the head restraint 2.2. Route, attach, and tighten interferes with the proper the top tether according to installation of the child the child restraint restraint, the head restraint instructions and the may be removed. See following instructions: “Head Restraint Removal and Reinstallation” at the end of this section. If the position you are using does not have a headrest 1.3. Attach and tighten the lower or head restraint, or the attachments on the child headrest or head restraint restraint to the lower has been removed, and you anchors. are using a dual tether, route the tether over the seatback. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (47,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-47
If the position you are using To remove the head restraint: has an adjustable headrest 1. Partially fold the seatback or head restraint and you forward. See Rear Seats on are using a dual tether, page 3-11 for additional route the tether around the information. headrest or head restraint. 3. Before placing a child in the child restraint, make sure it is securely held in place. To check, If the position you are using grasp the child restraint at the has an adjustable headrest LATCH path and attempt to or head restraint and you move it side to side and back are using a single tether, and forth. There should be no route the tether under the more than 2.5 cm (1 in) of headrest or head restraint movement, for proper and in between the installation. headrest or head restraint posts. Head Restraint Removal and Reinstallation 2. Press both buttons on the head The rear outboard head restraints restraint posts at the same time, can be removed if they interfere with and pull up on the head the proper installation of the child restraint. restraint. 3. Store the head restraint in the trunk of the vehicle. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (48,1) 7707475) - 2015 - CRC - 10/9/14
3-48 Seats and Restraints
4. When the child restraint is To reinstall the head restraint: 3. Try to move the head restraint to removed, reinstall the head make sure that it is locked in restraint before the seating place. position is used. Replacing LATCH System { Warning Parts After a Crash With head restraints that are not installed and adjusted properly, { Warning there is a greater chance that A crash can damage the LATCH occupants will suffer a neck/ system in the vehicle. A damaged spinal injury in a crash. Do not LATCH system may not properly drive until the head restraints for secure the child restraint, all occupants are installed and resulting in serious injury or even adjusted properly. 1. Insert the head restraint posts death in a crash. To help make into the holes in the top of the sure the LATCH system is seatback. The notches on the working properly after a crash, posts must face the driver side see your dealer to have the of the vehicle. system inspected and any 2. Push the head restraint down. necessary replacements made as If necessary, press the height soon as possible. adjustment release button to further lower the head restraint. See Head Restraints on page 3-2. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (49,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-49
If the vehicle has the LATCH system secured in the vehicle using a If more than one child restraint and it was being used during a safety belt and it uses a top tether, needs to be installed in the rear crash, new LATCH system parts see Lower Anchors and Tethers for seat, be sure to read Where to Put may be needed. Children (LATCH System) on the Restraint on page 3-39. New parts and repairs may be page 3-41 for top tether anchor 1. Put the child restraint on necessary even if the LATCH locations. the seat. system was not being used at the Do not secure a child seat in a If the head restraint interferes time of the crash. position without a top tether anchor with the proper installation of the if a national or local law requires child restraint, the head restraint that the top tether be anchored, or if Securing Child Restraints may be removed. See “Head (Rear Seat) the instructions that come with the Restraint Removal and child restraint say that the top strap Reinstallation under Lower When securing a child restraint in a ” must be anchored. Anchors and Tethers for rear seating position, study the If the child restraint or vehicle seat Children (LATCH System) on instructions that came with the child position does not have the LATCH page 3-41. restraint to make sure it is system, you will be using the safety compatible with this vehicle. 2. Pick up the latch plate, and run belt to secure the child restraint in the lap and shoulder portions of If the child restraint has the LATCH this position. Be sure to follow the the vehicle's safety belt through system, see Lower Anchors and instructions that came with the child or around the restraint. The child Tethers for Children (LATCH restraint. Secure the child in the restraint instructions will show System) on page 3-41 for how and child restraint when and as the you how. where to install the child restraint instructions say. using LATCH. If a child restraint is Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (50,1) 7707475) - 2015 - CRC - 10/9/14
3-50 Seats and Restraints
3. Push the latch plate into the 4. Pull the shoulder belt all the way 5. To tighten the belt, push down buckle until it clicks. out of the retractor to set the on the child restraint, pull the Position the release button on lock. When the retractor lock is shoulder portion of the belt to the buckle so that the safety belt set, the belt can be tightened but tighten the lap portion of the belt, could be quickly unbuckled if not pulled out of the retractor. and feed the shoulder belt back necessary. into the retractor. When installing a forward-facing child restraint, it may be helpful to use your knee to push down on the child restraint as you tighten the belt. Try to pull the belt out of the retractor to make sure the retractor is locked. If the retractor is not locked, repeat Steps 4 and 5. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (51,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-51
6. If the child restraint has a top and Tethers for Children (LATCH tether, follow the child restraint System) on page 3-41 for additional { Warning manufacturer's instructions information on installing the head regarding the use of the top restraint properly. A child in a rear-facing child tether. See Lower Anchors and restraint can be seriously injured Tethers for Children (LATCH Securing Child Restraints or killed if the front outboard passenger frontal airbag inflates. System) on page 3-41 for more (Front Passenger Seat) information. This is because the back of the This vehicle has airbags. A rear rear-facing child restraint would 7. Before placing a child in the seat is a safer place to secure a be very close to the inflating child restraint, make sure it is forward-facing child restraint. See airbag. A child in a forward-facing securely held in place. To check, Where to Put the Restraint on grasp the child restraint at the child restraint can be seriously page 3-39. safety belt path and attempt to injured or killed if the front move it side to side and back In addition, the vehicle has a outboard passenger frontal airbag and forth. When the child passenger sensing system which is inflates and the passenger seat is restraint is properly installed, designed to turn off the front in a forward position. there should be no more than outboard passenger frontal airbag Even if the passenger sensing 2.5 cm (1 in) of movement. under certain conditions. See system has turned off the front Passenger Sensing System on To remove the child restraint, outboard passenger frontal page 3-26 and Passenger Airbag unbuckle the vehicle safety belt and airbag, no system is fail-safe. No Status Indicator on page 5-15 for let it return to the stowed position. one can guarantee that an airbag more information, including If the top tether is attached to a top will not deploy under some important safety information. tether anchor, disconnect it. If the unusual circumstance, even head restraint was removed, Never put a rear-facing child seat in though it is turned off. reinstall it before the seating the front. This is because the risk to (Continued) position is used. See “Head the rear-facing child is so great if the Restraint Removal and airbag deploys. Reinstallation” under Lower Anchors Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (52,1) 7707475) - 2015 - CRC - 10/9/14
3-52 Seats and Restraints
In Canada, the law requires that or around the restraint. The child Warning (Continued) forward-facing child restraints have restraint instructions will show a top tether, and that the tether be you how. Secure rear-facing child restraints attached. in a rear seat, even if the airbag is off. If you secure a When using the lap-shoulder belt to forward-facing child restraint in secure the child restraint in this the front seat, always move the position, follow the instructions that front passenger seat as far back came with the child restraint and the following instructions: as it will go. It is better to secure the child restraint in a rear seat. 1. Move the seat as far back as it will go before securing the See Passenger Sensing System forward-facing child restraint. on page 3-26 for additional information. When the passenger sensing system has turned off the front outboard passenger frontal If the child restraint uses a top airbag, the off indicator on the tether, see Lower Anchors and 4. Push the latch plate into the passenger airbag status buckle until it clicks. Tethers for Children (LATCH indicator should light and stay lit System) on page 3-41 for top tether when you start the vehicle. See Position the release button on anchor locations. Passenger Airbag Status the buckle so that the safety belt Do not secure a child seat in a Indicator on page 5-15. could be quickly unbuckled if necessary. position without a top tether anchor 2. Put the child restraint on if a national or local law requires the seat. that the top tether be anchored, or if the instructions that come with the 3. Pick up the latch plate, and run child restraint say that the top strap the lap and shoulder portions of must be anchored. the vehicle's safety belt through Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (53,1) 7707475) - 2015 - CRC - 10/9/14
Seats and Restraints 3-53
7. Before placing a child in the child restraint, make sure it is securely held in place. To check, grasp the child restraint at the safety belt path and attempt to move it side to side and back and forth. When the child restraint is properly installed, there should be no more than 2.5 cm (1 in) of movement. If the airbag is off, the off indicator in the passenger airbag status 5. Pull the shoulder belt all the way 6. To tighten the belt, push down indicator will come on and stay on out of the retractor to set the on the child restraint, pull the when the vehicle is started. lock. When the retractor lock is shoulder portion of the belt to If a child restraint has been installed set, the belt can be tightened but tighten the lap portion of the belt, and the on indicator is lit, see “If the not pulled out of the retractor. and feed the shoulder belt back On Indicator Is Lit for a Child into the retractor. When installing Restraint ” under Passenger a forward-facing child restraint, it Sensing System on page 3-26 for may be helpful to use your knee more information. to push down on the child restraint as you tighten the belt. To remove the child restraint, unbuckle the vehicle safety belt and Try to pull the belt out of the let it return to the stowed position. retractor to make sure the retractor is locked. If the retractor is not locked, repeat Steps 5 and 6. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (54,1) 7707475) - 2015 - CRC - 10/9/14
3-54 Seats and Restraints
2 NOTES Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
Storage 4-1
Storage Storage Cupholders Compartments Storage Compartments Storage Compartments ...... 4-1 { Warning Glove Box ...... 4-1 Cupholders ...... 4-1 Do not store heavy or sharp Front Storage ...... 4-2 objects in storage compartments. Sunglasses Storage ...... 4-3 In a crash, these objects may Center Console Storage ...... 4-3 cause the cover to open and could result in injury. Additional Storage Features Convenience Net ...... 4-3 Glove Box The glove box is located on the Press and release to access the passenger side of the instrument front cupholders. panel. Lift up on the lever to open it. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
4-2 Storage
Front Storage
If equipped, pull the second row If equipped, there is storage under seat armrest down to access the climate controls. Press the cupholders. Pull up on the handle and pull the chrome area to open. There is a cover down to open. power outlet inside. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
Storage 4-3
Sunglasses Storage Center Console Storage Additional Storage Features Convenience Net Use the convenience net located in the trunk to store small loads as far forward as possible. The net should not be used to store heavy loads. Attach the net so the opening is facing up. Attach the net loops to the hooks on the rear panel of the trunk.
If equipped, sunglasses storage is There is storage in the center on the overhead console. Press the console armrest. Press the button to fixed button on the cover and access. An accessory power outlet, release to access. USB port, SD card reader, and transmitter pocket are inside. See Power Outlets on page 5-5 and the infotainment manual. Press the fixed button to access the cup holders. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
4-4 Storage
2 NOTES Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-1
Passenger Airbag Status Front Fog Lamp Light ...... 5-25 Instruments and Indicator ...... 5-15 Lamps On Reminder ...... 5-25 Controls Charging System Light ...... 5-16 Cruise Control Light ...... 5-25 Malfunction Door Ajar Light ...... 5-26 Indicator Lamp ...... 5-16 Brake System Warning Information Displays Controls Power Flows Steering Wheel Adjustment . . . 5-2 Light ...... 5-19 Electric Parking Brake (eAssist Only) ...... 5-26 Steering Wheel Controls ...... 5-2 Energy Information Heated Steering Wheel ...... 5-3 Light ...... 5-20 Service Electric Parking Brake (eAssist Only) ...... 5-27 Horn ...... 5-3 Driver Information Windshield Wiper/Washer . . . . . 5-3 Light ...... 5-20 Antilock Brake System (ABS) Center (DIC) ...... 5-28 Compass ...... 5-4 Head-Up Display (HUD) . . . . . 5-31 Clock ...... 5-4 Warning Light ...... 5-20 Power Outlets ...... 5-5 Lane Departure Warning Vehicle Messages (LDW) Light ...... 5-21 Vehicle Messages ...... 5-35 Warning Lights, Gauges, and Vehicle Ahead Indicator ...... 5-21 Battery Voltage and Charging Indicators Traction Off Light ...... 5-21 ® Messages ...... 5-35 Warning Lights, Gauges, and StabiliTrak OFF Light ...... 5-22 Brake System Messages . . . . 5-36 Indicators ...... 5-7 Traction Control System ® Compass Messages ...... 5-36 Instrument Cluster ...... 5-8 (TCS)/StabiliTrak Light . . . . 5-22 Cruise Control Messages . . . . 5-36 Speedometer ...... 5-11 Engine Coolant Temperature Door Ajar Messages ...... 5-37 Odometer ...... 5-11 Warning Light ...... 5-22 Engine Cooling System Tachometer ...... 5-11 Tire Pressure Light ...... 5-23 Messages ...... 5-38 Fuel Gauge ...... 5-12 Engine Oil Pressure Light . . . . 5-23 Engine Oil Messages ...... 5-38 Engine Coolant Temperature Low Fuel Warning Light ...... 5-24 Engine Power Messages . . . . 5-39 Gauge ...... 5-13 Security Light ...... 5-24 Fuel System Messages ...... 5-39 Safety Belt Reminders ...... 5-14 High-Beam On Light ...... 5-25 Key and Lock Messages . . . . . 5-39 Airbag Readiness Light ...... 5-14 Adaptive Forward Lighting Lamp Messages ...... 5-40 (AFL) Light ...... 5-25 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
5-2 Instruments and Controls
Object Detection System Controls 3. Pull or push the steering wheel Messages ...... 5-40 closer or away from you. Ride Control System 4. Pull the lever up to lock the Messages ...... 5-42 Steering Wheel steering wheel in place. Airbag System Messages . . . . 5-42 Adjustment Security Messages ...... 5-43 Do not adjust the steering wheel Service Vehicle Messages . . . 5-43 while driving. Starting the Vehicle Messages ...... 5-43 Steering Wheel Controls Tire Messages ...... 5-43 Transmission Messages . . . . . 5-44 The infotainment system can be Vehicle Speed Messages . . . . 5-44 operated by using the steering Window Messages ...... 5-44 wheel controls. See "Steering Wheel Controls" in the infotainment Vehicle Personalization manual. Vehicle Personalization ...... 5-45 Universal Remote System Universal Remote System . . . 5-51 Universal Remote System To adjust the steering wheel: Programming ...... 5-51 Universal Remote System 1. Pull the lever down. Operation ...... 5-53 2. Move the steering wheel up or down. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-3
Heated Steering Wheel Windshield Wiper/Washer INT (Intermittent Wipes): Move the lever up to INT for intermittent wipes, then turn the x INT band up for more frequent wipes or down for less frequent wipes. OFF: Use to turn the wipers off. 1X (Mist): For a single wipe, briefly move the wiper lever down. For The windshield wiper/washer lever several wipes, hold the wiper is on the right side of the steering lever down. column. Clear snow and ice from the wiper With the ignition in ACC/ blades and windshield before using ACCESSORY or ON/RUN/START, them. If frozen to the windshield, move the windshield wiper lever to carefully loosen or thaw them. ( (Heated Steering Wheel): select the wiper speed. Damaged blades should be If equipped with a heated steering HI: Use for fast wipes. replaced. See Wiper Blade wheel, press to turn on or off. A light Replacement on page 10-30. LO: Use for slow wipes. on the button displays when the Heavy snow or ice can overload the feature is turned on. The steering wiper motor. wheel takes about three minutes to start heating. Wiper Parking If the ignition is put in OFF while the Horn wipers are on LO, HI, or INT, they will immediately stop. Press a on the steering wheel pad to sound the horn. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
5-4 Instruments and Controls
If the windshield wiper lever is then will automatically determine when a moved to OFF before the driver { Warning GPS signal is restored and provide door is opened or within 10 minutes, a heading again. See Compass the wipers will restart and move to In freezing weather, do not use Messages on page 5-36 for the the base of the windshield. the washer until the windshield is messages that may be displayed for warmed. Otherwise the washer the compass. If the ignition is put in OFF while the fluid can form ice on the wipers are performing wipes due to windshield, blocking your vision. windshield washing, the wipers Clock continue to run until they reach the Setting the Time and Date base of the windshield. Compass To set the time or date: n L (Windshield Washer): Pull The vehicle may have a compass the windshield wiper lever toward display on the Driver Information 1. Select Settings from the Home you to spray washer fluid and Center (DIC). The compass receives Page, then select Time and Date activate the wipers. The wipers will its heading and other information Settings. continue until the lever is released from the Global Positioning 2. Select the desired function. or the maximum wash time is System (GPS) antenna, reached. When the lever is StabiliTrak®, and vehicle speed To set the time or date, press « or released, additional wipes may information. ª to change the hour, minutes, occur depending on how long the AM, PM, day, month, or year. windshield washer had been The compass system is designed to To change the 12-24Hr setting, activated. See Washer Fluid on operate for a certain number of press the 12-24Hr button. page 10-24 for information on filling miles or degrees of turn before the windshield washer fluid needing a signal from the GPS To turn Auto Set on and off, press reservoir. satellites. When the compass the Auto Set button. display shows CAL, drive the vehicle for a short distance in an open area where it can receive a GPS signal. The compass system Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (5,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-5
If auto timing is set, the time Open the protective cover to use the Power Outlet 110 Volt Alternating displayed on the clock may not accessory power outlet. Current update immediately when driving Certain electrical accessories may The vehicle may have a power into a new time zone. not be compatible with the outlet that can be used to plug in Press q BACK to go to the last accessory power outlet and could electrical equipment with a overload vehicle or adapter fuses. maximum limit of 150 watts. menu and save the changes or { to If there is a problem, see your return to the Home Page. dealer. Power Outlets When adding electrical equipment, be sure to follow the installation The accessory power outlets can be instructions included with the used to plug in electrical equipment, equipment. See Add-On Electrical such as a cell phone or MP3 player. Equipment on page 9-68. There are two accessory power outlets: one under the armrest { Caution inside the center console storage, and one on the rear of the center Hanging heavy equipment from floor console. the power outlet can cause damage not covered by the The outlet is powered when the vehicle warranty. The power The power outlet is on the rear of ignition is in ON/RUN or ACC/ the center console. ACCESSORY, or until the driver outlets are designed for door is opened within 10 minutes of accessory power plugs only, such turning off the vehicle. See Retained as cell phone charge cords. Accessory Power (RAP) on page 9-23. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (6,1) 7707475) - 2015 - CRC - 10/9/14
5-6 Instruments and Controls
An indicator light on the outlet A protection circuit shuts off the The power outlet is not designed for comes on when in use. The light power supply and the indicator light the following equipment, and may comes on when the ignition is in turns off. To reset the circuit, unplug not work properly if any of the ON/RUN, equipment requiring less the item and plug it back in or turn following is plugged in: than 150 watts is plugged into the the Remote Accessory Power (RAP) . Equipment with high initial peak outlet, and no system fault is off and then back on. See Retained wattage such as: detected. Accessory Power (RAP) on compressor-driven refrigerators The indicator light does not come on page 9-23. Prolonged usage of the and electric power tools. when the ignition is in LOCK/OFF or power outlet at the maximum load of 150 watts may cause the outlet to . Other equipment requiring an if the equipment is not fully seated extremely stable power supply into the outlet. overheat and automatically shut down. The power restarts when such as: If you try to connect equipment equipment that operates within the microcomputer-controlled using more than 150 watts or a limit is plugged into the outlet and a electric blankets, touch sensor system fault is detected, the system fault is not detected. lamps, etc. equipment may operate for a short . Medical equipment. period and turn itself off. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (7,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-7
Warning Lights, Warning lights come on when there When one of the warning lights could be a problem with a vehicle comes on and stays on while Gauges, and function. Some warning lights come driving, or when one of the gauges on briefly when the engine is started shows there may be a problem, Indicators to indicate they are working. check the section that explains what Warning lights and gauges can Gauges can indicate when there to do. Waiting to do repairs can be signal that something is wrong could be a problem with a vehicle costly and even dangerous. before it becomes serious enough function. Often gauges and warning to cause an expensive repair or lights work together to indicate a replacement. Paying attention to the problem with the vehicle. warning lights and gauges could prevent injury. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (8,1) 7707475) - 2015 - CRC - 10/9/14
5-8 Instruments and Controls
Instrument Cluster
English Shown, Metric Similar Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (9,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-9
English eAssist Shown, Metric eAssist Similar Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (10,1) 7707475) - 2015 - CRC - 10/9/14
5-10 Instruments and Controls
Cluster Menu Press S to access the cluster Phone There is an interactive display area applications. Use y or z to scroll Press V to select the Phone app, in the center of the instrument through the list of available then press T to enter the Phone cluster. applications. Not all applications will menu. In the Phone menu, if there is be available on all vehicles. no active phone call, view recent . Info App. This is where you can calls, scroll through contacts, view the selected Driver or select from the favorites. If there Information Center (DIC) is an active call, mute or unmute the displays. See Driver Information phone or switch to handset or Center (DIC) on page 5-28. handsfree operation. . Audio Navigation . Phone Press V to select the Navigation . Navigation app, then press T to enter the . Settings Navigation menu. If there is no active route, you can resume the Audio last route and turn the voice Use the right steering wheel control V prompts on/off. If there is an active to open and scroll through the Press to select the Audio app, V different items and displays. then press T to enter the Audio route, press to cancel route menu. In the Audio menu browse for guidance or turn the voice prompts music, select from the favorites, on/off. or change the audio source. Settings Press V to select the Settings app. Use y or z to scroll through items in the Settings menu. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (11,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-11
Units: Press T while Units is Speed Warning: The Speed Jump Start: The Jump Start displayed to enter the Units menu. Warning display allows the driver to display is used to perform an Choose English or metric units by set a speed that they do not want to on-board jump start for eAssist exceed. To set the Speed Warning, vehicles. See Jump Starting pressing V while the desired item is “ press T when Speed Warning is (On-board with eAssist Only)” in the highlighted. Index. displayed. Press y or z to adjust Display Themes: Press T while the value. Press V to set the speed. Display Themes is displayed to Speedometer Once the speed is set, this feature enter the menu. Choose Sport or The speedometer shows the can be turned off by pressing V Touring by pressing V while the vehicle's speed in either kilometers desired item is highlighted. while viewing this page. If the per hour (km/h) or miles per selected speed limit is exceeded, a hour (mph). Info Pages: Press T while Info pop-up warning is displayed with a Pages is displayed to enter the Info chime. Odometer Pages menu and select the items to Software Information: Displays be displayed in the Info App. See the open source software The odometer shows how far the Driver Information Center (DIC) on information. vehicle has been driven, in either page 5-28. kilometers or miles. Compass: In certain vehicles the Adaptive Cruise Control : Allows compass setting will allow for Tachometer the driver to select the Auto or manually setting the compass. The Manual setting for Adaptive Cruise user can set the zone and calibrate The tachometer displays the engine Control (ACC). When the Auto the compass. This setting page is speed in revolutions per setting is on, ACC will adjust the only available on vehicles that are minute (rpm). vehicle speed based on the equipped with Remote Compass detected road speed. Module. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (12,1) 7707475) - 2015 - CRC - 10/9/14
5-12 Instruments and Controls
For eAssist vehicles, when the ignition is in ON/RUN, the Caution (Continued) tachometer indicates the vehicle status. When pointing to AUTO the damage would not be covered STOP, the engine is off but the by the vehicle warranty. Do not vehicle is on and can move. The operate the engine with the rpm’s engine could auto start at any time. in the warning area. When the indicator points to OFF, the vehicle is off. Fuel Gauge When the engine is on, the tachometer will indicate the engine’s revolutions per minute (rpm). The tachometer may vary by several English hundred rpm’s, during auto stop When the ignition is on, the fuel mode, when the engine is shutting gauge indicates about how much off and restarting. fuel is left in the tank. A slight bump may be felt when the An arrow on the fuel gauge transmission is determining the indicates the side of the vehicle the most fuel efficient operating range. fuel door is on. { Caution When the indicator nears empty, the low fuel light comes on. There is still Metric If the engine is operated with the a little fuel left, but the fuel tank rpm’s in the warning area at the should be filled soon. high end of the tachometer, the vehicle could be damaged, and (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (13,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-13
Here are four things that some Engine Coolant owners ask about. None of these show a problem with the fuel gauge: Temperature Gauge . At the service station, the fuel pump shuts off before the gauge reads full. . It takes a little more or less fuel to fill up than the gauge indicated. For example, the gauge indicated the tank was half full, but it actually took a little more or less than half the English tank's capacity to fill the tank. This gauge shows the engine . The gauge moves a little while coolant temperature. turning a corner or speeding up. Metric If the gauge pointer moves toward . The gauge takes a few seconds the shaded area, the engine is to stabilize after the ignition is too hot. turned on, and goes back to empty when the ignition is In eAssist vehicles, the engine turned off. coolant warning light comes on when the engine is too hot. See Engine Coolant Temperature Warning Light on page 5-22 in this section. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (14,1) 7707475) - 2015 - CRC - 10/9/14
5-14 Instruments and Controls
This reading indicates the same their safety belt. Then the light stays on solid until the belt is buckled. thing as the warning light. It means on solid until the belt is buckled. This cycle continues several times if that the engine coolant has This cycle may continue several the passenger remains or becomes overheated. If the vehicle has been times if the driver remains or unbuckled while the vehicle is operating under normal driving becomes unbuckled while the moving. conditions, pull off the road, stop the vehicle is moving. If the passenger safety belt is vehicle, and turn off the engine as If the driver safety belt is buckled, buckled, neither the chime nor the soon as possible. See Engine neither the light nor the chime light comes on. Overheating on page 10-21 for more comes on. information. The front passenger safety belt Passenger Safety Belt reminder light and chime may turn Safety Belt Reminders Reminder Light on if an object is put on the seat such as a briefcase, handbag, Driver Safety Belt Reminder There is a passenger safety belt grocery bag, laptop, or other Light reminder light near the passenger electronic device. To turn off the airbag status indicator. See reminder light and/or chime, remove There is a driver safety belt Passenger Sensing System on the object from the seat or buckle reminder light on the instrument page 3-26. the safety belt. cluster. Airbag Readiness Light This light shows if there is an electrical problem with the airbag system. The system check includes the airbag sensor(s), passenger sensing system, the pretensioners, When the vehicle is started, this the airbag modules, the wiring, and When the vehicle is started, this light flashes and a chime may come the crash sensing and diagnostic light flashes and a chime may come on to remind passengers to fasten on to remind the driver to fasten their safety belt. Then the light stays Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (15,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-15
module. For more information on the airbag system, see Airbag System Warning (Continued) on page 3-20. without a crash. To help avoid injury, have the vehicle serviced right away. Canada and Mexico Passenger Airbag Status When the vehicle is started, the Indicator passenger airbag status indicator will light ON and OFF, or the symbol The airbag readiness light comes on The vehicle has a passenger for on and off, for several seconds for several seconds when the sensing system. See Passenger as a system check. Then, after vehicle is started. If the light does Sensing System on page 3-26 for several more seconds, the status not come on then, have it fixed important safety information. The indicator will light either ON or OFF, immediately. overhead console has a passenger airbag status indicator. or either the on or off symbol, to let you know the status of the front { Warning outboard passenger frontal airbag. If the airbag readiness light stays If the word ON or the on symbol is on after the vehicle is started or lit on the passenger airbag status comes on while driving, it means indicator, it means that the front the airbag system might not be outboard passenger frontal airbag is allowed to inflate. working properly. The airbags in United States the vehicle might not inflate in a If the word OFF or the off symbol is crash, or they could even inflate lit on the airbag status indicator, it (Continued) means that the passenger sensing system has turned off the front outboard passenger frontal airbag. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (16,1) 7707475) - 2015 - CRC - 10/9/14
5-16 Instruments and Controls
If, after several seconds, both status Charging System Light Malfunction indicator lights remain on, or if there are no lights at all, there may be a Indicator Lamp problem with the lights or the A computer system called OBD II passenger sensing system. See (On-Board Diagnostics-Second your dealer for service. Generation) monitors the operation of the vehicle to ensure emissions { Warning are at acceptable levels, helping to maintain a clean environment. The If the airbag readiness light ever The charging system light comes on malfunction indicator lamp comes briefly when the ignition is turned comes on and stays on, it means on when the vehicle is placed in on, but the engine is not running, as that something may be wrong ON/RUN for Key Access or Service a check to show the light is working. Only Mode for Keyless Access, as a with the airbag system. To help The light turns off when the engine avoid injury to yourself or others, check to show it is working. If it is started. If it does not, have the does not, have the vehicle serviced have the vehicle serviced right vehicle serviced by your dealer. away. See Airbag Readiness by your dealer. See Ignition Light on page 5-14 for more If the light stays on, or comes on Positions (Key Access) on information, including important while driving, there could be a page 9-15 or Ignition Positions problem with the electrical charging (Keyless Access) on page 9-16 for safety information. system. Have it checked by your more information. dealer. Driving while this light is on could drain the battery. If a short distance must be driven with the light on, be sure to turn off all accessories, such as the radio and air conditioner. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (17,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-17
If the malfunction indicator lamp This light comes on during a comes on while the engine is { Caution malfunction in one of two ways: running, this indicates that the OBD Light Flashing: A misfire condition II system has detected a problem Modifications made to the engine, transmission, exhaust, intake, has been detected. A misfire and diagnosis and service might be increases vehicle emissions and required. or fuel system of the vehicle or the replacement of the original could damage the emission control Malfunctions often are indicated by tires with other than those of the system on the vehicle. Diagnosis the system before any problem is same Tire Performance Criteria and service might be required. apparent. Being aware of the light (TPC) can affect the vehicle's To prevent more serious damage to can prevent more serious damage emission controls and can cause the vehicle: to the vehicle. This system also assists the dealer technician in this light to come on. . Reduce vehicle speed. Modifications to these systems correctly diagnosing any . Avoid hard accelerations. malfunction. could lead to costly repairs not covered by the vehicle warranty. . Avoid steep uphill grades. { Caution This could also result in a failure If the light continues to flash, find a to pass a required Emission safe place to stop and park the If the vehicle is continually driven Inspection/Maintenance test. See vehicle. Turn the vehicle off, wait at with this light on, the emission Accessories and Modifications on least 10 seconds, and restart the controls might not work as well, page 10-3. engine. If the light is still flashing, the vehicle fuel economy might follow the previous steps and see not be as good, and the engine your dealer for service as soon as might not run as smoothly. This possible. could lead to costly repairs that might not be covered by the vehicle warranty. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (18,1) 7707475) - 2015 - CRC - 10/9/14
5-18 Instruments and Controls
Light On Steady: An emission or stumbling on acceleration. control system malfunction has These conditions might go away been detected on the vehicle. once the engine is warmed up. Diagnosis and service might be If one or more of these conditions required. occurs, change the fuel brand used. The following may correct an It may require at least one full tank emission control system of the proper fuel to turn the light off. The DLC is under the instrument malfunction: See Fuel on page 9-58. panel next to the steering wheel. . Check that the fuel cap is fully See your dealer if assistance is If none of the above have made the needed. installed. See Filling the Tank on light turn off, your dealer can check page 9-61. The diagnostic the vehicle. The dealer has the The vehicle may not pass system can determine if the fuel proper test equipment and inspection if: cap has been left off or diagnostic tools to fix any . improperly installed. A loose or The malfunction indicator lamp is mechanical or electrical problems on while the engine is running, missing fuel cap allows fuel to that might have developed. evaporate into the atmosphere. or the malfunction indicator lamp A few driving trips with the cap Emissions Inspection and is not on while the vehicle is in ON/RUN or Service Only Mode. properly installed should turn the Maintenance Programs light off. See your dealer for assistance in Depending on where you live, your verifying proper operation of the . Check that good quality fuel is vehicle may be required to malfunction indicator lamp. used. Poor fuel quality causes participate in an emission control the engine not to run as system inspection and maintenance efficiently as designed and may program. For the inspection, the cause stalling after start-up, emission system test equipment will stalling when the vehicle is likely connect to the vehicle's Data changed into gear, misfiring, Link Connector (DLC). hesitation on acceleration, Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (19,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-19
. The OBD II (On-Board Brake System Warning If the light comes on and stays on, Diagnostics) system determines there is a base brake problem. that critical emission control Light systems have not been The vehicle brake system consists { Warning completely diagnosed by the of two hydraulic circuits. If one system. If this were to occur, the circuit is not working, the remaining The brake system might not be vehicle would be considered not circuit can still work to stop the working properly if the brake ready for inspection. This can vehicle. For normal braking system warning light is on. happen if the 12-volt battery has performance, both circuits need to Driving with the brake system recently been replaced or be working. warning light on can lead to a run down. If the warning light comes on, there crash. If the light is still on after The diagnostic system is is a brake problem. Have the brake the vehicle has been pulled off designed to evaluate critical system inspected right away. the road and carefully stopped, emission control systems during have the vehicle towed for normal driving. This can take service. several days of driving. If this has been done and the vehicle still does not pass the inspection for lack of OBD II system readiness, your dealer can Metric English prepare the vehicle for inspection. This light comes on briefly when the vehicle is turned on. If it does not come on then, have it fixed so it will be ready to warn if there is a problem. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (20,1) 7707475) - 2015 - CRC - 10/9/14
5-20 Instruments and Controls
Electric Parking Brake Service Electric Parking the Driver Information Center (DIC), see Brake System Messages on Light Brake Light page 5-36. Antilock Brake System (ABS) Warning Light
Metric English This light should come on briefly The parking brake status light when starting the vehicle. If it does comes on when the brake is not come on, have it fixed so it will applied. If the light continues be ready to warn if there is a flashing after the parking brake is problem. This light comes on briefly when the released, or while driving, there is a engine is started. problem with the electric parking If this light stays on, there is a brake system. A message may also problem with the Electric Parking If the light does not come on, have it display on the Driver Information Brake system or another system on fixed so it will be ready to warn if Center (DIC). See Brake System the vehicle that is causing the there is a problem. Messages on page 5-36. parking brake system to work at a If the light comes on while driving, reduced level. The vehicle can still If the light does not come on, stop as soon as it is safely possible be driven, but should be taken to a or remains flashing, see your dealer. and turn off the vehicle. Then start dealer as soon as possible. See the the engine again to reset the information for the Electric Parking system. If the ABS light stays on, Brake under Parking Brake on or comes on again while driving, the page 9-31. If a message displays in vehicle needs service. A chime may also sound when the light comes on steady. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (21,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-21
If the ABS light is the only light on, This light changes to amber and Traction Off Light the vehicle has regular brakes, but flashes to indicate that the lane the antilock brakes are not marking has been crossed without functioning. using a turn signal in that direction. If both the ABS and the brake See Lane Departure Warning (LDW) system warning light are on, the on page 9-57. vehicle's antilock brakes are not functioning and there is a problem Vehicle Ahead Indicator with the regular brakes. See your This light comes on briefly while dealer for service. starting the engine. If it does not, See Brake System Warning Light on have the vehicle serviced by your page 5-19 and Brake System dealer. If the system is working Messages on page 5-36. normally, the indicator light then turns off. Lane Departure Warning The traction off light comes on when (LDW) Light If equipped, this indicator will the Traction Control System (TCS) display green when a vehicle is has been turned off by pressing and detected ahead and amber when releasing the TCS/StabiliTrak you are following a vehicle ahead button. much too closely. This light and the StabiliTrak OFF See Forward Collision Alert (FCA) light come on when StabiliTrak is System on page 9-50. turned off. If the TCS is off, wheel spin is not This light is green if LDW is on and limited. Adjust driving accordingly. ready to operate. See Traction Control/Electronic Stability Control on page 9-34. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (22,1) 7707475) - 2015 - CRC - 10/9/14
5-22 Instruments and Controls
StabiliTrak® OFF Light Traction Control System If the indicator/warning light is on ® and flashing, the TCS and/or the (TCS)/StabiliTrak Light StabiliTrak system is actively working. See Traction Control/Electronic Stability Control on page 9-34. Engine Coolant This light comes on briefly while Temperature Warning starting the engine. If it does not, This light comes on briefly when the Light have the vehicle serviced by your engine is started. dealer. If the light does not come on, have This light comes on when the the vehicle serviced by your dealer. StabiliTrak system is turned off. If the system is working normally, If StabiliTrak is off, the Traction the indicator light turns off. Control System (TCS) is also off. If the light is on and not flashing, the If the StabiliTrak and TCS are off, TCS and potentially the StabiliTrak the system does not assist in system have been disabled. A DIC This light comes on briefly while controlling the vehicle. Turn on the message may display. Check the starting the vehicle. TCS and the StabiliTrak systems DIC messages to determine which and the warning light turns off. If it does not, have the vehicle feature(s) is no longer functioning serviced by your dealer. If the See Traction Control/Electronic and whether the vehicle requires system is working normally the Stability Control on page 9-34. service. indicator light goes off. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (23,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-23
Tire Pressure Light When the Light Flashes First and { Caution Then Is On Steady The engine coolant temperature If the light flashes for about a minute warning light indicates that the and then stays on, there may be a vehicle has overheated. Driving problem with the TPMS. If the with this light on can damage the problem is not corrected, the light engine and it may not be covered will come on at every ignition cycle. by the vehicle warranty. See See Tire Pressure Monitor Operation on page 10-52. Engine Overheating on For vehicles with the Tire Pressure page 10-21. Monitor System (TPMS), this light comes on briefly when the engine is Engine Oil Pressure Light started. It provides information The engine coolant temperature about tire pressures and the TPMS. { Caution warning light comes on when the When the Light Is On Steady engine has overheated. Lack of proper engine oil If this happens, pull over and turn This indicates that one or more of maintenance can damage the off the engine as soon as possible. the tires are significantly engine. Driving with the engine See Engine Overheating on underinflated. oil low can also damage the page 10-21. A Driver Information Center (DIC) engine. The repairs would not be tire pressure message may also covered by the vehicle warranty. display. See Tire Messages on Check the oil level as soon as page 5-43. Stop as soon as possible. Add oil if required, but if possible, and inflate the tires to the the oil level is within the operating pressure value shown on the Tire range and the oil pressure is still and Loading Information label. See low, have the vehicle serviced. Tire Pressure on page 10-50. Always follow the maintenance schedule for changing engine oil. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (24,1) 7707475) - 2015 - CRC - 10/9/14
5-24 Instruments and Controls
Low Fuel Warning Light Security Light
This light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced This light is near the fuel gauge and The security light should come on by your dealer. comes on briefly when the ignition is briefly as the engine is started. If it If the light comes on and stays on, it turned on as a check to show it is does not come on, have the vehicle means that oil is not flowing through working. serviced by your dealer. If the the engine properly. The vehicle It also comes on when the fuel tank system is working normally, the could be low on oil and might have is low on fuel. The light turns off indicator light turns off. some other system problem. See when fuel is added. If it does not, If the light stays on and the engine your dealer. have the vehicle serviced. does not start, there could be a problem with the theft-deterrent system. See Immobilizer Operation (Key Access) on page 2-16 or Immobilizer Operation (Keyless Access) on page 2-17. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (25,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-25
High-Beam On Light This light comes on solid when Lamps On Reminder there is a problem with the AFL system. It flashes when the system is switching between lighting modes. See Adaptive Forward Lighting (AFL) on page 6-3. Front Fog Lamp Light This light comes on when the This light comes on when the high-beam headlamps are in use. exterior lamps are in use. See See Headlamp High/Low-Beam Exterior Lamp Controls on page 6-1. Changer on page 6-2. Cruise Control Light Adaptive Forward Lighting (AFL) Light For vehicles with fog lamps, this light comes on when the fog lamps are on. The light goes out when the fog lamps are turned off. See Fog Lamps on page 6-4 for more The cruise control light is white information. when the cruise control is on and ready, and turns green when the This light should come on briefly as cruise control is set and active. the vehicle is started. If it does not come on, have the vehicle serviced See Cruise Control on page 9-37. by your dealer. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (26,1) 7707475) - 2015 - CRC - 10/9/14
5-26 Instruments and Controls
Adaptive Cruise Control Light Door Ajar Light Information Displays Power Flows (eAssist Only) To view the Power Flow screens in the center stack display, press the [ button on the Home screen or This light is white when the Adaptive When the ignition is on, this light on the Application Tray on the top of Cruise Control (ACC, if equipped) is stays on until all doors are closed the infotainment system touch on and ready, and turns green when and completely latched. screen. Then press the Flow button the ACC is set and active. See at the bottom of the touch screen. Adaptive Cruise Control on If a door is not closed properly, a These screens indicate the current page 9-39. chime sounds after the engine is operating condition and the energy started and the vehicle is not in flow between the engine, generator, P (Park). and high voltage battery. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (27,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-27
Auto Stop – Vehicle is stationary with battery active and no power is flowing to the wheels.
Regen Recovery – Power from the Power Off – No power is flowing to wheels returns to the battery during the wheels. regenerative braking or coasting. Energy Information Engine Power – Engine is active (eAssist Only) with energy flowing to the wheels. To view the Efficiency Tips screen on the center stack display, press the [ button on the Home screen or on the Application Tray on the top of the infotainment system touch screen. Then press the Tips button at the bottom of the touch screen. Hybrid Power – Both the engine and battery are active with energy Efficiency Tips flowing to the wheels. The Efficiency Tips screen provides Engine Idle – Vehicle is stationary a guide on how to improve energy with engine active and no power is usage to increase fuel economy. flowing to the wheels. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (28,1) 7707475) - 2015 - CRC - 10/9/14
5-28 Instruments and Controls
Driver Information S or T : Press S to open 6. Press y or z to move through Center (DIC) application menus on the left. Press the list of possible information T to open interaction menus on the displays. The DIC displays are shown in the right. V center of the instrument cluster in V 7. Press while an item is the Info App. See Instrument Cluster (Set/Reset): Press to open a highlighted to select or deselect on page 5-8. The Info App is only menu or select a menu item. Press that item. When an item is available when the vehicle is in ON/ and hold to reset values on certain selected, a checkmark will RUN. The displays show the status screens. appear next to it. of many vehicle systems. The DIC Info Page Options controls for the DIC are on the right DIC Info Pages steering wheel control. The info pages on the DIC can be The following is the list of all turned on or off through the possible DIC info page displays. Settings app. Some may not be available for your 1. Press S to access the cluster particular vehicle. Some items may applications. not be turned on by default but can be turned on through the Settings 2. Press y or z to scroll to the app. See “DIC Info Page Options” Settings application. earlier in this section. 3. Press V to select the Speed (Sport Theme Only): Settings app. Displays the vehicle speed in either kilometers per hour (km/h) or miles 4. Press y or z to scroll to Info per hour (mph). Pages and press T. 5. Select Edit List or press T. y or z : Press to move up or down in a list. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (29,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-29
Trip A or Trip B with Average Fuel display is active, or by pressing T Displays the current fuel economy Economy and Average Speed: and resetting through the in either liters per 100 kilometers The Trip display shows the current right menu. (L/100 km) or miles per distance traveled, in either gallon (mpg). This number reflects kilometers (km) or miles (mi), since The Average Speed display shows only the approximate fuel economy the trip odometer was last reset. the average speed of the vehicle in that the vehicle has right now and The trip odometer can be reset by kilometers per hour (km/h) or miles changes frequently as driving per hour (mph). This average is pressing and holding V while this conditions change. calculated based on the various display is active, or by pressing T vehicle speeds recorded since the Oil Life: Displays an estimate of and resetting through the last reset of this value. The average the oil's remaining useful life. right menu. speed can be reset by pressing and If REMAINING OIL LIFE 99% is displayed, that means 99% of the holding V while this display is The Average Fuel Economy display current oil life remains. shows the approximate average active, or by pressing T and When the remaining oil life is low, liters per 100 kilometers (L/100 km) resetting through the right menu. or miles per gallon (mpg). This the CHANGE ENGINE OIL SOON number is calculated based on the Fuel Range and Instantaneous message will appear on the display. number of L/100 km (mpg) recorded Fuel Economy: Displays the See Engine Oil Messages on since the last time this menu item approximate distance the vehicle page 5-38. The oil should be was reset. This number reflects only can be driven without refueling. changed as soon as possible. See the approximate average fuel LOW will be displayed when the Engine Oil on page 10-11. In economy that the vehicle has right vehicle is low on fuel. The fuel addition to the engine oil life system now, and will change as driving range estimate is based on an monitoring the oil life, additional conditions change. The Average average of the vehicle's fuel maintenance is recommended in the Fuel Economy can be reset by economy over recent driving history Maintenance Schedule. See and the amount of fuel remaining in pressing and holding V while this Maintenance Schedule on the fuel tank. page 11-2. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (30,1) 7707475) - 2015 - CRC - 10/9/14
5-30 Instruments and Controls
The Oil Life display must be reset fuel economy for the most recently To start the timer, press V while this after each oil change. It will not traveled selected distance. The display is active. The display will reset itself. Do not reset the Oil Life center bar graph displays the show the amount of time that has display accidentally at any time instantaneous fuel economy. Press passed since the timer was last other than when the oil has just the T button to display a page for reset. To stop the timer, press V been changed. It cannot be reset selecting one of the distance briefly while this display is active accurately until the next oil change. options. Move the up/down arrow to To reset the engine oil life system, and the timer is running. To reset choose the selection, and V to T press and hold V for several the timer to zero, press while this change the setting. When viewing display is active and select Reset seconds while the Oil Life display is best AFE, a several second press active. See Engine Oil Life System from the timer menu. and hold of V will reset the best on page 10-13. Speed Limit: Displays sign value. The best value will show “-- information, which comes from a Tire Pressure: Displays the -“ until the selected distance has approximate pressures of all four roadway database in the onboard been traveled. The display provides navigation. tires. Tire pressure is displayed in feedback on how current driving either kilopascal (kPa) or in pounds behavior in the bar graph affects the Following Distance Indicator/Gap per square inch (psi). If the pressure running average in the left display Setting: The current follow time to is low, the value for that tire is and how well recent driving the vehicle ahead is displayed as a shown in amber. See Tire Pressure compares to the best that has been time value on this page when ACC Monitor System on page 10-51 and achieved. is not engaged. When ACC has Tire Pressure Monitor Operation on been engaged, the Follow Distance page 10-52. Fuel Used and Timer: Displays Indicator page switches to the Gap the approximate liters (L) or Setting page. This page shows the Fuel Economy: The right hand gallons (gal) of fuel that have been side displays the best average fuel current gap setting. See Forward used since last reset. The fuel used Collision Alert (FCA) System on economy (AFE) that is achieved for can be reset by pressing the T a selected distance. The left hand page 9-50 and Adaptive Cruise button while the Fuel Used display side displays a running average of Control on page 9-39. is showing. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (31,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-31
Driver Efficiency Gauge (eAssist always reflect the most recent Only): Assists in driving efficiently distance on the right side. This Warning (Continued) and will vary based on driver input. display cannot be reset. To maximize efficiency, keep the things you need to see when it is ECO Index: The bar graph on the dark outside. Be sure to keep the leaf in the solid green zone in the left hand side provides feedback on center of the gauge. The gauge HUD image dim and placed low in the efficiency of current driving your field of view. moves down when braking and up behavior. The graph shows when accelerating. When either is a percentage value that is based on done aggressively, the vehicle is current fuel consumption compared If equipped with HUD, some being driven less efficiently and the to what is expected from the vehicle information concerning the gauge will move further from the with good and bad driving habits. operation of the vehicle is projected center Each box represents 10%, with all onto the windshield. The information Drive Cycle Summary (eAssist boxes filled being 100%. More is projected through the HUD lens Only): Displays the distance economical driving will result in on the driver side of the instrument traveled and the fuel economy for being in the ECO box. panel and focused out toward the that trip. Instantaneous Fuel Economy is also front of the vehicle. Top Consumers: Displays the top shown on right hand side. This four vehicle energy consumers, display cannot be reset. { Caution along with their total fuel If you try to use the HUD image consumption. Head-Up Display (HUD) as a parking aid, you may Economy Trend: Displays history { Warning misjudge the distance and of the Average Fuel Economy from damage your vehicle. Do not use the last 50 km (30 miles). Each bar If the HUD image is too bright or the HUD image as a parking aid. represents about 5 km (3 miles) of too high in your field of view, it driving. The fuel economy will range may take you more time to see from 0 – 15 L/100 km (0 – 50 mpg). During driving the bars will shift to (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (32,1) 7707475) - 2015 - CRC - 10/9/14
5-32 Instruments and Controls
The HUD information can be . Lane Departure displayed in various languages. The . Low Fuel speedometer reading and other numerical values can be displayed Some vehicle messages or alerts in either English or metric units. displayed in the HUD may be cleared by using the steering wheel The language selection is changed controls. See Vehicle Messages on through the radio and the units of page 5-35. measurement is changed through the instrument cluster. See Vehicle Personalization on page 5-45 and “Settings” under Instrument Cluster on page 5-8. HUD Display on the Vehicle Windshield The HUD may display some of the following vehicle information and vehicle messages or alerts: . Speed . Tachometer . Audio The HUD control is to the left of the . Phone steering wheel. . Navigation To adjust the HUD image: . Collision Alert 1. Adjust the driver seat to a comfortable position. . Cruise Control 2. Start the engine. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (33,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-33
Use the following settings to adjust on the HUD. If vehicle messages the HUD. are displayed, pressing PAGE may « or ª (Image Adjustment): clear the message. Press the up or down arrows to OFF: To turn HUD off, turn the center the HUD image. The HUD HUD dimming knob fully image can only be adjusted up and counterclockwise until the HUD down, not side to side. display turns off. English Image Brightness: Turn the HUD Views Speed View: This display gives the dimming knob clockwise or speedometer reading (in English or counterclockwise to brighten or dim There are four views in the HUD. metric units), Adaptive Cruise the display. Some vehicle information and Control speed, Lane Departure vehicle messages or alerts may be Warning, and Vehicle Ahead The HUD image will automatically displayed in any view. dim and brighten to compensate for indicator. Some information only appears on vehicles that have these outside lighting. The HUD features, and when they are active. brightness control can also be adjusted as needed. The HUD image can temporarily light up depending on the angle and position of the sunlight on the HUD Metric display. This is normal.
Polarized sunglasses could make Metric the HUD image harder to see. PAGE: Press to select the display view. Release the PAGE button when the desired display is shown Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (34,1) 7707475) - 2015 - CRC - 10/9/14
5-34 Instruments and Controls
English Metric Metric Audio/Phone View: This display includes the information in speed view along with audio/phone information. The current radio station, media type, and incoming calls will be displayed. All HUD views may briefly display English English audio information when the driver Navigation View: This display Performance View: This display uses the steering wheel controls to includes the information in speed gives the speedometer reading (in adjust the audio settings appearing view along with Turn-by-Turn English or metric units), rpm in the instrument cluster. Navigation information. The reading, transmission positions, and Incoming phone calls appearing in compass heading is displayed when gear shift indicator. the instrument cluster, may also navigation routing is not active. Care of the HUD display in any HUD view. Navigation Turn-by-Turn Alerts shown in the instrument cluster may Clean the inside of the windshield also be displayed in any HUD view. as needed to remove any dirt or film that could reduce the sharpness or clarity of the HUD image. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (35,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-35
Clean the HUD lens with a soft cloth Vehicle Messages Battery Voltage and sprayed with glass cleaner. Wipe the lens gently, then dry it. Messages displayed on the DIC Charging Messages indicate the status of the vehicle or BATTERY SAVER ACTIVE If You Cannot See the HUD some action that may be needed to Image When the Ignition Is On correct a condition. Multiple This message displays when the vehicle has detected that the battery Check that: messages may appear one after another. voltage is dropping beyond a . Nothing is covering the reasonable point. The battery saver HUD lens. The messages that do not require system starts reducing features of immediate action can be the vehicle that may be noticed. At . HUD brightness setting is not acknowledged and cleared by too dim or too bright. the point that features are disabled, pressing V (Set/Reset). this message displays. Turn off . HUD is adjusted to the proper unnecessary accessories to allow height. The messages that require immediate action cannot be cleared the battery to recharge. . Polarized sunglasses are until that action is performed. LOW BATTERY not worn. All messages should be taken This message is displayed when the . Windshield and HUD lens are seriously; clearing the message battery voltage is low. See Battery clean. does not correct the problem. on page 10-27. If the HUD image is not correct, The following are the possible SERVICE BATTERY contact your dealer. messages and some information CHARGING SYSTEM The windshield is part of the HUD about them. system. See Windshield This message is displayed when Replacement on page 10-30. there is a fault in the battery charging system. Take the vehicle to your dealer for service. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (36,1) 7707475) - 2015 - CRC - 10/9/14
5-36 Instruments and Controls
Brake System Messages boost assist motor might be heard Cruise Control Messages operating and you might notice BRAKE FLUID LOW pulsation in the brake pedal. This is ADAPTIVE CRUISE SET This message is displayed when the normal under these conditions. Take TO XXX the vehicle to your dealer for brake fluid level is low. See Brake This message displays when the service. Fluid on page 10-26. Adaptive Cruise Control (ACC) SERVICE PARKING BRAKE speed is set. See Adaptive Cruise STEP ON BRAKE TO Control on page 9-39. RELEASE PARK BRAKE This message is displayed when there is a problem with the electric This message is displayed if you ADAPTIVE CRUISE parking brake. See Parking Brake attempt to release the electric TEMPORARILY UNAVAILABLE on page 9-31 for more information. parking brake without the brake Take the vehicle to your dealer. This message displays when pedal applied. See Parking Brake attempting to activate Adaptive on page 9-31 for more information. Cruise Control (ACC) when it is Compass Messages temporarily unavailable. The ACC RELEASE PARK BRAKE CAL system does not need service. This message is displayed if the This message is displayed when the This can occur under the following electric parking brake is on while the conditions: vehicle is in motion. Release it compass needs to be calibrated. before you attempt to drive. See See Compass on page 5-4. . Cruise is turned on when the vehicle is stopped. Parking Brake on page 9-31 for –– more information. . The radar can't see objects well. Dashes will be displayed if the See next message. SERVICE BRAKE ASSIST compass needs service. See your This message may be displayed dealer for service. when there is a problem with the brake boost assist system. When this message is displayed, the brake Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (37,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-37
FRONT RADAR BLOCKED — gas pedal. When this occurs, ACC HOOD OPEN will not brake. See Adaptive Cruise SEE OWNER MANUAL This message will display when the Control on page 9-39. This message can occur under the hood is open. Close the hood following conditions: SERVICE ADAPTIVE CRUISE completely. . The radar is not clean. Keep the CONTROL LEFT REAR DOOR OPEN radar sensors free of mud, dirt, This message displays when the This message will display when the snow, ice, and slush. Clean the Adaptive Cruise Control (ACC) entire front and/or rear of the driver side rear door is open. Close needs service. Take the vehicle to the door completely. vehicle. For cleaning your dealer. instructions, see Exterior Care PASSENGER DOOR OPEN on page 10-85. SHIFT TO PARK BEFORE EXITING This message will display when the . Heavy rain or snow is interfering front passenger door is open. Close with the radar object detection or This message may display if the door completely. camera performance. Adaptive Cruise Control (ACC) is engaged holding the vehicle at a RIGHT REAR DOOR OPEN CRUISE SET TO XXX stop, and the driver attempts to exit This message will display when the This message displays when the the vehicle. Put the vehicle in passenger side rear door is open. cruise control speed is set. See P (Park) before exiting. Close the door completely. Cruise Control on page 9-37. Door Ajar Messages TRUNK OPEN NO CRUISE BRAKING GAS PEDAL APPLIED DRIVER DOOR OPEN This message will display when the trunk is open. Close the trunk This message displays when This message will display when the completely. Adaptive Cruise Control (ACC) is driver door is open. Close the door active and the driver is pressing the completely. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (38,1) 7707475) - 2015 - CRC - 10/9/14
5-38 Instruments and Controls
Engine Cooling System ENGINE OVERHEATED — page 10-13, Driver Information IDLE ENGINE Center (DIC) on page 5-28, Engine Messages Oil on page 10-11, and Maintenance This message displays when the Schedule on page 11-2. A/C OFF DUE TO HIGH engine coolant temperature is too ENGINE TEMP hot. Stop and allow the vehicle to ENGINE OIL HOT, IDLE This message displays when the idle until it cools down. ENGINE engine coolant becomes hotter than ENGINE OVERHEATED This message displays when the the normal operating temperature. — STOP ENGINE engine oil temperature is too hot. To avoid added strain on a hot Stop and allow the vehicle to idle engine, the air conditioning This message displays and a until it cools down. compressor automatically turns off. continuous chime sounds if the When the coolant temperature engine cooling system reaches ENGINE OIL LOW — ADD OIL returns to normal, the air unsafe temperatures for operation. On some vehicles, this message conditioning compressor turns back Stop and turn off the vehicle as displays when the engine oil level on. You can continue to drive the soon as it is safe to do so to avoid may be too low. Check the oil level vehicle. severe damage. This message before filling to the recommended clears when the engine has cooled If this message continues to appear, level. If the oil is not low and this to a safe operating temperature. have the system repaired by your message remains on, take the dealer as soon as possible to avoid vehicle to your dealer for service. damage to the engine. Engine Oil Messages See Engine Oil on page 10-11. COOLANT LEVEL LOW ADD CHANGE ENGINE OIL SOON OIL PRESSURE LOW — STOP COOLANT This message displays when the ENGINE This message will display if the engine oil needs to be changed. This message displays if low oil coolant is low. See Engine Coolant When you change the engine oil, be pressure levels occur. Stop the on page 10-19. sure to reset the oil life system. See vehicle as soon as safely possible Engine Oil Life System on and do not operate it until the cause Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (39,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-39
of the low oil pressure has been Fuel System Messages NO REMOTE KEY WAS corrected. Check the oil as soon as DETECTED PLACE KEY IN possible and have the vehicle FUEL LEVEL LOW TRANSMITTER POCKET THEN serviced by your dealer. This message displays when the START YOUR VEHICLE vehicle is low on fuel. Refuel as Engine Power Messages This message displays when trying soon as possible. to start the vehicle if an RKE ENGINE POWER IS REDUCED TIGHTEN GAS CAP transmitter is not detected. The transmitter battery may be weak. This message displays when the This message displays when the See Starting the Vehicle with a Low vehicle's engine power is reduced. “ fuel cap is not on tight. Tighten the Transmitter Battery under Remote Reduced engine power can affect ” fuel cap. Keyless Entry (RKE) System the vehicle's ability to accelerate. Operation on page 2-3. If this message is on, but there is no Key and Lock Messages reduction in performance, proceed REPLACE BATTERY IN to your destination. The NO REMOTE DETECTED REMOTE KEY performance may be reduced the This message displays when the next time the vehicle is driven. The This message displays when the transmitter battery is weak on vehicle may be driven at a reduced battery in the Remote Keyless Entry vehicles with Keyless Access. See speed while this message is on, but (RKE) transmitter needs to be Starting the Vehicle with a Low maximum acceleration and speed “ replaced. See “Battery Transmitter Battery under Remote may be reduced. Anytime this ” Replacement” under Remote Keyless Entry (RKE) System message stays on, the vehicle Keyless Entry (RKE) System Operation on page 2-3. should be taken to your dealer for Operation on page 2-3. service as soon as possible. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (40,1) 7707475) - 2015 - CRC - 10/9/14
5-40 Instruments and Controls
Lamp Messages AUTOMATIC COLLISION PREP entire front and/or rear of the REDUCED vehicle. For cleaning AFL (Adaptive Forward instructions, see Exterior Care Lighting) LAMPS NEED This message displays when the on page 10-85. SERVICE Active Emergency Braking System has been set to the Alert setting. . Heavy rain or snow is interfering This message displays when the This setting disables most automatic with the radar object detection or Adaptive Forward Lighting (AFL) braking functions of the Auto camera performance. system is disabled and needs Collision Preparation feature. Some This message may also be service. See your dealer. See last-second automatic braking displayed if there is a problem with Adaptive Forward Lighting (AFL) on capability is still provided with the the StabiliTrak system. page 6-3 for more information. Alert setting, but braking is less likely to occur. See Active FORWARD COLLISION Object Detection System Emergency Braking System on ALERT OFF Messages page 9-53. This message displays when the AUTOMATIC COLLISION Forward Collision Alert has been AUTOMATIC COLLISION PREPARATION UNAVAILABLE turned off. PREP OFF This message displays when the FRONT CAMERA BLOCKED This message displays when the Active Emergency Braking System CLEAN WINDSHIELD Active Emergency Braking System has been unavailable for some time. has been turned off. See Active This message displays when the The Active Emergency Braking Emergency Braking System on camera is blocked. Cleaning the System does not need service. page 9-53. outside of the windshield behind the This can occur under the following rearview mirror may correct the conditions: issue. The Lane Departure Warning system will not operate. Forward . The radar is not clean. Keep the radar sensors free of mud, dirt, Collision Alert (FCA) may not work snow, ice, and slush. Clean the or may not work as well. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (41,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-41
LANE CHANGE ALERT OFF REAR CROSS TRAFFIC SERVICE PARKING ASSIST This message indicates that the ALERT OFF This message displays if there is a driver has turned the Side Blind This message displays when the problem with the Parking Assist Zone Alert (SBZA) and Lane Rear Cross Traffic Alert has been system. Do not use this system to Change Alert (LCA) systems off. turned off. help you park. See your dealer for service. LANE DEPARTURE WARNING SERVICE AUTOMATIC UNAVAILABLE COLLISION PREP SERVICE SIDE DETECTION SYSTEM This message displays when If this message displays, take the attempting to activate the Lane vehicle to your dealer to repair the If this message remains on after Departure Warning (LDW) system system. Adaptive Cruise Control continued driving, the vehicle needs when it is temporarily unavailable. (ACC), Forward Collision Alert service. Side Blind Zone Alert The LDW system does not need (FCA), and/or the Active Emergency (SBZA), Lane Change Alert (LCA), service. Braking System may not work. Do and Rear Cross Traffic Alert (RCTA) This message could be due to the not use these systems until the features will not work. Take the camera being blocked. Cleaning the vehicle has been repaired. vehicle to your dealer. outside of the windshield behind the SERVICE FRONT CAMERA SIDE DETECTION SYSTEM rearview mirror may correct the UNAVAILABLE issue. If this message remains on after continued driving, the vehicle needs This message indicates that Side PARK ASSIST OFF service. Do not use the Lane Blind Zone Alert (SBZA), Lane This message displays when the Departure Warning (LDW) and Change Alert (LCA), and Rear Parking Assist system has been Forward Collision Alert (FCA) Cross Traffic Alert (RCTA) are turned off or when there is a features. Take the vehicle to your disabled either because the sensor temporary condition causing the dealer. is blocked and cannot detect system to be disabled. vehicles in the blind zone, or the vehicle is passing through an open area, such as the desert, where Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (42,1) 7707475) - 2015 - CRC - 10/9/14
5-42 Instruments and Controls
there is insufficient data for SERVICE REAR AXLE however, you do not have the operation. This message may also benefit of StabiliTrak, so reduce This message displays when there activate during heavy rain or due to your speed and drive accordingly. is a problem with the All-Wheel road spray. The vehicle does not Drive (AWD) System. See your need service. For cleaning, see SPORT MODE ON dealer for service. "Washing the Vehicle" under This message displays when using Exterior Care on page 10-85. SERVICE TRACTION the selective ride control. See CONTROL Selective Ride Control on page 9-36 Ride Control System for more information. This message displays when there Messages is a problem with the Traction TRACTION CONTROL OFF Control System (TCS). When this ALL WHEEL DRIVE OFF This message displays when the message is displayed, the system Traction Control System (TCS) is This message displays when the will not limit wheel spin. Adjust your turned off. Adjust your driving All-Wheel Drive (AWD) System has driving accordingly. See your dealer accordingly. been turned off. See All-Wheel for service. Drive on page 9-30. SERVICE STABILITRAK Airbag System Messages SERVICE ALL WHEEL DRIVE This message displays if there is a SERVICE AIRBAG SYSTEM problem with the StabiliTrak system. This message displays when there If this message appears, try to reset This message displays if there is a is a problem with the All-Wheel the system. Stop; turn off the engine problem with the airbag system. Drive (AWD) System. See your for at least 15 seconds; then start Take the vehicle to your dealer for dealer for service. the engine again. If this message service. still comes on, it means there is a problem. See your dealer for service. The vehicle is safe to drive, Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (43,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-43
Security Messages Starting the Vehicle eAssist Only).” Take the vehicle to your dealer for service if this THEFT ATTEMPTED Messages message continues to be displayed. This message displays if the vehicle JUMP START ACTIVE WAIT TO detects a tamper condition. START Tire Messages This message displays while SERVICE TIRE MONITOR Service Vehicle Messages performing an on-board jump start SYSTEM of the vehicle. See “Jump Starting SERVICE POWER STEERING This message displays if there is a (On-board with eAssist Only).” This message is displayed if there is problem with the Tire Pressure a problem with the power steering JUMP START COMPLETE Monitor System (TPMS). See Tire system and a chime may sound. ATTEMPT START Pressure Monitor Operation on page 10-52. Take the vehicle to your dealer for This message displays while service. performing an on-board jump start TIRE LEARNING ACTIVE of the vehicle. See Jump Starting SERVICE VEHICLE SOON “ This message displays when the (On-board with eAssist Only).” This message is displayed if there is system is learning new tires. See a problem with the vehicle. Take the JUMP START DISABLED SEE Tire Pressure Monitor Operation on vehicle to your dealer for service. OWNERS MANUAL page 10-52. This message displays if there is a TIRE PRESSURE LOW ADD problem with the on-board jump AIR TO TIRE start system, or the 12 volt battery is On vehicles with the Tire Pressure too low to perform an on-board jump Monitor System (TPMS), this start. Try using jumper cables and message displays when the performing a normal jump start. See pressure in one or more of the Jump Starting (On-board with “ vehicle's tires is low. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (44,1) 7707475) - 2015 - CRC - 10/9/14
5-44 Instruments and Controls
The low tire pressure warning light SHIFT TO PARK SPEED LIMIT SET TO XXX will also come on. See Tire This message displays when the This message is displayed when the Pressure Light on page 5-23. transmission needs to be shifted to speed warning is set. See "Speed If a tire pressure message displays, P (Park). This may appear when Warning" under Instrument Cluster inflate the tires until the tire pressure attempting to remove the key from on page 5-8. is equal to the values shown on the the ignition or from the vehicle if the Tire and Loading Information label. vehicle is not in P (Park). Window Messages See Tires on page 10-42, Vehicle Load Limits on page 9-10, and Tire TRANSMISSION HOT — IDLE OPEN, THEN CLOSE DRIVER/ Pressure on page 10-50. ENGINE PASSENGER WINDOW More than one tire pressure This message displays and a chime This message is displayed when the message can be received at a time. sounds if the transmission fluid in window needs to be reprogrammed. The DIC also shows the tire the vehicle gets hot. Driving with the If the vehicle's battery has been pressure values. See Driver transmission fluid temperature high recharged or disconnected, you will Information Center (DIC) on can cause damage to the vehicle. need to program each front window page 5-28. Stop the vehicle and let it idle to for the express-up feature to work. allow the transmission to cool. This See Power Windows on page 2-20. Transmission Messages message clears when the fluid temperature reaches a safe level. SERVICE TRANSMISSION This message displays if there is a Vehicle Speed Messages problem with the transmission. See SPEED LIMIT EXCEEDED your dealer. This message is displayed when the vehicle speed is greater than the speed warning speed. See "Speed Warning" under Instrument Cluster on page 5-8. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (45,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-45
Vehicle Personalization Menus Language (Language) Personalization The following list of features may be Select Language, then select from available: the available language(s). Use the audio system controls to . Time and Date access the personalization menus Valet Mode for customizing vehicle features. . Language (Language) To turn Valet Mode on and off, see The following are all possible . Valet Mode “Valet Mode” under “Setting Radio Preferences” in the infotainment personalization features. Depending . Radio on the vehicle, some may not be manual. . Vehicle available. Radio . Bluetooth To access the personalization To manage the radio features, see menus: . Voice “Radio Setup” under “Setting Radio 1. Press SETTINGS on the Home . Display Preferences” in the infotainment page on the infotainment system manual. . display. Rear Camera . Vehicle 2. Press the desired feature to Return to Factory Settings Select and the following may be display a list of available . Software Information options. displayed: Each menu is detailed in the . 3. Press the desired option. following information. Climate and Air Quality . Collision/Detection Systems 4. Press to select the desired Time and Date option setting. . Comfort and Convenience Manually set the time and date. See 5. Press q BACK to return to the Clock on page 5-4. . Lighting previous menu. . Power Door Locks . Remote Lock, Unlock, Start Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (46,1) 7707475) - 2015 - CRC - 10/9/14
5-46 Instruments and Controls
Climate and Air Quality Auto Rear Defog Auto Collision Preparation Select and the following may be If equipped, this allows the Auto This feature will turn on or off the displayed: Rear Defog to be turned on or off. Forward Collision Alert feature as This feature will automatically turn well as the Automatic Braking . Auto Fan Max Speed on the rear window defogger when it capability of the Auto Collision . Air Quality Sensor is cold outside. Preparation feature. With the Alert . Auto Defog Select Off or On. and Brake setting, both Forward Collision Alert as well as the . Auto Rear Defog Collision/Detection Systems Automatic Braking capability of the Auto Fan Max Speed Select and the following may be Auto Collision Preparation feature displayed: are available. The Alert setting This feature will set the maximum disables most automatic braking auto fan speed. . Alert Type functions of the Auto Collision Select Low, Medium, or High. . Auto Collision Preparation Preparation feature. Some last-second automatic braking Air Quality Sensor . Go Notifier capability is still provided with the This feature may operate the . Side Blind Zone Alert Alert setting, but it is much less likely to be triggered by most driving recirculation mode automatically. . Rear Cross Traffic Alert conditions. Off disables all Forward Select Off, Low Sensitivity, or High Collision Alert and Automatic Sensitivity. Alert Type Braking capabilities of the Auto This feature allows the alert type to Collision Preparation feature. Auto Defog be changed for the Safety When set to On, the front defog will Alert Seat. Select Off, Alert and Brake, or Alert. automatically react to temperature Select Beeps or Safety Alert Seat. and humidity conditions that may cause fogging. Select Off or On. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (47,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-47
Go Notifier Auto Memory Recall Lighting This feature will give a reminder that This feature automatically recalls Select and the following may be Adaptive Cruise Control provides the current driver’s previously stored displayed: when it has brought the vehicle to a 1 or 2 button positions when . Vehicle Locator Lights complete stop behind another entering the vehicle. See Memory stopping vehicle, and then that Seats on page 3-7. . Exit Lighting vehicle drives on. Select Off, On - Driver Door Open, . Daytime Tail Lights Select Off or On. or On - At ignition On. Vehicle Locator Lights See Adaptive Cruise Control on Easy Exit Options This feature will flash the exterior page 9-39. This feature moves the seat lamps when K on the Remote Side Blind Zone Alert rearward allowing the driver more Keyless Entry (RKE) transmitter is Select Off or On. See Side Blind room to exit the vehicle. See pressed to locate the vehicle. Memory Seats on page 3-7. Zone Alert (SBZA) on page 9-54. Select Off or On. Select Off or On. Rear Cross Traffic Alert Exit Lighting Chime Volume Select Off or On. See Assistance This allows the selection of how Systems for Parking or Backing on This allows the selection of the long the exterior lamps stay on page 9-48. chime volume level. when leaving the vehicle when it is Comfort and Convenience Press + or − to adjust the volume. dark outside. Select and the following may be Select Off, 30 Seconds, displayed: 60 Seconds, or 120 Seconds. . Auto Memory Recall . Easy Exit Options . Chime Volume Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (48,1) 7707475) - 2015 - CRC - 10/9/14
5-48 Instruments and Controls
Daytime Tail Lights Delayed Door Lock Remote Lock Feedback This feature allows the taillamps to When on, this feature will delay the This allows selection of what type of be on during the day. locking of the doors. To override the feedback is given when locking the Select Off or On. delay, press the power door lock vehicle with the RKE transmitter. switch on the door. Select Off, Lights and Horn, Lights Power Door Locks Select Off or On. Only, or Horn Only. Select and the following may be displayed: Remote Lock, Unlock, Start Remote Door Unlock Select and the following may be This allows selection of which doors . Unlocked Door Anti Lock Out displayed: will unlock when pressing K on the . Auto Door Unlock . Remote Unlock Light Feedback RKE transmitter. . Delayed Door Lock . Remote Lock Feedback Select All Doors or Driver Door. Unlocked Door Anti Lock Out . Remote Door Unlock Remote Start Auto Cool Seats When on, this feature will keep the . Remote Start Auto Cool Seats If equipped and turned on, this driver door from locking when the feature will turn the ventilated seats door is open. If Off is selected, the . Remote Start Auto Heat Seats on when using remote start on Delayed Door Lock menu will be . Passive Door Unlock warm days. available. . Passive Door Lock Select Off or On. Select Off or On. . Remote Left in Vehicle Reminder Remote Start Auto Heat Seats Auto Door Unlock Remote Unlock Light Feedback If equipped and turned on, this This allows selection of which of the When on, the exterior lamps will feature will turn the heated seats on doors will automatically unlock when when using remote start on the vehicle is shifted into P (Park). flash when unlocking the vehicle with the RKE transmitter. cold days. Select Off, All Doors, or Driver Door. Select Off or Flash Lights. Select Off or On. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (49,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-49
Passive Door Unlock Bluetooth Voice Mail Numbers This allows the selection of what Select and the following may be This feature displays the voice mail doors will unlock when using the displayed: number for all connected phones. button on the driver door to unlock To change the voice mail number, . Pair New Device the vehicle. select EDIT or press the EDIT . Device Management Select All Doors or Driver Door. button. Type a new number, then . Ringtones select SAVE or press the SAVE Passive Door Lock button. . Voice Mail Numbers This feature can be turned on or off, Voice or can be used to select feedback Pair New Device Select and the following may be when using the button on the driver Select to pair a new device. See door to lock the vehicle. See displayed: “Pairing” in “Infotainment Controls” Remote Keyless Entry (RKE) . under “Bluetooth” in the infotainment Prompt Length System Operation on page 2-3. manual. . Audio Feedback Speed Select On, On with Horn Chirp, Device Management or Off. Prompt Length Select to connect to a different This feature adjusts the voice Remote Left in Vehicle Reminder phone source, disconnect a phone, prompt length. This feature sounds an alert when or delete a phone. Select Short or Long. the RKE transmitter is left in the Ringtones vehicle. Audio Feedback Speed Press to change the ring tone for Select Off or On. the specific phone. The phone does This feature adjusts the audio not need to be connected to change feedback speed. the ring. Select Slow, Medium, or Fast. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (50,1) 7707475) - 2015 - CRC - 10/9/14
5-50 Instruments and Controls
Display Rear Camera Restore Vehicle Settings Select and the following may be Select and the following may be This allows selection of restoring displayed: displayed: vehicle settings. . Theme . Guidance Lines Select Cancel or Restore. . Calibrate Touchscreen . Rear Park Assist Symbols Clear All Private Data . Turn Display Off Guidance Lines This allows selection to clear all private information from the vehicle. Theme Select to turn Off or On. See Select Cancel or Delete. Select to change the color, font, and Assistance Systems for Parking or Backing on page 9-48. art of the display. Restore Radio Settings Select Contemporary, Mainstreet, Rear Park Assist Symbols This allows selection to restore Edge, or Velocity. Select to turn Off or On. See radio settings. Calibrate Touchscreen Assistance Systems for Parking or Select Cancel or Restore. Backing on page 9-48. Select to calibrate the touchscreen, Software Information then follow the prompts. Return to Factory Settings Select to view the infotainment Turn Display Off Select and the following may be system current software information. displayed: Select to turn the display off. Press anywhere on the display area or any . Restore Vehicle Settings faceplate button to turn the . Clear All Private Data display on. . Restore Radio Settings Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (51,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-51
Universal Remote home automation devices. These To program a garage door opener, instructions refer to a garage door park outside directly in line with and System opener, but can be used for other facing the garage door opener devices. receiver. Clear all people and See Radio Frequency Statement on objects near the garage door. page 13-12. Do not use the Universal Remote system with any garage door opener Make sure the hand-held transmitter Universal Remote System that does not have the stop and has a new battery for quick and reverse feature. This includes any accurate transmission of the Programming garage door opener model radio-frequency signal. manufactured before April 1, 1982. Programming the Universal Read these instructions completely Remote System before programming the Universal Remote system. It may help to have For questions or help programming another person assist with the the Universal Remote system, call programming process. 1-800-355-3515 or see www.homelink.com. Keep the original hand-held transmitter for use in other vehicles Programming involves as well as for future programming. time-sensitive actions, and may time Erase the programming when out causing the procedure to be vehicle ownership is terminated. repeated. See “Erasing Universal Remote To program up to three devices: If equipped, these buttons are in the System Buttons” later in this section. 1. Hold the end of the hand-held overhead console. transmitter about 3 to 8 cm (1 to This system can replace up to three 3 in) away from the Universal remote control transmitters used to Remote system buttons with the activate devices such as garage indicator light in view. The door openers, security systems, and Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (52,1) 7707475) - 2015 - CRC - 10/9/14
5-52 Instruments and Controls
hand-held transmitter was button is pressed, then supplied by the manufacturer of programming is complete. the garage door opener receiver. There is no need to 2. At the same time, press and complete Steps 4–6. hold both the hand-held . If the indicator light does transmitter button and one of the not come on or the garage three Universal Remote system door does not move, a buttons to be used to operate second button press may the garage door. Do not release be required. For a second Learn or Smart Button either button until the indicator time, press and hold the light changes from a slow to a newly programmed button 4. After completing Steps 1–3 , rapid flash. Then release both for five seconds. If the light locate the Learn or Smart button buttons. stays on or the garage door inside the garage on the garage door opener receiver. The name Some garage door openers may moves, programming is and color of the button may vary require substitution of Step 2 complete. by manufacturer. with the procedure under in . If the indicator light blinks “Radio Signals for Canada and rapidly for two seconds, 5. Press and release the Learn or Some Gate Operators” later in then changes to a solid light Smart button. Step 6 must be this section. and the garage door does completed within 30 seconds of pressing this button. 3. Press and hold the newly not move, continue with programmed Universal Remote programming Steps 4–6. 6. Inside the vehicle, press and system button for five seconds hold the newly programmed while watching the indicator light Universal Remote system button and garage door activation. for two seconds and then release it. If the garage door . If the indicator light stays on does not move or the lamp on continuously or the garage the garage door opener receiver door moves when the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (53,1) 7707475) - 2015 - CRC - 10/9/14
Instruments and Controls 5-53
does not flash, press and hold enough for the Universal Remote Universal Remote System the same button a second time system to pick up the signal during for two seconds, then release it. programming. Operation Again, if the door does not move If the programming did not work, Using the Universal Remote or the garage door lamp does replace Step 2 under “Programming System not flash, press and hold the the Universal Remote System” with Press and hold the appropriate same button a third time for the following: two seconds, then release it. Universal Remote system button for Press and hold the Universal at least one-half second. The The Universal Remote system Remote system button while indicator light will come on while the should now activate the pressing and releasing the signal is being transmitted. garage door. hand-held transmitter button every Repeat the process for two seconds until the signal has Erasing Universal Remote programming the two remaining been successfully accepted by the System Buttons buttons. Universal Remote system. The Erase all programmed buttons when Universal Remote system indicator vehicle ownership is terminated. Radio Signals for Canada and light will flash slowly at first and then Some Gate Operators rapidly. Proceed with Step 3 under To erase: For questions or programming help “Programming the Universal Remote 1. Press and hold the two outside call 1-800-355-3515 or see System” to complete. buttons until the indicator light www.homelink.com. begins to flash. This should take about 10 seconds. Canadian radio-frequency laws and some U.S. gate operators require 2. Release both buttons. transmitter signals to time out or quit after several seconds of transmission. This may not be long Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (54,1) 7707475) - 2015 - CRC - 10/9/14
5-54 Instruments and Controls
Reprogramming a Single Universal Remote System Button To reprogram any of the system buttons: 1. Press and hold any one of the buttons. Do not release the button. 2. The indicator light will begin to flash after 20 seconds. Without releasing the button, proceed with Step 1 under “Programming the Universal Remote System.” Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
Lighting 6-1
Lighting Features Exterior Lighting Lighting Entry Lighting ...... 6-6 Exit Lighting ...... 6-7 Exterior Lamp Controls Exterior Lighting Battery Load Management . . . . 6-7 Battery Power Protection ...... 6-8 Exterior Lamp Controls ...... 6-1 Exterior Lamps Off Reminder ...... 6-2 Headlamp High/Low-Beam Changer ...... 6-2 Flash-to-Pass ...... 6-2 Daytime Running Lamps (DRL) ...... 6-2 Automatic Headlamp System ...... 6-3 The exterior lamp control is on the Adaptive Forward instrument panel on the outboard Lighting (AFL) ...... 6-3 side of the steering wheel. Hazard Warning Flashers . . . . . 6-4 Turn and Lane-Change Turn the control to the following Signals ...... 6-4 positions: Fog Lamps ...... 6-4 O (Off): Turns off the exterior Interior Lighting lamps. The knob returns to the Instrument Panel Illumination AUTO position after it is released. Control ...... 6-5 Turn to off again to reactivate the Dome Lamps ...... 6-5 AUTO mode. Reading Lamps ...... 6-6 AUTO (Automatic): Automatically Sun Visor Lamps ...... 6-6 turns the exterior lamps on and off, depending on outside lighting. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
6-2 Lighting
; (Parking Lamps): Turns on the If equipped with High Intensity parking lamps, together with the Discharge (HID) headlamps, the sidemarker lamps, taillamps, license dedicated DRL will come on when plate lamps, and instrument panel all of the following conditions lights. are met: 5 (Headlamps): Turns on the . The ignition is on. This indicator light turns on in the headlamps, together with the . The exterior lamps control is instrument cluster when the parking lamps, sidemarker lamps, in AUTO. taillamps, license plate lamps, and high-beam headlamps are on. instrument panel lights. . The light sensor determines it is Flash-to-Pass daytime. Exterior Lamps Off To flash the high beams, pull the . The parking brake is released or Reminder turn signal lever toward you, and the vehicle is not in P (Park). release. When the DRL are on, the taillamps, A warning chime sounds if the driver sidemarker lamps, instrument panel door is opened while the ignition is lights, and other lamps will not off and the exterior lamps are on. Daytime Running Lamps (DRL) be on. Headlamp High/ DRL can make it easier for others to The DRL turn off when the Low-Beam Changer see the front of your vehicle during headlamps are turned to O or the the day. Fully functional DRL are ignition is off. 2 3 (Headlamp High/Low-Beam required on all vehicles first sold in This vehicle may have a DRL Changer): Push the turn signal Canada. lever away from you and release, to disabling function. When the DRL turn the high beams on. To return to are on and a turn signal is activated, low beams, push the lever again or the DRL on that side will be off until pull it toward you and release. the turn signal goes off. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
Lighting 6-3
Automatic Headlamp If the vehicle is started in a dark in AUTO, the headlamps, parking garage, the automatic headlamp lamps, and other exterior lamps System system comes on immediately. If it come on. The transition time for the When the exterior lamp control is is light outside when the vehicle lamps coming on varies based on set to AUTO and it is dark enough leaves the garage, there is a slight wiper speed. When the wipers are outside, the headlamps come on delay before the automatic not operating, these lamps turn off. automatically. headlamp system changes to the Move the exterior lamp control to P DRL. During that delay, the or ; to disable this feature. instrument cluster may not be as bright as usual. Make sure the instrument panel brightness control Adaptive Forward is in the full bright position. See Lighting (AFL) Instrument Panel Illumination Control on page 6-5. The AFL pivots the headlamps horizontally to provide greater road When it is bright enough outside, illumination while turning. To enable the headlamps will turn off or may AFL, set the exterior lamp control to change to Daytime Running the AUTO position. Moving the There is a light sensor on top of the Lamps (DRL). switch out of the AUTO position instrument panel. Do not cover the deactivates the system. AFL sensor; otherwise the headlamps The automatic headlamp system turns off when the exterior lamp operates when the vehicle speed is will come on when they are not greater than 3 km/h (2 mph). AFL control is turned to O or the ignition needed. does not operate when the is off. The system may also turn on the transmission is in R (Reverse). AFL headlamps when driving through a Lights On with Wipers is not immediately operable after parking garage or tunnel. starting the vehicle; driving a short If the windshield wipers are distance is required to calibrate the activated in daylight with the engine AFL. See Exterior Lamp Controls on on, and the exterior lamp control is page 6-1. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
6-4 Lighting
Hazard Warning Flashers Turn and Lane-Change The turn and lane-change signal can be turned off manually by Signals moving the lever back to its original position. If after signaling a turn or lane change the arrow flashes rapidly or does not come on, a signal bulb might be burned out. Have any burned out bulbs replaced. If the bulb is not burned out, check the fuse. See Fuses and Circuit Breakers on page 10-35. Move the lever all the way up or down to signal a turn. Fog Lamps | (Hazard Warning Flashers): An arrow on the instrument cluster Press this button on the center flashes in the direction of the turn or stack above the audio system, to lane change. make the front and rear turn signal Raise or lower the lever until the lamps flash on and off. Press again arrow starts to flash to signal a lane to turn the flashers off. change. Hold it there until the lane The hazard warning flashers turn on change is completed. If the lever is automatically if the airbags deploy. briefly pressed and released, the turn signal flashes three times. If equipped with fog lamps, the button is on the exterior lamp control, left of the steering wheel. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (5,1) 7707475) - 2015 - CRC - 10/9/14
Lighting 6-5
To turn on the fog lamps, the ignition Interior Lighting Dome Lamps and the headlamps or parking lamps must be on. Instrument Panel If the fog lamps are turned on while the exterior lamp control is in the Illumination Control AUTO position, the headlamps come on automatically. # (Fog Lamps): Press to turn on or off. An indicator light on the instrument cluster comes on when the fog lamps are on. Some localities have laws that require the headlamps to be on along with the fog lamps. The brightness of the instrument The interior lamps control in the panel lighting and steering wheel overhead console controls both the controls can be adjusted. front and rear interior lamps. D (Instrument Panel To operate: Illumination): Move and hold the ( (Off): Turns the lamps off. thumbwheel up or down to brighten H (Door): Turns the lamps on or dim the lights. when any door is opened. ' (On): Keeps the lamps on all the time. The interior lamps turn on automatically if the airbags are deployed. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (6,1) 7707475) - 2015 - CRC - 10/9/14
6-6 Lighting
Reading Lamps Lighting Features There are front and rear reading lamps. Entry Lighting The headlamps, taillamps, license plate lamps, back-up lamps, dome lamps, and most of the interior lights turn on briefly when the Remote Keyless Entry (RKE) transmitter K The rear reading lamps are in the button is pressed. See Ignition headliner. Positions (Key Access) on # or $ (Reading Lamps): Press page 9-15 or Ignition Positions to turn each lamp on or off. (Keyless Access) on page 9-16. After about 30 seconds the exterior Sun Visor Lamps lamps turn off, then the dome lamps and remaining interior lights dim to This lamp turns on when the cover off. Entry lighting can be disabled The front reading lamps are in the is opened. manually by changing the ignition overhead console. out of the OFF position, or by pressing the RKE transmitter Q button. This feature can be changed. See Vehicle Personalization on page 5-45. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (7,1) 7707475) - 2015 - CRC - 10/9/14
Lighting 6-7
Exit Lighting Battery Load enough at idle to produce all of the power needed for very high The headlamps, taillamps, back-up Management electrical loads. lamps, parking lamps, and license The vehicle has Electric Power A high electrical load occurs when plate lamps come on at night, or in Management (EPM) that estimates areas with limited lighting, when the several of the following are on, such the battery's temperature and state as: headlamps, high beams, fog key is removed from the ignition. of charge. It then adjusts the voltage The dome lamps also come on lamps, rear window defogger, for best performance and extended climate control fan at high speed, when the key is removed from the life of the battery. ignition. The exterior lamps and heated seats, engine cooling fans, dome lamps remain on after the When the battery's state of charge trailer loads, and loads plugged into door is closed for a set amount of is low, the voltage is raised slightly accessory power outlets. time, then automatically turn off. to quickly bring the charge back up. EPM works to prevent excessive When the state of charge is high, If equipped with Keyless Access, discharge of the battery. It does this the voltage is lowered slightly to by balancing the generator's output the exterior lamps and dome lamps prevent overcharging. If the vehicle automatically turn on when the and the vehicle's electrical needs. has a voltmeter gauge or a voltage It can increase engine idle speed to driver door is opened after the display on the Driver Information ignition is turned off. See Ignition generate more power whenever Center (DIC), you may see the needed. It can temporarily reduce Positions (Key Access) on voltage move up or down. This is page 9-15 or Ignition Positions the power demands of some normal. If there is a problem, an accessories. (Keyless Access) on page 9-16. alert will be displayed. The exterior lamps turn off Normally, these actions occur in The battery can be discharged at steps or levels, without being immediately by turning the exterior idle if the electrical loads are very lamp control off. noticeable. In rare cases at the high. This is true for all vehicles. highest levels of corrective action, This feature can be changed. See This is because the generator this action may be noticeable to the Vehicle Personalization on (alternator) may not be spinning fast driver. If so, a DIC message might page 5-45. be displayed and it is recommended Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (8,1) 7707475) - 2015 - CRC - 10/9/14
6-8 Lighting
that the driver reduce the electrical loads as much as possible. See Battery Voltage and Charging Messages on page 5-35. Battery Power Protection The battery saver feature is designed to protect the vehicle's battery. If the exterior lamps or any interior light is left on and the ignition is turned off, the battery rundown protection system automatically turns the lamp off after about 10 minutes. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
Infotainment System 7-1
Infotainment Introduction System Infotainment See the infotainment manual for Introduction information on the radio, audio Infotainment ...... 7-1 players, phone, navigation system, Rear Seat Entertainment (RSE), and voice or speech recognition. It also includes information on settings. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
7-2 Infotainment System
2 NOTES Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
Climate Controls 8-1
Climate Controls Climate Control Systems
Climate Control Systems Dual Automatic Climate Control System Dual Automatic Climate Control The heating, cooling, and ventilation for the vehicle can be controlled with System ...... 8-1 this system. Air Vents Air Vents ...... 8-6 Maintenance Air Intake ...... 8-6 Passenger Compartment Air Filter ...... 8-6 Service ...... 8-7
1. Driver and Passenger 2. Heated and Ventilated Front Temperature Controls Seats (If Equipped) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
8-2 Climate Controls
3. Fan Control . Extreme temperature settings, conditioning setting is adjusted, the such as 15°C (60°F) or 32°C 4. Air Delivery Mode Controls AUTO indicator turns off and the (90°F). selected settings will appear on the 5. Defrost . High fan speed settings. display. 6. SYNC (Synchronized To help reduce fuel usage: To place the system in automatic Temperature) mode do the following: . Use the full automatic control as 7. Power described under “Automatic 1. Press AUTO. 8. A/C (Comfort and Eco Air Operation.” 2. Set the temperature. Allow the Conditioning) . Select a temperature setting that system time to stabilize. Adjust 9. Recirculation is higher in hot weather and the temperature as needed for lower in cold weather. best comfort. 10. Rear Window Defogger . Turn off the air conditioning To improve fuel efficiency and to 11. AUTO (Automatic Operation) when it is not needed. cool the vehicle faster, recirculation may be automatically selected in Climate Control Influence on . Only use defrost to clear the warm weather. The recirculation eAssist Operation and Fuel windows. Economy (If Equipped) light will not come on. Press @ to Automatic Operation The climate control system depends select recirculation; press it again to on other vehicle systems for heat The system automatically controls select outside air. and power input. Certain climate the fan speed, air delivery, air Q / R (Driver and Passenger control settings can lead to higher conditioning, and recirculation in Temperature Controls): The fuel usage and/or fewer auto stops. order to heat or cool the vehicle to temperature can be adjusted the desired temperature. The following are climate control separately for the driver and the settings that use more fuel: When the AUTO indicator light is passenger. Press to increase or on, the system is in full automatic decrease the temperature. . Comfort air conditioning mode. operation. If the air delivery mode, . The defrost mode. fan speed, recirculation, or air Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
Climate Controls 8-3
SYNC (Synchronized the direction of the airflow is A/C (Comfort Air Conditioning): Temperature): Press to link all controlled manually. Press AUTO to Press to turn the air conditioning climate zone settings to the driver return to automatic operation. system on or off. If the climate settings. The SYNC indicator light To change the current mode, select control system is turned off or the will turn on. When the passenger one of the following: outside temperature falls below settings are adjusted, the SYNC freezing, the air conditioner will indicator light is off. - (Defog): Clears the windows of not run. fog or moisture. Air is directed to the Manual Operation windshield and floor outlets. Pressing this button cancels O automatic air conditioning and turns (Power): Press to turn the fan off Y (Vent): Air is directed to the off the air conditioner. Press AUTO or on. instrument panel outlets. to return to automatic operation and Q 9 R (Fan Control): Press to [ (Floor): Air is directed to the the air conditioner runs increase or decrease the fan speed. floor outlets. automatically as needed. When the The fan speed setting appears on indicator light is on, the air the main display. Pressing either 0 MAX (Defrost): Clears the conditioner runs automatically to button cancels automatic fan control windshield of fog or frost more cool the air inside the vehicle or to and the fan is controlled manually. quickly. Air is directed to the dry the air needed to defog the Press AUTO to return to automatic windshield. windshield faster. operation. For best results, clear all snow and For eAssist vehicles, an auto stop Air Delivery Mode Controls: ice from the windshield before may occur if the climate control defrosting. Press -, Y, or [ to change the system determines the a/c direction of the airflow. The current For eAssist vehicles that have the compressor can be shut off and still mode appears in the display screen. auto defog feature, auto stops can maintain comfort levels with minimal Pressing either button cancels occur in defrost mode. In this mode, windshield fogging. automatic air delivery control and the auto stops are shorter and less Eco A/C (For eAssist Vehicles): frequent than other air delivery Press to cycle between the off, eco modes to prevent window fogging. and comfort air conditioning modes. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
8-4 Climate Controls
The indicator will be lit green in eco, @ (Recirculation): Press to turn system does not detect possible amber in comfort, and turns off on recirculation. An indicator light window fogging, it returns to normal when there is no A/C function. If the comes on. Air is recirculated to operation. For eAssist vehicles, fan is turned off the A/C will not run. quickly cool the air inside the there may be shorter and less The eco A/C setting balances fuel vehicle or prevent odors from frequent auto stops when auto economy and air conditioning entering. Press again to change to defog is in use. comfort. In warm weather outside air and the indicator light To turn Auto Defog off or on, see conditions, auto stops may occur turns off. “Climate and Air Quality” under more frequently and the vehicle Press AUTO to return to automatic Vehicle Personalization on interior may be warmer as operation and recirculation runs page 5-45. compared to the comfort air automatically as needed. The Rear Window Defogger conditioning. This setting allows indicator light is off. higher humidity inside the vehicle = (Rear Window Defogger): and window fogging before the The Air Quality Sensor may operate Press to turn the rear window engine restarts. the recirculation mode automatically. defogger on or off. An indicator light See “Climate and Air Quality” under on the button comes on to show that Pressing the 0 button during an Vehicle Personalization on the rear window defogger is on. auto stop may restart the engine to page 5-45. The defogger can be turned off by prevent window fogging. To reach Auto Defog: The climate control comfort levels quickly during an turning the ignition to ACC/ system may have a sensor to ACCESSORY or LOCK/OFF. auto stop, the engine will restart if automatically detect high humidity the air conditioner is off and AUTO inside the vehicle. When high The rear window defogger can be or A/C is selected. humidity is detected, the climate set to automatic operation. See If temperature controls are adjusted control system may adjust to “Climate and Air Quality” under cooler by more than 1°C (1°F) outside air supply and turn on the Vehicle Personalization on during an auto stop, the engine will air conditioner. The fan speed may page 5-45. When auto rear defog is restart to ensure that comfort is slightly increase to help prevent selected, the rear window defogger reached. fogging. If the climate control turns on automatically when the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (5,1) 7707475) - 2015 - CRC - 10/9/14
Climate Controls 8-5
interior temperature is cold and the rear defog may come on during outside temperature is about 4°C Caution (Continued) remote start based on cold ambient (40°F) and below. The auto rear conditions. If the vehicle has heated defogger turns off automatically damage the rear window or ventilated seats, they may come after about 10 minutes, or after defogger grid and affect the on during a remote start. See five minutes if the outside radio's ability to pick up stations Remote Vehicle Start on page 2-9 temperature is not as cold. clearly. The repairs would not be and Heated and Ventilated Front covered by the vehicle warranty. For eAssist vehicles, auto rear Seats on page 3-9. defog will only run during a remote Sensor start and the feature is not available Heated and Ventilated Front Seats in the Vehicle Personalization menu. (If Equipped): Press M or L to The solar sensor, on top of the instrument panel near the heat the driver or passenger seat If the vehicle is equipped with windshield, monitors the solar heat. heated outside rearview mirrors, cushion and seatback. The climate control system uses the they turn on when the rear window Press C or {, if equipped, to defogger button is on and help to sensor information to adjust the ventilate the driver or passenger clear fog or frost from the surface of temperature, fan speed, seat. SeeHeated and Ventilated the mirror. See Heated Mirrors on recirculation, and air delivery mode Front Seats on page 3-9. page 2-19. for best comfort. Remote Start Climate Control Do not cover the sensor; otherwise { Caution Operation (If Equipped): If the the automatic climate control system vehicle is equipped with the remote may not work properly. Do not try to clear frost or other start feature, the climate control material from the inside of the system may run when the vehicle is front windshield and rear window started remotely. The system uses with a razor blade or anything the driver’s previous settings to heat else that is sharp. This may or cool the inside of the vehicle. The (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (6,1) 7707475) - 2015 - CRC - 10/9/14
8-6 Climate Controls
Air Vents Operation Tips Maintenance . Keep all outlets open whenever Use the louvers on the air vents to possible for best system change the direction of the airflow. Air Intake performance. To open the vent, move the Clear away any ice, snow, or leaves . Keep the path under all seats thumbwheel to t. To close the vent, from the air intake at the base of the clear of objects to help circulate windshield that can block the flow of move the thumbwheel to l. the air inside the vehicle more air into the vehicle. effectively. For vehicles with eAssist, there is a battery cooling air vent on the shelf . Use of non-GM approved hood Passenger Compartment behind the rear passenger seats deflectors can adversely affect Air Filter below the rear window. Keep this air the performance of the system. inlet clear from items that may block The filter removes dust, pollen, and airflow. Proper airflow is required to other airborne irritants from outside keep the eAssist battery and control air that is pulled into the vehicle. system cool. The filter should be replaced as part of routine scheduled maintenance. See Maintenance Schedule on page 11-2 for replacement intervals. For more information, see your dealer. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (7,1) 7707475) - 2015 - CRC - 10/9/14
Climate Controls 8-7
Service The refrigerant system should only be serviced by trained and certified technicians. The air conditioning evaporator should never be repaired or replaced by one from a salvage vehicle. It should only be replaced by a new evaporator to ensure proper and safe operation. During service, all refrigerants should be reclaimed with proper equipment. Venting refrigerants directly to the atmosphere is harmful to the environment and may also create unsafe conditions based on inhalation, combustion, frostbite, or other health-based concerns. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (8,1) 7707475) - 2015 - CRC - 10/9/14
8-8 Climate Controls
2 NOTES Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-1
Retained Accessory Ride Control Systems Driving and Power (RAP) ...... 9-23 Traction Control/Electronic Operating Shifting Into Park ...... 9-24 Stability Control ...... 9-34 Shifting out of Park ...... 9-25 Limited-Slip Differential ...... 9-36 Parking over Things Selective Ride Control ...... 9-36 That Burn ...... 9-25 Driving Information Cruise Control Distracted Driving ...... 9-2 Engine Exhaust Cruise Control ...... 9-37 Defensive Driving ...... 9-3 Engine Exhaust ...... 9-26 Adaptive Cruise Control . . . . . 9-39 Drunk Driving ...... 9-3 Running the Vehicle While Control of a Vehicle ...... 9-3 Parked ...... 9-26 Driver Assistance Systems Braking ...... 9-3 Driver Assistance Steering ...... 9-4 Automatic Transmission Systems ...... 9-47 Off-Road Recovery ...... 9-5 Automatic Transmission . . . . . 9-27 Assistance Systems for Loss of Control ...... 9-6 Manual Mode ...... 9-29 Parking or Backing ...... 9-48 Driving on Wet Roads ...... 9-6 Assistance Systems for Hill and Mountain Roads ...... 9-7 Drive Systems Driving ...... 9-50 Winter Driving ...... 9-8 All-Wheel Drive ...... 9-30 Forward Collision Alert (FCA) If the Vehicle Is Stuck ...... 9-9 Brakes System ...... 9-50 Vehicle Load Limits ...... 9-10 Antilock Brake Active Emergency Braking Starting and Operating System (ABS) ...... 9-30 System ...... 9-53 Parking Brake ...... 9-31 Side Blind Zone New Vehicle Break-In ...... 9-14 Alert (SBZA) ...... 9-54 Ignition Positions (Key Brake Assist ...... 9-33 Hill Start Assist (HSA) ...... 9-33 Lane Change Alert ...... 9-55 Access) ...... 9-15 Lane Departure Ignition Positions (Keyless Warning (LDW) ...... 9-57 Access) ...... 9-16 Starting the Engine ...... 9-18 Engine Heater ...... 9-22 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
9-2 Driving and Operating
Fuel Driving Information . Designate a front seat Fuel ...... 9-58 passenger to handle potential distractions. California Fuel Distracted Driving Requirements ...... 9-59 . Become familiar with vehicle Fuels in Foreign Countries . . . 9-60 Distraction comes in many forms features before driving, such as Fuel Additives ...... 9-60 and can take your focus from the programming favorite radio E85 or FlexFuel ...... 9-60 task of driving. Exercise good stations and adjusting climate Filling the Tank ...... 9-61 judgment and do not let other control and seat settings. Filling a Portable Fuel activities divert your attention away Program all trip information into Container ...... 9-62 from the road. Many local any navigation device prior to Trailer Towing governments have enacted laws driving. regarding driver distraction. Become General Towing . Wait until the vehicle is parked familiar with the local laws in Information ...... 9-63 to retrieve items that have fallen your area. Driving Characteristics and to the floor. To avoid distracted driving, always Towing Tips ...... 9-63 . Stop or park the vehicle to tend keep your eyes on the road, hands Trailer Towing (Except to children. eAssist) ...... 9-66 on the wheel, and mind on the drive. . Keep pets in an appropriate Trailer Towing (eAssist) ...... 9-67 . Do not use a phone in carrier or restraint. Towing Equipment ...... 9-67 demanding driving situations. Conversions and Add-Ons Use a hands-free method to . Avoid stressful conversations Add-On Electrical place or receive necessary while driving, whether with a Equipment ...... 9-68 phone calls. passenger or on a cell phone. . Watch the road. Do not read, take notes, or look up information on phones or other electronic devices. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-3
. Allow enough following distance Control of a Vehicle { Warning between you and the driver in front of you. Braking, steering, and accelerating Taking your eyes off the road too are important factors in helping to . Focus on the task of driving. long or too often could cause a control a vehicle while driving. crash resulting in injury or death. Drunk Driving Focus your attention on driving. Braking Death and injury associated with Braking action involves perception drinking and driving is a global Refer to the infotainment manual for time and reaction time. Deciding to tragedy. more information on using that push the brake pedal is perception system, including pairing and using time. Actually doing it is a cell phone { Warning reaction time. Defensive Driving Drinking and then driving is very Average driver reaction time is dangerous. Your reflexes, about three-quarters of a second. In Defensive driving means “always perceptions, attentiveness, and that time, a vehicle moving at expect the unexpected.” The first judgment can be affected by even 100 km/h (60 mph) travels 20 m step in driving defensively is to wear a small amount of alcohol. You (66 ft), which could be a lot of distance in an emergency. the safety belt. See Safety Belts on can have a serious — or even page 3-12. fatal — collision if you drive after Helpful braking tips to keep in mind . Assume that other road users drinking. include: (pedestrians, bicyclists, and Do not drink and drive or ride with . Keep enough distance between other drivers) are going to be a driver who has been drinking. you and the vehicle in front careless and make mistakes. Ride home in a cab; or if you are of you. Anticipate what they might do and be ready. with a group, designate a driver . Avoid needless heavy braking. who will not drink. . Keep pace with traffic. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
9-4 Driving and Operating
If the engine ever stops while the If the steering wheel is turned until it increases to provide a sport-like feel vehicle is being driven, brake reaches the end of its travel and is to the steering. This provides normally but do not pump the held against that position for an maximum control and stability. brakes. Doing so could make the extended period of time, power If the vehicle seems harder to steer pedal harder to push down. If the steering assist may be reduced. than normal when parking or driving engine stops, there will be some If the steering assist is used for an slowly, there may be a problem with power brake assist but it will be extended period of time, power the system. You will still have power used when the brake is applied. assist may be reduced. steering, but steering will be stiffer Once the power assist is used up, it Normal use of the power steering than normal at slow speeds. See can take longer to stop and the your dealer for service. brake pedal will be harder to push. assist should return when the system cools down. Hydraulic Power Steering Steering See specific vehicle steering If the vehicle has hydraulic power messages under Vehicle Messages Electric Power Steering steering, it may require on page 5-35. maintenance. See Power Steering If the vehicle has electric power Variable Effort Steering Fluid (2.4L L4 Engine and 3.6L steering it does not have power V6 Engine with FWD) on steering fluid. Regular maintenance Some vehicles have a steering page 10-23 or Power Steering Fluid is not required. system that varies the amount of (3.6L V6 Engine with AWD) on If power steering assist is lost due effort required to steer the vehicle in page 10-23. relation to the speed of the vehicle. to a system malfunction, the vehicle If power steering assist is lost can be steered, but may require The amount of steering effort because the engine stops or a increased effort. required is less at slower speeds to system malfunction, the vehicle can See your dealer if there is a make the vehicle more be steered but may require problem. maneuverable and easier to park. At increased effort. See your dealer if faster speeds, the steering effort there is a problem. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (5,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-5
. Maintain a reasonable steady Off-Road Recovery { Caution speed through the curve . If the steering wheel is turned Wait until the vehicle is out of the curve before accelerating until it reaches the end of its gently into the straightaway. travel, and is held in that position for more than 15 seconds, Steering in Emergencies damage may occur to the power . There are some situations when steering system and there may be steering around a problem may loss of power steering assist. be more effective than braking. . Holding both sides of the Curve Tips steering wheel allows you to turn . Take curves at a reasonable 180 degrees without removing speed. a hand. . The vehicle's right wheels can drop . Reduce speed before entering a Antilock Brake System (ABS) curve. allows steering while braking. off the edge of a road onto the shoulder while driving. Follow these tips: 1. Ease off the accelerator and then, if there is nothing in the way, steer the vehicle so that it straddles the edge of the pavement. 2. Turn the steering wheel about one-eighth of a turn, until the right front tire contacts the pavement edge. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (6,1) 7707475) - 2015 - CRC - 10/9/14
9-6 Driving and Operating
3. Turn the steering wheel to go If the vehicle starts to slide, follow Remember: Antilock brakes help straight down the roadway. these suggestions: avoid only the braking skid. . Ease your foot off the Loss of Control accelerator pedal and steer the Driving on Wet Roads Skidding way you want the vehicle to go. Rain and wet roads can reduce The vehicle may straighten out. vehicle traction and affect your There are three types of skids that Be ready for a second skid if it ability to stop and accelerate. correspond to the vehicle's three occurs. Always drive slower in these types control systems: . Slow down and adjust your of driving conditions and avoid . Braking Skid — wheels are not driving according to weather driving through large puddles and rolling. conditions. Stopping distance deep‐standing or flowing water. . Steering or Cornering Skid — can be longer and vehicle too much speed or steering in a control can be affected when { Warning curve causes tires to slip and traction is reduced by water, lose cornering force. snow, ice, gravel, or other Wet brakes can cause crashes. material on the road. Learn to They might not work as well in a . Acceleration Skid — too much recognize warning clues — such quick stop and could cause throttle causes the driving as enough water, ice, or packed pulling to one side. You could wheels to spin. snow on the road to make a lose control of the vehicle. Defensive drivers avoid most skids mirrored surface — and slow down when you have any doubt. After driving through a large by taking reasonable care suited to puddle of water or a car/vehicle existing conditions, and by not . Try to avoid sudden steering, wash, lightly apply the brake overdriving those conditions. But acceleration, or braking, pedal until the brakes work skids are always possible. including reducing vehicle speed normally. by shifting to a lower gear. Any sudden changes could cause (Continued) the tires to slide. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (7,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-7
Other Rainy Weather Tips . Shift to a lower gear when going Warning (Continued) down steep or long hills. Besides slowing down, other wet Flowing or rushing water creates weather driving tips include: { Warning strong forces. Driving through . Allow extra following distance. flowing water could cause the Using the brakes to slow the . Pass with caution. vehicle to be carried away. If this vehicle on a long downhill slope happens, you and other vehicle . Keep windshield wiping can cause brake overheating, can occupants could drown. Do not equipment in good shape. reduce brake performance, and ignore police warnings and be . Keep the windshield washer fluid could result in a loss of braking. very cautious about trying to drive reservoir filled. Shift the transmission to a lower through flowing water. gear to let the engine assist the . Have good tires with proper tread depth. See Tires on brakes on a steep downhill slope. Hydroplaning page 10-42. Hydroplaning is dangerous. Water . Turn off cruise control. can build up under the vehicle's { Warning tires so they actually ride on the Hill and Mountain Roads water. This can happen if the road is Coasting downhill in N (Neutral) wet enough and you are going fast Driving on steep hills or through or with the ignition off is enough. When the vehicle is mountains is different than driving dangerous. This can cause hydroplaning, it has little or no on flat or rolling terrain. Tips for overheating of the brakes and contact with the road. driving in these conditions include: loss of steering. Always have the There is no hard and fast rule about . Keep the vehicle serviced and in engine running and the vehicle hydroplaning. The best advice is to good shape. in gear. slow down when the road is wet. . Check all fluid levels and brakes, tires, cooling system, and transmission. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (8,1) 7707475) - 2015 - CRC - 10/9/14
9-8 Driving and Operating
. Stay in your own lane. Do not Drive with caution, whatever the Turn off cruise control on slippery swing wide or cut across the condition. Accelerate gently so surfaces. center of the road. Drive at traction is not lost. Accelerating too speeds that let you stay in your quickly causes the wheels to spin Blizzard Conditions own lane. and makes the surface under the Being stuck in snow can be a . Be alert on top of hills; tires slick, so there is even less serious situation. Stay with the something could be in your lane traction. vehicle unless there is help nearby. (stalled car, accident). Traction Control should be turned If possible, use Roadside Assistance. See Roadside . Pay attention to special road on. See Traction Control/Electronic Assistance Program on page 13-5. signs (falling rocks area, winding Stability Control on page 9-34. To get help and keep everyone in roads, long grades, passing or The Antilock Brake System (ABS) the vehicle safe: no-passing zones) and take improves vehicle stability during appropriate action. hard stops on slippery roads, but . Turn on the hazard warning apply the brakes sooner than when flashers. Winter Driving on dry pavement. See Antilock . Tie a red cloth to an outside Brake System (ABS) on page 9-30. mirror. Driving on Snow or Ice Allow greater following distance on Drive carefully when there is snow any slippery road and watch for { Warning or ice between the tires and the slippery spots. Icy patches can road, creating less traction or grip. occur on otherwise clear roads in Snow can trap engine exhaust Wet ice can occur at about 0°C (32° shaded areas. The surface of a under the vehicle. This may F) when freezing rain begins to fall, curve or an overpass can remain icy cause exhaust gases to get resulting in even less traction. Avoid when the surrounding roads are inside. Engine exhaust contains driving on wet ice or in freezing rain clear. Avoid sudden steering carbon monoxide (CO) which until roads can be treated with salt maneuvers and braking while (Continued) or sand. on ice. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (9,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-9
If the Vehicle Is Stuck Warning (Continued) Warning (Continued) Slowly and cautiously spin the cannot be seen or smelled. It can vehicle and set the fan speed wheels to free the vehicle when cause unconsciousness and even to the highest setting. See stuck in sand, mud, ice, or snow. death. “Climate Control Systems.” If stuck too severely for the traction If the vehicle is stuck in the snow: For more information about system to free the vehicle, turn the carbon monoxide, see Engine traction system off and use the . Clear away snow from around Exhaust on page 9-26. rocking method. See Traction the base of your vehicle, Control/Electronic Stability Control especially any that is blocking on page 9-34. the exhaust pipe. To save fuel, run the engine for only short periods as needed to warm . Check again from time to { Warning time to be sure snow does the vehicle and then shut the engine not collect there. off and close the window most of the way to save heat. Repeat this If the vehicle's tires spin at high . Open a window about 5 cm until help arrives but only when you speed, they can explode, and you (2 in) on the side of the feel really uncomfortable from the or others could be injured. The vehicle that is away from the cold. Moving about to keep warm vehicle can overheat, causing an wind to bring in fresh air. also helps. engine compartment fire or other damage. Spin the wheels as little . Fully open the air outlets on If it takes some time for help to as possible and avoid going or under the instrument arrive, now and then when you run panel. the engine, push the accelerator above 56 km/h (35 mph). . Adjust the climate control pedal slightly so the engine runs system to a setting that faster than the idle speed. This circulates the air inside the keeps the battery charged to restart the vehicle and to signal for help (Continued) with the headlamps. Do this as little as possible to save fuel. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (10,1) 7707475) - 2015 - CRC - 10/9/14
9-10 Driving and Operating
Rocking the Vehicle to Get Vehicle Load Limits it Out { Warning It is very important to know how Turn the steering wheel left and much weight the vehicle can Do not load the vehicle any right to clear the area around the carry. This weight is called the heavier than the Gross front wheels. Turn off any traction vehicle capacity weight and Vehicle Weight Rating system. Shift back and forth (GVWR), or either the between R (Reverse) and a low includes the weight of all occupants, cargo, and all maximum front or rear Gross forward gear, spinning the wheels Axle Weight Rating (GAWR). as little as possible. To prevent nonfactory-installed options. transmission wear, wait until the Two labels on the vehicle show This can cause systems to wheels stop spinning before shifting how much weight it may break and change the way the gears. Release the accelerator properly carry, the Tire and vehicle handles. This could pedal while shifting, and press Loading Information label and cause loss of control and a lightly on the accelerator pedal the Certification label. crash. Overloading can also when the transmission is in gear. shorten the life of the vehicle. Slowly spinning the wheels in the forward and reverse directions causes a rocking motion that could free the vehicle. If that does not get the vehicle out after a few tries, it might need to be towed out. If the vehicle does need to be towed out, see Towing the Vehicle on page 10-82. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (11,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-11
Tire and Loading Information pillar (B-pillar). The Tire and “Steps for Determining Correct Label Loading Information label shows Load Limit– the number of occupant seating 1. Locate the statement "The positions (1), and the maximum combined weight of vehicle capacity weight (2) in occupants and cargo should kilograms and pounds. never exceed XXX kg or The Tire and Loading XXX lbs." on your vehicle’s Information label also shows the placard. tire size of the original 2. Determine the combined equipment tires (3) and the weight of the driver and recommended cold tire inflation passengers that will be riding pressures (4). For more in your vehicle. information on tires and inflation Label Example see Tires on page 10-42 and 3. Subtract the combined Tire Pressure on page 10-50. weight of the driver and 1. Number of Occupant Seating passengers from XXX kg or There is also important loading Positions XXX lbs. 2. Maximum Vehicle Capacity information on the Certification Weight label. It tells you the Gross 4. The resulting figure equals 3. Size of the Original Vehicle Weight Rating (GVWR) the available amount of cargo Equipment Tires and the Gross Axle Weight and luggage load capacity. 4. Recommended Cold Tire Rating (GAWR) for the front and For example, if the "XXX" Inflation Pressure rear axle. See “Certification amount equals 1400 lbs. and there will be five 150 lb A vehicle-specific Tire and Label” later in this section. passengers in your vehicle, Loading Information label is the amount of available cargo attached to the vehicle's center Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (12,1) 7707475) - 2015 - CRC - 10/9/14
9-12 Driving and Operating
and luggage load capacity is 650 lbs. (1400-750 (5 x 150) = 650 lbs.) 5. Determine the combined weight of luggage and cargo being loaded on the vehicle. That weight may not safely exceed the available cargo and luggage load capacity calculated in Step 4.
6. If your vehicle will be towing Example 1 Example 2 a trailer, load from your trailer will be transferred to your 1. Vehicle Capacity Weight 1. Vehicle Capacity Weight vehicle. Consult this manual for Example 1 = 453 kg for Example 2 = 453 kg to determine how this (1,000 lbs). (1,000 lbs). reduces the available cargo 2. Subtract Occupant Weight 2. Subtract Occupant Weight and luggage load capacity of @ 68 kg (150 lbs) × 2 = @ 68 kg (150 lbs) × 5 = your vehicle.” 136 kg (300 lbs). 340 kg (750 lbs). See Trailer Towing (Except 3. Available Occupant and 3. Available Cargo Weight = eAssist) on page 9-66 or Trailer Cargo Weight = 317 kg 113 kg (250 lbs). Towing (eAssist) on page 9-67 (700 lbs). for important information on towing a trailer, towing safety rules, and trailering tips. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (13,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-13
seating positions. The combined fuel, and cargo. Never exceed weight of the driver, passengers, the GVWR for the vehicle, or the and cargo should never exceed Gross Axle Weight Rating the vehicle's capacity weight. (GAWR) for either the front or rear axle. Certification Label And, if there is a heavy load, it should be spread out. See “Steps for Determining Correct Load Limit” earlier in this section.
Example 3 { Warning 1. Vehicle Capacity Weight Do not load the vehicle any for Example 3 = 453 kg heavier than the Gross (1,000 lbs). Vehicle Weight Rating 2. Subtract Occupant Weight (GVWR), or either the @ 91 kg (200 lbs) × 5 = Label Example maximum front or rear Gross 453 kg (1,000 lbs). A vehicle-specific Certification Axle Weight Rating (GAWR). 3. Available Cargo Weight = label is attached to the vehicle's This can cause systems to 0 kg (0 lbs). center pillar (B-pillar). The label break and change the way the Refer to the vehicle's Tire and tells the gross weight capacity of vehicle handles. This could Loading Information label for the vehicle, called the Gross cause loss of control and a specific information about the Vehicle Weight Rating (GVWR). crash. Overloading can also vehicle's capacity weight and The GVWR includes the weight shorten the life of the vehicle. of the vehicle, all occupants, Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (14,1) 7707475) - 2015 - CRC - 10/9/14
9-14 Driving and Operating
If you put things inside the Warning (Continued) Starting and vehicle — like suitcases, tools, Operating packages, or anything . Never stack heavier else — they will go as fast as the things, like suitcases, New Vehicle Break-In vehicle goes. If you have to stop inside the vehicle so that or turn quickly, or if there is a some of them are above { Caution crash, they will keep going. the tops of the seats.
. The vehicle does not need an { Warning Do not leave an unsecured child restraint elaborate break-in. But it will Things inside the vehicle can in the vehicle. perform better in the long run if you follow these guidelines: strike and injure people in a . Secure loose items in the . sudden stop or turn, or in a vehicle. Do not drive at any one crash. constant speed, fast or slow, . Do not leave a seat folded for the first 805 km (500 mi). . Put things in the cargo down unless needed. Do not make full-throttle area of the vehicle. In the starts. Avoid downshifting to cargo area, put them as brake or slow the vehicle. far forward as possible. . Avoid making hard stops for Try to spread the weight the first 322 km (200 mi) or evenly. so. During this time the new (Continued) brake linings are not yet broken in. Hard stops with new linings can mean premature wear and earlier replacement. Follow this (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (15,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-15
This is the only position from which Caution (Continued) { Caution the key can be removed. This locks the ignition and automatic breaking-in guideline every Using a tool to force the key to transmission. time you get new brake turn in the ignition could cause linings. damage to the switch or break the Do not turn the engine off when the key. Use the correct key, make vehicle is moving. This will cause a Following break-in, engine speed loss of power assist in the brake and load can be gradually sure it is all the way in, and turn it only with your hand. If the key and steering systems and disable increased. the airbags. cannot be turned by hand, see your dealer. If the vehicle must be shut off in an Ignition Positions (Key emergency: Access) The key must be fully extended to 1. Brake using a firm and steady start the vehicle. pressure. Do not pump the brakes repeatedly. This may To shift out of P (Park), turn the deplete power assist, requiring ignition to ON/RUN and apply the increased brake pedal force. brake pedal. 2. Shift the vehicle to N (Neutral). 1 (STOPPING THE ENGINE/LOCK/ This can be done while the OFF): When the vehicle is stopped, vehicle is moving. After shifting turn the ignition switch to LOCK/ to N (Neutral), firmly apply the OFF to turn the engine off. Retained brakes and steer the vehicle to a Accessory Power (RAP) will remain safe location. active. See Retained Accessory Power (RAP) on page 9-23 for more 3. Come to a complete stop, shift information. to P (Park), and turn the ignition to LOCK/OFF. On vehicles with an automatic transmission, the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (16,1) 7707475) - 2015 - CRC - 10/9/14
9-16 Driving and Operating
shift lever must be in P (Park) to 3 (ON/RUN): The ignition switch A warning tone sounds when the turn the ignition switch to the stays in this position when the driver door is opened when the LOCK/OFF position. engine is running. This position can ignition is still in ACC/ACCESSORY 4. Set the parking brake. See be used to operate the electrical and the key is in the ignition. If the Parking Brake on page 9-31. accessories, including the ignition becomes difficult to turn, ventilation fan and 12-volt power see Keys on page 2-1. outlet, as well as to display some { Warning warning and indicator lights. This Ignition Positions position can also be used for Turning off the vehicle while (Keyless Access) service and diagnostics, and to moving may cause loss of power verify the proper operation of the assist in the brake and steering malfunction indicator lamp as may systems and disable the airbags. be required for emission inspection While driving, only shut the purposes. The transmission is also vehicle off in an emergency. unlocked in this position. The battery could be drained if the If the vehicle cannot be pulled over, key is left in the ACC/ACCESSORY and must be shut off while driving, or ON/RUN position with the engine turn the ignition to ACC/ off. The vehicle might not restart if ACCESSORY. the battery is allowed to drain for an 2 (ACC/ACCESSORY): This extended period of time. position provides power to some of 4 (START): This position starts the the electrical accessories. It unlocks engine. When the engine starts, The vehicle has an electronic the ignition. To move the key from release the key. The ignition switch keyless ignition with pushbutton ACC/ACCESSORY to LOCK/OFF, will return to ON/RUN for normal start. the shift lever must be in P (Park). driving. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (17,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-17
Pressing the button cycles it through If the vehicle is not in P (Park), the 3. Come to a complete stop, shift three modes, ACC/ACCESSORY, ignition will return to ACC/ to P (Park), and turn the ignition ON/RUN/START, and Stopping the ACCESSORY and display the to OFF. On vehicles with an Engine/OFF. message SHIFT TO PARK in the automatic transmission, the shift The transmitter must be in the Driver Information Center (DIC). lever must be in P (Park) to turn vehicle for the system to operate. See Transmission Messages on the ignition switch to the OFF If the pushbutton start is not page 5-44. When the vehicle is position. working, the vehicle may be near a shifted into P (Park), the ignition 4. Set the parking brake. See strong radio antenna signal causing system will switch to OFF. Parking Brake on page 9-31. interference to the keyless access Do not turn the engine off when the system. See Remote Keyless Entry vehicle is moving. This will cause a { Warning (RKE) System Operation on loss of power assist in the brake page 2-3. and steering systems and disable Turning off the vehicle while To shift out of P (Park), the vehicle the airbags. moving may cause loss of power must be in ACC/ACCESSORY or If the vehicle must be shut off in an assist in the brake and steering ON/RUN and the brake pedal must emergency: systems and disable the airbags. While driving, only shut the be applied. 1. Brake using a firm and steady vehicle off in an emergency. Stopping the Engine/OFF (No pressure. Do not pump the Indicator Lights): When the brakes repeatedly. This may vehicle is stopped, press the deplete power assist, requiring If the vehicle cannot be pulled over, ENGINE START/STOP button once increased brake pedal force. and must be shut off while driving, to turn the engine off. 2. Shift the vehicle to N (Neutral). press and hold the ENGINE START/ If the vehicle is in P (Park), the This can be done while the STOP button for longer than ignition will turn off, and Retained vehicle is moving. After shifting two seconds, or press twice in Accessory Power (RAP) will remain to N (Neutral), firmly apply the five seconds. active. See Retained Accessory brakes and steer the vehicle to a Power (RAP) on page 9-23. safe location. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (18,1) 7707475) - 2015 - CRC - 10/9/14
9-18 Driving and Operating
ACC/ACCESSORY (Amber Service Only Mode { Caution Indicator Light): This mode allows This power mode is available for you to use some electrical service and diagnostics, and to accessories when the engine is off. Do not try to shift to P (Park) if the verify the proper operation of the vehicle is moving. If you do, you With the ignition off, pressing the malfunction indicator lamp as may could damage the transmission. button one time without the brake be required for emission inspection Shift to P (Park) only when the pedal applied will place the ignition purposes. With the vehicle off, and vehicle is stopped. system in ACC/ACCESSORY. the brake pedal not applied, The ignition will switch from ACC/ pressing and holding the button for ACCESSORY to OFF after more than five seconds will place five minutes to prevent battery the vehicle in Service Only Mode. { Caution rundown. The instruments and audio systems will operate as they do in ON/RUN, If you add electrical parts or ON/RUN/START (Green Indicator but the vehicle will not be able to be accessories, you could change Light): This mode is for driving and driven. The engine will not start in the way the engine operates. Any starting. With the ignition off, and Service Only Mode. Push the button resulting damage would not be the brake pedal applied, pressing again to turn the vehicle off. covered by the vehicle warranty. the button once will place the See Add-On Electrical Equipment ignition system in ON/RUN/START. Starting the Engine on page 9-68. Once engine cranking begins, release the button. Engine cranking Move the shift lever to P (Park) or will continue until the engine starts. N (Neutral). To restart the engine See Starting the Engine on when the vehicle is already moving, page 9-18. The ignition will then use N (Neutral) only. remain in ON/RUN. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (19,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-19
let go of the key, and the { Caution { Caution accelerator. If the vehicle starts briefly but then stops again, do If the steering wheel is turned Cranking the engine for long the same thing. This clears the until it reaches the end of its periods of time, by returning the extra gasoline from the engine. travel, and is held in that position ignition to the START position Do not race the engine while starting the vehicle, damage immediately after cranking has immediately after starting it. may occur to the hydraulic power ended, can overheat and damage Operate the engine and steering system and there may be the cranking motor, and drain the transmission gently until the oil loss of power steering assist. battery. Wait at least 15 seconds warms up and lubricates all between each try, to let the moving parts. cranking motor cool down. Starting Procedure (Key Access) Starting Procedure (Keyless 1. With your foot off the accelerator Access) 2. If the engine does not start after pedal, turn the ignition key to 1. With the Keyless Access five to 10 seconds, especially in START. When the engine starts, system, the RKE transmitter very cold weather (below −18°C let go of the key. must be in the vehicle. Press the or 0°F), it could be flooded with ENGINE START/STOP button The idle speed will go down as too much gasoline. Try pushing with the brake pedal applied. the engine warms. Do not race the accelerator pedal all the way When the engine begins the engine immediately after to the floor and holding it there cranking, let go of the button. starting it. Allow the oil to warm as you hold the key in START up and lubricate all moving for up to a maximum of The idle speed will go down as parts. 15 seconds. Wait at least the engine gets warm. Do not 15 seconds between each try, to race the engine immediately allow the cranking motor to cool after starting it. down. When the engine starts, Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (20,1) 7707475) - 2015 - CRC - 10/9/14
9-20 Driving and Operating
If the RKE transmitter is not in to the floor and holding it there the vehicle, if there is as you press the ENGINE Warning (Continued) interference, or the RKE battery START/STOP button, for up to a is low, the Driver Information maximum of 15 seconds. Wait at may be injured. Because the Center (DIC) will display a least 15 seconds between each vehicle has the automatic engine message. See Key and Lock try, to allow the cranking motor start/stop feature, the vehicle's Messages on page 5-39 and to cool down. When the engine engine might seem to be shut off; Remote Keyless Entry (RKE) starts, let go of the button, and however, once the brake pedal is System Operation on page 2-3. the accelerator. If the vehicle released, the engine will start up starts briefly but then stops again. { Caution again, do the same thing. This Shift to P (Park) and turn the clears the extra gasoline from ignition to LOCK/OFF, before the engine. Do not race the Cranking the engine for long exiting the vehicle. periods of time, by returning the engine immediately after starting ignition to the START position it. Operate the engine and immediately after cranking has transmission gently until the oil Vehicles with eAssist have an ended, can overheat and damage warms up and lubricates all automatic engine start/stop feature. the cranking motor, and drain the moving parts. After the engine is started and has battery. Wait at least 15 seconds reached operating temperature, the eAssist Automatic Engine auto stop feature may cause the between each try, to let the Start/Stop engine to turn off when the brakes cranking motor cool down. are applied and the vehicle comes { Warning to a complete stop. The vehicle may 2. If the engine does not start after remain in auto stop for up to five to 10 seconds, especially in Exiting the vehicle without first two minutes. When the brake is very cold weather (below −18°C shifting into P (Park) may cause released or the accelerator pedal or 0°F), it could be flooded with the vehicle to move. You or others applied, the engine will start. The too much gasoline. Try pushing (Continued) engine will continue to run until the the accelerator pedal all the way next auto stop. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (21,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-21
AUTO STOP on the tachometer . The air conditioning or defrost . Shifting out of D (Drive) to any signifies that the engine is in auto system need the compressor to other gear. maintain interior comfort. See stop mode. See Tachometer on . The air conditioning or defrost page 5-11. When the vehicle is Dual Automatic Climate Control system need the compressor to turned off, the tachometer will move System on page 8-1 When it is maintain interior comfort. See to OFF. If the driver door is opened very warm or humid, the system Dual Automatic Climate Control while in auto stop mode, a chime may not be able to shut the System on page 8-1. The will sound. engine off while maintaining warmer it is outside, the shorter interior comfort. To maximize To restart the engine during auto the time before the engine is fuel economy, use the eco air restarted to provide interior stop, release the brake pedal or conditioning mode. press the accelerator pedal. The cooling. To maximize fuel engine starts immediately. The . The shift lever is in P (Park), economy, use the eco air vehicle continues to run until the N (Neutral), R (Reverse), conditioning mode. or M (Manual Mode). next stop. . The climate control system is There are several conditions that . The high voltage battery pack turned from off to normal air may prevent an auto stop or cause charge is low. conditioning or defrost. See Dual Automatic Climate Control an auto start. . The hood is not fully closed. System on page 8-1. The Engine Will Remain . Brake pedal pressure is low. Running When: . The engine is required to run for . If the malfunction indicator lamp either heater or climate control . The engine, transmission, is on, auto stop may be performance. See Dual or high voltage battery is not prevented. Automatic Climate Control warmed up yet. . High humidity is detected. System on page 8-1. . The outside temperature is less . The Engine Will Restart When: The high voltage battery pack than −20°C (−4°F). charge is low and requires . The brake pedal is released. recharging. . The accelerator pedal is applied. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (22,1) 7707475) - 2015 - CRC - 10/9/14
9-22 Driving and Operating
. Auto stop time is greater than two minutes. . The hood is opened. Engine Heater The engine coolant heater, if available, can help in cold weather conditions at or below −18°C (0°F) for easier starting and better fuel economy during engine warm-up. Plug in the coolant heater at least four hours before starting the 3.6L V6 Engine 2.4L L4 Engine vehicle. An internal thermostat in the plug end of the cord will prevent The electrical cord is located on The electrical cord is located on engine coolant heater operation at the driver side of the engine the passenger side of the engine temperatures above −18°C (0°F). compartment, between the compartment, between the fender and the engine fender and the air cleaner on To Use the Engine Coolant compartment fuse block on vehicles with a four cylinder Heater vehicles with a six cylinder engine. 1. Turn off the engine. engine. Check the heater cord for 2. Open the hood and unwrap the damage. If it is damaged, do not electrical cord. use it. See your dealer for a replacement. Inspect the cord for damage yearly. 3. Plug it into a normal, grounded 110-volt AC outlet. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (23,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-23
4. Before starting the engine, be { Warning Warning (Continued) sure to unplug and store the cord as it was before to keep it Improper use of the heater cord overheat and cause a fire, away from moving engine parts. or an extension cord can damage property damage, electric the cord and may result in shock, and injury. The length of time the heater should remain plugged in depends on overheating and fire. . Do not operate the vehicle several factors. Ask a dealer in the . Plug the cord into a with the heater cord area where you will be parking the three-prong electrical utility permanently attached to the vehicle for the best advice on this. receptacle that is protected vehicle. Possible heater cord by a ground fault detection and thermostat damage could Retained Accessory function. An ungrounded occur. Power (RAP) outlet could cause an electric . While in use, do not let the shock. heater cord touch vehicle These vehicle accessories can be . Use a weatherproof, parts or sharp edges. Never used for up to 10 minutes after the heavy-duty, 15 amp-rated close the hood on the engine is turned off: extension cord if needed. heater cord. . Infotainment System Failure to use the . Before starting the vehicle, . Power Windows recommended extension cord unplug the cord, reattach the in good operating condition, cover to the plug, and . Sunroof (If Equipped) or using a damaged heater or securely fasten the cord. . Auxiliary Power Outlet extension cord, could make it Keep the cord away from any (Continued) moving parts. Power to the audio system will continue to operate for up to 10 minutes or until the driver door is opened. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (24,1) 7707475) - 2015 - CRC - 10/9/14
9-24 Driving and Operating
Power to the power windows and down the regular brake pedal. See if sunroof will continue to operate for Warning (Continued) you can move the shift lever away up to 10 minutes or until any door is from P (Park) without first pulling it opened. It is dangerous to get out of the toward you. If you can, it means that vehicle if the shift lever is not fully All of these features will work when the shift lever was not fully locked in P (Park) with the parking brake into P (Park). the ignition is in ON/RUN or ACC/ firmly set. The vehicle can roll. ACCESSORY. Torque Lock Do not leave the vehicle when the Shifting Into Park engine is running. If you have left Torque lock is when the weight of the engine running, the vehicle the vehicle puts too much force on 1. Hold the brake pedal down and can move suddenly. You or others the parking pawl in the set the parking brake. See could be injured. To be sure the transmission. This happens when Parking Brake on page 9-31. vehicle will not move, even when parking on a hill and shifting the 2. Move the shift lever into P (Park) you are on fairly level ground, transmission into P (Park) is not done properly and then it is difficult by pushing the lever all the way always set the parking brake and to shift out of P (Park). To prevent toward the front of the vehicle. move the shift lever to P (Park). torque lock, set the parking brake 3. Turn the ignition off. See Shifting Into Park on and then shift into P (Park). To find page 9-24. If you are towing a Leaving the Vehicle with the out how, see "Shifting Into P (Park)" trailer, see Driving Characteristics listed previously. Engine Running and Towing Tips on page 9-63. If torque lock does occur, your { Warning vehicle may need to be pushed If you have to leave the vehicle with uphill by another vehicle to relieve the engine running, be sure the It can be dangerous to leave the the parking pawl pressure, so you vehicle is in P (Park) and the vehicle with the engine running. can shift out of P (Park). parking brake is firmly set before It could overheat and catch fire. you leave it. After you have moved (Continued) the shift lever into P (Park), hold Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (25,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-25
If you are towing a trailer and If the vehicle has an uncharged If you still cannot move the shift parking on a hill, see Driving battery or a battery with low voltage, lever from P (Park), consult your Characteristics and Towing Tips on try charging or jump starting the dealer or a professional towing page 9-63. battery. See Jump Starting service. (On-board with eAssist Only) on Shifting out of Park page 10-78 or Jump Starting (with Parking over Things or without eAssist) on page 10-79. Automatic Transmission That Burn If the shift lever cannot be moved Shift Lock out of P (Park): { Warning The vehicle has an automatic 1. Apply and maintain the regular transmission shift lock control brakes. Things that can burn could touch system. The shift lock control hot exhaust parts under the 2. Turn the ignition to the ON/RUN system is designed to: vehicle and ignite. Do not park position. See Ignition Positions . over papers, leaves, dry grass, Prevent ignition key removal (Key Access) on page 9-15 or unless the shift lever is in Ignition Positions (Keyless or other things that can burn. P (Park). Access) on page 9-16 for more . Prevent movement of the shift information. lever out of P (Park), unless the 3. Let up on the shift lever and ignition is in ON/RUN and the make sure the shift lever is brake pedal is applied. pushed all the way into P (Park). The shift lock is always functional 4. Press the shift lever button. except in the case of an uncharged or low voltage (less than 9‐volt) 5. Move the shift lever into the battery. desired gear. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (26,1) 7707475) - 2015 - CRC - 10/9/14
9-26 Driving and Operating
Running the Vehicle Engine Exhaust Warning (Continued) While Parked . There are holes or openings { Warning It is better not to park with the in the vehicle body from engine running. Engine exhaust contains carbon damage or aftermarket monoxide (CO) which cannot be modifications that are not If the vehicle is left with the engine seen or smelled. Exposure to CO completely sealed. running, follow the proper steps to be sure the vehicle will not move. can cause unconsciousness and If unusual fumes are detected or even death. See Shifting Into Park on page 9-24 if it is suspected that exhaust is and Engine Exhaust on page 9-26. Exhaust may enter the vehicle if: coming into the vehicle: If parking on a hill and pulling a . The vehicle idles in areas . Drive it only with the windows trailer, see Driving Characteristics with poor ventilation (parking completely down. and Towing Tips on page 9-63. garages, tunnels, deep snow . Have the vehicle repaired that may block underbody immediately. airflow or tail pipes). Never park the vehicle with the . The exhaust smells or engine running in an enclosed sounds strange or different. area such as a garage or a . The exhaust system leaks building that has no fresh air due to corrosion or damage. ventilation. . The vehicle exhaust system has been modified, damaged, or improperly repaired. (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (27,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-27
Automatic lever button pressed before shifting { Warning from P (Park) when the ignition key Transmission is in ON/RUN. If you cannot shift out It is dangerous to get out of the of P (Park), ease pressure on the vehicle if the shift lever is not fully shift lever, then push the shift lever in P (Park) with the parking brake all the way into P (Park) as you firmly set. The vehicle can roll. maintain brake application. Then Do not leave the vehicle when the press the shift lever button and engine is running. If you have left move the shift lever into another the engine running, the vehicle gear. See Shifting out of Park on can move suddenly. You or others page 9-25. could be injured. To be sure the R (Reverse): Use this gear to vehicle will not move, even when back up. you are on fairly level ground, always set the parking brake and { Caution Shift Lever without Selective Ride move the shift lever to P (Park). Control Shown See Shifting Into Park on Shifting to R (Reverse) while the page 9-24 and Driving vehicle is moving forward could P (Park): This position locks the Characteristics and Towing Tips damage the transmission. The front wheels. It is the best position on page 9-63. repairs would not be covered by to use when starting the engine the vehicle warranty. Shift to because the vehicle cannot move R (Reverse) only after the vehicle easily. Make sure the shift lever is fully in is stopped. P (Park) before starting the engine. The vehicle has an automatic transmission shift lock control system. The regular brake must be fully applied first and then the shift Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (28,1) 7707475) - 2015 - CRC - 10/9/14
9-28 Driving and Operating
To rock the vehicle back and forth to get out of snow, ice, or sand without { Caution { Caution damaging the transmission, see If the Vehicle Is Stuck on page 9-9. Shifting out of P (Park) or If the vehicle accelerates slowly, N (Neutral) with the engine or does not shift gears, the N (Neutral): In this position, the running at high speed may transmission could be damaged. engine does not connect with the damage the transmission. The Have the vehicle serviced wheels. To restart the engine when repairs would not be covered by right away. the vehicle is already moving, use the vehicle warranty. Be sure the N (Neutral) only. Also, use engine is not running at high N (Neutral) when the vehicle is M (Manual Mode) or M/S (Manual speed when shifting the vehicle. being towed. Mode/Sport Mode): This position allows the driver to select the gears { Warning D (Drive): This position is for appropriate for current driving normal driving. It provides good fuel conditions, and to activate Selective Shifting into a drive gear while the economy when pushing the Ride Control (if equipped). See engine is running at high speed is accelerator pedal around a quarter Manual Mode on page 9-29 and dangerous. Unless your foot is of the way down. If more power is Selective Ride Control on firmly on the brake pedal, the needed for passing, press the page 9-36. vehicle could move very rapidly. accelerator pedal over half, or all You could lose control and hit the way down. people or objects. Do not shift into a drive gear while the engine is running at high speed. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (29,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-29
Manual Mode position. The gear indicator in Without Selective Ride Control the instrument cluster will still Driver Shift Control (DSC) 1. Move the shift lever from display an S for Sport Mode, and D (Drive) to M (Manual Mode). the SPORT MODE ON message { Caution will display momentarily. See The transmission will enter Ride Control System Messages Manual Mode. The DIC gear Driving with the engine at a high on page 5-42. When in Sport indicator will change to an M rpm without upshifting while using Mode, the vehicle will still shift followed by a number Driver Shift Control (DSC), could automatically, but chassis tuning representing the gear the vehicle damage the vehicle. Always is modified. See Selective Ride is currently in. upshift when necessary while Control on page 9-36. If you 2. In Manual Mode, press the using DSC. press the +/− switch on the side + (Plus) end of the switch on the of the shift lever, the side of the shift lever to upshift, transmission will enter Manual or the − (Minus) end to DSC allows the automatic Mode, and the DIC gear downshift. transmission to be shifted similar to indicator will change to an M a manual transmission. To use the followed by a number The display on the instrument DSC feature: representing the gear the vehicle cluster will show which gear the is currently in. vehicle is in. The number indicates With Selective Ride Control the requested gear when pressing 1. Move the shift lever from 2. In Manual Mode, press the the +/− switch on the shift lever. + (Plus) end of the switch on the D (Drive) to M/S (Manual Mode/ The transmission will only allow Sport Mode). side of the shift lever to upshift, or the − (Minus) end to shifting into gears appropriate for The vehicle will be in Sport downshift. the vehicle speed and engine Mode. The vehicle will remain in revolutions per minute (rpm). The Sport Mode until the shift lever is transmission will not automatically moved back to the D (Drive) shift to the next lower gear if the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (30,1) 7707475) - 2015 - CRC - 10/9/14
9-30 Driving and Operating
engine rpm is too high, nor to the Drive Systems Brakes next higher gear when the maximum engine rpm is reached. All-Wheel Drive Antilock Brake While in Manual Mode, the transmission will automatically Vehicles with this feature always System (ABS) downshift when the vehicle comes send engine power to all four This vehicle has ABS, an advanced to a stop. This will allow for more wheels. It is fully automatic, and electronic braking system that helps power during take-off. adjusts itself as needed for road prevent a braking skid. conditions. When accelerating the vehicle from When the vehicle begins to drive a stop in snowy and icy conditions, All-Wheel Drive (AWD) system away, ABS checks itself. you may want to shift into performance will be automatically A momentary motor or clicking noise 2 (Second) gear. A higher gear reduced when the compact spare might be heard while this test is allows the vehicle to gain more tire is in use. To restore full AWD going on, and it might even be traction on slippery surfaces. performance, and prevent excessive noticed that the brake pedal moves wear to the AWD system, replace a little. This is normal. the compact spare tire with a full-size tire as soon as possible. See Compact Spare Tire on page 10-77.
If there is a problem with ABS, this warning light stays on. See Antilock Brake System (ABS) Warning Light on page 5-20. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (31,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-31
If driving safely on a wet road and it suddenly slows or stops. Always Parking Brake becomes necessary to slam on the leave enough room up ahead to brakes and continue braking to stop, even with ABS. avoid a sudden obstacle, a computer senses the wheels are Using ABS slowing down. If one of the wheels Do not pump the brakes. Just hold is about to stop rolling, the computer the brake pedal down firmly and let will separately work the brakes at ABS work. You may hear the ABS each wheel. pump or motor operating and feel ABS can change the brake pressure the brake pedal pulsate. This is to each wheel, as required, faster normal. than any driver could. This can help Braking in Emergencies you steer around the obstacle while braking hard. ABS allows you to steer and brake at the same time. In many As the brakes are applied, the emergencies, steering can help The Electric Parking Brake (EPB) computer keeps receiving updates more than even the very best switch is on the center console. The on wheel speed and controls braking. EPB can always be activated, even braking pressure accordingly. if the ignition is off. To prevent Remember: ABS does not change draining the battery, avoid repeated the time needed to get a foot up to cycles of the EPB when the engine the brake pedal or always decrease is not running. stopping distance. If you get too The system has a red parking brake close to the vehicle in front of you, status light and an amber parking there will not be enough time to brake warning light. See Electric apply the brakes if that vehicle Parking Brake Light on page 5-20 and Service Electric Parking Brake Light on page 5-20. There are also Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (32,1) 7707475) - 2015 - CRC - 10/9/14
9-32 Driving and Operating
parking brake-related Driver flashing, have the vehicle serviced. EPB Release Information Center (DIC) messages. Do not drive the vehicle if the red To release the EPB: See Brake System Messages on parking brake status light is flashing. page 5-36. In case of insufficient See your dealer. See Electric 1. Place the ignition in the ACC/ electrical power, the EPB cannot be Parking Brake Light on page 5-20. ACCESSORY or ON/RUN position. applied or released. If the amber parking brake warning Before leaving the vehicle, check light is on, lift up on the EPB switch 2. Apply and hold the brake pedal. the red parking brake status light to and hold it up. Continue to hold the 3. Push down momentarily on the ensure that the parking brake is switch until the red parking brake EPB switch. applied. status light remains on. If the amber parking brake warning light is on, The EPB is released when the red EPB Apply see your dealer. parking brake status light is off. To apply the EPB: If the EPB is applied while the If the amber parking brake warning 1. Be sure the vehicle is at a vehicle is moving, the vehicle will light is on, release the EPB by complete stop. decelerate as long as the switch is pushing down on the EPB switch held up. If the switch is held up until and holding it down. Continue to 2. Lift up the EPB switch the vehicle comes to a stop, the hold the switch until the red parking momentarily. EPB will remain applied. brake status light is off. If either light The red parking brake status light stays on after release is attempted, The vehicle may automatically apply will flash and then stay on once the see your dealer. the EPB in some situations when EPB is fully applied. If the red the vehicle is not moving. This is parking brake status light flashes normal, and is done to periodically { Caution continuously, then the EPB is only check the correct operation of the partially applied or there is a Driving with the parking brake on EPB system. problem with the EPB. A DIC can overheat the brake system message will display. Release the If the EPB fails to apply, the rear and cause premature wear or wheels should be blocked to EPB and try to apply it again. If the (Continued) light does not come on, or keeps prevent vehicle movement. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (33,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-33
Brake Assist Hill Start Assist (HSA) Caution (Continued) The Brake Assist feature is This vehicle has an HSA feature, damage to brake system parts. designed to assist the driver in which may be useful when the Make sure that the parking brake stopping or decreasing vehicle vehicle is stopped on a grade is fully released and the brake speed in emergency driving sufficient enough to activate HSA. warning light is off before driving. conditions. This feature uses the This feature is designed to prevent stability system hydraulic brake the vehicle from rolling, either control module to supplement the forward or rearward, during vehicle Automatic EPB Release power brake system under drive off. After the driver completely The EPB will automatically release if conditions where the driver has stops and holds the vehicle in a the vehicle is running, placed into quickly and forcefully applied the complete standstill on a grade, HSA gear, and an attempt is made to brake pedal in an attempt to quickly will be automatically activated. drive away. Avoid rapid acceleration stop or slow down the vehicle. The During the transition period between when the EPB is applied, to stability system hydraulic brake when the driver releases the brake preserve parking brake lining life. control module increases brake pedal and starts to accelerate to pressure at each corner of the drive off on a grade, HSA holds the If parking on a hill, or if the vehicle vehicle until the ABS activates. braking pressure for a maximum of is pulling a trailer, see Driving Minor brake pedal pulsation or two seconds to ensure that there is Characteristics and Towing Tips on pedal movement during this time is no rolling. The brakes will page 9-63. normal and the driver should automatically release when the continue to apply the brake pedal as accelerator pedal is applied within the driving situation dictates. The the two-second window. It will not Brake Assist feature will activate if the vehicle is in a drive automatically disengage when the gear and facing downhill, or if the brake pedal is released or brake vehicle is facing uphill and in pedal pressure is quickly R (Reverse). decreased. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (34,1) 7707475) - 2015 - CRC - 10/9/14
9-34 Driving and Operating
Ride Control Systems vehicle wheel brakes to assist the driver in keeping the vehicle on the Traction Control/ intended path. If cruise control is being used and Electronic Stability traction control or StabiliTrak begins Control to limit wheel spin, cruise control will disengage. Cruise control may be The indicator light for both systems System Operation turned back on when road is in the instrument cluster. This The vehicle has a Traction Control conditions allow. light will: ® System (TCS) and StabiliTrak , an Both systems come on . Flash when TCS is limiting electronic stability control system. automatically when the vehicle is wheel spin. These systems help limit wheel slip started and begins to move. The and assist the driver in maintaining . Flash when StabiliTrak is systems may be heard or felt while activated. control, especially on slippery road they are operating or while conditions. performing diagnostic checks. This . Turn on and stay on when either TCS activates if it senses that any is normal and does not mean there system is not working. of the drive wheels are spinning or is a problem with the vehicle. If either system fails to turn on or to beginning to lose traction. When this It is recommended to leave both activate, a message displays in the happens, TCS applies the brakes to systems on for normal driving Driver Information Center (DIC), and the spinning wheels and reduces conditions, but it may be necessary d comes on and stays on to engine power to limit wheel spin. to turn TCS off if the vehicle gets indicate that the system is inactive StabiliTrak activates when the stuck in sand, mud, ice, or snow. and is not assisting the driver in vehicle senses a difference between See If the Vehicle Is Stuck on maintaining control. The vehicle is the intended path and the direction page 9-9 and “Turning the Systems safe to drive, but driving should be the vehicle is actually traveling. Off and On” later in this section. adjusted accordingly. StabiliTrak selectively applies braking pressure to any one of the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (35,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-35
If d comes on and stays on: Turning the Systems Off To turn off only TCS, press and and On release the button. The traction 1. Stop the vehicle. g off light i displays in the instrument 2. Turn the engine off and wait cluster. The appropriate DIC 15 seconds. message displays. See Ride Control 3. Start the engine. System Messages on page 5-42. Drive the vehicle. If d comes on To turn TCS on again, press and and stays on, the vehicle may need release the g button. The traction more time to diagnose the problem. off light i displayed in the If the condition persists, see your instrument cluster will turn off. dealer. If TCS is limiting wheel spin when the g button is pressed, the system will not turn off until the wheels stop spinning. The TCS/StabiliTrak button is on the center console. To turn off both TCS and StabiliTrak, press and hold the g button until { Caution the traction off light i and Do not repeatedly brake or StabiliTrak OFF light g come on accelerate heavily when TCS is and stay on in the instrument off. The vehicle driveline could be cluster. The appropriate DIC damaged. message displays. See Ride Control System Messages on page 5-42. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (36,1) 7707475) - 2015 - CRC - 10/9/14
9-36 Driving and Operating
To turn TCS and StabiliTrak on Selective Ride Control TOUR: Use for normal city and again, press and release the g highway driving. This setting The vehicle may have a ride control provides a smooth, soft ride. button. The traction off light i and system called Selective Ride StabiliTrak OFF light g in the Control. The system provides the SPORT: Use where road conditions or personal preference demand instrument cluster turn off. following performance benefits: more control. This setting provides Adding accessories can affect the . Reduced Impact Harshness more “feel,” or response to road vehicle performance. See . Improved Road Isolation conditions through increased Accessories and Modifications on steering effort and suspension . page 10-3. Improved High-Speed Stability tuning. . Improved Handling Response The setting can be changed at any Limited-Slip Differential . Better Control of Body Ride time. Based on road conditions, Vehicles with a limited-slip Motions steering wheel angle, and vehicle differential can give more traction on To switch from TOUR to SPORT speed, the system automatically snow, mud, ice, sand, or gravel. mode, move the shift lever to the adjusts to provide the best handling It works like a standard differential M/S (Manual/Sport) position. while providing a smooth ride. The most of the time, but when traction TOUR and SPORT modes will feel is low, this feature allows the drive similar on a smooth road. wheel with the most traction to move the vehicle. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (37,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-37
Cruise Control If equipped with the Traction Control System (TCS), the system may With cruise control the vehicle can begin to limit wheel spin while you maintain a speed of about 40 km/h are using cruise control. If this (25 mph) or more without keeping happens, the cruise control will your foot on the accelerator. Cruise automatically disengage. See control does not work at speeds Traction Control/Electronic Stability below 40 km/h (25 mph). Control on page 9-34. If a collision alert occurs when cruise control is { Warning activated, cruise control is disengaged. See Forward Collision Cruise control can be dangerous Alert (FCA) System on page 9-50. where you cannot drive safely at When road conditions allow you to a steady speed. Do not use safely use it again, cruise control 5 (On/Off): Press to turn cruise cruise control on winding roads or can be turned back on. control on or off. A white indicator in heavy traffic. If the brakes are applied, cruise comes on in the instrument cluster. Cruise control can be dangerous control disengages. RES+ (Resume/Accelerate): If on slippery roads. On such roads, there is a set speed in memory, fast changes in tire traction can press the control up briefly to cause excessive wheel slip, and resume to that speed or press and you could lose control. Do not use hold to accelerate. If cruise control cruise control on slippery roads. is already active, use to increase vehicle speed. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (38,1) 7707475) - 2015 - CRC - 10/9/14
9-38 Driving and Operating
SET− (Set/Coast): Press the The cruise control indicator on the . To increase vehicle speed in control down briefly to set the speed instrument cluster turns green after small increments, press RES+ and activate cruise control. If cruise the cruise control has been set to up briefly. For each press, the control is already active, use to the desired speed. See Instrument vehicle goes about 1.6 km/h decrease vehicle speed. Cluster on page 5-8. (1 mph) faster. * (Cancel): Press to disengage Resuming a Set Speed The speedometer reading can be cruise control without erasing the displayed in either English or metric set speed from memory. If the cruise control is set at a units. See Instrument Cluster on desired speed and then the brakes page 5-8. The increment value used Setting Cruise Control are applied or * is pressed, the depends on the units displayed. cruise control is disengaged without If the 5 button is on when not in Reducing Speed While Using erasing the set speed from memory. use, SET− or RES+ could get Cruise Control pressed and go into cruise when not Once the vehicle reaches about If the cruise control system is 40 km/h (25 mph) or more, press desired. Keep the 5 button off already activated: when cruise is not being used. RES+ up briefly. The vehicle returns to the previously set speed. . Press and hold SET− down until 1. Press the 5 button to turn the the desired lower speed is Increasing Speed While Using cruise system on. reached, then release it. Cruise Control 2. Get to the speed desired. . To slow down in small If the cruise control system is increments, press SET−down 3. Press and release the SET− already activated: briefly. For each press, the control on the steering wheel. . Press and hold RES+ up until vehicle goes about 1.6 km/h The desired set speed briefly the vehicle accelerates to the (1 mph) slower. appears in the instrument desired speed, then release it. cluster. 4. Take your foot off the accelerator pedal. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (39,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-39
The speedometer reading can be lower gear to keep your speed The following gap is the following displayed in either English or metric down. If the brake pedal is applied, time between your vehicle and a units. See Instrument Cluster on cruise control will disengage. vehicle detected directly ahead in page 5-8. The increment value used your path, moving in the same depends on the units displayed. Ending Cruise Control direction. If no vehicle is detected in There are four ways to end cruise your path, ACC works like regular Passing Another Vehicle While control: cruise control. ACC uses a radar Using Cruise Control sensor. See Radio Frequency . Step lightly on the brake pedal. Use the accelerator pedal to Statement on page 13-12. . * increase the vehicle speed. When Press . If a vehicle is detected in your path, you take your foot off the pedal, the . ACC can apply acceleration or vehicle will slow down to the Shift the transmission to N (Neutral). limited, moderate braking to previously set cruise speed. While maintain the selected following gap. . pressing the accelerator pedal or To turn off cruise control, To disengage ACC, apply the brake. shortly following the release to press 5. If ACC is controlling your vehicle override cruise control, briefly Erasing Speed Memory speed when the traction control pressing SET− will result in cruise system (TCS) or electronic stability set to the current vehicle speed. The cruise control set speed is control system activates, the ACC Using Cruise Control on Hills erased from memory if 5 is pressed may automatically disengage. See Traction Control/Electronic Stability How well the cruise control will work or the ignition is turned off. Control on page 9-34. When road on hills depends upon the vehicle conditions allow ACC to be safely speed, load, and the steepness of Adaptive Cruise Control used, the ACC can be turned the hills. When going up steep hills, If equipped with Adaptive Cruise back on. you might have to step on the Control (ACC), it allows the driver to accelerator pedal to maintain your select the cruise control set speed ACC will not engage if the TCS or speed. When going downhill, you and following gap. Read this entire electronic stability control system is might have to brake or shift to a section before using this system. disabled. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (40,1) 7707475) - 2015 - CRC - 10/9/14
9-40 Driving and Operating
{ Warning Warning (Continued)
ACC has limited braking ability Do not use Adaptive Cruise and may not have time to slow Control when: the vehicle down enough to avoid . On winding and hilly roads or a collision with another vehicle when the sensors are you are following. This can occur blocked by snow, ice, or dirt. when vehicles suddenly slow or The system may not detect a stop ahead, or enter your lane. vehicle ahead. Keep the Also see “Alerting the Driver” in entire front of the vehicle this section. Complete attention is clean. always required while driving and . Visibility is low, such as in you should be ready to take fog, rain, or snow conditions. ] (On/Off): Press to turn the action and apply the brakes. See Adaptive Cruise Control system on or off. The indicator turns Defensive Driving on page 9-3. performance is limited under white on the instrument cluster these conditions. when ACC is turned on. . On slippery roads where fast RES+ (Resume/Accelerate): { Warning changes in tire traction can Press the control up briefly to make cause excessive wheel slip. the vehicle resume to a previously Adaptive Cruise Control will not set speed, or hold upwards to detect or brake for children, accelerate. If cruise control is pedestrians, animals, or other already active, use to increase objects. vehicle speed. (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (41,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-41
SET– (Set/Coast): Press the To set ACC: Be mindful of speed limits, control down briefly to set the speed ] surrounding traffic speeds, and and activate cruise control. If cruise 1. Press . weather conditions when selecting control is already active, use to 2. Get up to the desired speed. the set speed. decrease vehicle speed. 3. Press and release the SET– Resuming a Set Speed * (Cancel): Press to disengage control on the steering wheel. ACC without erasing the selected If the ACC is set at a desired speed set speed. 4. Remove foot from the and then the brakes are applied, accelerator. ACC is disengaged without erasing 3 (Follow Distance Gap): Press the set speed from memory. to select a following gap time (or After ACC is set, it may immediately distance) setting for ACC of Far, apply the brakes if a vehicle ahead To begin using ACC again, press Medium, or Near. is detected closer than the selected RES+ up briefly on the steering following gap. wheel. The vehicle returns to the Setting Adaptive Cruise Control previously set speed. If the cruise button is on when not in Increasing Speed While ACC is at use, it could get pressed and go into a Set Speed cruise when not desired. Keep the If ACC is already activated, do one cruise control button off when cruise of the following: is not being used. . Select the set speed desired for Use the accelerator to get to the The ACC indicator displays on the higher speed. Press SET down. cruise. This is the vehicle speed – instrument cluster and Head-Up when no vehicle is detected in Release the control and the Display (HUD). When ACC is active, its path. accelerator pedal. The vehicle the indicator will be lit green. will now cruise at the higher ACC will not set at a speed less speed. than 25 km/h (16 mph), although it can be resumed when driving at lower speeds. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (42,1) 7707475) - 2015 - CRC - 10/9/14
9-42 Driving and Operating
When the accelerator pedal is Reducing Speed While ACC is at a Selecting the Follow Distance Gap pressed, ACC will not brake Set Speed When a slower moving vehicle is because it is overridden. If ACC is already activated, do one detected ahead within the selected A warning message will appear of the following: following gap, ACC will adjust the on the Driver Information Center vehicle's speed and attempt to (DIC) and Head-Up Display . Use the brake to get to the desired lower speed. Press maintain the follow distance gap (HUD). See Cruise Control selected. Messages on page 5-36. SET– down and release the accelerator pedal. The vehicle 3 . Press and hold RES+ up until Press on the steering wheel to will now cruise at the lower adjust the following gap. Each press the desired set speed appears speed. on the display, then release it. cycles the gap button through three . Press and hold SET– down until settings: Far, Medium, or Near. . To increase vehicle speed in the desired lower speed is When pressed, the current gap small increments, briefly press reached, then release it. RES+. For each press, the setting displays briefly on the vehicle increase to the next . To decrease the vehicle speed in instrument cluster and HUD. The 5 km/h (1 mph) mark on the smaller increments, press SET− gap setting will be maintained until it speedometer. down briefly. For each press, the is changed. vehicle speed decreases to the When it is determined that there is Since each gap setting corresponds next 5 km/h (1 mph) mark on the to a following time (Far, Medium, no vehicle ahead or the vehicle speedometer. ahead is beyond the selected or Near), the following distance will following gap, then the vehicle The speedometer reading can be vary based on vehicle speed. The speed will increase to the set speed. displayed in either English or metric faster the vehicle speed, the further units. See Instrument Cluster on back your vehicle will follow a The speedometer reading can be page 5-8. The increment value used vehicle detected ahead. Consider displayed in either English or metric depends on the units displayed. traffic and weather conditions when units. See Instrument Cluster on selecting the following gap. The page 5-8. The increment value used depends on the units displayed. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (43,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-43
range of selectable gaps may not be Alert Seat will pulse five times. See selected follow gap. The vehicle appropriate for all drivers and “Collision/Detection Systems” under speed increases or decreases to driving conditions. Vehicle Personalization on follow the vehicle in front of you, but Changing the gap setting page 5-45. will not exceed the set speed. It may automatically changes the alert See Defensive Driving on page 9-3. apply limited braking, if necessary. timing sensitivity (Far, Medium, When braking is active, the brake or Near) for the Forward Collision Approaching and Following a lights will come on. The automatic Alert (FCA) feature. See Forward Vehicle braking may feel or sound different Collision Alert (FCA) System on than if the brakes were applied page 9-50. manually. This is normal. Alerting the Driver Stationary or Very Slow-Moving Objects
{ Warning
The vehicle ahead symbol is in the Adaptive Cruise Control (ACC) instrument cluster and HUD display. may not detect and react to The vehicle ahead symbol only stopped or slow-moving vehicles displays when a vehicle is detected ahead of you. For example, the If ACC is engaged, driver action in your vehicle’s path moving in the system may not brake for a may be required when ACC cannot same direction. vehicle it has never detected apply sufficient braking because of moving. This can occur in approaching a vehicle too rapidly. If this symbol is not displaying, ACC will not respond to or brake to stop-and-go traffic or when a When this condition occurs, the vehicles ahead. vehicle suddenly appears due to collision alert symbol on the HUD a vehicle ahead changing lanes. ACC automatically slows the vehicle will flash on the windshield. Either Your vehicle may not stop and down and adjusts vehicle speed to eight beeps will sound from the (Continued) front, or both sides of the Safety follow the vehicle in front at the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (44,1) 7707475) - 2015 - CRC - 10/9/14
9-44 Driving and Operating
The ACC active symbol will not be applies the electric parking brake to Warning (Continued) displayed when ACC is no longer hold the vehicle. The electric active. parking brake status light will turn could cause a crash. Use caution on. See Parking Brake on when using ACC. Your complete Notification to Resume ACC page 9-31. To resume ACC and attention is always required while ACC will maintain a follow gap release the electric parking brake, driving and you should be ready behind a detected vehicle and slow press the accelerator pedal. to take action and apply the your vehicle to a stop behind that brakes. A DIC warning message may vehicle. display indicating to shift to P (Park) If the stopped vehicle ahead has before exiting the vehicle. See ACC Automatically Disengages driven away and ACC has not Vehicle Messages on page 5-35. ACC may automatically disengage resumed, the vehicle ahead symbol and the driver will need to manually will flash as a reminder to check { Warning apply the brakes to slow the traffic ahead before proceeding. In vehicle when: addition, the left and right sides of If ACC has stopped the vehicle, the Safety Alert Seat will pulse three and if ACC is disengaged, turned . The sensors are blocked. times, or three beeps will sound. off, or canceled, the vehicle will . The traction control system See ”Alert Type” and “Go Notifier” in no longer be held at a stop. The (TCS) or electronic stability “Collision/Detection Systems” under vehicle can move. When ACC is control system has activated or Vehicle Personalization on holding the vehicle at a stop, been disabled. page 5-45. always be prepared to manually . No traffic or other objects are When the vehicle ahead drives apply the brakes. being detected. away, press RES+ or the accelerator pedal to resume cruise . There is a fault in the system. control. If stopped for more than A message will appear on the DIC two minutes or if the driver door is indicating that cruise is disengaging. opened and the driver safety belt is unbuckled, the ACC automatically Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (45,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-45
{ Warning { Warning { Warning
Leaving the vehicle without The ACC will not automatically On curves, ACC may respond to placing it in P (Park) can be apply the brakes if your foot is a vehicle in another lane, or may dangerous. Do not leave the resting on the accelerator pedal. not have time to react to a vehicle vehicle while it is being held at a You could crash into a vehicle in your lane. You could crash into stop by ACC. Always place the ahead of you. a vehicle ahead of you, or lose vehicle in P (Park) and turn off control of your vehicle. Give extra the ignition before leaving the Curves in the Road attention in curves and be ready vehicle. to use the brakes if necessary. Select an appropriate speed while { Warning ACC Override driving in curves. On curves, ACC may not detect a If using the accelerator pedal while ACC is active, a DIC warning vehicle ahead in your lane. You ACC may operate differently in a message will indicate that automatic could be startled if the vehicle sharp curve. It may reduce the braking will not occur. See Vehicle accelerates up to the set speed, vehicle speed if the curve is too Messages on page 5-35. ACC will especially when following a sharp. resume operation when the vehicle exiting or entering exit accelerator pedal is not being ramps. You could lose control of pressed. the vehicle or crash. Do not use ACC while driving on an entrance or exit ramp. Always be ready to use the brakes if necessary. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (46,1) 7707475) - 2015 - CRC - 10/9/14
9-46 Driving and Operating
When following a vehicle and Other Vehicle Lane Changes Do Not Use ACC on Hills and entering a curve, ACC may not When Towing a Trailer detect the vehicle ahead and accelerate to the set speed. When this happens, the vehicle ahead symbol will not appear.
ACC will not detect a vehicle ahead until it is completely in the lane. The Do not use ACC when driving on brakes may need to be manually steep hills or when towing a trailer. applied. ACC will not detect a vehicle in the lane while driving on steep hills. The ACC may detect a vehicle that is driver will often need to take over not in your lane and apply the acceleration and braking on steep brakes. hills, especially when towing a ACC may occasionally provide an trailer. If the brakes are applied, the alert and/or braking that is ACC disengages. considered unnecessary. It could respond to vehicles in different lanes, signs, guardrails, and other stationary objects when entering or exiting a curve. This is normal operation. The vehicle does not need service. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (47,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-47
Disengaging ACC Driver Assistance Warning (Continued) There are three ways to Systems disengage ACC: . Detect children, pedestrians, . Step lightly on the brake pedal. This vehicle may have features that bicyclists, or animals. work together to help avoid crashes . Detect vehicles or objects . Press *. or reduce crash damage while outside the area monitored by driving, backing, and parking. Read the system. . Press ]. this entire section before using . Erasing Speed Memory these systems. Work at all driving speeds. . The cruise control set speed is Warn you or provide you with { Warning enough time to avoid a crash. erased from memory if ] is pressed or if the ignition is Do not rely on the Driver . Work under poor visibility or turned off. Assistance Systems. These bad weather conditions. systems do not replace the need . Cleaning the Sensing System Work if the detection sensor for paying attention and driving is not cleaned or is covered The radar sensor on the front of the safely. You may not hear or feel by ice, snow, mud, or dirt. vehicle can become blocked by alerts or warnings provided by snow, ice, dirt, or mud. This area Complete attention is always these systems. Failure to use required while driving, and you needs to be cleaned for ACC to proper care when driving may operate properly. should be ready to take action result in injury, death, or vehicle and apply the brakes and/or steer For cleaning instructions, see damage. See Defensive Driving the vehicle to avoid crashes. “Washing the Vehicle” under on page 9-3. Exterior Care on page 10-85. Under many conditions, these System operation may also be systems will not: limited under snow, heavy rain, (Continued) or road spray conditions. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (48,1) 7707475) - 2015 - CRC - 10/9/14
9-48 Driving and Operating
Audible or Safety Alert Seat When the vehicle is shifted into Warning (Continued) Some driver assistance features R (Reverse), the RVC displays an image of the area behind the vehicle alert the driver of obstacles by use proper care before backing beeping. To change the volume of in the center stack display. When the vehicle is shifted out of may result in injury, death, the warning chime, see “Comfort R (Reverse), the screen returns to or vehicle damage. Always check and Convenience” under Vehicle behind and around the vehicle Personalization on page 5-45. the previous content, after a short delay. To return to this previous before backing. If equipped with the Safety Alert screen sooner, press one of the Seat, the driver seat cushion may radio buttons. If the message provide a vibrating pulse alert Service Rear Camera System is instead of beeping. To change this, displayed, the vehicle may need see “Collision/Detection Systems” service. under Vehicle Personalization on page 5-45. { Warning
Assistance Systems for The RVC system does not display Parking or Backing children, pedestrians, bicyclists, crossing traffic, animals, or any When the vehicle is in R (Reverse), other object located outside the the Rear Vision Camera (RVC) and camera's field of view, below the Rear Parking Assist may help the bumper, or under the vehicle. driver to avoid a crash or to reduce crash damage while parking or Perceived distances may be 1. View Displayed by the backing. Some models may also different from actual distances. Camera have the Rear Cross Traffic Alert Do not back the vehicle using (RCTA) feature. only the RVC screen. Failure to (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (49,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-49
On vehicles with the Rear Cross These detection distances may be Traffic Alert (RCTA), a triangle with shorter during warmer or humid an arrow may also display on the weather. Blocked sensors will not RVC screen to warn of traffic detect objects and can also cause coming from either direction when false detections. Keep the sensors backing. This system detects clean of mud, dirt, snow, ice, and objects coming from up to 20 m slush; and clean sensors after a car (66 ft) from the left or right side wash in freezing temperatures. behind the vehicle. When an object 1. View Displayed by the is detected, either three beeps { Warning Camera sound from the left or right side or 2. Corners of the Rear Bumper three Safety Alert Seat pulses occur The parking assist system does on the left or right side, depending not detect children, pedestrians, Displayed images may be farther or on the direction of the detected bicyclists, animals, or objects closer than they appear. The area vehicle. located below the bumper or that displayed is limited and objects that are too close or too far from the are close to either corner of the Use caution while backing up when vehicle. It is not available at bumper or under the bumper do not towing a trailer, as the RCTA display. detection zones that extend out speeds greater than 8 km/h from the back of the vehicle do not (5 mph). To prevent injury, death, A warning triangle may display on move further back when a trailer is or vehicle damage, even with the RVC screen to show where the towed. parking assist, always check the Rear Parking Assist (RPA) has area around the vehicle and detected an object. This triangle With RPA, as the vehicle backs up at speeds of less than 8 km/h check all mirrors before moving changes from amber to red and forward or backing. increases in size the closer the (5 mph), the sensors on the rear object. bumper detect objects up to 2.5 m (8 ft) behind the vehicle that are within a zone 25 cm (10 in) high off the ground and below bumper level. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (50,1) 7707475) - 2015 - CRC - 10/9/14
9-50 Driving and Operating
Turning the Features On or Off 3. Press Rear Park Assist Symbols or Guidance Lines, and then select OFF or ON. Assistance Systems for Driving If equipped, when driving the vehicle forward, Forward Collision The X button on the center stack The vehicle may have instrument Alert (FCA), Lane Departure cluster parking assist display with is used to turn on or off the Rear Warning (LDW), Side Blind Zone Parking Assist. The indicator light bars that show “distance to object” Alert (SBZA), Lane Change Alert and object location information for next to the button comes on when (LCA), and/or the Active Emergency RPA. As the object gets closer, the feature is on and turns off when Braking System can help to avoid a more bars light up and the bars the feature has been disabled. crash or reduce crash damage. change color from yellow to amber Turn off parking assist when towing to red. a trailer. Forward Collision Alert When an object is first detected, The parking assist symbols and (FCA) System one beep will be heard from the guidance lines can be turned on or The FCA system may help to avoid rear, or both sides of the Safety off through the Settings menu on or reduce the harm caused by Alert Seat will pulse two times. the infotainment system: front-end crashes. FCA provides a When an object is very close 1. On the infotainment system, flashing red alert on the windshield, (<0.6 m (2 ft)), five beeps will sound, press the Settings screen and beeps or pulses the Safety Alert or both sides of the Safety Alert button, or turn the MENU knob Seat when approaching a vehicle Seat will pulse five times. to highlight Settings and directly ahead too quickly. FCA also press MENU. provides a visual alert if following another vehicle much too closely. 2. Select Rear Camera. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (51,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-51
FCA detects vehicles within a FCA can be disabled through distance of approximately 60 m vehicle personalization. See the { Warning (197 ft) and operates at speeds “Auto Collision Preparation” portion FCA does not provide a warning above 40 km/h (25 mph). If the of “Collision/Detection Systems” vehicle has Adaptive Cruise Control under Vehicle Personalization on to help avoid a crash, unless it (ACC), it can detect vehicles to page 5-45. detects a vehicle. FCA may not distances of approximately 110 m detect a vehicle ahead if the FCA (360 ft). See Adaptive Cruise Detecting the Vehicle Ahead sensor is blocked by dirt, snow, Control on page 9-39. or ice, or if the windshield is damaged. It may also not detect a { Warning vehicle on winding or hilly roads, or in conditions that can limit FCA is a warning system and visibility such as fog, rain, does not apply the brakes. When or snow, or if the headlamps or approaching a slower-moving or windshield are not cleaned or in stopped vehicle ahead too rapidly, FCA warnings will not occur unless proper condition. Keep the or when following a vehicle too the FCA system detects a vehicle windshield, headlamps, and FCA closely, FCA may not provide a ahead. The vehicle-ahead indicator sensors clean and in good repair. warning with enough time to help will display green when a vehicle is avoid a crash. FCA does not warn detected in front. Vehicles may not be detected on curves, highway exit of pedestrians, animals, signs, ramps, or hills; or due to poor guardrails, bridges, construction visibility. FCA will not detect another barrels, or other objects. Be ready vehicle ahead until it is completely to take action and apply the in the driving lane. brakes. For more information, see Defensive Driving on page 9-3. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (52,1) 7707475) - 2015 - CRC - 10/9/14
9-52 Driving and Operating
Collision Alert Selecting the Alert Timing Following Distance Indication The Collision Alert control is on the The following distance to a moving steering wheel. Press [ to set the vehicle you are following is alert timing. The first button press indicated in following time in shows the current setting on the seconds on the Driver Information DIC. Additional button presses will Center (DIC). See Driver change this setting. The chosen Information Center (DIC) on setting will remain until it is changed page 5-28. The minimum following When your vehicle approaches and will affect the timing of both the time is 0.5 seconds away. If there is another vehicle too rapidly, the red Collision Alert and the Tailgating no vehicle detected ahead, or the collision alert symbol on the HUD, Alert features. The timing of both vehicle ahead is out of sensor will flash on the windshield. Either alerts will vary based on vehicle range, dashes will be displayed. eight beeps will sound from the speed. The faster the vehicle speed, front, or both sides of the Safety Unnecessary Alerts the farther away the alert will occur. Alert Seat will pulse five times. Consider traffic and weather FCA may provide unnecessary Tailgating Alert conditions when selecting the alert alerts for turning vehicles, vehicles timing. The range of selectable alert in other lanes, objects that are not timing may not be appropriate for all vehicles, or shadows. These alerts drivers and driving conditions. are normal operation and the vehicle does not need service. Changing the FCA timing setting automatically changes the following Cleaning the System gap setting (Far, Medium, or Near) If the FCA system does not seem to for the Adaptive Cruise Control operate properly, cleaning the The vehicle-ahead indicator will (ACC) feature. display amber when you are outside of the windshield in front of following a vehicle ahead much too the camera sensor and the front of closely. the vehicle may correct the issue. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (53,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-53
Active Emergency { Warning { Warning Braking System If the vehicle has Adaptive Cruise IBA may increase vehicle braking ACP is an emergency crash Control (ACC) it also has the Active in situations when it may not be preparation feature and is not Emergency Braking System, which necessary. You could block the designed to avoid crashes. Do includes Intelligent Brake flow of traffic. If this occurs, take not rely on ACP to brake the Assist (IBA) and the Automatic your foot off the brake pedal and vehicle. Collision Preparation (ACP) System. then apply the brakes as needed. ACP may not: These systems can provide a boost to braking or automatically brake the . Respond to stopped vehicles, Automatic Collision pedestrians, or animals. vehicle to help avoid or lessen the Preparation (ACP) System severity of crashes when driving in a . Detect a vehicle ahead on forward gear. When driving in a forward gear winding or hilly roads. above 9 km/h (5 mph), ACP may . Intelligent Brake Assist (IBA) help reduce crash damage by Detect a stopped or applying the brakes. It has a slow-moving vehicle or other IBA may activate when the brake object ahead. pedal is applied quickly by providing detection range of approximately a boost to braking based on the 60 m (197 ft). This front automatic . Detect a vehicle when speed of approach and distance to braking can only occur if a vehicle is weather limits visibility, such a vehicle ahead. detected. This is shown by the FCA as in fog, rain, or snow. In vehicle ahead indicator being lit. these situations, ACP sensor Minor brake pedal pulsations or See Forward Collision Alert (FCA) performance is limited. pedal movement during this time is System on page 9-50. normal and the brake pedal should (Continued) continue to be applied as needed. IBA will automatically disengage only when the brake pedal is released. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (54,1) 7707475) - 2015 - CRC - 10/9/14
9-54 Driving and Operating
Automatic Braking may slow the Warning (Continued) vehicle to a complete stop to try to { Warning avoid a potential crash. The vehicle Complete attention is always will only hold at a stop briefly. A firm Using the Automatic Collision required while driving, and you press of the accelerator pedal will Preparation System while towing should be ready to take action also release Automatic Braking. a trailer could cause you to lose and apply the brakes and/or steer control of the vehicle and crash. the vehicle to avoid crashes. { Warning Turn the system off when towing a trailer. Brake Preparation Automatic Braking may automatically brake the vehicle When quickly approaching a vehicle Side Blind Zone suddenly in situations where it is ahead, Brake Preparation reduces unexpected and undesired. Alert (SBZA) brake response time by having the brake system prepared for driver It could respond to a turning If equipped, the SBZA system is a braking to occur more rapidly. vehicle ahead, guardrails, signs, lane-changing aid that assists and other non-moving objects. To drivers with avoiding crashes that Automatic Braking override Automatic Braking, firmly occur with vehicles in the side blind If ACP detects it is about to crash press the accelerator pedal, if it is zone (or spot) areas. When the with the vehicle you are following safe to do so. vehicle is moving forward, the left or that is moving or has come to a right side mirror display will light up stop, and the brakes have not been if a vehicle is detected in that blind Automatic Braking can be disabled zone. If the turn signal is activated applied, it may automatically brake or reduced through vehicle hard. This can help to reduce crash and a vehicle is also detected on personalization. See the “Auto the same side, the display will flash damage and it may even help to Collision Preparation” portion of avoid some very low speed crashes. as an extra warning not to change “Collision/Detection Systems” under lanes. Since this system is part of Vehicle Personalization on page 5-45. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (55,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-55
the Lane Change Alert system, read approximately between 0.5 m (1.5 ft) the entire Lane Change Alert Warning (Continued) and 2 m (6 ft) off the ground. The section before using this feature. Side Blind Zone Alert (SBZA) changing lanes may result in warning area starts at approximately Lane Change Alert injury, death, or vehicle damage. the middle of the vehicle and goes Before making a lane change, back 5 m (16 ft). Drivers are also If equipped, the Lane Change Alert always check mirrors, glance over warned of vehicles rapidly (LCA) system is a lane-changing aid your shoulder, and use the turn approaching from up to 70 m (230 ft) that assists drivers with avoiding signals. behind the vehicle. lane change crashes that occur with vehicles in the side blind zone (or How the System Works spot) areas or with vehicles rapidly The LCA symbol lights up in the approaching these areas from side mirrors when the system behind. The LCA warning display detects a vehicle in the next lane will light up in the corresponding over that is in the side blind zone or outside side mirror and will flash if rapidly approaching from behind. the turn signal is on. A lit LCA symbol indicates it may be unsafe to change lanes. Before { Warning making a lane change, check the LCA display, check mirrors, glance LCA does not alert the driver to 1. SBZA Detection Zone over your shoulder, and use the turn vehicles outside of the system 2. LCA Detection Zone signals. detection zones, pedestrians, bicyclists, or animals. It may not LCA Detection Zones provide alerts when changing The LCA sensor covers a zone of lanes under all driving conditions. approximately one lane over from Failure to use proper care when both sides of the vehicle, or 3.5 m (Continued) (11 ft). The height of the zone is Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (56,1) 7707475) - 2015 - CRC - 10/9/14
9-56 Driving and Operating
page 5-45. If LCA is disabled by the vehicles. This is normal system driver, the LCA mirror displays will operation; the vehicle does not need not light up. service. When the System Does Not LCA may not always alert the driver Seem to Work Properly to vehicles in the next lane over, especially in wet conditions or when Left Side Mirror Right Side Mirror The LCA system requires some driving on sharp curves. The system Display Display driving for the system to calibrate to does not need to be serviced. The maximum performance. This system may light up due to When the vehicle is started, both calibration may occur more quickly if guardrails, signs, trees, shrubs, and outside mirror LCA displays will the vehicle is driving on a straight other non-moving objects. This is briefly come on to indicate the highway road with traffic and normal system operation; the system is operating. When the roadside objects (e.g., guardrails, vehicle does not need service. vehicle is moving forward, the left or barriers). right side mirror display will light up LCA may not operate when the LCA if a vehicle is detected in the next LCA displays may not come on sensors in the left or right corners of lane over in that blind zone or when passing a vehicle quickly or the rear bumper are covered with rapidly approaching that zone. If the when towing a trailer. The LCA mud, dirt, snow, ice, or slush, or in turn signal is activated in the same detection zones that extend back heavy rainstorms. For cleaning direction as a detected vehicle, this from the side of the vehicle do not instructions, see "Washing the display will flash as an extra move further back when a trailer is Vehicle" under Exterior Care on warning not to change lanes. towed. Use caution while changing page 10-85. If the DIC still displays lanes when towing a trailer. LCA the system unavailable message LCA can be disabled through may alert to objects attached to the after cleaning both sides of the vehicle personalization using the vehicle, such as a trailer, bicycle, vehicle toward the rear corners of Side Blind Zone Alert option. See or object extending out to either side the vehicle, see your dealer. “Collision/Detection Systems” under of the vehicle. Attached objects may Vehicle Personalization on also interfere with the detection of Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (57,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-57
If the LCA displays do not light up when vehicles are in the side blind { Warning Warning (Continued) zone or rapidly approaching this zone and the system is clean, the The LDW system does not steer marking. Always keep your system may need service. Take the the vehicle. The LDW system attention on the road and vehicle to your dealer. may not: maintain proper vehicle position within the lane, or vehicle When LCA is disabled for any . Provide enough time to avoid a crash. damage, injury, or death could reason other than the driver turning occur. Always keep the it off, the Side Blind Zone Alert On . Detect lane markings under windshield, headlamps, and option will not be available on the poor weather or visibility camera sensors clean and in personalization menu. conditions. This can occur if good repair. Do not use LDW in the windshield or headlamps Radio Frequency Information bad weather conditions. are blocked by dirt, snow, See Radio Frequency Statement on or ice; if they are not in page 13-12. proper condition; or if the sun How the System Works shines directly into the The LDW camera sensor is on the camera. Lane Departure windshield ahead of the rearview Warning (LDW) . Detect road edges. mirror. If equipped, LDW may help avoid . Detect lanes on winding or To turn LDW on and off, press @ on crashes due to unintentional lane hilly roads. the center stack. The control departures. It may provide an alert if If LDW only detects lane indicator will light when LDW is on. the vehicle is crossing a lane markings on one side of the road, without using a turn signal in that it will only warn you when direction. LDW uses a camera sensor to detect the lane markings departing the lane on the side at speeds of 56 km/h (35 mph) or where it has detected a lane greater. (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (58,1) 7707475) - 2015 - CRC - 10/9/14
9-58 Driving and Operating
When the System Does Not Fuel Seem to Work Properly Use of the recommended fuel is an The system may not detect lanes as important part of the proper well when there are: maintenance of this vehicle. When . Close vehicles ahead. driving in the U.S. and Canada, to help keep the engine clean and @ . Sudden lighting changes, such When LDW is on, is green if maintain optimum vehicle as when driving through tunnels. LDW is available to warn of a lane performance, we recommend using departure. If the vehicle crosses a . Banked roads. TOP TIER Detergent Gasolines. detected lane marking without using If the LDW system is not functioning See www.toptiergas.com for a list of the turn signal in that direction, @ properly when lane markings are TOP TIER Detergent Gasolines. changes to amber and flashes. clearly visible, cleaning the Additionally, there will be three windshield may help. beeps, or the driver seat will pulse three times on the right or left, LDW alerts may occur due to tar depending on the lane departure marks, shadows, cracks in the road, direction. temporary or construction lane markings, or other road imperfections. This is normal system operation; the vehicle does not need service. Turn LDW off if these conditions continue. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (59,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-59
If the vehicle has a yellow fuel cap, available in some cities. If these malfunction indicator lamp may turn E85 or FlexFuel can be used in the gasolines comply with the on. If this occurs, see your dealer vehicle. See E85 or FlexFuel on previously described specification, for service. page 9-60. then they are acceptable to use. Use regular unleaded gasoline However, E85 (85% ethanol) and California Fuel meeting ASTM specification D4814 other fuels containing more than Requirements with a posted octane rating of 87 or 15% ethanol must be used only in If the vehicle is certified to meet higher. Do not use gasoline with an FlexFuel vehicles. California Emissions Standards, it is octane rating below 87, as it may designed to operate on fuels that cause engine damage and will lower { Caution meet California specifications. See fuel economy. Do not use fuel containing the underhood emission control Use of Seasonal Fuels methanol. It can corrode metal label. If this fuel is not available in Use summer and winter fuels in the parts in the fuel system and also states adopting California Emissions appropriate season. The fuels damage plastic and rubber parts. Standards, the vehicle will operate industry automatically modifies the That damage would not be satisfactorily on fuels meeting fuel for the appropriate season. covered under the vehicle federal specifications, but emission If fuel is left in the vehicle tank for warranty. control system performance might long periods of time, driving or be affected. The malfunction starting could be affected. Drive the indicator lamp could turn on and the Some gasolines, mainly high octane vehicle until the fuel is at one-half vehicle may not pass a smog-check racing gasolines, can contain an tank or less, then refuel with the test. See Malfunction Indicator octane-enhancing additive called current seasonal fuel. Lamp on page 5-16. If this occurs, methylcyclopentadienyl manganese return to your authorized dealer for Prohibited Fuels tricarbonyl (MMT). Do not use diagnosis. If it is determined that the gasolines and/or fuel additives with Gasolines containing oxygenates condition is caused by the type of MMT as they can reduce spark plug such as ethers and ethanol, as well fuel used, repairs may not be life and affect emission control as reformulated gasolines, are covered by the vehicle warranty. system performance. The Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (60,1) 7707475) - 2015 - CRC - 10/9/14
9-60 Driving and Operating
Fuels in Foreign gasoline additive recommended by the fuel if the ethanol content is General Motors. It is available at greater than 85%. Fuel mixtures that Countries your dealer. do not meet ASTM or CGSB If planning to drive in countries Do not use additives with E85 or specifications can affect driveability outside the U.S. or Canada, the FlexFuel. and could cause the malfunction proper fuel might be hard to find. indicator lamp to come on. Check regional auto club or fuel E85 or FlexFuel The starting characteristics of E85 retail brand websites for availability or FlexFuel make it unsuitable for in the country where driving. Never Vehicles with a yellow fuel cap can use when temperatures fall below use leaded gasoline, fuel containing use either unleaded gasoline or fuel −18°C (0°F). Use gasoline or add methanol, manganese, or any other containing up to 85% ethanol (E85). gasoline to the E85 or FlexFuel. fuel not recommended. Costly All other vehicles should use only repairs caused by use of improper the unleaded gasoline as described Because E85 or FlexFuel has less fuel would not be covered by the in Fuel on page 9-58. energy per liter (gallon) than vehicle warranty. gasoline, the vehicle will need to be The use of E85 or FlexFuel is refilled more often. See Filling the encouraged when the vehicle is Tank on page 9-61. Fuel Additives designed to use it. E85 or FlexFuel is made from renewable sources. To keep fuel systems clean, TOP { Caution TIER Detergent Gasoline is To help locate fuel stations that recommended. See Fuel on carry E85 or FlexFuel, the U.S. Some additives are not page 9-58. Department of Energy has an compatible with E85 or FlexFuel If TOP TIER Detergent Gasoline is alternative fuel website. See and can harm the vehicle's fuel not available, one bottle of Fuel www.afdc.energy.gov/afdc/locator/ system. Do not add anything to System Treatment PLUS added to stations. E85 or FlexFuel. Damage caused the fuel tank at every engine oil E85 or FlexFuel should meet ASTM by additives would not be covered change can help. Fuel System Specification D 5798 or CAN/ by the vehicle warranty. Treatment PLUS is the only CGSB–3.512 in Canada. Do not use Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (61,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-61
{ Caution Warning (Continued)
Do not use fuel containing . Keep sparks, flames, and methanol. It can corrode metal smoking materials away parts in the fuel system and also from fuel. damage plastic and rubber parts. . Do not leave the fuel pump That damage would not be unattended. covered under the vehicle . Do not reenter the vehicle warranty. while pumping fuel. . Keep children away from the Filling the Tank fuel pump and never let children pump fuel. The fuel cap is behind a hinged fuel { Warning door on the passenger side of the . Fuel can spray out if the fuel vehicle. To open the fuel door, push cap is opened too quickly. and release the rearward center Fuel vapors and fuel fires burn This spray can happen if the violently and can cause injury or edge of the door. If equipped, the tank is nearly full, and is fuel door is locked when the vehicle death. more likely in hot weather. doors are locked. Press K on the . To help avoid injuries to you Open the fuel cap slowly and RKE transmitter to unlock. and others, read and follow wait for any hiss noise to stop all the instructions on the fuel then unscrew the cap all Turn the fuel cap counterclockwise pump island. the way. to remove. While refueling, hang the fuel cap from the hook on the fuel . Turn off the engine when door. Reinstall the cap by turning it refueling. clockwise until it clicks. (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (62,1) 7707475) - 2015 - CRC - 10/9/14
9-62 Driving and Operating
Do not top off or overfill the tank and wait a few seconds before removing Caution (Continued) Warning (Continued) the nozzle. Clean fuel from painted . surfaces as soon as possible. See emissions system. See Place the container on the Exterior Care on page 10-85. Malfunction Indicator Lamp on ground. page 5-16. . Place the nozzle inside the fill { Warning opening of the container Filling a Portable Fuel before dispensing fuel, and If a fire starts while you are keep it in contact with the fill refueling, do not remove the Container opening until filling is nozzle. Shut off the flow of fuel by complete. shutting off the pump or by { Warning . Fill the container no more notifying the station attendant. than 95% full to allow for Filling a portable fuel container Leave the area immediately. expansion. while it is in the vehicle can cause fuel vapors that can ignite either . Do not smoke, light matches, by static electricity or other or use lighters while { Caution means. You or others could be pumping fuel. badly burned and the vehicle . Avoid using cell phones or If a new fuel cap is needed, be could be damaged. Always: other electronic devices. sure to get the right type of cap from your dealer. The wrong type . Use approved fuel of fuel cap may not fit properly, containers. may cause the malfunction . Remove the container from indicator lamp to light, and could the vehicle, trunk, or pickup damage the fuel tank and bed before filling. (Continued) (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (63,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-63
. Do not tow a trailer during the Trailer Towing first 800 km (500 mi) to prevent { Warning damage to the engine, axle, General Towing or other parts. When towing a trailer, exhaust gases may collect at the rear of Information . Then during the first 800 km the vehicle and enter if the Only use towing equipment that has (500 mi) of trailer towing, do not drive over 80 km/h (50 mph) and liftgate, trunk/hatch, or rear-most been designed for the vehicle. window is open. Contact your dealer or trailering do not make starts at full throttle. dealer for assistance with preparing . Vehicles can tow in D (Drive). When towing a trailer: the vehicle for towing a trailer. Read Shift the transmission to a lower . Do not drive with the liftgate, the entire section before towing a gear if the transmission shifts trunk/hatch, or rear-most trailer. too often under heavy loads and/ window open. or hilly conditions. For towing a disabled vehicle, see . Fully open the air outlets on Towing the Vehicle on page 10-82. . Do not use Adaptive Cruise or under the instrument For towing the vehicle behind Control when towing. panel. another vehicle such as a motor . home, see Recreational Vehicle The Automatic Collision . Also adjust the climate Towing on page 10-83. Preparation System should be control system to a setting set to Off when towing. See that brings in only outside air. Driving Characteristics Active Emergency Braking See “Climate Control System on page 9-53. Systems in the Index. and Towing Tips ” . Turn off Park Assist when For more information about Driving with a Trailer towing. Carbon Monoxide, see Engine When towing a trailer: Exhaust on page 9-26. . Become familiar with the state and local laws that apply to trailer towing. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (64,1) 7707475) - 2015 - CRC - 10/9/14
9-64 Driving and Operating
Towing a trailer requires a certain Passing amount of experience. The Caution (Continued) More passing distance is needed combination you are driving is when towing a trailer. The longer and not as responsive as the The vehicle could be damaged. combination will not accelerate as vehicle itself. Get acquainted with Avoid making very sharp turns quickly and is longer so it is the handling and braking of the rig while trailering. necessary to go much farther before setting out for the open road. beyond the passed vehicle before Before starting, check all trailer hitch returning to the lane. When turning with a trailer, make parts and attachments, safety wider turns than normal. Do this so chains, electrical connectors, lamps, Backing Up the trailer will not strike soft tires, and mirrors. If the trailer has Hold the bottom of the steering shoulders, curbs, road signs, trees, electric brakes, start the wheel with one hand. To move the or other objects. Avoid jerky or combination moving and then apply trailer to the left, move that hand to sudden maneuvers. Signal well in the trailer brake controller by hand the left. To move the trailer to the advance. to be sure the brakes work. right, move your hand to the right. If the trailer turn signal bulbs burn During the trip, check occasionally Always back up slowly and, out, the arrows on the instrument to be sure that the load is secure if possible, have someone cluster will still flash for turns. It is and the lamps and any trailer guide you. important to check occasionally to brakes still work. be sure the trailer bulbs are still Making Turns working. Following Distance Driving on Grades Stay at least twice as far behind the { Caution Reduce speed and shift to a lower vehicle ahead as you would when Making very sharp turns while driving the vehicle without a trailer. gear before starting down a long or trailering could cause the trailer to This can help to avoid heavy steep downgrade. If the come in contact with the vehicle. braking and sudden turns. transmission is not shifted down, the (Continued) brakes might get hot and no longer work well. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (65,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-65
Vehicles can tow in D (Drive). Shift Parking on Hills 4. Reapply the brake pedal. Then the transmission to a lower gear if apply the parking brake and shift the transmission shifts too often { Warning into P (Park). under heavy loads and/or hilly 5. Release the brake pedal. conditions. Parking the vehicle on a hill with When towing at high altitude on the trailer attached can be Leaving After Parking on a Hill steep uphill grades, consider the dangerous. If something goes 1. Apply and hold the brake pedal. following: Engine coolant will boil at wrong, the rig could start to move. 2. Start the engine. a lower temperature than at normal People can be injured, and both altitudes. If the engine is turned off the vehicle and the trailer can be 3. Shift into a gear. immediately after towing at high damaged. When possible, always 4. Release the parking brake. altitude on steep uphill grades, the park the rig on a flat surface. vehicle may show signs similar to 5. Let up on the brake pedal. engine overheating. To avoid this, If parking the rig on a hill: 6. Drive slowly until the trailer is let the engine run while parked, clear of the chocks. preferably on level ground, with the 1. Press the brake pedal, but do automatic transmission in P (Park) not shift into P (Park) yet. Turn 7. Stop and have someone pick up for a few minutes before turning the the wheels into the curb if facing and store the chocks. engine off. If the overheat warning downhill or into traffic if facing Maintenance when Trailer comes on, see Engine Overheating uphill. Towing on page 10-21. 2. Have someone place chocks The vehicle needs service more under the trailer wheels. often when pulling a trailer. See 3. When the wheel chocks are in Maintenance Schedule on place, release the regular brakes page 11-2. Things that are until the chocks absorb the load. especially important in trailer operation are automatic transmission fluid, engine oil, axle Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (66,1) 7707475) - 2015 - CRC - 10/9/14
9-66 Driving and Operating
lubricant, belts, cooling system, and how much the vehicle is used to pull curb weight of the vehicle, any brake system. It is a good idea to a trailer are all important. It can cargo carried in it, and the people inspect these before and during depend on any special equipment who will be riding in the vehicle. the trip. on the vehicle, and the amount of If there are a lot of options, Check periodically to see that all tongue weight the vehicle can carry. equipment, passengers, or cargo in hitch nuts and bolts are tight. See “Weight of the Trailer Tongue” the vehicle, it will reduce the tongue later in this section. weight the vehicle can carry, which Maximum trailer weight is calculated will also reduce the trailer weight the Trailer Towing (Except vehicle can tow. If towing a trailer, eAssist) assuming only the driver is in the tow vehicle and it has all the the tongue load must be added to Before pulling a trailer, three required trailering equipment. The the GVW because the vehicle will important considerations have to do weight of additional optional be carrying that weight, too. See with weight: equipment, passengers, and cargo Vehicle Load Limits on page 9-10. . Weight of the trailer. in the tow vehicle must be subtracted from the maximum trailer . Weight of the trailer tongue. weight. . Total weight on your vehicle's Ask your dealer for trailering tires. information or advice, or write us at Weight of the Trailer our Customer Assistance Offices. See Customer Assistance Offices How heavy can a trailer safely be? on page 13-3. It should never weigh more than Weight of the Trailer Tongue 454 kg (1,000 lb). But even that can be too heavy. The tongue load (1) of any trailer is an important weight to measure It depends on how the rig is used. because it affects the total gross For example, speed, altitude, road weight of the vehicle. The Gross grades, outside temperature, and Vehicle Weight (GVW) includes the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (67,1) 7707475) - 2015 - CRC - 10/9/14
Driving and Operating 9-67
The trailer tongue (1) should weigh Towing Equipment Safety Chains 10 % of the total loaded trailer Always attach chains between the weight (2). Hitches vehicle and the trailer. Cross the After loading the trailer, weigh the Use the correct hitch equipment. safety chains under the tongue of trailer and then the tongue, See your dealer or a hitch dealer for the trailer to help prevent the tongue separately, to see if the weights are assistance. from contacting the road if it proper. If they are not, adjustments . The rear bumper on the vehicle becomes separated from the hitch. might be made by moving some is not intended for hitches. Do Leave enough slack so the rig can items around in the trailer. not attach rental hitches or other turn. Never allow safety chains to drag on the ground. Total Weight on Your Vehicle's bumper-type hitches to it. Use Tires only a frame-mounted hitch that Trailer Brakes does not attach to the bumper. Be sure the vehicle's tires are Does the trailer have its own inflated to the upper limit for cold . Will any holes be made in the brakes? Be sure to read and follow tires. These numbers can be found body of the vehicle when the the instructions for the trailer brakes on the Tire and Loading Information trailer hitch is installed? If so, so they are installed, adjusted, and label. See Vehicle Load Limits on seal the holes when the hitch is maintained properly. removed. If the holes are not page 9-10. Make sure not to go over Because the vehicle has antilock the GVW limit for the vehicle, sealed, dirt, water, and deadly carbon monoxide (CO) from the brakes, do not tap into the vehicle's including the weight of the trailer brake system. If this is done, both tongue. exhaust can get into the vehicle. See Engine Exhaust on brake systems will not work well or at all. Trailer Towing (eAssist) page 9-26. The vehicle is neither designed nor intended to tow a trailer. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (68,1) 7707475) - 2015 - CRC - 10/9/14
9-68 Driving and Operating
Conversions and Add-Ons Add-On Electrical Equipment
{ Caution
Some electrical equipment can damage the vehicle or cause components to not work and would not be covered by the warranty. Always check with your dealer before adding electrical equipment.
Add-on equipment can drain the vehicle's 12-volt battery, even if the vehicle is not operating. The vehicle has an airbag system. Before attempting to add anything electrical to the vehicle, see Servicing the Airbag-Equipped Vehicle on page 3-31 and Adding Equipment to the Airbag-Equipped Vehicle on page 3-31. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-1
Power Steering Fluid (2.4L High Intensity Discharge Vehicle Care L4 Engine and 3.6L (HID) Lighting ...... 10-31 V6 Engine with FWD) . . . . . 10-23 LED Lighting ...... 10-31 Power Steering Fluid (3.6L Headlamps, Front Turn General Information V6 Engine with AWD) . . . . . 10-23 Signal and Parking General Information ...... 10-2 Washer Fluid ...... 10-24 Lamps ...... 10-32 California Proposition Brakes ...... 10-25 Taillamps, Turn Signal, 65 Warning ...... 10-3 Brake Fluid ...... 10-26 Stoplamps, and Back-Up California Perchlorate Battery ...... 10-27 Lamps ...... 10-33 Materials Requirements . . . . 10-3 All-Wheel Drive ...... 10-28 License Plate Lamp ...... 10-33 Accessories and Starter Switch Check ...... 10-28 Replacement Bulbs ...... 10-34 Modifications ...... 10-3 Automatic Transmission Shift Lock Control Function Electrical System Vehicle Checks High Voltage Devices and Doing Your Own Check ...... 10-29 Ignition Transmission Lock Wiring ...... 10-34 Service Work ...... 10-4 Electrical System Hood ...... 10-5 Check ...... 10-29 Park Brake and P (Park) Overload ...... 10-35 Engine Compartment Fuses and Circuit Overview ...... 10-6 Mechanism Check ...... 10-29 Wiper Blade Breakers ...... 10-35 Engine Oil ...... 10-11 Engine Compartment Fuse Engine Oil Life System . . . . . 10-13 Replacement ...... 10-30 Windshield Replacement . . . 10-30 Block ...... 10-36 Automatic Transmission Instrument Panel Fuse Fluid ...... 10-15 Headlamp Aiming Block ...... 10-40 Engine Air Cleaner/Filter . . . . 10-15 Headlamp Aiming ...... 10-31 Cooling System ...... 10-17 Wheels and Tires Engine Coolant ...... 10-19 Bulb Replacement Tires ...... 10-42 Engine Overheating ...... 10-21 Bulb Replacement ...... 10-31 All-Season Tires ...... 10-43 Overheated Engine Halogen Bulbs ...... 10-31 Winter Tires ...... 10-43 Protection Summer Tires ...... 10-43 Operating Mode ...... 10-23 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
10-2 Vehicle Care
Tire Sidewall Labeling ...... 10-44 Storing the Tire Sealant and General Information Tire Designations ...... 10-46 Compressor Kit ...... 10-72 Tire Terminology and Tire Changing ...... 10-72 For service and parts needs, visit Definitions ...... 10-47 Compact Spare Tire ...... 10-77 your dealer. You will receive Tire Pressure ...... 10-50 genuine GM parts and GM-trained Tire Pressure for High-Speed Jump Starting and supported service people. Operation ...... 10-51 Jump Starting (On-board with eAssist Only) ...... 10-78 Genuine GM parts have one of Tire Pressure Monitor these marks: System ...... 10-51 Jump Starting (with or Tire Pressure Monitor without eAssist) ...... 10-79 Operation ...... 10-52 Towing the Vehicle Tire Inspection ...... 10-56 Towing the Vehicle ...... 10-82 Tire Rotation ...... 10-56 Recreational Vehicle When It Is Time for New Towing ...... 10-83 Tires ...... 10-57 Buying New Tires ...... 10-58 Appearance Care Different Size Tires and Exterior Care ...... 10-85 Wheels ...... 10-60 Interior Care ...... 10-89 Uniform Tire Quality Floor Mats ...... 10-93 Grading ...... 10-60 Wheel Alignment and Tire Balance ...... 10-62 Wheel Replacement ...... 10-62 Tire Chains ...... 10-63 If a Tire Goes Flat ...... 10-63 Tire Sealant and Compressor Kit ...... 10-65 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-3
California Proposition For additional information, see Damage to vehicle components 65 Warning www.dtsc.ca.gov/hazardouswaste/ resulting from modifications or the perchlorate. installation or use of non‐GM Most motor vehicles, including this certified parts, including control one, contain and/or emit chemicals Accessories and module or software modifications, is known to the State of California to Modifications not covered under the terms of the cause cancer and birth defects or vehicle warranty and may affect other reproductive harm. Engine Adding non‐dealer accessories or remaining warranty coverage for exhaust, many parts and systems, making modifications to the vehicle affected parts. can affect vehicle performance and many fluids, and some component GM Accessories are designed to safety, including such things as wear by-products contain and/or complement and function with other airbags, braking, stability, ride and emit these chemicals. systems on the vehicle. See your handling, emissions systems, dealer to accessorize the vehicle aerodynamics, durability, and California Perchlorate using genuine GM Accessories electronic systems like antilock installed by a dealer technician. Materials Requirements brakes, traction control, and stability Certain types of automotive control. These accessories or Also, see Adding Equipment to the applications, such as airbag modifications could even cause Airbag-Equipped Vehicle on initiators, safety belt pretensioners, malfunction or damage not covered page 3-31. and lithium batteries contained in by the vehicle warranty. Remote Keyless Entry transmitters, may contain perchlorate materials. Special handling may be necessary. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
10-4 Vehicle Care
Vehicle Checks All Vehicles This vehicle has an airbag system. Before attempting to do your own { Warning service work, see Airbag System Doing Your Own Check on page 3-32. Service Work It can be dangerous to work on Keep a record with all parts receipts your vehicle if you do not have eAssist Vehicles Only and list the mileage and the date of the proper knowledge, service any service work performed. See manual, tools, or parts. Always { Warning Maintenance Records on follow owner manual procedures page 11-14. Never try to do your own service and consult the service manual on eAssist components. You can for your vehicle before doing any { Caution be injured and the vehicle can be service work. damaged if you try to do your own Even small amounts of service work. Service and repair If doing some of your own service contamination can cause damage of these eAssist components work, use the proper service to vehicle systems. Do not allow should only be performed by a manual. It tells you much more contaminants to contact the fluids, trained service technician with the about how to service the vehicle reservoir caps, or dipsticks. proper knowledge and tools. than this manual can. To order the proper service manual, see Service Publications Ordering Information on page 13-11. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (5,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-5
Hood To close the hood: To open the hood: 1. Before closing the hood, be sure all the filler caps are on properly. 2. Lower the hood 30 cm (12 in) above the vehicle and release it so it fully latches. Check to make sure the hood is closed and repeat the process if necessary.
2. Go to the front of the vehicle and push the secondary hood release handle toward the driver side of the vehicle. 1. Pull the interior hood release handle located to the left of the 3. Lift the hood. steering column below the instrument panel. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (6,1) 7707475) - 2015 - CRC - 10/9/14
10-6 Vehicle Care
Engine Compartment Overview
2.4L L4 Engine Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (7,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-7
1. Engine Air Cleaner/Filter on 6. High Voltage Cable (Orange 10. Coolant Surge Tank and page 10-15. Color). Pressure Cap. See Engine 2. Engine Cover. 7. Transmission Fluid Cap. See Coolant on page 10-19. 3. Engine Cooling Fans (Out of Automatic Transmission Fluid on 11. Engine Compartment Fuse View). See Cooling System on page 10-15. Block on page 10-36. page 10-17. 8. Brake Master Cylinder 12. Windshield Washer Fluid 4. Engine Oil Fill Cap. See Engine Reservoir. See Brakes on Reservoir. See Washer Fluid Oil on page 10-11. page 10-25. on page 10-24. 5. Engine Oil Dipstick (Out of 9. Battery (Under Cover). See View). See Engine Oil on Battery on page 10-27. page 10-11. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (8,1) 7707475) - 2015 - CRC - 10/9/14
10-8 Vehicle Care
3.6L V6 Engine AWD Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (9,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-9
1. Engine Air Cleaner/Filter on 5. Engine Cover. 9. Battery Cover. See Battery on page 10-15. 6. Transmission Fluid Cap and page 10-27. 2. Power Steering Reservoir and Dipstick. See Automatic 10. Engine Compartment Fuse Cap. See Power Steering Fluid Transmission Fluid on Block on page 10-36. (2.4L L4 Engine and 3.6L page 10-15. 11. Windshield Washer Fluid V6 Engine with FWD) on 7. Brake Master Cylinder Reservoir. See Washer Fluid page 10-23 or Power Steering Reservoir. See Brakes on on page 10-24. Fluid (3.6L V6 Engine with AWD) page 10-25. on page 10-23. 8. Coolant Surge Tank and 3. Engine Oil Fill Cap. See Engine Pressure Cap. See Engine Oil on page 10-11. Coolant on page 10-19. 4. Engine Oil Dipstick. See Engine Oil on page 10-11. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (10,1) 7707475) - 2015 - CRC - 10/9/14
10-10 Vehicle Care
3.6L V6 Engine FWD Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (11,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-11
1. Engine Air Cleaner/Filter on Engine Oil Checking Engine Oil page 10-15. To ensure proper engine It is a good idea to check the engine 2. Engine Oil Fill Cap. See Engine performance and long life, careful oil level at each fuel fill. In order to Oil on page 10-11. attention must be paid to engine oil. get an accurate reading, the vehicle 3. Engine Oil Dipstick. See Engine Following these simple, but must be on level ground. The Oil on page 10-11. important steps will help protect engine oil dipstick handle is a loop. your investment: See Engine Compartment Overview 4. Engine Cover. on page 10-6 for the location of the . Always use engine oil approved 5. Transmission Fluid Cap and engine oil dipstick. to the proper specification and of Dipstick. See Automatic the proper viscosity grade. See Obtaining an accurate oil level Transmission Fluid on Selecting the Right Engine Oil reading is essential: page 10-15. “ ” in this section. 1. If the engine has been running 6. Brake Master Cylinder . Check the engine oil level recently, turn off the engine and Reservoir. See Brakes on regularly and maintain the allow several minutes for the oil page 10-25. proper oil level. See “Checking to drain back into the oil pan. 7. Coolant Surge Tank and Engine Oil” and “When to Add Checking the oil level too soon Pressure Cap. See Engine Engine Oil” in this section. after engine shutoff will not Coolant on page 10-19. provide an accurate oil level . Change the engine oil at the reading. 8. Battery Cover. See Battery on appropriate time. See Engine Oil page 10-27. Life System on page 10-13. { Warning 9. Engine Compartment Fuse . Always dispose of engine oil Block on page 10-36. properly. See “What to Do with The engine oil dipstick handle 10. Windshield Washer Fluid Used Oil” in this section. may be hot; it could burn you. Reservoir. See Washer Fluid Use a towel or glove to touch the on page 10-24. dipstick handle. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (12,1) 7707475) - 2015 - CRC - 10/9/14
10-12 Vehicle Care
2. Pull out the dipstick and wipe it what kind of oil to use. For engine See Engine Compartment Overview with a clean paper towel or cloth, oil crankcase capacity, see on page 10-6 for the location of the then push it back in all the way. Capacities and Specifications on engine oil fill cap. Remove it again, keeping the tip page 12-2. Add enough oil to put the level down, and check the level. somewhere in the proper operating When to Add Engine Oil { Caution range. Push the dipstick all the way back in when through. Do not add too much oil. Oil levels above or below the Selecting the Right Engine Oil acceptable operating range Selecting the right engine oil shown on the dipstick are harmful depends on both the proper oil to the engine. If you find that you specification and viscosity grade. have an oil level above the See Recommended Fluids and 2.4L L4 Engine operating range, i.e., the engine Lubricants on page 11-12. has so much oil that the oil level gets above the cross-hatched Specification area that shows the proper Ask for and use engine oils that operating range, the engine could meet the dexos1™ specification. be damaged. You should drain Engine oils that have been out the excess oil or limit driving approved by GM as meeting the dexos1 specification are marked 3.6L V6 Engine of the vehicle and seek a service professional to remove the with the dexos1 approved logo. See If the oil is below the cross-hatched excess amount of oil. www.gmdexos.com. area at the tip of the dipstick, add 1 L (1 qt) of the recommended oil and then recheck the level. See “Selecting the Right Engine Oil” in this section for an explanation of Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (13,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-13
temperatures. When selecting an oil properly dispose of clothing or rags of the appropriate viscosity grade, containing used engine oil. See the always select an oil of the correct manufacturer's warnings about the specification. See “Specification” use and disposal of oil products. earlier in this section for more Used oil can be a threat to the information. environment. If you change your Engine Oil Additives/Engine own oil, be sure to drain all the oil { Caution Oil Flushes from the filter before disposal. Never dispose of oil by putting it in the Failure to use the recommended Do not add anything to the oil. The trash or pouring it on the ground, engine oil can result in engine recommended oils meeting the into sewers, or into streams or damage not covered by the dexos1 specification are all that is bodies of water. Recycle it by taking vehicle warranty. Check with your needed for good performance and it to a place that collects used oil. dealer or service provider on engine protection. whether the oil is approved to the Engine oil system flushes are not Engine Oil Life System dexos1 specification. recommended and could cause engine damage not covered by the When to Change Engine Oil Viscosity Grade vehicle warranty. This vehicle has a computer system that indicates when to change the Use SAE 5W-30 viscosity grade What to Do with Used Oil engine oil and filter. This is based engine oil. Used engine oil contains certain on a combination of factors which Cold Temperature Operation: In an elements that can be unhealthy for include engine revolutions, engine area of extreme cold, where the your skin and could even cause temperature, and miles driven. temperature falls below −29°C cancer. Do not let used oil stay on Based on driving conditions, the (−20°F), an SAE 0W-30 oil may be your skin for very long. Clean your mileage at which an oil change is used. An oil of this viscosity grade skin and nails with soap and water, indicated can vary considerably. will provide easier cold starting for or a good hand cleaner. Wash or the engine at extremely low Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (14,1) 7707475) - 2015 - CRC - 10/9/14
10-14 Vehicle Care
For the oil life system to work If the system is ever reset 2. Press V on the DIC controls and properly, the system must be reset accidentally, the oil must be hold down for a few seconds to every time the oil is changed. changed at 5 000 km (3,000 mi) clear the CHANGE ENGINE OIL When the system has calculated since the last oil change. SOON message and reset the that oil life has been diminished, it Remember to reset the oil life oil life at 100%. system whenever the oil is changed. indicates that an oil change is Be careful not to reset the oil life necessary. A CHANGE ENGINE How to Reset the Engine Oil display accidentally at any time OIL SOON message comes on. See Life System other than after the oil is Engine Oil Messages on page 5-38. changed. It cannot be reset Reset the system whenever the Change the oil as soon as possible accurately until the next oil engine oil is changed so that the within the next 1 000 km (600 mi). change. It is possible that, if driving under system can calculate the next the best conditions, the oil life engine oil change. To reset the The system is reset when the system might indicate that an oil system: CHANGE ENGINE OIL SOON message is off. change is not necessary for up to a 1. Using the DIC controls on the year. The engine oil and filter must right side of the steering wheel, If the CHANGE ENGINE OIL SOON be changed at least once a year display REMAINING OIL LIFE message comes back on when the and at this time the system must be on the DIC. See Driver vehicle is started, the engine oil life reset. Your dealer has trained Information Center (DIC) on system has not been reset. Repeat service people who will perform this page 5-28. When remaining oil the procedure. work and reset the system. It is also life is low, the CHANGE important to check the oil regularly ENGINE OIL SOON message over the course of an oil drain will appear on the display. See interval and keep it at the proper Engine Oil Messages on level. page 5-38. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (15,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-15
Automatic Transmission Change the fluid at the intervals How to Inspect the Engine Air listed in Maintenance Schedule on Cleaner/Filter Fluid page 11-2, and be sure to use the To inspect the air cleaner/filter, How to Check Automatic fluid listed in Recommended Fluids and Lubricants on page 11-12. remove the filter from the vehicle Transmission Fluid and lightly shake the filter to release It is not necessary to check the Engine Air Cleaner/Filter loose dust and dirt. If the filter transmission fluid level. remains covered with dirt, a new A transmission fluid leak is the only The engine air cleaner/filter is in the filter is required. reason for fluid loss. If a leak engine compartment on the occurs, take the vehicle to your passenger side of the vehicle. See dealer service department and have Engine Compartment Overview on it repaired as soon as possible. page 10-6. There is a special procedure for When to Inspect the Engine Air checking and changing the Cleaner/Filter transmission fluid. Because this procedure is difficult, you should Inspect the air cleaner/filter at the have this done at your dealer scheduled maintenance intervals service department. Contact your and replace it at the first oil change dealer for additional information or after each 80 000 km (50,000 mi) the procedure can be found in the interval. See Maintenance Schedule on page 11-2. If you are driving in service manual. To purchase a 2.4L L4 Engine service manual, see Service dusty/dirty conditions, inspect the Publications Ordering Information filter at each engine oil change. 1. Screws on page 13-11. 2. Air Duct Clamp 3. Electrical Connector Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (16,1) 7707475) - 2015 - CRC - 10/9/14
10-16 Vehicle Care
To inspect or replace the engine air 4. Remove the screws (3) on top of cleaner/filter: the engine air cleaner/filter 1. Open the hood. See Hood on housing. page 10-5. 5. Lift the filter cover housing away 2. Disconnect the outlet duct by from the engine air cleaner/filter loosening the air duct clamp (2). housing. 3. Disconnect the electrical 6. Pull out the filter. connector (3). 7. Inspect or replace the engine air 4. Remove the screws (1) on top of cleaner/filter. the engine air cleaner/filter 8. Reverse Steps 2–4 to reinstall housing. the filter cover housing. 3.6L V6 Engine AWD 5. Lift the filter cover housing away from the engine air cleaner/filter 1. Electrical Connector housing. 2. Air Duct Clamp 6. Pull out the filter. 3. Screws 7. Inspect or replace the engine air To inspect or replace the engine air cleaner/filter. cleaner/filter: 8. Reverse Steps 2–4 to reinstall 1. Open the hood. See Hood on the filter cover housing. page 10-5. 2. Disconnect the outlet duct by loosening the air duct clamp (2). 3. Disconnect the electrical 3.6L V6 Engine FWD connector (1). Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (17,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-17
1. Electrical Connector 8. Inspect or replace the engine air Cooling System 2. Air Duct Clamp cleaner/filter. 3. Screws The cooling system allows the 9. Reverse Steps 2–5 to reinstall engine to maintain the correct 4. Secondary Air Hose the filter cover housing. working temperature. To inspect or replace the engine air cleaner/filter: { Warning
1. Open the hood. See Hood on Operating the engine with the air page 10-5. cleaner/filter off can cause you or 2. Disconnect the outlet duct by others to be burned. The air loosening the air duct clamp (2). cleaner not only cleans the air; it 3. Disconnect the electrical helps to stop flames if the engine connector (1). backfires. Use caution when working on the engine and do not 4. Remove the screws (3) on top of drive with the air cleaner/filter off. the engine air cleaner/filter housing. 5. Disconnect the secondary air 2.4L L4 Engine hose (4). { Caution 1. Engine Cooling Fans (Out 6. Lift the filter cover housing away If the air cleaner/filter is off, dirt of View) from the engine air cleaner/filter can easily get into the engine, 2. Coolant Surge Tank and housing. which could damage it. Always Pressure Cap 7. Pull out the filter. have the air cleaner/filter in place when you are driving. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (18,1) 7707475) - 2015 - CRC - 10/9/14
10-18 Vehicle Care
{ Warning
Heater and radiator hoses, and other engine parts, can be very hot. Do not touch them. If you do, you can be burned. Do not run the engine if there is a leak. If you run the engine, it could lose all coolant. That could cause an engine fire, and you could be burned. Get any leak 3.6L V6 Engine AWD 3.6L V6 Engine FWD fixed before you drive the vehicle. 1. Engine Cooling Fans (Out 1. Engine Cooling Fans (Out of View) of View) 2. Coolant Surge Tank and 2. Coolant Surge Tank and { Caution Pressure Cap Pressure Cap Using coolant other than ® { Warning DEX-COOL can cause premature engine, heater core, An electric engine cooling fan or radiator corrosion. In addition, under the hood can start up even the engine coolant could require when the engine is not running changing sooner. Any repairs and can cause injury. Keep would not be covered by the hands, clothing, and tools away (Continued) from any underhood electric fan. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (19,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-19
What to Use This mixture: Caution (Continued) . Gives freezing protection down vehicle warranty. Always use { Warning to −37°C (−34°F), outside DEX-COOL (silicate-free) coolant temperature. Adding only plain water or some in the vehicle. . other liquid to the cooling system Gives boiling protection up to can be dangerous. Plain water 129°C (265°F), engine temperature. Engine Coolant and other liquids, can boil before the proper coolant mixture will. . Protects against rust and The cooling system in the vehicle is The coolant warning system is set corrosion. filled with DEX-COOL® engine for the proper coolant mixture. . coolant mixture. See Recommended Will not damage aluminum parts. With plain water or the wrong Fluids and Lubricants on page 11-12 . Helps keep the proper engine mixture, the engine could get too and Maintenance Schedule on temperature. page 11-2. hot but you would not get the overheat warning. The engine The following explains the cooling could catch fire and you or others { Caution system and how to check and add could be burned. Use a 50/ coolant when it is low. If there is a If improper coolant mixture, 50 mixture of clean, drinkable problem with engine overheating, inhibitors, or additives are used in water and DEX-COOL coolant. see Engine Overheating on the vehicle cooling system, the page 10-21. engine could overheat and be Use a 50/50 mixture of clean, damaged. Too much water in the drinkable water and DEX-COOL mixture can freeze and crack coolant. If using this mixture, engine cooling parts. The repairs nothing else needs to be added. would not be covered by the vehicle warranty. Use only the (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (20,1) 7707475) - 2015 - CRC - 10/9/14
10-20 Vehicle Care
If coolant is visible but the coolant Caution (Continued) level is not at or above the mark { Caution pointed to, add a 50/50 mixture of proper mixture of engine coolant clean, drinkable water and This vehicle has a specific for the cooling system. See DEX-COOL coolant. coolant fill procedure. Failure to Recommended Fluids and follow this procedure could cause Lubricants on page 11-12. Be sure the cooling system is cool the engine to overheat and be before this is done. severely damaged. Never dispose of engine coolant by If no coolant is visible in the coolant putting it in the trash, pouring it on surge tank, add coolant as follows: the ground, or into sewers, streams, How to Add Coolant to the { Warning or bodies of water. Have the coolant Coolant Surge Tank changed by an authorized service Steam and scalding liquids from a center, familiar with legal { Warning hot cooling system can blow out requirements regarding used and burn you badly. Never turn coolant disposal. This will help You can be burned if you spill the cap when the cooling system, protect the environment and your coolant on hot engine parts. including the surge tank pressure health. Coolant contains ethylene glycol cap, is hot. Wait for the cooling Checking Coolant and it will burn if the engine parts system and surge tank pressure cap to cool. The vehicle must be on a level are hot enough. Do not spill surface when checking the coolant coolant on a hot engine. level. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, do not do anything else until it cools down. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (21,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-21
reaches the mark pointed to on the front of the coolant surge tank. 5. Replace the cap tightly.
{ Caution The coolant surge tank pressure cap can be removed when the If the pressure cap is not tightly cooling system, including the surge installed, coolant loss and tank pressure cap and upper possible engine damage may radiator hose, is no longer hot. occur. Be sure the cap is properly 1. Turn the pressure cap slowly and tightly secured. counterclockwise. If a hiss is 3. Fill the coolant surge tank with heard, wait for that to stop. the proper mixture to the mark A hiss means there is still some pointed to on the front of the Engine Overheating pressure left. coolant surge tank. There is a coolant temperature 2. Keep turning the cap and 4. With the coolant surge tank cap gauge and a engine coolant remove it. off, start the engine and let it run temperature warning light on the until the upper radiator hose instrument cluster that indicate an starts getting hot. Watch out for overheated engine condition. See the engine cooling fans. By this Engine Coolant Temperature Gauge time, the coolant level inside the on page 5-13 and Engine Coolant coolant surge tank may be Temperature Warning Light on lower. If the level is lower, add page 5-22. more of the proper mixture to the coolant surge tank until the level Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (22,1) 7707475) - 2015 - CRC - 10/9/14
10-22 Vehicle Care
If the decision is made not to lift the If Steam Is Coming from the If the overheat warning displays with hood when this warning appears, Engine Compartment no sign of steam: get service help right away. See 1. Turn the air conditioning off. Roadside Assistance Program on See Overheated Engine Protection page 13-5. Operating Mode on page 10-23 for 2. Turn the heater on to the highest information on driving to a safe temperature and to the highest If the decision is made to lift the place in an emergency. fan speed. Open the windows as hood, make sure the vehicle is necessary. parked on a level surface. If No Steam Is Coming from the Engine Compartment 3. When it is safe to do so, pull off Then check to see if the engine the road, shift to P (Park) or If an engine overheat warning is cooling fans are running. If the N (Neutral), and let the displayed but no steam can be seen engine is overheating, the fans engine idle. should be running. If not, do not or heard, the problem might not be continue to run the engine and have too serious. Sometimes the engine If the temperature overheat gauge is the vehicle serviced. can get a little too hot when the no longer in the overheat zone or an vehicle: engine coolant temperature warning light no longer displays, the vehicle { Caution . Climbs a long hill on a hot day. can be driven. Continue to drive the Running the engine without . Stops after high-speed driving. vehicle slowly for about 10 minutes. coolant may cause damage or a . Idles for long periods in traffic. Keep a safe vehicle distance from fire. Vehicle damage would not be the vehicle in front. If the warning . Tows a trailer. covered by the vehicle warranty. does not come back on, continue to drive normally and have the cooling system checked for proper fill and function. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (23,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-23
If the warning continues, pull over, The engine coolant temperature Power Steering Fluid stop, and park the vehicle warning light comes on the right away. instrument panel, to indicate the (3.6L V6 Engine with AWD) If there is no sign of steam, idle the vehicle has entered overheated engine for three minutes while engine protection operating mode. parked. If the warning is still The temperature gauge also displayed, turn off the engine until it indicates an overheat condition cools down. Also, see Overheated exists. Driving extended distances Engine Protection Operating Mode and/or towing a trailer in the on page 10-23. overheat protection mode should be avoided. See Engine Compartment Overview Overheated Engine Power Steering Fluid Protection on page 10-6 for information on the (2.4L L4 Engine and 3.6L location of the power steering fluid Operating Mode V6 Engine with FWD) reservoir. This emergency operating mode The vehicle has electric power When to Check Power Steering allows the vehicle to be driven to a Fluid safe place in an emergency steering and does not use power situation. If an overheated engine steering fluid. It is not necessary to regularly condition exists, an overheat check power steering fluid unless a protection mode which alternates leak is suspected in the system or firing groups of cylinders helps an unusual noise is heard. A fluid prevent engine damage. In this loss in this system could indicate a mode, there is significant loss in problem. Have the system inspected power and engine performance. and repaired. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (24,1) 7707475) - 2015 - CRC - 10/9/14
10-24 Vehicle Care
How to Check Power Steering Washer Fluid Fluid What to Use Check the level when the engine is cool. When windshield washer fluid is needed, be sure to read the To check the power steering fluid: manufacturer's instructions before 1. Wipe the cap and the top of the use. If operating the vehicle in an reservoir clean. area where the temperature may fall below freezing, use a fluid that has 2. Unscrew the cap and pull it sufficient protection against straight up. freezing. 3. Wipe the dipstick with a Adding Washer Fluid clean rag. The fluid level should be between 4. Replace the cap and completely MIN and MAX on the dipstick. tighten it. What to Use 5. Remove the cap again and look To determine what kind of fluid to at the fluid level on the dipstick. use, see Recommended Fluids and Lubricants on page 11-12. Always use the proper fluid. Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview on page 10-6 for reservoir location. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (25,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-25
Brakes Some driving conditions or climates { Caution can cause a brake squeal when the Disc brake pads have built-in wear brakes are first applied or lightly . Do not use engine coolant indicators that make a high-pitched applied. This does not mean (antifreeze) in the windshield warning sound when the brake pads something is wrong with the brakes. washer. It can damage the are worn and new pads are needed. windshield washer system The sound can come and go or be Properly torqued wheel nuts are and paint. heard all the time when the vehicle necessary to help prevent brake pulsation. When tires are rotated, . Do not mix water with is moving, except when applying the brake pedal firmly. inspect brake pads for wear and ready-to-use washer fluid. evenly tighten wheel nuts in the Water can cause the solution proper sequence to torque to freeze and damage the { Warning specifications. See Capacities and washer fluid tank and other Specifications on page 12-2. parts of the washer system. The brake wear warning sound means that soon the brakes will Brake pads should be replaced as . When using concentrated not work well. That could lead to complete sets. washer fluid, follow the manufacturer instructions for a crash. When the brake wear Brake Pedal Travel adding water. warning sound is heard, have the vehicle serviced. See your dealer if the brake pedal . Fill the washer fluid tank only does not return to normal height, three-quarters full when it is or if there is a rapid increase in very cold. This allows for fluid pedal travel. This could be a sign expansion if freezing occurs, { Caution that brake service may be required. which could damage the tank if it is completely full. Continuing to drive with worn-out brake pads could result in costly brake repair. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (26,1) 7707475) - 2015 - CRC - 10/9/14
10-26 Vehicle Care
Replacing Brake System Parts There are only two reasons why the brake fluid level in the reservoir { Warning Always replace brake system parts might go down: with new, approved replacement If too much brake fluid is added, it parts. If this is not done, the brakes . The brake fluid level goes down can spill on the engine and burn, may not work properly. The braking because of normal brake lining if the engine is hot enough. You performance expected can change wear. When new linings are or others could be burned, and in many other ways if the wrong installed, the fluid level goes the vehicle could be damaged. replacement brake parts are back up. Add brake fluid only when work is installed or parts are improperly . A fluid leak in the brake done on the brake hydraulic installed. hydraulic system can also cause system. a low fluid level. Have the brake Brake Fluid hydraulic system fixed, since a leak means that sooner or later When the brake fluid falls to a low the brakes will not work well. level, the brake warning light comes on. See Brake System Warning Do not top off the brake fluid. Light on page 5-19. Adding fluid does not correct a leak. If fluid is added when the linings are What to Add worn, there will be too much fluid Use only new DOT 3 brake fluid when new brake linings are from a sealed container. See The brake master cylinder reservoir installed. Add or remove brake fluid, Recommended Fluids and is filled with DOT 3 brake fluid as as necessary, only when work is Lubricants on page 11-12. indicated on the reservoir cap. See done on the brake hydraulic system. Engine Compartment Overview on Always clean the brake fluid page 10-6 for the location of the reservoir cap and the area around reservoir. the cap before removing it. This helps keep dirt from entering the reservoir. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (27,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-27
dealer has information on how to { Warning Caution (Continued) recycle the high voltage battery. There is also information available . With the wrong kind of fluid in the If brake fluid is spilled on the at http://www.recyclemybattery.com. brake hydraulic system, the vehicle's painted surfaces, brakes might not work well. This the paint finish can be could cause a crash. Always use damaged. Be careful not to the proper brake fluid. spill brake fluid on the vehicle. If you do, wash it off immediately.
{ Caution Battery . Using the wrong fluid can The original equipment battery is badly damage brake maintenance free. Do not remove hydraulic system parts. For the cap and do not add fluid. example, just a few drops of mineral-based oil, such as This vehicle has a standard 12-volt engine oil, in the brake battery. Refer to the replacement The eAssist system high voltage hydraulic system can damage number on the original battery label battery is cooled with air drawn from brake hydraulic system parts when a new standard 12-volt battery the vehicle interior. The cold air so badly that they will have to is needed. intake for the battery is behind the be replaced. Do not let eAssist vehicles also have a high rear seat, on the filler panel. Do not someone put in the wrong voltage battery. Only a trained cover the intake. kind of fluid. service technician with the proper (Continued) knowledge and tools should inspect, test, or replace the high voltage battery. See your dealer if the high voltage battery needs service. The Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (28,1) 7707475) - 2015 - CRC - 10/9/14
10-28 Vehicle Care
Infrequent Usage: Remove the Starter Switch Check { Warning 12-volt battery black, negative (−) cable from the battery to keep the Battery posts, terminals, and battery from running down. { Warning related accessories contain lead and lead compounds, chemicals Extended Storage: Remove the When you are doing this known to the State of California to 12-volt battery black, negative (−) inspection, the vehicle could cause cancer and reproductive cable from the battery or use a move suddenly. If the vehicle harm. Wash hands after handling. battery trickle charger. moves, you or others could be Remember to reconnect the battery injured. when ready to drive the vehicle. Vehicle Storage 1. Before starting this check, be All-Wheel Drive sure there is enough room { Warning around the vehicle. Transfer Case Batteries have acid that can burn 2. Apply both the parking brake you and gas that can explode. Under normal driving conditions, and the regular brake. transfer case fluid does not require You can be badly hurt if you are changing or checking unless there Do not use the accelerator not careful. See Jump Starting is a fluid leak or unusual noise. pedal, and be ready to turn off (On-board with eAssist Only) on If required, have the transfer case the engine immediately if it page 10-78 or Jump Starting (with serviced by your dealer. starts. or without eAssist) on page 10-79 3. Try to start the engine in each for tips on working around a gear. The vehicle should start battery without getting hurt. only in P (Park) or N (Neutral). If the vehicle starts in any other position, contact your dealer for service. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (29,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-29
Automatic Transmission 3. With the engine off, turn the Park Brake and P (Park) ignition on, but do not start the Shift Lock Control engine. Without applying the Mechanism Check Function Check regular brake, try to move the shift lever out of P (Park) with { Warning { Warning normal effort. If the shift lever moves out of P (Park), contact When you are doing this check, When you are doing this your dealer for service. the vehicle could begin to move. inspection, the vehicle could You or others could be injured move suddenly. If the vehicle Ignition Transmission and property could be damaged. moves, you or others could be Lock Check Make sure there is room in front injured. of the vehicle in case it begins to If equipped with a key type ignition, roll. Be ready to apply the regular while parked and with the parking brake at once should the vehicle 1. Before starting this check, be brake set, try to turn the ignition to begin to move. sure there is enough room LOCK/OFF in each shift lever around the vehicle. It should be position. parked on a level surface. Park on a fairly steep hill, with the . The ignition should turn to vehicle facing downhill. Keeping 2. Apply the parking brake. Be LOCK/OFF only when the shift your foot on the regular brake, set ready to apply the regular brake lever is in P (Park). the parking brake. immediately if the vehicle begins to move. . The ignition key should come . To check the parking brake's out only in LOCK/OFF. holding ability: With the engine Contact your dealer if service is running and the transmission in required. N (Neutral), slowly remove foot pressure from the regular brake pedal. Do this until the vehicle is held by the parking brake only. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (30,1) 7707475) - 2015 - CRC - 10/9/14
10-30 Vehicle Care
. To check the P (Park) To replace the windshield wiper 4. Remove the wiper blade. mechanism's holding ability: blade: With the engine running, shift to Allowing the wiper blade arm to P (Park). Then release the 1. Pull the windshield wiper touch the windshield when no parking brake followed by the assembly away from the wiper blade is installed could regular brake. windshield. damage the windshield. Any damage that occurs would not Contact your dealer if service is be covered by the vehicle required. warranty. Do not allow the wiper blade to touch the windshield. Wiper Blade Replacement 5. Reverse Steps 1–3 for wiper Windshield wiper blades should be blade replacement. inspected for wear and cracking. See Maintenance Schedule on Windshield Replacement page 11-2 for more information. The windshield is part of the HUD Replacement blades come in system. If the vehicle has to have different types and are removed in the windshield replaced, get one different ways. For proper type and that is designed for HUD or the length, see Maintenance HUD image may look out of focus. Replacement Parts on page 11-13. 2. Lift up on the latch in the middle of the wiper blade where the wiper arm attaches. 3. With the latch open, pull the wiper blade down toward the windshield far enough to release it from the J-hooked end of the wiper arm. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (31,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-31
Headlamp Aiming Bulb Replacement High Intensity Discharge Headlamp aim has been preset and For the proper type of replacement (HID) Lighting should need no further adjustment. bulbs, see Replacement Bulbs on If the vehicle is damaged in a crash, page 10-34. { Warning the headlamp aim may be affected. For any bulb changing procedure The high intensity discharge If adjustment to the headlamps is not listed in this section, contact lighting system operates at a very necessary, see your dealer. your dealer. high voltage. If you try to service any of the system components, Halogen Bulbs you could be seriously injured. Have your dealer or a qualified { Warning technician service them. Halogen bulbs have pressurized gas inside and can burst if you After an HID headlamp bulb has drop or scratch the bulb. You or been replaced, the beam might be a others could be injured. Be sure slightly different shade than it was to read and follow the instructions originally. This is normal. on the bulb package. LED Lighting This vehicle has several LED lamps. For replacement of any LED lighting assembly, contact your dealer. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (32,1) 7707475) - 2015 - CRC - 10/9/14
10-32 Vehicle Care
Headlamps, Front Turn To replace one of these bulbs: Uplevel Headlamp Assembly Signal and Parking 1. Open the hood. See Hood on The uplevel model vehicle has a Lamps page 10-5. high intensity discharge (HID) high/ 2. If replacing a headlamp bulb, low beam, DRL/parking lamp, and a Base Headlamp Assembly remove the dust cover from the turn signal lamp on the headlamp assembly. See High Intensity The base model vehicle has a back of the headlamp housing Discharge (HID) Lighting on halogen high/low-beam headlamp, by turning counterclockwise page 10-31. parking lamp, and a turn signal lamp one-quarter turn. on the headlamp assembly. 3. If replacing a turn signal lamp For replacement of the turn signal bulb on a non-eAssist vehicle, lamp bulb on an eAssist vehicle, remove the close out panel push contact your dealer. pins and close out panel covering the bulb socket. 4. Remove the bulb socket from the headlamp by turning counterclockwise one-quarter turn. 5. Remove the bulb from the socket. If replacing the high/ low-beam bulb, pry the two clips on either end of the bulb and pull To replace one of these bulbs: straight out. 1. Open the hood. See Hood on 6. Reverse Steps 1–5 to install. page 10-5. 2. Turn the bulb socket 1. Headlamp counterclockwise to remove it 2. Turn Signal Lamp from the headlamp assembly. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (33,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-33
3. Pull the bulb straight out from To replace one of these lamps: License Plate Lamp the socket. 1. Open the trunk. See Trunk on The license plate lamps for this 4. Reverse Steps 1–3 to install. page 2-13. vehicle are on the trunk lid. 2. Remove the fasteners and pull To replace one of these bulbs: Taillamps, Turn Signal, back the trunk trim. Stoplamps, and Back-Up 1. Open the trunk. See Trunk on 3. Remove the four plastic wing page 2-13. Lamps nuts holding the taillamp assembly in place. 4. Pull out the taillamp assembly and disconnect the wiring harness. 5. Turn the bulb socket counterclockwise to remove it. 6. Pull the old bulb straight out of the bulb socket. 7. Reverse Steps 1–6 to install.
2. Push the end on either of the 1. Back-Up Lamp lamp assemblies (passenger 2. Turn Signal Lamp side shown) and then move the lamp assembly down to remove it from the trunk lid. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (34,1) 7707475) - 2015 - CRC - 10/9/14
10-34 Vehicle Care
Replacement Bulbs Electrical System Bulb Exterior Lamp Number High Voltage Devices and Back-Up Lamp 921LL Wiring (W16W) Front Turn 7444NA { Warning Signal Lamp Exposure to high voltage can Headlamp High HIR2 cause shock, burns, and even Beam (Base) death. The high voltage Headlamp Low HIR2 components in the vehicle can 3. Turn the bulb socket (1) Beam (Base) only be serviced by technicians counterclockwise to remove it with special training. from the lamp assembly (3). License Plate Lamp W5WLL High voltage components are 4. Pull the bulb (2) straight out of Rear Turn Signal 7443NA identified by labels. Do not the bulb socket. (WY21W) remove, open, take apart, or modify these components. 5. Push the replacement bulb For replacement bulbs not listed High voltage cable or wiring has straight into the bulb socket and here, contact your dealer. turn the bulb socket clockwise to orange covering. Do not probe, install it into the lamp assembly. tamper with, cut, or modify high 6. Move the lamp assembly into voltage cable or wiring. the trunk lid, engaging the clip side first. 7. Push on the lamp side opposite the clip until the lamp assembly snaps into place. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (35,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-35
Electrical System Headlamp Wiring Fuses and Circuit Overload An electrical overload may cause Breakers the lamps to go on and off, or in The vehicle has fuses and circuit The wiring circuits in the vehicle are some cases to remain off. Have the breakers to protect against an protected from short circuits by a headlamp wiring checked right away electrical system overload. combination of fuses and circuit if the lamps go on and off or breakers. This greatly reduces the When the current electrical load is remain off. too heavy, the circuit breaker opens chance of damage caused by and closes, protecting the circuit Windshield Wipers electrical problems. until the current load returns to If the wiper motor overheats due to To check a fuse, look at the normal or the problem is fixed. This heavy snow or ice, the windshield silver-colored band inside the fuse. greatly reduces the chance of circuit wipers will stop until the motor cools If the band is broken or melted, overload and fire caused by and will then restart. replace the fuse. Be sure to replace electrical problems. a bad fuse with a new one of the Although the circuit is protected identical size and rating. Fuses and circuit breakers protect from electrical overload, overload power devices in the vehicle. due to heavy snow or ice may Fuses of the same amperage can Replace a bad fuse with a new one cause wiper linkage damage. be temporarily borrowed from of the identical size and rating. Always clear ice and heavy snow another fuse location, if a fuse goes from the windshield before using the out. Replace the fuse as soon as If there is a problem on the road and windshield wipers. possible. a fuse needs to be replaced, the same amperage fuse can be If the overload is caused by an To identify and check fuses, circuit borrowed. Choose some feature of electrical problem and not snow or breakers, and relays, see Engine the vehicle that is not needed to use ice, be sure to get it fixed. Compartment Fuse Block on and replace it as soon as possible. page 10-36 and Instrument Panel Fuse Block on page 10-40. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (36,1) 7707475) - 2015 - CRC - 10/9/14
10-36 Vehicle Care
Engine Compartment Fuse Block
To remove the fuse block cover, squeeze the three retaining clips on the cover and lift it straight up. The vehicle may not be equipped J-Case Usage with all of the fuses, relays, and Fuses { Caution features shown. 21 Rear Power J-Case Usage Spilling liquid on any electrical Windows Fuses component on the vehicle may 22 Sunroof damage it. Always keep the 6 Wiper 24 Front Power covers on any electrical 12 Starter component. Windows Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (37,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-37
J-Case Usage Mini Fuses Usage Mini Fuses Usage Fuses 1 Transmission 10 Engine Control 25 Rear Heated Seats Control Module — Module – Switched Battery Battery (from Engine 26 Antilock Brake Control Module System Pump 2 Engine Control Relay) Module Battery 27 Electric Parking 11 Six Cylinder Engine: Brake 3 Air Conditioning Post Catalytic Compressor Clutch 28 Rear Window Converter Oxygen Defogger 5 Engine Control Sensor Heater, Module Run/Crank Mass Air Flow 41 Brake Sensor, FlexFuel Vacuum Pump 7 Long Range Radar/ Sensor, Secondary Front Camera 42 Cooling Fan K2 Air Induction 8 Ignition Coils Even 43 Not Used – Solenoid (Six Cylinder 13 Crank for 44 Transmission Engine), Ignition Transmission Auxiliary Oil Pump Coils All (Four – Control Module/Fuel (eAssist) Cylinder Engine) Pump Power/ 45 Cooling Fan K1 9 Ignition Coils – Odd Chassis Control (Six Cylinder 59 AIR Pump Module (eAssist) Engine) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (38,1) 7707475) - 2015 - CRC - 10/9/14
10-38 Vehicle Care
Mini Fuses Usage Mini Fuses Usage Mini Fuses Usage 14 Cabin Heater 23 Variable Effort 37 Right High Beam Coolant Pump Steering (if 38 Left High Beam (eAssist)/Secondary equipped) or eAssist Air Injector/ Power Inverter 46 Cooling Fan Relay Secondary Air Module 47 Six Cylinder Engine: Injector with 29 Heated Seat, Left/ Pre Catalytic Pressure Sensor Power Lumbar Converter Oxygen 15 Motor Generator Sensor Heater, 30 Heated Seat, Right/ Unit Coolant Pump Canister Purge Power Pack Cooling (eAssist) Solenoid. Four Fan (eAssist) Cylinder Engine: Pre 16 Run/Crank for 31 All-Wheel Drive, and Post Catalytic eAssist Power Electronic Converter Oxygen Inverter Module Suspension Control Sensor Heaters, 17 Not Used Canister Purge 32 Body Control Solenoid 18 Sunshade Module, Module 6 Vehicle Air 48 Fog Lamps 33 Memory Seat Purification System, – Front 49 Right High Intensity Ventilated Seats Discharge 34 Antilock Brake 20 Heated Steering Headlamp System Valves Wheel (non eAssist) 50 Left High Intensity 35 Amplifier Discharge 36 Adaptive Forward Headlamp Lighting (AFL) 51 Horn Motors – Battery Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (39,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-39
Mini Fuses Usage Mini Fuses Usage Micro Usage Relays 52 Cluster Run/Crank 66 AIR Solenoid (eAssist) 1 Air Conditioning 53 Run/Crank for Inside Compressor Clutch Rearview Mirror, 67 Fuel Pump Power Rear Vision Camera, Module/Chassis 2 Starter Air Quality Sensor, Control Module 4 Wiper Speed Aero Shutter Motor 69 Regulated Voltage 5 Wiper Control 54 Run/Crank for: Control Sensor Heating, Ventilation 6 Cabin Heater 70 Parking Assist/Side and Air Coolant Pump Blind Zone Conditioning, (eAssist)/Secondary Headlamp Switch 71 Passive Entry/ Air Injector/ Passive Start Secondary Air 55 Outside Rearview Injector with Mirror, Universal Pressure Sensor Remote System, Mini Relays Usage Front Window 7 Engine Control 10 Cooling Fan Switches Module 14 Headlamp 56 Windshield Washer 9 Cooling Fan Low Beam 60 Heated Mirror 13 Cooling Fan Ultra Micro Usage 62 Canister Vent 15 Run/Crank Relays 64 Adaptive Forward 16 AIR Pump 11 Transmission Lighting (AFL) Auxiliary Oil Pump 17 Rear Window Module – Battery (eAssist) Defogger 65 Not Used Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (40,1) 7707475) - 2015 - CRC - 10/9/14
10-40 Vehicle Care
Instrument Panel Fuse The vehicle may not be equipped with all of the fuses, relays, and Block features shown. Fuses Usage 1 APO 3 2 Body Control Module 7 3 Steering Wheel Controls Backlight 4 Radio/Human Pull the door toward you to release Machine Interface/ it from the hinge. Rear Auxiliary Audio Jack/Front Auxiliary Audio Video Jack/ The instrument panel fuse block is Touchpad/Remote located in the instrument panel, on Media Player/ the driver side of the vehicle. To Blu–ray Remote access the fuses, open the fuse Media Player panel door by pulling down at 5 OnStar/Universal the top. Hands–Free Phone Press in on the sides of the door to release it from the instrument panel. 6 Power Outlet 1 7 Power Outlet 2 8 Body Control Module 1 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (41,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-41
Fuses Usage Fuses Usage Fuses Usage 9 Body Control 18 Pre-Fuse for Fuses 25 Rear Heater Module 4 4 and 5 Ventilation Air Conditioning/Blower 10 Body Control 19 Center Stack Module 8 Displays, Head-Up 26 AC/DC Inverter (J-Case Fuse) Display, Right Steering Wheel 11 Front Heater Relays Usage Control Switch, Rear Ventilation Air Seat Infotainment R1 Trunk Relay Conditioning/Blower Display (eAssist), (J-Case Fuse) R2 Not Used HVAC Center Stack 12 Passenger Seat Displays R3 Power Outlet Relay (Circuit Breaker) 20 Rear Seat 13 Driver Seat (Circuit Entertainment Breaker) Display/Rear Seat Audio 14 Diagnostic Link Connector 21 Instrument Cluster 15 Airbag/Automatic 22 Discrete Logic Occupant Sensing Ignition Switch 16 Trunk 23 Body Control Module 3 17 Heater Ventilation Air Conditioning 24 Body Control Controller Module 2 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (42,1) 7707475) - 2015 - CRC - 10/9/14
10-42 Vehicle Care
Wheels and Tires Warning (Continued) Warning (Continued)
Tires and a serious crash. See . Worn or old tires can Every new GM vehicle has Vehicle Load Limits on cause a crash. If the tread high-quality tires made by a page 9-10. is badly worn, replace them. leading tire manufacturer. See . Underinflated tires pose the warranty manual for the same danger as . Replace any tires that information regarding the tire overloaded tires. The have been damaged by warranty and where to get resulting crash could impacts with potholes, service. For additional cause serious injury. curbs, etc. Check all tires frequently information refer to the tire . Improperly repaired tires manufacturer. to maintain the can cause a crash. Only recommended pressure. the dealer or an { Warning Tire pressure should be authorized tire service checked when the tires center should repair, . Poorly maintained and are cold. improperly used tires are replace, dismount, and . dangerous. Overinflated tires are more mount the tires. likely to be cut, punctured, . Do not spin the tires in . Overloading the tires can or broken by a sudden cause overheating as a excess of 56 km/h impact — such as when (35 mph) on slippery result of too much flexing. hitting a pothole. Keep There could be a blowout surfaces such as snow, tires at the recommended mud, ice, etc. Excessive (Continued) pressure. spinning may cause the (Continued) tires to explode. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (43,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-43
See Tire Pressure for traction or performance as winter . Use only radial ply tires of the High-Speed Operation on tires on snow or ice-covered roads. same size, load range, and page 10-51 for inflation pressure See Winter Tires on page 10-43. speed rating as the original equipment tires. adjustment for high-speed driving. Winter Tires Winter tires with the same speed This vehicle was not originally rating as the original equipment tires may not be available for H, V, W, Y, All-Season Tires equipped with winter tires. Winter and ZR speed rated tires. If winter tires are designed for increased This vehicle may come with traction on snow and ice-covered tires with a lower speed rating are all-season tires. These tires are roads. Consider installing winter chosen, never exceed the tire's designed to provide good overall maximum speed capability. tires on the vehicle if frequent performance on most road surfaces driving on ice or snow covered and weather conditions. Original roads is expected. See your dealer Summer Tires equipment tires designed to GM's for details regarding winter tire specific tire performance criteria This vehicle may come with high availability and proper tire selection. have a TPC specification code performance summer tires. These Also, see Buying New Tires on molded onto the sidewall. Original tires have a special tread and page 10-58. equipment all-season tires can be compound that are optimized for identified by the last two characters With winter tires, there may be maximum dry and wet road of this TPC code, which will decreased dry road traction, performance. This special tread and be “MS.” increased road noise, and shorter compound will have decreased tread life. After changing to winter performance in cold climates, and Consider installing winter tires on tires, be alert for changes in vehicle on ice and snow. We recommend the vehicle if frequent driving on handling and braking. installing winter tires on the vehicle snow or ice-covered roads is if frequent driving at temperatures expected. All-season tires provide If using winter tires: below approximately 5°C (40°F) or adequate performance for most . Use tires of the same brand and on ice or snow covered roads is winter driving conditions, but they tread type on all four wheel expected. See Winter Tires on may not offer the same level of positions. page 10-43. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (44,1) 7707475) - 2015 - CRC - 10/9/14
10-44 Vehicle Care
Tire Sidewall Labeling and service description. See the DOT Tire Date of “Tire Size” illustration later in this Manufacture: The last four Useful information about a tire is section. digits of the TIN indicate the tire molded into its sidewall. The manufactured date. The first two examples show a typical (2) TPC Spec (Tire Performance Criteria digits represent the week (01– passenger vehicle tire and a 52) and the last two digits, the compact spare tire sidewall. Specification): Original equipment tires designed to year. For example, the third GM's specific tire performance week of the year 2010 would criteria have a TPC specification have a four-digit DOT date code molded onto the sidewall. of 0310. GM's TPC specifications meet or (4) Tire Identification Number exceed all federal safety (TIN): The letters and numbers guidelines. following the DOT (Department (3) DOT (Department of of Transportation) code are the Transportation): The Tire Identification Number (TIN). Department of Transportation The TIN shows the (DOT) code indicates that the manufacturer and plant code, tire size, and date the tire was Passenger (P-Metric) Tire Example tire is in compliance with the U.S. Department of manufactured. The TIN is (1) Tire Size: The tire size is a Transportation Motor Vehicle molded onto both sides of the combination of letters and Safety Standards. tire, although only one side may numbers used to define a have the date of manufacture. particular tire's width, height, aspect ratio, construction type, Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (45,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-45
(5) Tire Ply Material: The type (2) Temporary Use Only: The of cord and number of plies in compact spare tire or temporary the sidewall and under the tread. use tire should not be driven at (6) Uniform Tire Quality speeds over 80 km/h (50 mph). Grading (UTQG): Tire The compact spare tire is for manufacturers are required to emergency use when a regular grade tires based on three road tire has lost air and gone performance factors: treadwear, flat. If the vehicle has a compact traction, and temperature spare tire, see Compact Spare resistance. For more information Tire on page 10-77 and If a Tire see Uniform Tire Quality Goes Flat on page 10-63. Grading on page 10-60. Compact Spare Tire Example (3) Tire Identification Number (7) Maximum Cold Inflation (1) Tire Ply Material: The type (TIN): The letters and numbers Load Limit: Maximum load that of cord and number of plies in following the DOT (Department can be carried and the the sidewall and under the tread. of Transportation) code are the maximum pressure needed to Tire Identification Number (TIN). support that load. The TIN shows the manufacturer and plant code, tire size, and date the tire was manufactured. The TIN is molded onto both sides of the tire, although only one side may have the date of manufacture. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (46,1) 7707475) - 2015 - CRC - 10/9/14
10-46 Vehicle Care
(4) Maximum Cold Inflation criteria have a TPC specification vehicle tire engineered to Load Limit: Maximum load that code molded onto the sidewall. standards set by the U.S. Tire can be carried and the GM's TPC specifications meet or and Rim Association. maximum pressure needed to exceed all federal safety (2) Tire Width: The three-digit support that load. guidelines. number indicates the tire section (5) Tire Inflation: The width in millimeters from temporary use tire or compact Tire Designations sidewall to sidewall. spare tire should be inflated to Tire Size (3) Aspect Ratio: A two-digit 420 kPa (60 psi). For more The following is an example of a number that indicates the tire information on tire pressure and typical passenger vehicle height-to-width measurements. inflation see Tire Pressure on tire size. For example, if the tire size page 10-50. aspect ratio is 60, as shown in (6) Tire Size: A combination of item 3 of the illustration, it would letters and numbers define a mean that the tire's sidewall is tire's width, height, aspect ratio, 60 percent as high as it is wide. construction type, and service (4) Construction Code: A letter description. The letter T as the code is used to indicate the type first character in the tire size of ply construction in the tire. (1) Passenger (P-Metric) Tire: means the tire is for temporary The letter R means radial ply use only. The United States version of a metric tire sizing system. The construction; the letter D means (7) TPC Spec (Tire letter P as the first character in diagonal or bias ply Performance Criteria the tire size means a passenger construction; and the letter B Specification): Original means belted-bias ply equipment tires designed to construction. GM's specific tire performance Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (47,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-47
(5) Rim Diameter: Diameter of automatic transmission, power before a tire has built up heat the wheel in inches. windows, power seats, and air from driving. See Tire Pressure (6) Service Description: These conditioning. on page 10-50. characters represent the load Aspect Ratio: The relationship Curb Weight: The weight of a index and speed rating of the of a tire's height to its width. motor vehicle with standard and tire. The load index represents Belt: A rubber coated layer of optional equipment including the the load carrying capacity a tire cords between the plies and the maximum capacity of fuel, oil, is certified to carry. The speed tread. Cords may be made from and coolant, but without rating is the maximum speed a steel or other reinforcing passengers and cargo. tire is certified to carry a load. materials. DOT Markings: A code molded Bead: The tire bead contains into the sidewall of a tire Tire Terminology and signifying that the tire is in Definitions steel wires wrapped by steel cords that hold the tire onto compliance with the U.S. Air Pressure: The amount of the rim. Department of Transportation air inside the tire pressing (DOT) Motor Vehicle Safety outward on each square inch of Bias Ply Tire: A pneumatic tire Standards. The DOT code the tire. Air pressure is in which the plies are laid at includes the Tire Identification expressed in kPa (kilopascal) alternate angles less than Number (TIN), an alphanumeric or psi (pounds per square inch). 90 degrees to the centerline of designator which can also the tread. identify the tire manufacturer, Accessory Weight: The Cold Tire Pressure: The production plant, brand, and combined weight of optional date of production. accessories. Some examples of amount of air pressure in a tire, optional accessories are measured in kPa (kilopascal) GVWR: Gross Vehicle Weight or psi (pounds per square inch) Rating. See Vehicle Load Limits on page 9-10. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (48,1) 7707475) - 2015 - CRC - 10/9/14
10-48 Vehicle Care
GAWR FRT: Gross Axle Weight Maximum Inflation Pressure: outward when mounted on a Rating for the front axle. See The maximum air pressure to vehicle. The side of the tire that Vehicle Load Limits on which a cold tire can be inflated. contains a whitewall, bears page 9-10. The maximum air pressure is white lettering, or bears GAWR RR: Gross Axle Weight molded onto the sidewall. manufacturer, brand, and/or Rating for the rear axle. See Maximum Load Rating: The model name molding that is Vehicle Load Limits on load rating for a tire at the higher or deeper than the same page 9-10. maximum permissible inflation moldings on the other sidewall of the tire. Intended Outboard Sidewall: pressure for that tire. The side of an asymmetrical tire Maximum Loaded Vehicle Passenger (P-Metric) Tire: A that must always face outward Weight: The sum of curb tire used on passenger cars and when mounted on a vehicle. weight, accessory weight, some light duty trucks and multipurpose vehicles. Kilopascal (kPa): The metric vehicle capacity weight, and unit for air pressure. production options weight. Recommended Inflation Normal Occupant Weight: The Pressure: Vehicle Light Truck (LT-Metric) Tire: A manufacturer's recommended tire used on light duty trucks and number of occupants a vehicle is designed to seat multiplied by tire inflation pressure as shown some multipurpose passenger on the tire placard. See Tire vehicles. 68 kg (150 lb). See Vehicle Load Limits on page 9-10. Pressure on page 10-50 and Load Index: An assigned Vehicle Load Limits on number ranging from 1 to 279 Occupant Distribution: page 9-10. that corresponds to the load Designated seating positions. carrying capacity of a tire. Outward Facing Sidewall: The side of an asymmetrical tire that has a particular side that faces Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (49,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-49
Radial Ply Tire: A pneumatic Treadwear Indicators: Narrow Vehicle Capacity Weight: The tire in which the ply cords that bands, sometimes called wear number of designated seating extend to the beads are laid at bars, that show across the tread positions multiplied by 90 degrees to the centerline of of a tire when only 1.6 mm 68 kg (150 lb) plus the rated the tread. (1/16 in) of tread remains. See cargo load. See Vehicle Load Rim: A metal support for a tire When It Is Time for New Tires Limits on page 9-10. and upon which the tire beads on page 10-57. Vehicle Maximum Load on the are seated. UTQGS (Uniform Tire Quality Tire: Load on an individual tire Sidewall: The portion of a tire Grading Standards): A tire due to curb weight, accessory between the tread and the bead. information system that provides weight, occupant weight, and consumers with ratings for a cargo weight. Speed Rating: An tire's traction, temperature, and Vehicle Placard: A label alphanumeric code assigned to treadwear. Ratings are a tire indicating the maximum permanently attached to a determined by tire vehicle showing the vehicle speed at which a tire can manufacturers using operate. capacity weight and the original government testing procedures. equipment tire size and Traction: The friction between The ratings are molded into the recommended inflation pressure. sidewall of the tire. See Uniform the tire and the road surface. See “Tire and Loading Tire Quality Grading on The amount of grip provided. Information Label” under Vehicle page 10-60. Tread: The portion of a tire that Load Limits on page 9-10. comes into contact with the road. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (50,1) 7707475) - 2015 - CRC - 10/9/14
10-50 Vehicle Care
Tire Pressure How the vehicle is loaded Caution (Continued) affects vehicle handling and ride Tires need the correct amount of comfort. Never load the vehicle air pressure to operate Overinflated tires, or tires that with more weight than it was effectively. have too much air, can designed to carry. result in: { Caution When to Check . Unusual wear. Neither tire underinflation nor Check the tires once a month or . Poor handling. overinflation is good. more. Do not forget the compact Underinflated tires, or tires . Rough ride. spare, if the vehicle has one. The cold compact spare tire that do not have enough air, . Needless damage from can result in: pressure should be at 420 kPa road hazards. (60 psi). See Compact Spare . Tire overloading and Tire on page 10-77. overheating which could The Tire and Loading How to Check lead to a blowout. Information label on the vehicle . Premature or indicates the original equipment Use a good quality pocket-type irregular wear. tires and the correct cold tire gauge to check tire pressure. inflation pressures. The Proper tire inflation cannot be . Poor handling. recommended pressure is the determined by looking at the tire. . Reduced fuel economy. minimum air pressure needed to Check the tire inflation pressure (Continued) support the vehicle's maximum when the tires are cold, meaning load carrying capacity. See the vehicle has not been driven Vehicle Load Limits on for at least three hours or no page 9-10. more than 1.6 km (1 mi). Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (51,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-51
Remove the valve cap from the Tire Pressure for Vehicles with P245/45R19 size tires tire valve stem. Press the tire High-Speed Operation require inflation pressure adjustment gauge firmly onto the valve to when driving the vehicle at speeds get a pressure measurement. of 160 km/h (100 mph) or higher. { Warning If the cold tire inflation pressure Set the cold inflation pressure to 248 kPa (36 psi). matches the recommended Driving at high speeds, 160 km/h pressure on the Tire and (100 mph) or higher, puts an Vehicles with P245/40R20 size tires Loading Information label, no additional strain on tires. require inflation pressure adjustment when driving the vehicle at speeds further adjustment is necessary. Sustained high-speed driving of 160 km/h (100 mph) or higher. causes excessive heat buildup If the inflation pressure is low, Set the cold inflation pressure to and can cause sudden tire failure. add air until the recommended 270 kPa (39 psi). pressure is reached. If the You could have a crash and you inflation pressure is high, press or others could be killed. Some Return the tires to the on the metal stem in the center high-speed rated tires require recommended cold tire inflation pressure when high-speed driving of the tire valve to release air. inflation pressure adjustment for high-speed operation. When has ended. See Vehicle Load Limits Recheck the tire pressure with speed limits and road conditions on page 9-10 and Tire Pressure on page 10-50. the tire gauge. are such that a vehicle can be Return the valve caps on the driven at high speeds, make sure Tire Pressure Monitor valve stems to prevent leaks the tires are rated for high-speed and keep out dirt and moisture. operation, in excellent condition, System and set to the correct cold tire The Tire Pressure Monitor System inflation pressure for the (TPMS) uses radio and sensor vehicle load. technology to check tire pressure levels. The TPMS sensors monitor Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (52,1) 7707475) - 2015 - CRC - 10/9/14
10-52 Vehicle Care
the air pressure in your tires and significantly under-inflated tire When the malfunction indicator is transmit tire pressure readings to a causes the tire to overheat and can illuminated, the system may not be receiver located in the vehicle. lead to tire failure. Under-inflation able to detect or signal low tire Each tire, including the spare (if also reduces fuel efficiency and tire pressure as intended. TPMS provided), should be checked tread life, and may affect the malfunctions may occur for a variety monthly when cold and inflated to vehicle's handling and stopping of reasons, including the installation the inflation pressure recommended ability. of replacement or alternate tires or by the vehicle manufacturer on the Please note that the TPMS is not a wheels on the vehicle that prevent vehicle placard or tire inflation substitute for proper tire the TPMS from functioning properly. pressure label. (If your vehicle has maintenance, and it is the driver's Always check the TPMS malfunction tires of a different size than the size responsibility to maintain correct tire telltale after replacing one or more indicated on the vehicle placard or pressure, even if under-inflation has tires or wheels on your vehicle to tire inflation pressure label, you not reached the level to trigger ensure that the replacement or should determine the proper tire illumination of the TPMS low tire alternate tires and wheels allow the inflation pressure for those tires.) pressure telltale. TPMS to continue to function properly. As an added safety feature, your Your vehicle has also been vehicle has been equipped with a equipped with a TPMS malfunction See Tire Pressure Monitor tire pressure monitoring system indicator to indicate when the Operation on page 10-52. (TPMS) that illuminates a low tire system is not operating properly. See Radio Frequency Statement on pressure telltale when one or more The TPMS malfunction indicator is page 13-12. of your tires is significantly combined with the low tire pressure under-inflated. telltale. When the system detects a Tire Pressure Monitor Accordingly, when the low tire malfunction, the telltale will flash for Operation pressure telltale illuminates, you approximately one minute and then This vehicle may have a Tire should stop and check your tires as remain continuously illuminated. Pressure Monitor System (TPMS). soon as possible, and inflate them This sequence will continue upon The TPMS is designed to warn the to the proper pressure. Driving on a subsequent vehicle start-ups as long as the malfunction exists. driver when a low tire pressure Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (53,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-53
condition exists. TPMS sensors are tire pressure warning light and the The TPMS can warn about a low mounted onto each tire and wheel DIC warning message come on at tire pressure condition but it does assembly, excluding the spare tire each ignition cycle until the tires are not replace normal tire and wheel assembly. The TPMS inflated to the correct inflation maintenance. See Tire Inspection sensors monitor the air pressure in pressure. Using the DIC, tire on page 10-56, Tire Rotation on the tires and transmits the tire pressure levels can be viewed. For page 10-56 and Tires on pressure readings to a receiver additional information and details page 10-42. located in the vehicle. about the DIC operation and displays see Driver Information { Caution Center (DIC) on page 5-28. The low tire pressure warning light Tire sealant materials are not all may come on in cool weather when the same. A non-approved tire the vehicle is first started, and then sealant could damage the TPMS turn off as the vehicle is driven. This sensors. TPMS sensor damage could be an early indicator that the caused by using an incorrect tire When a low tire pressure condition air pressure is getting low and sealant is not covered by the is detected, the TPMS illuminates needs to be inflated to the proper vehicle warranty. Always use only the low tire pressure warning light pressure. the GM approved tire sealant located on the instrument cluster. A Tire and Loading Information available through your dealer or If the warning light comes on, stop label, attached to your vehicle, included in the vehicle. as soon as possible and inflate the shows the size of the original tires to the recommended pressure equipment tires and the correct shown on the Tire and Loading TPMS Malfunction Light and inflation pressure for the tires when Information label. See Vehicle Load Message they are cold. See Vehicle Load Limits on page 9-10. Limits on page 9-10, for an example The TPMS will not function properly A message to check the pressure in of the Tire and Loading Information if one or more of the TPMS sensors a specific tire displays in the Driver label and its location. Also see Tire are missing or inoperable. When the Information Center (DIC). The low Pressure on page 10-50. system detects a malfunction, the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (54,1) 7707475) - 2015 - CRC - 10/9/14
10-54 Vehicle Care
low tire warning light flashes for sensor matching process. See for service if the TPMS malfunction about one minute and then stays on "TPMS Sensor Matching light and DIC message comes on for the remainder of the ignition Process" later in this section. and stays on. cycle. A DIC warning message also . One or more TPMS sensors are displays. The malfunction light and TPMS Sensor Matching missing or damaged. The Process DIC warning message come on at malfunction light and the DIC each ignition cycle until the problem message should go off when the Each TPMS sensor has a unique is corrected. Some of the conditions TPMS sensors are installed and identification code. The identification that can cause these to come the sensor matching process is code needs to be matched to a new on are: performed successfully. See tire/wheel position after rotating the . One of the road tires has been your dealer for service. vehicle’s tires or replacing one or replaced with the spare tire. The more of the TPMS sensors. The . Replacement tires or wheels do spare tire does not have a TPMS sensor matching process not match the original equipment should also be performed after TPMS sensor. The malfunction tires or wheels. Tires and wheels light and DIC message should replacing a spare tire with a road other than those recommended tire containing the TPMS sensor. go off after the road tire is could prevent the TPMS from replaced and the sensor The malfunction light and the DIC functioning properly. See Buying message should go off at the next matching process is performed New Tires on page 10-58. successfully. See “TPMS Sensor ignition cycle. The sensors are Matching Process” later in this . Operating electronic devices or matched to the tire/wheel positions, section. being near facilities using radio using a TPMS relearn tool, in the wave frequencies similar to the following order: driver side front tire, . The TPMS sensor matching TPMS could cause the TPMS passenger side front tire, passenger process was not done or not sensors to malfunction. side rear tire, and driver side rear. completed successfully after See your dealer for service or to If the TPMS is not functioning rotating the tires. The purchase a relearn tool. A TPMS properly it cannot detect or signal a malfunction light and the DIC relearn tool can also be purchased. low tire condition. See your dealer message should go off after See Tire Pressure Monitor Sensor successfully completing the Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (55,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-55
Activation Tool at Settings menu. See Driver 8. Proceed to the passenger side www.gmtoolsandequipment.com or Information Center (DIC) on front tire, and repeat the call 1-800-GM TOOLS page 5-28. procedure in Step 7. (1-800-468-6657). 4. Use the DIC controls on the right 9. Proceed to the passenger side There are two minutes to match the side of the steering wheel to rear tire, and repeat the first tire/wheel position, and scroll to the Tire Pressure procedure in Step 7. five minutes overall to match all four screen under the DIC info page. 10. Proceed to the driver side rear tire/wheel positions. If it takes 5. Press and hold the V (Set/ tire, and repeat the procedure longer, the matching process stops in Step 7. The horn sounds two and must be restarted. Reset) button located in the center of the DIC controls. times to indicate the sensor The TPMS sensor matching identification code has been process is: The horn sounds twice to signal matched to the driver side rear the receiver is in relearn mode 1. Set the parking brake. tire, and the TPMS sensor and the TIRE LEARNING matching process is no longer 2. Turn the ignition to ON/RUN with ACTIVE message displays on active. The TIRE LEARNING the engine off or place the the DIC screen. ACTIVE message on the DIC vehicle power mode in ON/RUN/ 6. Start with the driver side display screen goes off. START. See Ignition Positions front tire. (Key Access) on page 9-15 or 11. Turn the ignition to LOCK/OFF Ignition Positions (Keyless 7. Place the relearn tool against or press STOP to turn the Access) on page 9-16. the tire sidewall, near the valve ignition off. stem. Then press the button to 3. Make sure the Tire Pressure info 12. Set all four tires to the activate the TPMS sensor. recommended air pressure page option is turned on. The A horn chirp confirms that the info pages on the DIC can be level as indicated on the Tire sensor identification code has and Loading Information label. turned on and off through the been matched to this tire and wheel position. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (56,1) 7707475) - 2015 - CRC - 10/9/14
10-56 Vehicle Care
Tire Inspection . The tire has a puncture, cut, Anytime unusual wear is or other damage that cannot noticed, rotate the tires as soon We recommend that the tires, be repaired well because of as possible, check for proper tire including the spare tire, if the the size or location of the inflation pressure, and check for vehicle has one, be inspected damage. damaged tires or wheels. If the for signs of wear or damage at unusual wear continues after the least once a month. Tire Rotation rotation, check the wheel Replace the tire if: Tires should be rotated every alignment. See When It Is Time . The indicators at three or 12 000 km (7,500 mi). See for New Tires on page 10-57 more places around the tire Maintenance Schedule on and Wheel Replacement on can be seen. page 11-2. page 10-62. . There is cord or fabric Tires are rotated to achieve a showing through the tire's uniform wear for all tires. The rubber. first rotation is the most important. . The tread or sidewall is cracked, cut, or snagged deep enough to show cord or fabric. . The tire has a bump, bulge, or split.
Use this rotation pattern when rotating the tires. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (57,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-57
Do not include the compact When It Is Time for New { Warning spare tire in the tire rotation. Tires Adjust the front and rear tires to Rust or dirt on a wheel, or on the Factors such as maintenance, the recommended inflation parts to which it is fastened, can temperatures, driving speeds, pressure on the Tire and make wheel nuts become loose vehicle loading, and road conditions Loading Information label after after time. The wheel could come affect the wear rate of the tires. the tires have been rotated. See off and cause an accident. When Tire Pressure on page 10-50 changing a wheel, remove any and Vehicle Load Limits on rust or dirt from places where the page 9-10. wheel attaches to the vehicle. In an emergency, a cloth or a paper Reset the Tire Pressure Monitor towel can be used; however, use System. See Tire Pressure a scraper or wire brush later to Monitor Operation on remove all rust or dirt. page 10-52. Check that all wheel nuts are Lightly coat the center of the properly tightened. See “Wheel wheel hub with wheel bearing Nut Torque” under Capacities grease after a wheel change or and Specifications on tire rotation to prevent corrosion page 12-2. or rust build-up. Do not get Treadwear indicators are one way to tell when it is time for new tires. grease on the flat wheel Treadwear indicators appear when mounting surface or on the the tires have only 1.6 mm (1/16 in) wheel nuts or bolts. or less of tread remaining. See Tire Inspection on page 10-56 and Tire Rotation on page 10-56. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (58,1) 7707475) - 2015 - CRC - 10/9/14
10-58 Vehicle Care
The rubber in tires ages over time. slow aging. This area should be free GM's exclusive TPC Spec This also applies to the spare tire, of grease, gasoline, or other system considers over a dozen if the vehicle has one, even if it is substances that can deteriorate critical specifications that impact never used. Multiple factors rubber. the overall performance of the including temperatures, loading Parking for an extended period can vehicle, including brake system conditions, and inflation pressure cause flat spots on the tires that maintenance affect how fast aging performance, ride and handling, may result in vibrations while traction control, and tire takes place. GM recommends that driving. When storing a vehicle for tires, including the spare if pressure monitoring at least a month, remove the tires or performance. GM's TPC Spec equipped, be replaced after six raise the vehicle to reduce the years, regardless of tread wear. The weight from the tires. number is molded onto the tire's tire manufacture date is the last four sidewall near the tire size. If the digits of the DOT Tire Identification Buying New Tires tires have an all-season tread Number (TIN) which is molded into design, the TPC Spec number one side of the tire sidewall. The GM has developed and matched will be followed by MS for mud first two digits represent the week specific tires for the vehicle. The and snow. See Tire Sidewall (01 52) and the last two digits, the – original equipment tires installed Labeling on page 10-44. year. For example, the third week of were designed to meet General the year 2010 would have a GM recommends replacing worn four-digit DOT date of 0310. Motors Tire Performance Criteria Specification (TPC Spec) tires in complete sets of four. Vehicle Storage system rating. When Uniform tread depth on all tires will help to maintain the Tires age when stored normally replacement tires are needed, GM strongly recommends performance of the vehicle. mounted on a parked vehicle. Park Braking and handling a vehicle that will be stored for at buying tires with the same TPC least a month in a cool, dry, clean Spec rating. performance may be adversely area away from direct sunlight to affected if all the tires are not replaced at the same time. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (59,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-59
If proper rotation and maintenance have been done, Warning (Continued) Warning (Continued) all four tires should wear out at Only your dealer or authorized A tire and/or wheel could fail about the same time. See Tire tire service center should suddenly and cause a crash. Rotation on page 10-56. mount or dismount the tires. Use only radial-ply tires with However, if it is necessary to the wheels on the vehicle. replace only one axle set of worn tires, place the new tires on the rear axle. { Warning If the vehicle tires must be replaced with a tire that does not Winter tires with the same speed Mixing tires of different sizes, have a TPC Spec number, make rating as the original equipment brands, or types may cause sure they are the same size, tires may not be available for H, loss of control of the vehicle, load range, speed rating, and V, W, Y and ZR speed rated resulting in a crash or other construction (radial) as the tires. Never exceed the winter vehicle damage. Use the original tires. tires’ maximum speed capability correct size, brand, and type when using winter tires with a of tires on all wheels. Vehicles that have a tire lower speed rating. pressure monitoring system could give an inaccurate { Warning low-pressure warning if non-TPC { Warning Spec rated tires are installed. See Tire Pressure Monitor Tires could explode during Using bias-ply tires on the System on page 10-51. improper service. Attempting vehicle may cause the wheel to mount or dismount a tire rim flanges to develop cracks could cause injury or death. after many miles of driving. (Continued) (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (60,1) 7707475) - 2015 - CRC - 10/9/14
10-60 Vehicle Care
The Tire and Loading treadwear, traction, and Information label indicates the { Warning temperature performance. This original equipment tires on the If different sized wheels are used, applies only to vehicles sold in vehicle. See Vehicle Load Limits there may not be an acceptable the United States. The grades on page 9-10. level of performance and safety if are molded on the sidewalls of tires not recommended for those most passenger car tires. The Different Size Tires and wheels are selected. This Uniform Tire Quality Grading Wheels increases the chance of a crash (UTQG) system does not apply and serious injury. Only use GM to deep tread, winter tires, If wheels or tires are installed that specific wheel and tire systems compact spare tires, tires with are a different size than the original developed for the vehicle, and equipment wheels and tires, vehicle nominal rim diameters of performance, including its braking, have them properly installed by a 10 to 12 inches (25 to 30 cm), ride and handling characteristics, GM certified technician. or to some limited-production stability, and resistance to rollover tires. may be affected. If the vehicle has See Buying New Tires on While the tires available on electronic systems such as antilock page 10-58 and Accessories and General Motors passenger cars brakes, rollover airbags, traction Modifications on page 10-3. control, electronic stability control, and light trucks may vary with or All-Wheel Drive, the performance Uniform Tire Quality respect to these grades, they of these systems can also be must also conform to federal affected. Grading safety requirements and The following information relates additional General Motors Tire to the system developed by the Performance Criteria (TPC) United States National Highway standards. Traffic Safety Administration (NHTSA), which grades tires by Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (61,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-61
Quality grades can be found their use, however, and may Temperature where applicable on the tire depart significantly from the The temperature grades are A sidewall between tread shoulder norm due to variations in driving (the highest), B, and C, and maximum section width. For habits, service practices and representing the tire's resistance example: differences in road to the generation of heat and its characteristics and climate. Treadwear 200 Traction AA ability to dissipate heat when Temperature A Traction tested under controlled conditions on a specified indoor All Passenger Car Tires Must The traction grades, from laboratory test wheel. Sustained Conform to Federal Safety highest to lowest, are AA, A, B, high temperature can cause the Requirements In Addition To and C. Those grades represent material of the tire to degenerate These Grades. the tire's ability to stop on wet and reduce tire life, and pavement as measured under Treadwear excessive temperature can lead controlled conditions on to sudden tire failure. The grade The treadwear grade is a specified government test C corresponds to a level of comparative rating based on the surfaces of asphalt and performance which all wear rate of the tire when tested concrete. A tire marked C may passenger car tires must meet under controlled conditions on a have poor traction performance. under the Federal Motor Safety specified government test Warning: The traction grade Standard No. 109. Grades B and course. For example, a tire assigned to this tire is based on A represent higher levels of graded 150 would wear one and straight-ahead braking traction performance on the laboratory one-half (1½) times as well on tests, and does not include test wheel than the minimum the government course as a tire acceleration, cornering, required by law. Warning: The graded 100. The relative hydroplaning, or peak traction temperature grade for this tire is performance of tires depends characteristics. upon the actual conditions of established for a tire that is properly inflated and not Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (62,1) 7707475) - 2015 - CRC - 10/9/14
10-62 Vehicle Care
overloaded. Excessive speed, Wheel Replacement underinflation, or excessive { Warning Replace any wheel that is bent, loading, either separately or in cracked, or badly rusted or Using the wrong replacement combination, can cause heat corroded. If wheel nuts keep coming wheels, wheel bolts, or wheel buildup and possible tire failure. loose, the wheel, wheel bolts, and nuts can be dangerous. It could wheel nuts should be replaced. affect the braking and handling of Wheel Alignment and Tire If the wheel leaks air, replace it. the vehicle. Tires can lose air, Balance Some aluminum wheels can be and cause loss of control, causing repaired. See your dealer if any of a crash. Always use the correct The tires and wheels were aligned these conditions exist. wheel, wheel bolts, and wheel and balanced at the factory to nuts for replacement. provide the longest tire life and best Your dealer will know the kind of overall performance. Adjustments to wheel that is needed. wheel alignment and tire balancing Each new wheel should have the are not necessary on a regular same load-carrying capacity, { Caution basis. Consider an alignment check diameter, width, offset, and be if there is unusual tire wear or the mounted the same way as the one it The wrong wheel can also cause vehicle is significantly pulling to one replaces. problems with bearing life, brake side or the other. Some slight pull to cooling, speedometer or the left or right, depending on the Replace wheels, wheel bolts, wheel nuts, or Tire Pressure Monitor odometer calibration, headlamp crown of the road and/or other road aim, bumper height, vehicle surface variations such as troughs System (TPMS) sensors with new GM original equipment parts. ground clearance, and tire or tire or ruts, is normal. If the vehicle is chain clearance to the body and vibrating when driving on a smooth chassis. road, the tires and wheels may need to be rebalanced. See your dealer for proper diagnosis. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (63,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-63
Used Replacement Wheels If a Tire Goes Flat Warning (Continued) It is unusual for a tire to blow out { Warning parts. The area damaged by the while driving, especially if the tires tire chains could cause loss of are maintained properly. See Tires Replacing a wheel with a used control and a crash. on page 10-42. If air goes out of a one is dangerous. How it has Use another type of traction tire, it is much more likely to leak been used or how far it has been out slowly. But if there is ever a device only if its manufacturer driven may be unknown. It could blowout, here are a few tips about fail suddenly and cause a crash. recommends it for the vehicle's what to expect and what to do: When replacing wheels, use a tire size combination and road new GM original equipment conditions. Follow that If a front tire fails, the flat tire wheel. manufacturer's instructions. To creates a drag that pulls the vehicle avoid vehicle damage, drive slow toward that side. Take your foot off and readjust or remove the the accelerator pedal and grip the Tire Chains traction device if it contacts the steering wheel firmly. Steer to maintain lane position, and then vehicle. Do not spin the wheels. gently brake to a stop, well off the { Warning If traction devices are used, install road, if possible. them on the front tires. Do not use tire chains. There is A rear blowout, particularly on a not enough clearance. Tire chains curve, acts much like a skid and used on a vehicle without the may require the same correction as proper amount of clearance can used in a skid. Stop pressing the cause damage to the brakes, accelerator pedal and steer to suspension, or other vehicle straighten the vehicle. It may be (Continued) very bumpy and noisy. Gently brake to a stop, well off the road, if possible. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (64,1) 7707475) - 2015 - CRC - 10/9/14
10-64 Vehicle Care
{ Warning { Warning { Warning
Driving on a flat tire will cause Lifting a vehicle and getting under Changing a tire can be permanent damage to the tire. it to do maintenance or repairs is dangerous. The vehicle can slip Re-inflating a tire after it has been dangerous without the off the jack and roll over or fall driven on while severely appropriate safety equipment and causing injury or death. Find a underinflated or flat may cause a training. If a jack is provided with level place to change the tire. To blowout and a serious crash. the vehicle, it is designed only for help prevent the vehicle from Never attempt to re-inflate a tire changing a flat tire. If it is used for moving: that has been driven on while anything else, you or others could 1. Set the parking brake firmly. severely underinflated or flat. be badly injured or killed if the Have your dealer or an authorized vehicle slips off the jack. If a jack 2. Put an automatic tire service center repair or is provided with the vehicle, only transmission in P (Park) or a replace the flat tire as soon as use it for changing a flat tire. manual transmission in possible. 1 (First) or R (Reverse). 3. Turn off the engine and do If a tire goes flat, avoid further tire not restart while the vehicle and wheel damage by driving slowly is raised. to a level place, well off the road, if possible. Turn on the hazard 4. Do not allow passengers to warning flashers. See Hazard remain in the vehicle. Warning Flashers on page 6-4. 5. Place wheel blocks, if equipped, on both sides of the tire at the opposite corner of the tire being changed. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (65,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-65
This vehicle may come with a jack The following information explains and spare tire or a tire sealant and how to repair or change a tire. { Warning compressor kit. To use the jacking equipment to change a spare tire Tire Sealant and Overinflating a tire could cause the tire to rupture and you or safely, follow the instructions below. Compressor Kit Then see Tire Changing on others could be injured. Be sure page 10-72. To use the tire sealant to read and follow the tire sealant and compressor kit, see Tire { Warning and compressor kit instructions Sealant and Compressor Kit on and inflate the tire to its page 10-65. Idling a vehicle in an enclosed recommended pressure. Do not area with poor ventilation is exceed the recommended When the vehicle has a flat tire (2), dangerous. Engine exhaust may pressure. use the following example as a enter the vehicle. Engine exhaust guide to assist you in the placement contains carbon monoxide (CO) of wheel blocks (1), if equipped. which cannot be seen or smelled. It can cause unconsciousness { Warning and even death. Never run the engine in an enclosed area that Storing the tire sealant and has no fresh air ventilation. For compressor kit or other more information, see Engine equipment in the passenger Exhaust on page 9-26. compartment of the vehicle could cause injury. In a sudden stop or collision, loose equipment could strike someone. Store the tire sealant and compressor kit in its 1. Wheel Block (If Equipped) original location. 2. Flat Tire Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (66,1) 7707475) - 2015 - CRC - 10/9/14
10-66 Vehicle Care
If this vehicle has a tire sealant and The kit includes: Tire Sealant compressor kit, there may not be a Read and follow the safe handling spare tire, tire changing equipment, instructions on the label adhered to and on some vehicles there may not the compressor. be a place to store a tire. Check the tire sealant expiration The tire sealant and compressor date on the sealant canister. The can be used to temporarily seal sealant canister should be replaced punctures up to 6 mm (0.25 in) in before its expiration date. the tread area of the tire. It can also Replacement sealant canisters are be used to inflate an under available at your local dealer. See inflated tire. “Removal and Installation of the If the tire has been separated from Sealant Canister” following. the wheel, has damaged sidewalls, There is only enough sealant to seal or has a large puncture, the tire is one tire. After usage, the sealant too severely damaged for the tire 1. On/Off Button canister and sealant/air hose sealant and compressor kit to be 2. Selector Switch (Sealant/Air assembly must be replaced. See effective. See Roadside Assistance or Air Only) “Removal and Installation of the Program on page 13-5. 3. Pressure Relief Button Sealant Canister” following. Read and follow all of the tire 4. Pressure Gauge sealant and compressor kit 5. Air Only Hose (Black) instructions. 6. Sealant/Air Hose (Clear) 7. Power Plug Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (67,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-67
Using the Tire Sealant and If a tire goes flat, avoid further tire 5. Attach the sealant/air hose (6) Compressor Kit to Temporarily and wheel damage by driving slowly onto the tire valve stem. Turn it Seal and Inflate a to a level place. Turn on the hazard clockwise until it is tight. Punctured Tire warning flashers. See Hazard 6. Plug the power plug (7) into the Warning Flashers on page 6-4. Follow the directions closely for accessory power outlet in the correct sealant usage. See If a Tire Goes Flat on vehicle. Unplug all items from page 10-63 for other important other accessory power outlets. safety warnings. If the vehicle has an accessory Do not remove any objects that power outlet, do not use the have penetrated the tire. cigarette lighter. 1. Remove the tire sealant and If the vehicle only has a cigarette compressor kit from its storage lighter, use the cigarette lighter. location. See Storing the Tire Do not pinch the power plug Sealant and Compressor Kit on cord in the door or window. page 10-72. 7. Start the vehicle. The vehicle 2. Unwrap the sealant/air hose (6) must be running while using the and the power plug (7). air compressor. 3. Place the kit on the ground. 8. Turn the selector switch (2) When using the tire sealant and Make sure the tire valve stem is clockwise to the Sealant + Air compressor kit during cold positioned close to the ground position. temperatures, warm the kit in a so the hose will reach it. heated environment for five minutes. 4. Remove the valve stem cap from This will help to inflate the tire the flat tire by turning it faster. counterclockwise. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (68,1) 7707475) - 2015 - CRC - 10/9/14
10-68 Vehicle Care
9. Press the on/off button (1) to reading. The compressor may 11. Press the on/off button (1) to turn the tire sealant and be turned on/off until the turn the tire sealant and compressor kit on. correct pressure is reached. compressor kit off. The compressor will inject The tire is not sealed and will sealant and air into the tire. { Caution continue to leak air until the vehicle is driven and the The pressure gauge (4) will If the recommended pressure initially show a high pressure sealant is distributed in the tire; cannot be reached after therefore, Steps 12–18 must be while the compressor pushes the approximately 25 minutes, the sealant into the tire. Once the done immediately after vehicle should not be driven Step 11. sealant is completely dispersed farther. The tire is too severely into the tire, the pressure will Be careful while handling the damaged and the tire sealant and quickly drop and start to rise tire sealant and compressor kit compressor kit cannot inflate the again as the tire inflates with as it could be warm after air only. tire. Remove the power plug from usage. the accessory power outlet and 10. Inflate the tire to the unscrew the inflating hose from 12. Unplug the power plug (7) from recommended inflation the tire valve. See Roadside the accessory power outlet in pressure using the pressure Assistance Program on the vehicle. gauge (4). The recommended page 13-5. 13. Turn the sealant/air hose (6) inflation pressure can be found counterclockwise to remove it on the Tire and Loading from the tire valve stem. Information label. See Tire Pressure on page 10-50. 14. Replace the tire valve stem cap. The pressure gauge (4) may read higher than the actual tire 15. Return the sealant/air hose (6) pressure while the compressor and the power plug (7) back in is on. Turn the compressor off their original locations. to get an accurate pressure Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (69,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-69
19. Stop at a safe location and 21. Dispose of the used sealant check the tire pressure. Refer canister and sealant/air hose to Steps 1–11 under “Using the (6) assembly at a local dealer Tire Sealant and Compressor or in accordance with local Kit without Sealant to Inflate a state codes and practices. Tire (Not Punctured).” 22. Replace it with a new canister 16. If the flat tire was able to inflate If the tire pressure has fallen available from your dealer. to the recommended inflation more than 68 kPa (10 psi) 23. After temporarily sealing a tire pressure, remove the below the recommended using the tire sealant and maximum speed label from the inflation pressure, stop driving compressor kit, take the sealant canister and place it in the vehicle. The tire is too vehicle to an authorized dealer a highly visible location. Do not severely damaged and the tire within 161 km (100 mi) of exceed the speed on this label sealant cannot seal the tire. driving to have the tire repaired until the damaged tire is See Roadside Assistance or replaced. repaired or replaced. Program on page 13-5. 17. Return the equipment to its If the tire pressure has not original storage location in the dropped more than 68 kPa vehicle. (10 psi) from the recommended 18. Immediately drive the vehicle inflation pressure, use the 8 km (5 mi) to distribute the compressor kit to inflate the tire sealant in the tire. to the recommended inflation pressure. 20. Wipe off any sealant from the wheel, tire, and vehicle. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (70,1) 7707475) - 2015 - CRC - 10/9/14
10-70 Vehicle Care
Using the Tire Sealant and See If a Tire Goes Flat on 6. Plug the power plug (7) into the Compressor Kit without page 10-63 for other important accessory power outlet in the Sealant to Inflate a Tire (Not safety warnings. vehicle. Unplug all items from Punctured) 1. Remove the tire sealant and other accessory power outlets. To use the air compressor to inflate compressor kit from its storage If the vehicle has an accessory a tire with air only and not sealant: location. See Storing the Tire power outlet, do not use the Sealant and Compressor Kit on cigarette lighter. page 10-72. If the vehicle only has a cigarette 2. Unwrap the air only hose (5) and lighter, use the cigarette lighter. the power plug (7). Do not pinch the power plug 3. Place the kit on the ground. cord in the door or window. Make sure the tire valve stem is 7. Start the vehicle. The vehicle positioned close to the ground must be running while using the so the hose will reach it. air compressor. 4. Remove the tire valve stem cap 8. Turn the selector switch (2) from the flat tire by turning it counterclockwise to the Air Only counterclockwise. position. 5. Attach the air only hose (5) onto 9. Press the on/off button (1) to If a tire goes flat, avoid further tire the tire valve stem by turning it turn the compressor on. and wheel damage by driving slowly clockwise until it is tight. The compressor will inflate the to a level place. Turn on the hazard tire with air only. warning flashers. See Hazard Warning Flashers on page 6-4. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (71,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-71
10. Inflate the tire to the 11. Press the on/off button (1) to Removal and Installation of the recommended inflation turn the tire sealant and Sealant Canister pressure using the pressure compressor kit off. To remove the sealant canister: gauge (4). The recommended Be careful while handling the inflation pressure can be found tire sealant and compressor kit on the Tire and Loading as it could be warm after Information label. See Tire usage. Pressure on page 10-50. 12. Unplug the power plug (7) from The pressure gauge (4) may the accessory power outlet in read higher than the actual tire the vehicle. pressure while the compressor is on. Turn the compressor off 13. Disconnect the air only to get an accurate reading. The hose (5) from the tire valve compressor may be turned on/ stem, by turning it off until the correct pressure is counterclockwise, and replace reached. If the tire is inflated the tire valve stem cap. higher than the recommended 14. Return the air only hose (5) 1. Remove the plastic cover. pressure, press the pressure and the power plug (7) back to relief button (3), if equipped, their original locations. 2. Unscrew the connector (2) from until the proper pressure the canister (1). reading is reached. This option 15. Return the equipment to its original storage location in the 3. Pull up on the canister (1) to is only functional when using remove it. the air only hose (5). vehicle. 4. Replace with a new canister which is available from your dealer. 5. Push the new canister into place. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (72,1) 7707475) - 2015 - CRC - 10/9/14
10-72 Vehicle Care
6. Screw the connector (2) to the 4. Remove the tire sealant and 3. Turn the retainer nut canister (1). compressor kit. counterclockwise and remove 7. Slide the plastic cover back on. To store the tire sealant and the spare tire. compressor kit, reverse the steps. 4. Place the spare tire next to the Storing the Tire Sealant tire being changed. and Compressor Kit Tire Changing To access the tire sealant and Removing the Spare Tire and compressor kit: Tools 1. Open the trunk. See Trunk on The equipment you need is located page 2-13. in the trunk. 2. Lift the cover. 1. Open the trunk. 2. Remove the spare tire cover.
1. Screwdriver 2. Tow Hook (If Equipped) 3. Jack 4. Wrench (In Bag) 5. Trim Removal (If Equipped) 6. Fastener (If Equipped) The jack and tools are stored below 3. Turn the wing nut the spare tire. counterclockwise to remove it. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (73,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-73
Place the tools next to the tire being changed. Removing the Flat Tire and Installing the Spare Tire 1. Do a safety check before proceeding. See If a Tire Goes Flat on page 10-63 for more information. 2. Turn the wheel wrench counterclockwise to loosen the wheel nut caps. 3. Turn the wheel wrench 4. Position the jack head, as If needed, finish loosening them counterclockwise to loosen all of shown. by hand. The nut caps will not the wheel nuts, but do not come off of the wheel cover. Set the jack to the necessary remove them yet. height before positioning it below The edge of the wheel cover the jacking point. could be sharp, so do not try to { Caution remove the cover with your bare 5. Attach the jack lift assist tool to hands. Do not drop the cap or Make sure that the jack lift head the jack by fitting both ends of lay it face down, as it could is in the correct position or you the jack and tool over one become scratched or damaged. may damage your vehicle. The another. Store the wheel cover in the repairs would not be covered by trunk until you have the flat tire your warranty. repaired or replaced. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (74,1) 7707475) - 2015 - CRC - 10/9/14
10-74 Vehicle Care
{ Warning { Warning
Getting under a vehicle when it is Lifting a vehicle and getting under lifted on a jack is dangerous. it to do maintenance or repairs is If the vehicle slips off the jack, dangerous without the you could be badly injured or appropriate safety equipment and killed. Never get under a vehicle training. If a jack is provided with when it is supported only by the vehicle, it is designed only for a jack. changing a flat tire. If it is used for anything else, you or others could be badly injured or killed if the vehicle slips off the jack. If a jack 6. Turn the jack handle clockwise { Warning is provided with the vehicle, only to raise the vehicle far enough Raising the vehicle with the jack use it for changing a flat tire. off the ground for the compact improperly positioned can spare to fit under the vehicle. damage the vehicle and even make the vehicle fall. To help avoid personal injury and vehicle damage, be sure to fit the jack lift head into the proper location before raising the vehicle. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (75,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-75
Warning (Continued) { Warning
an emergency, a cloth or a paper Never use oil or grease on bolts towel can be used; however, use or nuts because the nuts might a scraper or wire brush later to come loose. The vehicle's wheel remove all rust or dirt. could fall off, causing a crash.
11. Put the wheel nuts back on with the rounded end of the nuts toward the wheel. Turn each nut clockwise by hand 7. Remove all of the wheel nuts. until the wheel is held against the hub. 8. Remove the flat tire. 12. Lower the vehicle by turning the jack handle { Warning counterclockwise. Lower the Rust or dirt on a wheel, or on the jack completely. parts to which it is fastened, can make wheel nuts become loose { Warning after time. The wheel could come 9. Remove any rust or dirt from the Wheel nuts that are improperly or off and cause an accident. When wheel bolts, mounting surfaces, incorrectly tightened can cause changing a wheel, remove any and spare wheel. the wheels to become loose or rust or dirt from places where the 10. Install the compact spare tire. come off. The wheel nuts should wheel attaches to the vehicle. In be tightened with a torque wrench (Continued) (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (76,1) 7707475) - 2015 - CRC - 10/9/14
10-76 Vehicle Care
Warning (Continued) { Caution
to the proper torque specification Wheel covers will not fit on the after replacing. Follow the torque vehicle's compact spare. If you try specification supplied by the to put a wheel cover on the aftermarket manufacturer when compact spare, the cover or the using accessory locking wheel spare could be damaged. nuts. See Capacities and Specifications on page 12-2 for Storing a Flat or Spare Tire original equipment wheel nut and Tools torque specifications. 13. Tighten the wheel nuts firmly in { Warning a crisscross sequence, as { Caution shown. Storing a jack, a tire, or other 14. Lower the jack all the way and equipment in the passenger Improperly tightened wheel nuts remove the jack from under the compartment of the vehicle could can lead to brake pulsation and vehicle. cause injury. In a sudden stop or rotor damage. To avoid expensive collision, loose equipment could brake repairs, evenly tighten the 15. Tighten the wheel nuts firmly strike someone. Store all these in with the wheel wrench. wheel nuts in the proper the proper place. sequence and to the proper torque specification. See Capacities and Specifications on page 12-2 for the wheel nut torque specification. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (77,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-77
Storing a Flat or Spare Tire and 5. Turn the retainer nut clockwise Stop as soon as possible and check Tools With a Screw in Fastener to secure the tire. that the spare tire is correctly 6. Place the floor cover on the inflated after being installed on the wheel. vehicle. The compact spare tire is designed for temporary use only. The compact spare is for temporary The vehicle will perform differently use only. Replace the compact with the spare tire installed and it is spare tire with a full-size tire as recommended that the vehicle soon as you can. speed be limited to 80 km/h (50 mph). To conserve the tread of Compact Spare Tire the spare tire, have the standard tire repaired or replaced as soon as { Warning convenient and return the spare tire to the storage area. Driving with more than one When using a compact spare tire, 1. Turn the wrench compact spare tire at a time could the ABS and Traction Control counterclockwise to remove the result in loss of braking and systems may engage until the spare fastener. handling. This could lead to a tire is recognized by the vehicle, crash and you or others could be especially on slippery roads. Adjust 2. Replace the fastener with the injured. Use only one compact driving to reduce possible one provided in the foam. spare tire at a time. wheel slip. 3. Turn the wrench clockwise to tighten the fastener. If this vehicle has a compact spare 4. Replace the foam, jack and tire, it was fully inflated when new; tools, and the tire. however, it can lose air over time. Check the inflation pressure regularly. It should be 420 kPa (60 psi). Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (78,1) 7707475) - 2015 - CRC - 10/9/14
10-78 Vehicle Care
{ Caution Jump Starting When the compact spare is Jump Starting (On-board installed, do not take the vehicle with eAssist Only) through an automatic car wash with guide rails. The compact If the vehicle fails to crank, it may spare can get caught on the rails be jump started by using the eAssist which can damage the tire, wheel, battery to charge the 12-volt battery. and other parts of the vehicle. Use the following procedure to activate the on-board jump start using the DIC controls. Do not use the compact spare on other vehicles. DIC Buttons Do not mix the compact spare tire or The vehicle may be equipped with wheel with other wheels or tires. an ignition key or an electronic They will not fit. Keep the spare tire keyless ignition with pushbutton and its wheel together. start. Key Access { Caution Place the ignition key in the ON/ Tire chains will not fit the compact RUN position and proceed as spare. Using them can damage follows: the vehicle and the chains. Do not 1. Press S then scroll y or z use tire chains on the compact until the Settings menu displays. spare. 2. Press V to enter the Settings menu. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (79,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-79
3. Press T then scroll y or z 3. Press T then scroll y or z On-board jump starting may be until Jump Start displays. until Jump Start displays. unavailable due to the 12-volt battery charge level, the eAssist 4. Press V to activate the jump 4. Press V to activate the jump battery charge level, power start. start. capability, or an issue with the eAssist system. In these cases, the 5. The system will then ask for 5. The system will then ask for display will not be available because confirmation. If Yes is selected, confirmation. If Yes is selected, the jump start will begin and the the jump start will begin and the of the power issue, or the DIC will display JUMP START DISABLED display will show WAIT TO display will show WAIT TO SEE OWNERS MANUAL. START. START. 6. When the jump start is complete, 6. When the jump start is complete, Jump Starting (with or the display will show ATTEMPT the display will show ATTEMPT START or JUMP START START or JUMP START without eAssist) DISABLED. DISABLED. For more information about the vehicle battery, see Battery on Keyless Access If the vehicle is started, the on-board jump start function will be page 10-27. With the brake pedal not applied, automatically disabled. If the vehicle If the battery has run down, try to press and hold the ENGINE START/ cranks but does not start, the use another vehicle and some STOP button for more than procedure may be repeated again. jumper cables to start your vehicle. five seconds. This will place the If the vehicle start is still Be sure to use the following steps to vehicle in the Service Only Mode. unsuccessful, the jump start can be do it safely. Proceed as follows: attempted using the following jump 1. Press S then scroll y or z starting procedure under “Jump until the Settings menu displays. Starting (with or without eAssist).” 2. Press V to enter the Settings menu. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (80,1) 7707475) - 2015 - CRC - 10/9/14
10-80 Vehicle Care
The vehicle has a battery cover 3. Reverse Steps 1–2 to reinstall { Warning which must be removed to gain the battery cover. access to the battery for jump Batteries can hurt you. They can starting. be dangerous because: . They contain acid that can burn you. . They contain gas that can explode or ignite. . They contain enough electricity to burn you. If you do not follow these steps exactly, some or all of these things can hurt you. The vehicle has a remote positive (+) terminal under a trim cover. It is under the battery cover { Caution 1. Clips 2. Pivot Points on the driver side of the engine compartment. See Engine Ignoring these steps could result To remove the battery cover: Compartment Overview on in costly damage to the vehicle 1. Release the two rear clips (1). page 10-6. You should always use that would not be covered by the this remote positive terminal. vehicle warranty. Trying to start 2. Lift the battery cover up towards the vehicle by pushing or pulling it the front of the vehicle to release The jump start negative grounding will not work, and it could damage it from the pivot points (2) and point for the discharged battery is the vehicle. remove. the engine block or an engine Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (81,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-81
mounting bolt. Connect to a spot as far away from the discharged { Caution { Warning battery as possible. If any accessories are left on or Using a match near a battery can 1. Check the other vehicle. It must plugged in during the jump cause battery gas to explode. have a 12-volt battery with a starting procedure, they could be People have been hurt doing this, negative ground system. damaged. The repairs would not and some have been blinded. be covered by the vehicle Use a flashlight if you need more { Caution warranty. Whenever possible, turn light. off or unplug all accessories on Battery fluid contains acid that If the other vehicle does not have either vehicle when jump starting. a 12-volt system with a negative can burn you. Do not get it on ground, both vehicles can be you. If you accidentally get it in damaged. Only use a vehicle that 4. Turn the ignition to LOCK/OFF your eyes or on your skin, flush has a 12-volt system with a and switch off all lights and the place with water and get negative ground for jump starting. accessories in both vehicles, medical help immediately. except the hazard warning flashers if needed. 2. Position the two vehicles so that they are not touching. { Warning { Warning 3. Set the parking brake firmly and Fans or other moving engine put the shift lever in P (Park). An electric fan can start up even parts can injure you badly. Keep See Shifting Into Park on when the engine is not running page 9-24. and can injure you. Keep hands, your hands away from moving clothing and tools away from any parts once the engine is running. underhood electric fan. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (82,1) 7707475) - 2015 - CRC - 10/9/14
10-82 Vehicle Care
5. Connect one end of the red Towing the Vehicle positive (+) cable to the { Caution positive (+) terminal on the discharged battery. If the jumper cables are { Caution connected or removed in the 6. Connect the other end of the red wrong order, electrical shorting Incorrectly towing a disabled positive (+) cable to the may occur and damage the vehicle may cause damage. The positive (+) terminal of the good vehicle. The repairs would not be damage would not be covered by battery. covered by the vehicle warranty. the vehicle warranty. 7. Connect one end of the black Always connect and remove the negative (–) cable to the jumper cables in the correct order, Have the vehicle towed on a wheel negative (–) terminal of the good making sure that the cables do lift tow truck. A flatbed car carrier battery. not touch each other or other could damage the vehicle. The 8. Connect the other end of the metal. wheel lift tow truck must raise the black negative (–) cable to the rear of the vehicle and wheel dollies negative (–) grounding point for Jumper Cable Removal must be used to lift the front wheels the discharged battery. off the ground. Reverse the sequence exactly when 9. Start the engine in the vehicle removing the jumper cables. Consult your dealer or a with the good battery and run professional towing service if the the engine at idle speed for at disabled vehicle must be towed. least four minutes. 10. Try to start the vehicle that had the dead battery. If it will not start after a few tries, it probably needs service. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (83,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-83
Recreational Vehicle . Is the proper towing equipment going to be used? See your { Caution Towing dealer or trailering professional Recreational vehicle towing means for additional advice and If the vehicle is towed with all four towing the vehicle behind another equipment recommendations. wheels on the ground, the drivetrain components could be vehicle such as a motor home. The . Is the vehicle ready to be two most common types of towed? Just as preparing the damaged. The repairs would not recreational vehicle towing are vehicle for a long trip, make sure be covered by the vehicle known as dinghy towing and dolly the vehicle is prepared to be warranty. Do not tow the vehicle towing. Dinghy towing is towing the towed. with all four wheels on the vehicle with all four wheels on the ground. ground. Dolly towing is towing the Dinghy Towing vehicle with two wheels on the The vehicle was not designed to be ground and two wheels up on a towed with all four wheels on the device known as a dolly. ground. If the vehicle must be Here are some important things to towed, a dolly should be used. See consider before recreational vehicle the following information on dolly towing: towing. . What is the towing capacity of the towing vehicle? Be sure to read the tow vehicle manufacturer's recommendations. . What is the distance that will be traveled? Some vehicles have restrictions on how far and how long they can tow. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (84,1) 7707475) - 2015 - CRC - 10/9/14
10-84 Vehicle Care
Dolly Towing from the Front 4. Firmly set the parking brake. Dolly Towing from the Front (Front-Wheel Drive) 5. Use an adequate clamping (All-Wheel Drive) device designed for towing to ensure that the front wheels are locked into the straight-ahead position. 6. Secure the vehicle to the dolly following the manufacturer instructions. 7. Release the parking brake only after the vehicle being towed is firmly attached to the towing vehicle. 8. Turn the ignition to OFF. Vehicles with front-wheel drive can Vehicles with all-wheel drive cannot be dolly towed from the front. be dolly towed. Use the following procedure to dolly tow the vehicle from the front: 1. Attach the dolly to the tow vehicle following the dolly manufacturer instructions. 2. Drive the front wheels onto the dolly. 3. Shift the transmission to P (Park). Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (85,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-85
Dolly Towing from the Rear Appearance Care Caution (Continued) Exterior Care products can be obtained from your dealer. Follow all Locks manufacturer directions regarding Locks are lubricated at the factory. correct product usage, necessary Use a de-icing agent only when safety precautions, and absolutely necessary, and have the appropriate disposal of any locks greased after using. See vehicle care product. Recommended Fluids and Lubricants on page 11-12. Washing the Vehicle { Caution To preserve the vehicle's finish, The vehicle cannot be dolly towed wash it often and out of direct Avoid using high-pressure from the rear. sunlight. washes closer than 30 cm (12 in) to the surface of the vehicle. Use of power washers exceeding { Caution 8,274 kPa (1,200 psi) can result Do not use petroleum-based, in damage or removal of paint acidic, or abrasive cleaning and decals. agents as they can damage the vehicle's paint, metal, or plastic The e symbol is on any parts. If damage occurs, it would underhood compartment electrical not be covered by the vehicle center that should not be power warranty. Approved cleaning (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (86,1) 7707475) - 2015 - CRC - 10/9/14
10-86 Vehicle Care
washed. This could cause damage calcium chloride and other salts, ice that would not be covered by the melting agents, road oil and tar, tree Caution (Continued) vehicle warranty. sap, bird droppings, chemicals from may damage it. Use only If using an automatic car wash, industrial chimneys, etc., can damage the vehicle's finish if they non-abrasive waxes and polishes follow the car wash instructions. The that are made for a basecoat/ windshield wiper and rear window remain on painted surfaces. Wash the vehicle as soon as possible. clearcoat paint finish on the wiper, if equipped, must be off. vehicle. Remove any accessories that may If necessary, use non-abrasive be damaged or interfere with the car cleaners that are marked safe for wash equipment. painted surfaces to remove foreign To keep the paint finish looking new, matter. keep the vehicle garaged or Rinse the vehicle well, before covered whenever possible. washing and after, to remove all Occasional hand waxing or mild cleaning agents completely. If they polishing should be done to remove Protecting Exterior Bright Metal are allowed to dry on the surface, residue from the paint finish. See Moldings they could stain. your dealer for approved cleaning products. Dry the finish with a soft, clean { Caution chamois or an all-cotton towel to Do not apply waxes or polishes to avoid surface scratches and water uncoated plastic, vinyl, rubber, Failure to clean and protect the spotting. decals, simulated wood, or flat paint bright metal moldings can result as damage can occur. in a hazy white finish or pitting. Finish Care This damage would not be Application of aftermarket clearcoat { Caution covered by the vehicle warranty. sealant/wax materials is not recommended. If painted surfaces Machine compounding or are damaged, see your dealer to aggressive polishing on a have the damage assessed and basecoat/clearcoat paint finish repaired. Foreign materials such as (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (87,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-87
The bright metal moldings on the Cleaning Exterior Lamps/ . Aftermarket appearance caps or vehicle are aluminum or stainless Lenses, Emblems, Decals and covers while the lamps are steel. To prevent damage always Stripes illuminated, due to excessive follow these cleaning instructions: heat generated. Use only lukewarm or cold water, a . Be sure the molding is cool to soft cloth, and a car washing soap { Caution the touch before applying any to clean exterior lamps, lenses, cleaning solution. emblems, decals and stripes. Follow Failure to clean lamps properly . Use a cleaning solution instructions under "Washing the can cause damage to the lamp approved for aluminum or Vehicle" previously in this section. cover that would not be covered stainless steel. Some cleaners Lamp covers are made of plastic, by the vehicle warranty. are highly acidic or contain and some have a UV protective alkaline substances and can coating. Do not clean or wipe them damage the moldings. when dry. { Caution . Always dilute a concentrated Do not use any of the following on cleaner according to the lamp covers: Using wax on low gloss black manufacturer’s instructions. . Abrasive or caustic agents. finish stripes can increase the . Do not use chrome cleaners. gloss level and create a . Washer fluids and other cleaning non-uniform finish. Clean low . Do not use cleaners that are not agents in higher concentrations intended for automotive use. gloss stripes with soap and than suggested by the water only. . Use a nonabrasive wax on the manufacturer. vehicle after washing to protect . Solvents, alcohols, fuels, and extend the molding finish. or other harsh cleaners. Air Intakes . Ice scrapers or other hard items. Clear debris from the air intakes, between the hood and windshield when washing the vehicle. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (88,1) 7707475) - 2015 - CRC - 10/9/14
10-88 Vehicle Care
Windshield and Wiper Blades can be removed by rubbing with a clean cloth. See Recommended { Caution Clean the outside of the windshield Fluids and Lubricants on with glass cleaner. page 11-12. Chrome wheels and other chrome Clean rubber blades using a lint-free trim may be damaged if the cloth or paper towel soaked with Tires vehicle is not washed after driving windshield washer fluid or a mild Use a stiff brush with tire cleaner to on roads that have been sprayed detergent. Wash the windshield clean the tires. with magnesium, calcium, thoroughly when cleaning the or sodium chloride. These blades. Bugs, road grime, sap, and { Caution chlorides are used on roads for a buildup of vehicle wash/wax conditions such as ice and dust. treatments may cause wiper Using petroleum-based tire Always wash the chrome with streaking. dressing products on the vehicle soap and water after exposure. Replace the wiper blades if they are may damage the paint finish and/ worn or damaged. Damage can be or tires. When applying a tire caused by extreme dusty dressing, always wipe off any { Caution conditions, sand, salt, heat, sun, overspray from all painted snow, and ice. surfaces on the vehicle. To avoid surface damage, do not Weatherstrips use strong soaps, chemicals, abrasive polishes, cleaners, Apply Dielectric silicone grease on Wheels and Trim — Aluminum or Chrome brushes, or cleaners that contain weatherstrips to make them last acid on aluminum or longer, seal better, and not stick or Use a soft, clean cloth with mild chrome-plated wheels. Use only squeak. Lubricate weatherstrips at soap and water to clean the wheels. approved cleaners. Also, never least once a year. Hot, dry climates After rinsing thoroughly with clean drive a vehicle with aluminum or may require more frequent water, dry with a soft, clean towel. chrome-plated wheels through an application. Black marks from A wax may then be applied. rubber material on painted surfaces (Continued) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (89,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-89
silicone grease on weatherstrips Finish Damage Caution (Continued) with a clean cloth will make them Quickly repair minor chips and last longer, seal better, and not stick scratches with touch-up materials automatic car wash that uses or squeak. silicone carbide tire cleaning available from your dealer to avoid brushes. Damage could occur Underbody Maintenance corrosion. Larger areas of finish and the repairs would not be damage can be corrected in your At least twice a year, spring and fall dealer's body and paint shop. covered by the vehicle warranty. use plain water to flush any corrosive materials from the Chemical Paint Spotting underbody. Take care to thoroughly Steering, Suspension, and Airborne pollutants can fall upon clean any areas where mud and Chassis Components and attack painted vehicle surfaces other debris can collect. Visually inspect steering, causing blotchy, ring-shaped suspension, and chassis Sheet Metal Damage discolorations, and small, irregular dark spots etched into the paint components for damaged, loose, If the vehicle is damaged and or missing parts or signs of wear at surface. See “Finish Care” requires sheet metal repair or previously in this section. least once a year. replacement, make sure the body Inspect power steering for proper repair shop applies anti-corrosion Interior Care hook-up, binding, leaks, cracks, material to parts repaired or chafing, etc. replaced to restore corrosion To prevent dirt particle abrasions, protection. regularly clean the vehicle's interior. Visually check constant velocity joint Immediately remove any soils. Note boots and axle seals for leaks. Original manufacturer replacement parts will provide the corrosion that newspapers or dark garments Body Component Lubrication protection while maintaining the that can transfer color to home vehicle warranty. furnishings can also permanently Lubricate all key lock cylinders, transfer color to the vehicle's hood hinges, liftgate hinges, steel interior. fuel door hinge, unless the components are plastic. Applying Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (90,1) 7707475) - 2015 - CRC - 10/9/14
10-90 Vehicle Care
Use a soft bristle brush to remove To prevent damage, do not clean Interior Glass dust from knobs and crevices on the the interior using the following To clean, use a terry cloth fabric instrument cluster. Using a mild cleaners or techniques: dampened with water. Wipe droplets soap solution, immediately remove . Never use a razor or any other left behind with a clean dry cloth. hand lotions, sunscreen, and insect sharp object to remove a soil Commercial glass cleaners may be repellent from all interior surfaces or from any interior surface. used, if necessary, after cleaning permanent damage may result. . Never use a brush with stiff the interior glass with plain water. Your dealer may have products for bristles. cleaning the interior. Use cleaners { Caution specifically designed for the . Never rub any surface surfaces being cleaned to prevent aggressively or with excessive To prevent scratching, never use permanent damage. Apply all pressure. abrasive cleaners on automotive cleaners directly to the cleaning . Do not use laundry detergents or glass. Abrasive cleaners or cloth. Do not spray cleaners directly dishwashing soaps with aggressive cleaning may damage on any switches or controls. degreasers. For liquid cleaners, the rear window defogger. Cleaners should be removed use approximately 20 drops per quickly. Never allow cleaners to 3.8 L (1 gal) of water. remain on the surface being A concentrated soap solution will Cleaning the windshield with water cleaned for extended periods leave a residue that creates during the first three to six months of time. streaks and attracts dirt. Do not of ownership will reduce tendency to fog. Cleaners may contain solvents that use solutions that contain strong can become concentrated in the or caustic soap. Speaker Covers interior. Before using cleaners, read . Do not heavily saturate the Vacuum around a speaker cover and adhere to all safety instructions upholstery when cleaning. on the label. While cleaning the gently, so that the speaker will not interior, maintain adequate . Do not use solvents or cleaners be damaged. Clean spots with just ventilation by opening the doors and containing solvents. water and mild soap. windows. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (91,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-91
Coated Moldings To clean: cleaner or spot lifter. Test a small hidden area for colorfastness before Coated moldings should be cleaned. 1. Saturate a clean lint-free colorfast cloth with water. using a commercial upholstery . When lightly soiled, wipe with a Microfiber cloth is recommended cleaner or spot lifter. If ring sponge or soft lint-free cloth to prevent lint transfer to the formation occurs, clean the entire dampened with water. fabric or carpet. fabric or carpet. . When heavily soiled, use warm 2. Remove excess moisture by Following the cleaning process, a soapy water. gently wringing until water does paper towel can be used to blot excess moisture. Fabric/Carpet/Suede not drip from the cleaning cloth. Start by vacuuming the surface 3. Start on the outside edge of the Cleaning High Gloss Surfaces using a soft brush attachment. If a soil and gently rub toward the and Vehicle Information and rotating brush attachment is being center. Fold the cleaning cloth to Radio Displays used during vacuuming, only use it a clean area frequently to For vehicles with high gloss on the floor carpet. Before cleaning, prevent forcing the soil in to the surfaces or vehicle displays, use a gently remove as much of the soil fabric. microfiber cloth to wipe surfaces. as possible using one of the 4. Continue gently rubbing the Before wiping the surface with the following techniques: soiled area until there is no microfiber cloth, use a soft bristle . Gently blot liquids with a paper longer any color transfer from brush to remove dirt that could towel. Continue blotting until no the soil to the cleaning cloth. scratch the surface. Then use the more soil can be removed. 5. If the soil is not completely microfiber cloth by gently rubbing to clean. Never use window cleaners . removed, use a mild soap For solid soils, remove as much or solvents. Periodically hand wash as possible prior to vacuuming. solution followed only by plain water. the microfiber cloth separately, using mild soap. Do not use bleach If the soil is not completely or fabric softener. Rinse thoroughly removed, it may be necessary to and air dry before next use. use a commercial upholstery Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (92,1) 7707475) - 2015 - CRC - 10/9/14
10-92 Vehicle Care
{ Caution { Caution { Caution
Do not attach a device with a Soaking or saturating leather, Use of air fresheners may cause suction cup to the display. This especially perforated leather, as permanent damage to plastics may cause damage and would well as other interior surfaces, and painted surfaces. If an air not be covered by the vehicle may cause permanent damage. freshener comes in contact with warranty. Wipe excess moisture from these any plastic or painted surface in surfaces after cleaning and allow the vehicle, blot immediately and Instrument Panel, Leather, them to dry naturally. Never use clean with a soft cloth dampened Vinyl, Other Plastic Surfaces, heat, steam, or spot removers. Do with a mild soap solution. not use cleaners that contain Damage caused by air fresheners Low Gloss Paint Surfaces and silicone or wax-based products. would not be covered by the Natural Open Pore Wood Cleaners containing these vehicle warranty. Surfaces solvents can permanently change Use a soft microfiber cloth the appearance and feel of Cargo Cover and dampened with water to remove leather or soft trim, and are not Convenience Net dust and loose dirt. For a more recommended. thorough cleaning, use a soft Wash with warm water and mild microfiber cloth dampened with a detergent. Do not use chlorine mild soap solution. Do not use cleaners that increase bleach. Rinse with cold water, and gloss, especially on the instrument then dry completely. panel. Reflected glare can decrease visibility through the windshield Care of Safety Belts under certain conditions. Keep belts clean and dry. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (93,1) 7707475) - 2015 - CRC - 10/9/14
Vehicle Care 10-93
Use the following guidelines for Removing and Replacing the { Warning proper floor mat usage: Floor Mats Do not bleach or dye safety belts. . The original equipment floor Pull up on the rear of the floor mat It may severely weaken them. In mats were designed for your to unlock each retainer and remove. a crash, they might not be able to vehicle. If the floor mats need provide adequate protection. replacing, it is recommended Clean safety belts only with mild that GM certified floor mats be soap and lukewarm water. purchased. Non-GM floor mats may not fit properly and may interfere with the accelerator or Floor Mats brake pedal. Always check that the floor mats do not interfere with the pedals. { Warning . Do not use a floor mat if the If a floor mat is the wrong size or vehicle is not equipped with a is not properly installed, it can floor mat retainer on the driver interfere with the pedals. side floor. Interference with the pedals can . Use the floor mat with the Reinstall by lining up the floor mat cause unintended acceleration correct side up. Do not turn retainer openings over the carpet and/or increased stopping it over. retainers and snap into position. distance which can cause a crash . and injury. Make sure the floor Do not place anything on top of Make sure the floor mat is properly the driver side floor mat. secured in place. mat does not interfere with the pedals. . Use only a single floor mat on Verify the floor mat does not the driver side. interfere with the pedals. . Do not place one floor mat on top of another. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (94,1) 7707475) - 2015 - CRC - 10/9/14
10-94 Vehicle Care
2 NOTES Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
Service and Maintenance 11-1
General Information technicians, the dealer is the place Service and for routine maintenance such as oil Maintenance Your vehicle is an important changes and tire rotations and investment. This section describes additional maintenance items like the required maintenance for the tires, brakes, batteries, and wiper General Information vehicle. Follow this schedule to help blades. General Information ...... 11-1 protect against major repair expenses resulting from neglect or { Caution Maintenance Schedule inadequate maintenance. It may Maintenance Schedule ...... 11-2 also help to maintain the value of Damage caused by improper the vehicle if it is sold. It is the Special Application Services maintenance can lead to costly responsibility of the owner to have repairs and may not be covered Special Application all required maintenance performed. Services ...... 11-8 by the vehicle warranty. Your dealer has trained technicians Maintenance intervals, checks, Additional Maintenance who can perform required inspections, recommended fluids, and Care maintenance using genuine and lubricants are important to Additional Maintenance replacement parts. They have keep the vehicle in good working and Care ...... 11-8 up-to-date tools and equipment for condition. fast and accurate diagnostics. Many Recommended Fluids, dealers have extended evening and Lubricants, and Parts Saturday hours, courtesy The Tire Rotation and Required Recommended Fluids and transportation, and online Services are the responsibility of the Lubricants ...... 11-12 scheduling to assist with service vehicle owner. It is recommended to Maintenance Replacement needs. have your dealer perform these Parts ...... 11-13 services every 12 000 km/7,500 mi. Your dealer recognizes the Proper vehicle maintenance helps to Maintenance Records importance of providing keep the vehicle in good working Maintenance Records ...... 11-14 competitively priced maintenance condition, improves fuel economy, and repair services. With trained and reduces vehicle emissions. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
11-2 Service and Maintenance
Because of the way people use . Frequently towing a trailer. Maintenance vehicles, maintenance needs vary. . Used for high speed or There may need to be more competitive driving. Schedule frequent checks and services. The . Additional Required Services - Used for taxi, police, or delivery Owner Checks and Services service. Normal are for vehicles that: At Each Fuel Stop . Carry passengers and cargo Refer to the information in the Maintenance Schedule Additional . Check the engine oil level. See within recommended limits on Engine Oil on page 10-11. the Tire and Loading Information Required Services - Severe chart. label. See Vehicle Load Limits Once a Month on page 9-10. { Warning . Check the tire inflation . Are driven on reasonable road Performing maintenance work can pressures. See Tire Pressure on page 10-50. surfaces within legal driving be dangerous and can cause limits. serious injury. Perform . Inspect the tires for wear. See . Use the recommended fuel. See maintenance work only if the Tire Inspection on page 10-56. Fuel on page 9-58. required information, proper tools, . Check the windshield washer Refer to the information in the and equipment are available. fluid level. See Washer Fluid on Maintenance Schedule Additional If they are not, see your dealer to page 10-24. Required Services - Normal chart. have a trained technician do the work. See Doing Your Own The Additional Required Services - Service Work on page 10-4. Severe are for vehicles that are: . Mainly driven in heavy city traffic in hot weather. . Mainly driven in hilly or mountainous terrain. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
Service and Maintenance 11-3
Engine Oil Change Tire Rotation and Required . Visually inspect windshield wiper blades for wear, cracking, When the CHANGE ENGINE OIL Services Every 12 000 km/ 7,500 mi or contamination. See Exterior SOON message displays, have the Care on page 10-85. Replace engine oil and filter changed within Rotate the tires, if recommended for worn or damaged wiper blades. the next 1 000 km/600 mi. If driven the vehicle, and perform the See Wiper Blade Replacement under the best conditions, the following services. See Tire on page 10-30. engine oil life system may not Rotation on page 10-56. indicate the need for vehicle service . Check tire inflation pressures. for up to a year. The engine oil and . Check engine oil level and oil See Tire Pressure on filter must be changed at least once life percentage. If needed, page 10-50. change engine oil and filter, and a year and the oil life system must . Inspect tire wear. See Tire reset oil life system. See Engine be reset. Your trained dealer Inspection on page 10-56. technician can perform this work. Oil on page 10-11 and Engine . Visually check for fluid leaks. If the engine oil life system is reset Oil Life System on page 10-13. accidentally, service the vehicle . Check engine coolant level. See . Inspect engine air cleaner filter. within 5 000 km/3,000 mi since the Engine Coolant on page 10-19. See Engine Air Cleaner/Filter on last service. Reset the oil life page 10-15. . Check windshield washer fluid system when the oil is changed. level. See Washer Fluid on . Inspect brake system. See Engine Oil Life System on page 10-24. page 10-13. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
11-4 Service and Maintenance
. Visually inspect steering, . Check starter switch. See Starter . Visually inspect gas strut for suspension, and chassis Switch Check on page 10-28. signs of wear, cracks, or other components for damaged, loose, damage. Check the hold open . Check automatic transmission or missing parts or signs of shift lock control function. See ability of the strut. See your wear. See Exterior Care on Automatic Transmission Shift dealer if service is required. page 10-85. Lock Control Function Check on . Check tire sealant expiration . Check restraint system page 10-29. date, if equipped. See Tire components. See Safety System Sealant and Compressor Kit on . Check ignition transmission lock. Check on page 3-19. See Ignition Transmission Lock page 10-65. . Visually inspect fuel system for Check on page 10-29. . Inspect sunroof track and seal, damage or leaks. if equipped. See Sunroof on . Check parking brake and page 2-23. . Visually inspect exhaust system automatic transmission park and nearby heat shields for mechanism. See Park Brake and loose or damaged parts. P (Park) Mechanism Check on page 10-29. . Lubricate body components. See Exterior Care on page 10-85. . Check accelerator pedal for damage, high effort, or binding. Replace if needed. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (5,1) 7707475) - 2015 - CRC - 10/9/14
Service and Maintenance 11-5
Maintenance Schedule
Additional Required 12 000 km/7,500 mi 24 000 km/15,000 mi 36 000 km/22,500 mi 48 000 km/30,000 mi 60 000 km/37,500 mi 72 000 km/45,000 mi 84 000 km/52,500 mi 96 000 km/60,000 mi 108 000 km/67,500 mi 120 000 km/75,000 mi 132 000 km/82,500 mi 144 000 km/90,000 mi 156 000 km/97,500 mi 180 000 km/112,500 mi Services - Normal 168 000 km/105,000 mi 192 000 km/120,000 mi 204 000 km/127,500 mi 216 000 km/135,000 mi 228 000 km/142,500 mi 240 000 km/150,000 mi
Rotate tires and perform Required Services. Check engine oil level and oil life percentage. @@@@@@@@@@@@@@@@@@@@ Change engine oil and filter, if needed. Replace passenger compartment air filter. (1) @ @ @ @ @ @ Inspect evaporative control system. (2) @ @ @ Replace engine air cleaner filter. (3) @ @ @ Replace spark plugs. Inspect spark plug wires. @ Drain and fill engine cooling system. (4) @ Except with eAssist: Visually inspect accessory @ drive belts. (5) Vehicles with eAssist: Visually inspect accessory @ drive belts. (5) Replace brake fluid. (6) @ @ @ Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (6,1) 7707475) - 2015 - CRC - 10/9/14
11-6 Service and Maintenance
Footnotes — Maintenance (2) Check all fuel and vapor lines (5) Or every 10 years, whichever Schedule Additional Required and hoses for proper hook-up, comes first. Inspect for fraying, Services - Normal routing, and condition. excessive cracking, or damage; (1) Or every two years, whichever (3) Or every four years, whichever replace, if needed. comes first. More frequent comes first. (6) Or every three years, whichever replacement may be needed if the (4) Or every five years, whichever comes first. vehicle is driven in areas with heavy comes first. See Cooling System on traffic, areas with poor air quality, page 10-17. or areas with high dust levels. Replacement may also be needed if there is a reduction in air flow, excessive window fogging, or odors. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (7,1) 7707475) - 2015 - CRC - 10/9/14
Service and Maintenance 11-7
Maintenance Schedule
Additional Required 12 000 km/7,500 mi 24 000 km/15,000 mi 36 000 km/22,500 mi 48 000 km/30,000 mi 60 000 km/37,500 mi 72 000 km/45,000 mi 84 000 km/52,500 mi 96 000 km/60,000 mi 108 000 km/67,500 mi 120 000 km/75,000 mi 132 000 km/82,500 mi 144 000 km/90,000 mi 156 000 km/97,500 mi 180 000 km/112,500 mi Services - Severe 168 000 km/105,000 mi 192 000 km/120,000 mi 204 000 km/127,500 mi 216 000 km/135,000 mi 228 000 km/142,500 mi 240 000 km/150,000 mi
Rotate tires and perform Required Services. Check engine oil level and oil life percentage. @@@@@@@@@@@@@@@@@@@@ Change engine oil and filter, if needed. Replace passenger compartment air filter. (1) @ @ @ @ @ @ Inspect evaporative control system. (2) @ @ @ Replace engine air cleaner filter. (3) @ @ @ Change automatic transmission fluid. @ @ @ Replace spark plugs. Inspect spark plug wires. @ Drain and fill engine cooling system. (4) @ Except with eAssist: Visually inspect accessory @ drive belts. (5) Vehicles with eAssist: Visually inspect accessory @ drive belts. (6) Replace brake fluid. (6) @ @ @ Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (8,1) 7707475) - 2015 - CRC - 10/9/14
11-8 Service and Maintenance
Footnotes — Maintenance Special Application Additional Schedule Additional Required Services - Severe Services Maintenance and Care (1) Or every two years, whichever . Severe Commercial Use Your vehicle is an important comes first. More frequent Vehicles Only: Lubricate chassis investment and caring for it properly replacement may be needed if the components every 5 000 km/ may help to avoid future costly vehicle is driven in areas with heavy 3,000 mi. repairs. To maintain vehicle traffic, areas with poor air quality, performance, additional . Have underbody flushing service or areas with high dust levels. performed. See "Underbody maintenance services may be Replacement may also be needed if Maintenance" in Exterior Care required. there is a reduction in air flow, on page 10-85. It is recommended that your dealer excessive window fogging, or odors. perform these services — their (2) Check all fuel and vapor lines trained dealer technicians know and hoses for proper hook-up, your vehicle best. Your dealer can routing, and condition. also perform a thorough (3) Or every four years, whichever assessment with a multi-point comes first. inspection to recommend when your vehicle may need attention. (4) Or every five years, whichever comes first. See Cooling System on The following list is intended to page 10-17. explain the services and conditions to look for that may indicate (5) Or every 10 years, whichever services are required. comes first. Inspect for fraying, excessive cracking, or damage; replace, if needed. (6) Or every three years, whichever comes first. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (9,1) 7707475) - 2015 - CRC - 10/9/14
Service and Maintenance 11-9
Battery Brakes Hoses The battery supplies power to start Brakes stop the vehicle and are Hoses transport fluids and should the engine and operate any crucial to safe driving. be regularly inspected to ensure additional electrical accessories. that there are no cracks or leaks. . Signs of brake wear may include With a multi-point inspection, your . To avoid break-down or failure to chirping, grinding, or squealing start the vehicle, maintain a noises, or difficulty stopping. dealer can inspect the hoses and battery with full cranking power. advise if replacement is needed. . Trained dealer technicians have . Trained dealer technicians have access to tools and equipment Lamps the diagnostic equipment to test to inspect the brakes and Properly working headlamps, the battery and ensure that the recommend quality parts taillamps, and brake lamps are connections and cables are engineered for the vehicle. important to see and be seen on corrosion-free. Fluids the road. . Belts Proper fluid levels and approved Signs that the headlamps need attention include dimming, failure . Belts may need replacing if they fluids protect the vehicle’s systems squeak or show signs of and components. See to light, cracking, or damage. cracking or splitting. Recommended Fluids and The brake lamps need to be Lubricants on page 11-12 for GM checked periodically to ensure . Trained dealer technicians have that they light when braking. access to tools and equipment approved fluids. . With a multi-point inspection, to inspect the belts and . Engine oil and windshield recommend adjustment or washer fluid levels should be your dealer can check the lamps replacement when necessary. checked at every fuel fill. and note any concerns. . Instrument cluster lights may come on to indicate that fluids may be low and need to be filled. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (10,1) 7707475) - 2015 - CRC - 10/9/14
11-10 Service and Maintenance
Shocks and Struts Tires . Trained dealer technicians can inspect and recommend the right Shocks and struts help aid in control Tires need to be properly inflated, tires. Your dealer can also for a smoother ride. rotated, and balanced. Maintaining provide tire/wheel balancing the tires can save money and fuel, . Signs of wear may include services to ensure smooth steering wheel vibration, bounce/ and can reduce the risk of tire vehicle operation at all speeds. sway while braking, longer failure. Your dealer sells and services stopping distance, or uneven . Signs that the tires need to be name brand tires. tire wear. replaced include three or more Vehicle Care visible treadwear indicators; cord . As part of the multi-point To help keep the vehicle looking like inspection, trained dealer or fabric showing through the new, vehicle care products are technicians can visually inspect rubber; cracks or cuts in the available from your dealer. For the shocks and struts for signs tread or sidewall; or a bulge or information on how to clean and of leaking, blown seals, split in the tire. protect the vehicle s interior and or damage, and can advise ’ exterior, see Interior Care on when service is needed. page 10-89 and Exterior Care on page 10-85. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (11,1) 7707475) - 2015 - CRC - 10/9/14
Service and Maintenance 11-11
Wheel Alignment Windshield Wiper Blades Wheel alignment is critical for For safety, appearance, and the Wiper blades need to be cleaned ensuring that the tires deliver best viewing, keep the windshield and kept in good condition to optimal wear and performance. clean and clear. provide a clear view. . Signs that the alignment may . Signs of damage include . Signs of wear include streaking, need to be adjusted include scratches, cracks, and chips. skipping across the windshield, pulling, improper vehicle and worn or split rubber. . Trained dealer technicians can handling, or unusual tire wear. inspect the windshield and . Trained dealer technicians can . Your dealer has the required recommend proper replacement check the wiper blades and equipment to ensure proper if needed. replace them when needed. wheel alignment. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (12,1) 7707475) - 2015 - CRC - 10/9/14
11-12 Service and Maintenance
Recommended Fluids, Lubricants, and Parts Recommended Fluids and Lubricants Usage Fluid/Lubricant Engine Oil Use only engine oil meeting the dexos1™ specification of the proper SAE viscosity grade. Look for the dexos1 approved logo for GM approved engine oil. See Engine Oil on page 10-11. Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL® Coolant. See Engine Coolant on page 10-19. Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 19299818, in Canada 19299819). Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements. Hydraulic Power Steering System DEXRON®-VI Automatic Transmission Fluid. (If Equipped) Automatic Transmission DEXRON®-VI Automatic Transmission Fluid. Hood Latch Assembly, Secondary Lubriplate Lubricant Aerosol (GM Part No. 89021668, in Latch, Pivots, Spring Anchor, and Canada 89021674) or lubricant meeting requirements of NLGI #2, Release Pawl Category LB or GC-LB. Key Lock Cylinders, Hood and Door Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in Hinges Canada 10953474). Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No. 3634770, in Canada 10953518) or Dielectric Silicone Grease (GM Part No. 12345579, in Canada 10953481). Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (13,1) 7707475) - 2015 - CRC - 10/9/14
Service and Maintenance 11-13
Maintenance Replacement Parts Replacement parts identified below by name, part number, or specification can be obtained from your dealer. Part GM Part Number ACDelco Part Number Engine Air Cleaner/Filter 55560894 A3128C Engine Oil Filter 2.4L L4 Engine 12605566 PF457G 3.6L V6 Engine 89017525 PF63 Passenger Compartment Air Filter 13271191 CF176 Spark Plugs 2.4L L4 Engine 12620540 41–108 3.6L V6 Engine 12622561 41–109 Wiper Blades Driver Side – 65 cm (25.6 in) 25892079 — Passenger Side – 45 cm (17.7 in) 25882578 — Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (14,1) 7707475) - 2015 - CRC - 10/9/14
11-14 Service and Maintenance
Maintenance Records After the scheduled services are performed, record the date, odometer reading, who performed the service, and the type of services performed in the boxes provided. Retain all maintenance receipts. Odometer Date Serviced By Services Performed Reading Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (15,1) 7707475) - 2015 - CRC - 10/9/14
Service and Maintenance 11-15
Odometer Date Serviced By Services Performed Reading Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (16,1) 7707475) - 2015 - CRC - 10/9/14
11-16 Service and Maintenance
Odometer Date Serviced By Services Performed Reading Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
Technical Data 12-1
Technical Data Vehicle Identification Engine Identification The eighth character in the VIN is Vehicle Identification the engine code. This code Vehicle Identification Number (VIN) identifies the vehicle's engine, Vehicle Identification specifications, and replacement Number (VIN) ...... 12-1 parts. See “Engine Specifications” Service Parts Identification under Capacities and Specifications Label ...... 12-1 on page 12-2 for the vehicle's engine code. Vehicle Data Capacities and Specifications ...... 12-2 Service Parts Engine Drive Belt Routing . . . 12-4 Identification Label This label, in the trunk, has the following information: . Vehicle Identification Number (VIN). . Model designation. This legal identifier is in the front . Paint information. corner of the instrument panel, on . the left side of the vehicle. It can be Production options and special seen through the windshield from equipment. outside. The VIN also appears on Do not remove this label from the the Vehicle Certification and Service vehicle. Parts labels and certificates of title and registration. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
12-2 Technical Data
Vehicle Data Capacities and Specifications Capacities Application Metric English Air Conditioning Refrigerant For the air conditioning system refrigerant type and charge amount, see the refrigerant label under the hood. See your dealer for more information. Engine Cooling System 2.4L L4 Engine 9.6 L 10.1 qt 3.6L V6 Engine 9.4 L 9.9 qt Engine Oil with Filter 2.4L L4 Engine 4.7 L 5.0 qt 3.6L V6 Engine 5.7 L 6.0 qt Fuel Tank 2.4L L4 Engine 62.8 L 16.6 gal 3.6L V6 Engine, AWD 74.0 L 19.5 gal 3.6L V6 Engine, FWD 70.5 L 18.6 gal Wheel Nut Torque 150 Y 110 lb ft Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
Technical Data 12-3
Capacities Application Metric English All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this manual. Recheck fluid level after filling.
Engine Specifications Engine VIN Code Transmission Spark Plug Gap 2.4L L4 Engine R Automatic 0.75–0.90 mm (0.030– 0.035 in) 3.6L V6 Engine 3 Automatic 0.95–1.10 mm (0.037– 0.043 in) Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
12-4 Technical Data
Engine Drive Belt Routing
3.6L V6 Engine 2.4L L4 Engine Belt removal and installation requires special tools. See your dealer for service. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
Customer Information 13-1
Reporting Safety Defects Customer Information Customer Reporting Safety Defects to Information the United States Government ...... 13-12 Customer Satisfaction Reporting Safety Defects to Procedure Customer Information the Canadian Your satisfaction and goodwill are Customer Satisfaction Government ...... 13-13 important to your dealer and to Procedure ...... 13-1 Reporting Safety Defects to Buick. Normally, any concerns with General Motors ...... 13-13 Customer Assistance the sales transaction or the Offices ...... 13-3 Vehicle Data Recording and operation of the vehicle will be Customer Assistance for Text resolved by your dealer's sales or Telephone (TTY) Users . . . . . 13-4 Privacy Vehicle Data Recording and service departments. Sometimes, Online Owner Center ...... 13-4 however, despite the best intentions GM Mobility Reimbursement Privacy ...... 13-14 Event Data Recorders ...... 13-14 of all concerned, misunderstandings Program ...... 13-5 ® can occur. If your concern has not Roadside Assistance OnStar ...... 13-15 Infotainment System ...... 13-15 been resolved to your satisfaction, Program ...... 13-5 the following steps should be taken: Scheduling Service Appointments ...... 13-7 STEP ONE: Discuss your concern Courtesy Transportation with a member of dealership Program ...... 13-7 management. Normally, concerns Collision Damage Repair . . . . 13-8 can be quickly resolved at that level. Service Publications If the matter has already been Ordering Information ...... 13-11 reviewed with the sales, service, Radio Frequency or parts manager, contact the owner Identification (RFID) ...... 13-12 of your dealership or the general Radio Frequency manager. Statement ...... 13-12 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
13-2 Customer Information
STEP TWO: If after contacting a When contacting Buick, remember 40 days. If you do not agree with the member of dealership management, that your concern will likely be decision given in your case, you it appears your concern cannot be resolved at a dealer's facility. That is may reject it and proceed with any resolved by your dealership without why we suggest following Step One other venue for relief available further help, in the U.S., call first. to you. 1-800-521-7300. In Canada, contact STEP THREE — U.S. Owners: You may contact the BBB Auto Line General Motors of Canada Both General Motors and your Program using the toll-free Customer Care Centre at 1‐ dealer are committed to making telephone number or write them at 800-263-3777 (English) or sure you are completely satisfied the following address: 1-800-263-7854 (French). with the new vehicle. However, BBB Auto Line Program We encourage you to call the if you continue to remain unsatisfied Council of Better Business Bureaus, toll-free number in order to give the after following the procedure Inc. inquiry prompt attention. Have the outlined in Steps One and Two, you 4200 Wilson Boulevard following information available to can file with the Better Business ® Suite 800 give the Customer Assistance Bureau (BBB) Auto Line Program Arlington , VA 22203-1838 representative: to enforce your rights. Telephone: 1-800-955-5100 . Vehicle Identification The BBB Auto Line Program is an www.dr.bbb.org/goauto Number (VIN). This is available out-of-court program administered from the vehicle registration or by the Council of Better Business This program is available in all title, or the plate at the top left of Bureaus to settle automotive 50 states and the District of the instrument panel and visible disputes regarding vehicle repairs or Columbia. Eligibility is limited by through the windshield. the interpretation of the New Vehicle vehicle age, mileage, and other Limited Warranty. Although you may factors. General Motors reserves . Dealership name and location. be required to resort to this informal the right to change eligibility . Vehicle delivery date and dispute resolution program prior to limitations and/or discontinue its present mileage. filing a court action, use of the participation in this program. program is free of charge and your case will generally be heard within Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
Customer Information 13-3
STEP THREE — Canadian For further information concerning Customer Assistance Owners: In the event that you do eligibility in the Canadian Motor not feel your concerns have been Vehicle Arbitration Plan (CAMVAP), Offices addressed after following the call toll-free 1-800-207-0685, or call Buick encourages customers to call procedure outlined in Steps One the General Motors Customer Care the toll-free number for assistance. and Two, General Motors of Canada Centre, 1-800-263-3777 (English), However, if a customer wishes to Limited wants you to be aware of its 1-800-263-7854 (French), write or e-mail Buick, the letter participation in a no-charge or write to: should be addressed to: Mediation/Arbitration program. Mediation/Arbitration Program United States and Puerto Rico General Motors of Canada Limited c/o Customer Care Centre has committed to binding arbitration General Motors of Canada Limited Buick Customer Assistance Center of owner disputes involving Mail Code: CA1-163-005 P.O. Box 33136 factory-related vehicle service 1908 Colonel Sam Drive Detroit, MI 48232-5136 claims. The program provides for Oshawa , Ontario L1H 8P7 www.Buick.com the review of the facts involved by an impartial third party arbiter, and The inquiry should be accompanied 1-800-521-7300 may include an informal hearing by the Vehicle Identification 1-800-832-8425 (For Text before the arbiter. The program is Number (VIN). Telephone devices (TTYs)) designed so that the entire dispute Roadside Assistance: settlement process, from the time 1-800-252-1112 you file your complaint to the final From U.S. Virgin Islands: decision, should be completed in 1-800-496-9994 approximately 70 days. We believe our impartial program offers advantages over courts in most jurisdictions because it is informal, quick, and free of charge. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
13-4 Customer Information
Canada Center. Any TTY user can I (Service History): View communicate with Buick by dialing: General Motors of Canada Limited printable dealer-recorded service 1-800-832-8425. TTY users in Customer Care Centre, Mail Code: records and self-recorded service Canada can dial 1 800 263-3830. CA1-163-005 ‐ ‐ records. 1908 Colonel Sam Drive D Online Owner Center (Preferred Dealer Oshawa, Ontario L1H 8P7 Information): Select a dealer and www.gm.ca Online Owner Experience view locations, maps, phone 1-800-263-3777 (English) (U.S.) my.buick.com numbers, and hours. 1-800-263-7854 (French) The Buick online owner experience J (Warranty Tracking 1-800-263-3830 (For Text allows interaction with Buick and Information): Track the vehicle’s Telephone devices (TTYs)) keeps important vehicle-specific warranty information. Roadside Assistance: information in one place. J (Recall Information): View 1-800-268-6800 active recalls or search by Vehicle Membership Benefits All Overseas Locations Identification Number (VIN). See E (Vehicle Information): Vehicle Identification Number (VIN) Please contact the local General Download owner manuals and view on page 12-1. Motors Business Unit. vehicle-specific how-to videos. H (Other Account Information): Customer Assistance for G (Maintenance Information): View GM Card, SiriusXM Satellite View maintenance schedules, radio, and OnStar account Text Telephone (TTY) required maintenance alerts, and information. Users OnStar onboard vehicle diagnostic F (Live Chat Support): Chat with information. Schedule service To assist customers who are deaf, online help representatives. appointments. hard of hearing, or speech-impaired See my.buick.com to register your and who use Text Telephones vehicle. (TTYs), Buick has TTY equipment available at its Customer Assistance Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (5,1) 7707475) - 2015 - CRC - 10/9/14
Customer Information 13-5
Buick Owner Centre (Canada) GM Mobility General Motors of Canada also has buickowner.ca a Mobility Program. Visit www.gm.ca Reimbursement Program or call 1-800-GM-DRIVE (463-7483) Visit the Buick Owner Centre: for details. TTY users call . Chat live with online help 1-800-263-3830. representatives. . Use the Vehicle Tools section. Roadside Assistance . Access third party enthusiast Program sites and social media networks. For U.S.-purchased vehicles, call . Locate owner resources such as This program is available to 1-800-252-1112; (Text Telephone lease-end, financing, and qualified applicants for cost (TTY): 1-888-889-2438). warranty information. reimbursement of eligible For Canadian-purchased vehicles, aftermarket adaptive equipment . Retrieve your favorite articles, call 1-800-268-6800. required for the vehicle, such as quizzes, tips and multimedia Service is available 24 hours a day, hand controls or a wheelchair/ galleries organized into the 365 days a year. scooter lift for the vehicle. Featured Articles and Auto Care Sections. For more information on the limited Calling for Assistance offer, visit www.gmmobility.com or . Download the owner manual for When calling Roadside Assistance, call the GM Mobility Assistance your vehicle, quickly and easily. have the following information Center at 1-800-323-9935. Text ready: . Find the Buick-recommended Telephone (TTY) users, call maintenance services for your 1-800-833-9935. . Your name, home address, and vehicle. home telephone number. . Telephone number of your location. . Location of the vehicle. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (6,1) 7707475) - 2015 - CRC - 10/9/14
13-6 Customer Information
. Model, year, color, and license driver if they decide the claims are . Flat Tire Change: Service to plate number of the vehicle. made too often, or the same type of change a flat tire with the spare tire. The spare tire, if equipped, . Odometer reading, Vehicle claim is made many times. must be in good condition and Identification Number (VIN), and Services Provided delivery date of the vehicle. properly inflated. It is the owner's . Emergency Fuel Delivery: responsibility for the repair or . Description of the problem. Delivery of enough fuel for the replacement of the tire if it is not Coverage vehicle to get to the nearest covered by the warranty. service station. . Battery Jump Start: Service to Services are provided up to 6 years/ jump start a dead battery. 110 000 km (70,000 mi), whichever . Lock-Out Service: Service to comes first. unlock the vehicle if you are Services Not Included in locked out. A remote unlock may Roadside Assistance In the U.S., anyone driving the be available if you have vehicle is covered. In Canada, a OnStar®. For security reasons, . Impound towing caused by person driving the vehicle without the driver must present violation of any laws. permission from the owner is not identification before this service . Legal fines. covered. is given. . Mounting, dismounting, Roadside Assistance is not a part of . Emergency Tow from a Public the New Vehicle Limited Warranty. or changing of snow tires, Road or Highway: Tow to the chains, or other traction devices. General Motors North America and nearest Buick dealer for Buick reserve the right to make any warranty service, or if the vehicle Service is not provided if a vehicle changes or discontinue the was in a crash and cannot be is in an area that is not accessible Roadside Assistance program at driven. Assistance is not given to the service vehicle or is not a any time without notification. when the vehicle is stuck in regularly traveled or maintained General Motors North America and sand, mud, or snow. public road, which includes ice and Buick reserve the right to limit winter roads. Off-road use is not services or payment to an owner or covered. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (7,1) 7707475) - 2015 - CRC - 10/9/14
Customer Information 13-7
Services Specific to permission to get local safety related. If it is, please call Canadian-Purchased Vehicles emergency road service. You will your dealership, let them know this, receive payment, up to $100, and ask for instructions. . Fuel delivery: Reimbursement after sending the original receipt If your dealer requests you to bring is up to 7 liters. Diesel fuel to Roadside Assistance. delivery may be restricted. the vehicle for service, you are Mechanical failures may be urged to do so as early in the work Propane and other fuels are not covered, however any cost for provided through this service. day as possible to allow for parts and labor for repairs not same-day repair. . Lock-Out Service: Vehicle covered by the warranty are the registration is required. owner responsibility. Courtesy Transportation . Trip Interruption Benefits and Program Assistance: Must be over Scheduling Service 150 kilometers from where your Appointments To enhance your ownership trip was started to qualify. experience, we and our participating When the vehicle requires warranty General Motors of Canada dealers are proud to offer Courtesy service, contact your dealer and Limited requires Transportation, a customer support request an appointment. By pre-authorization, original program for vehicles with the scheduling a service appointment detailed receipts, and a copy of Bumper-to-Bumper (Base Warranty and advising the service consultant the repair orders. Once Coverage period in Canada), of your transportation needs, your authorization has been received, extended powertrain, and/or dealer can help minimize your the Roadside Assistance advisor warranties specific to e-Assist in inconvenience. will help you make arrangements both the U.S. and Canada. and explain how to receive If the vehicle cannot be scheduled Several Courtesy Transportation payment. into the service department options are available to assist in immediately, keep driving it until it . Alternative Service: If reducing inconvenience when can be scheduled for service, assistance cannot be provided warranty repairs are required. unless, of course, the problem is right away, the Roadside Assistance advisor may give Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (8,1) 7707475) - 2015 - CRC - 10/9/14
13-8 Customer Information
Courtesy Transportation is not a by GM for shuttle service. If U.S. It may not be possible to provide a part of the New Vehicle Limited customers arrange their own like vehicle as a courtesy rental. Warranty. A separate booklet transportation, limited entitled “Limited Warranty and reimbursement for reasonable fuel Additional Program Owner Assistance Information” expenses may be available. Claim Information furnished with each new vehicle amounts should reflect actual costs All program options, such as shuttle provides detailed warranty coverage and be supported by original service, may not be available at information. receipts. See your dealer for every dealer. Contact your dealer information. Transportation Options for specific availability. Courtesy Rental Vehicle General Motors reserves the right to Warranty service can generally be unilaterally modify, change, completed while you wait. However, For an overnight warranty repair, the or discontinue Courtesy if you are unable to do so, your dealer may provide an available Transportation at any time and to dealer may offer the following courtesy rental vehicle or provide for resolve all questions of claim transportation options: reimbursement of a rental vehicle. Reimbursement is limited and must eligibility pursuant to the terms and Shuttle Service be supported by original receipts as conditions described herein at its sole discretion. This includes one-way or round-trip well as a signed and completed shuttle service within reasonable rental agreement and meet state/ time and distance parameters of provincial, local, and rental vehicle Collision Damage Repair your dealer's area. provider requirements. If the vehicle is involved in a Requirements vary and may include collision and it is damaged, have the Public Transportation or Fuel minimum age requirements, Reimbursement damage repaired by a qualified insurance coverage, credit card, etc. technician using the proper If overnight warranty repairs are Additional fees such as fuel usage equipment and quality replacement needed, and public transportation is charges, taxes, levies, usage fees, parts. Poorly performed collision used, the expense must be excessive mileage, or rental usage repairs diminish the vehicle resale supported by original receipts and beyond the completion of the repair within the maximum amount allowed are also your responsibility. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (9,1) 7707475) - 2015 - CRC - 10/9/14
Customer Information 13-9
value, and safety performance can these parts is not known. Such parts center that has GM-trained be compromised in subsequent are not covered by the GM New technicians and comparable collisions. Vehicle Limited Warranty, and any equipment. related failures are not covered by Collision Parts that warranty. Insuring the Vehicle Genuine GM Collision parts are new Aftermarket collision parts are also Protect your investment in the GM parts made with the same materials available. These are made by vehicle with comprehensive and and construction methods as the companies other than GM and may collision insurance coverage. There parts with which the vehicle was not have been tested for the vehicle. are significant differences in the originally built. Genuine GM As a result, these parts may fit quality of coverage afforded by Collision parts are the best choice to poorly, exhibit premature durability/ various insurance policy terms. ensure that the vehicle's designed corrosion problems, and may not Many insurance policies provide appearance, durability, and safety perform properly in subsequent reduced protection to the GM are preserved. The use of Genuine collisions. Aftermarket parts are not vehicle by limiting compensation for GM parts can help maintain the GM covered by the GM New Vehicle damage repairs through the use of New Vehicle Limited Warranty. Limited Warranty, and any vehicle aftermarket collision parts. Some Recycled original equipment parts failure related to such parts is not insurance companies will not may also be used for repair. These covered by that warranty. specify aftermarket collision parts. parts are typically removed from When purchasing insurance, we vehicles that were total losses in Repair Facility recommend that you ensure that the prior crashes. In most cases, the GM also recommends that you vehicle will be repaired with GM parts being recycled are from choose a collision repair facility that original equipment collision parts. undamaged sections of the vehicle. meets your needs before you ever If such insurance coverage is not A recycled original equipment GM need collision repairs. Your dealer available from your current part may be an acceptable choice to may have a collision repair center insurance carrier, consider switching maintain the vehicle's originally with GM-trained technicians and to another insurance carrier. designed appearance and safety state‐of‐the‐art equipment, or be performance; however, the history of able to recommend a collision repair Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (10,1) 7707475) - 2015 - CRC - 10/9/14
13-10 Customer Information
If the vehicle is leased, the leasing Gather the following information: Managing the Vehicle Damage company may require you to have . Driver name, address, and Repair Process insurance that ensures repairs with telephone number. Genuine GM Original Equipment In the event that the vehicle requires Manufacturer (OEM) parts or . Driver license number. damage repairs, GM recommends Genuine Manufacturer replacement that you take an active role in its . Owner name, address, and repair. If you have a pre-determined parts. Read the lease carefully, as telephone number. you may be charged at the end of repair facility of choice, take the the lease for poor quality repairs. . Vehicle license plate number. vehicle there, or have it towed there. Specify to the facility that any . Vehicle make, model, and If a Crash Occurs required replacement collision parts model year. be original equipment parts, either If there has been an injury, call . Vehicle Identification new Genuine GM parts or recycled emergency services for help. Do not Number (VIN). original GM parts. Remember, leave the scene of a crash until all recycled parts will not be covered by matters have been taken care of. . Insurance company and policy the GM vehicle warranty. Move the vehicle only if its position number. puts you in danger, or you are . General description of the Insurance pays the bill for the repair, instructed to move it by a police damage to the other vehicle. but you must live with the repair. officer. Depending on your policy limits, Choose a reputable repair facility your insurance company may Give only the necessary information that uses quality replacement parts. initially value the repair using to police and other parties involved See “Collision Parts” earlier in this aftermarket parts. Discuss this with in the crash. section. the repair professional, and insist on For emergency towing see If the airbag has inflated, see What Genuine GM parts. Remember, Roadside Assistance Program on Will You See after an Airbag if the vehicle is leased, you may be page 13-5. Inflates? on page 3-25. obligated to have the vehicle repaired with Genuine GM parts, even if your insurance coverage does not pay the full cost. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (11,1) 7707475) - 2015 - CRC - 10/9/14
Customer Information 13-11
If another party's insurance Each bulletin contains instructions Current and Past Models company is paying for the repairs, to assist in the diagnosis and Technical Service Bulletins and you are not obligated to accept a service of the vehicle. Manuals are available for current repair valuation based on that and past model GM vehicles. insurance company's collision policy Owner Information repair limits, as you have no Owner publications are written ORDER TOLL FREE: contractual limits with that company. specifically for owners and intended 1-800-551-4123 Monday – Friday In such cases, you can have control to provide basic operational 8:00 AM – 6:00 PM Eastern Time of the repair and parts choices as information about the vehicle. The For Credit Card Orders Only long as the cost stays within Owner Manual includes the (VISA-MasterCard-Discover), see reasonable limits. Maintenance Schedule for all Helm, Inc. at: www.helminc.com. models. Or write to: Service Publications In-Portfolio: Includes a Portfolio, Ordering Information Owner Manual, and Warranty Helm, Incorporated Manual. Attention: Customer Service Service Manuals 47911 Halyard Drive RETAIL SELL PRICE: $35.00 – Plymouth, MI 48170 Service Manuals have the diagnosis $40.00 (U.S.) plus handling and and repair information on the shipping fees. Prices are subject to change without engines, transmission, axle, notice and without incurring suspension, brakes, electrical, Without Pouch: Owner Manual only. obligation. Allow ample time for steering, body, etc. RETAIL SELL PRICE: delivery. Service Bulletins $25.00 (U.S.) plus handling and All listed prices are quoted in U.S. shipping fees. funds. Make checks payable in U.S. Service Bulletins give additional funds. technical service information needed to knowledgeably service General Motors cars and trucks. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (12,1) 7707475) - 2015 - CRC - 10/9/14
13-12 Customer Information
Radio Frequency Radio Frequency Reporting Safety Identification (RFID) Statement Defects RFID technology is used in some This vehicle has systems that vehicles for functions such as tire operate on a radio frequency that Reporting Safety Defects pressure monitoring and ignition complies with Part 15/Part 18 of the to the United States system security, as well as in Federal Communications connection with conveniences such Commission (FCC) rules and with Government as Remote Keyless Entry (RKE) Industry Canada Standards If you believe that your vehicle transmitters for remote door locking/ RSS-GEN/210/220/310, ICES‐001. has a defect which could cause unlocking and starting, and Operation is subject to the following a crash or could cause injury or in-vehicle transmitters for garage two conditions: door openers. RFID technology in death, you should immediately GM vehicles does not use or record 1. The device may not cause inform the National Highway personal information or link with any harmful interference. Traffic Safety Administration other GM system containing 2. The device must accept any (NHTSA) in addition to notifying personal information. interference received, including General Motors. interference that may cause If NHTSA receives similar undesired operation of the complaints, it may open an device. investigation, and if it finds that Changes or modifications to any of a safety defect exists in a group these systems by other than an of vehicles, it may order a recall authorized service facility could void and remedy campaign. authorization to use this equipment. However, NHTSA cannot become involved in individual problems between you, your dealer, or General Motors. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (13,1) 7707475) - 2015 - CRC - 10/9/14
Customer Information 13-13
To contact NHTSA, you may call Reporting Safety Defects Reporting Safety Defects the Vehicle Safety Hotline to the Canadian to General Motors toll-free at 1-888-327-4236 (TTY: 1-800-424-9153); go to Government In addition to notifying NHTSA (or http://www.safercar.gov; or If you live in Canada, and you Transport Canada) in a situation like write to: believe that the vehicle has a safety this, please notify General Motors. defect, notify Transport Canada Call 1-800-521-7300, or write: Administrator, NHTSA immediately, and notify General Buick Customer Assistance Center 1200 New Jersey Avenue, S.E. Motors of Canada Limited. Call P.O. Box 33136 Washington, D.C. 20590 Transport Canada at Detroit , MI 48232-5136 You can also obtain other 1-800-333-0510 or write to: In Canada, call 1-800-263-3777 information about motor Transport Canada (English) or 1-800-263-7854 Road Safety Branch vehicle safety from (French), or write: http://www.safercar.gov. 80 rue Noel Gatineau, QC J8Z 0A1 General Motors of Canada Limited Customer Care Centre, Mail Code: CA1-163-005 1908 Colonel Sam Drive Oshawa , Ontario L1H 8P7 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (14,1) 7707475) - 2015 - CRC - 10/9/14
13-14 Customer Information
Vehicle Data Event Data Recorders These data can help provide a better understanding of the Recording and This vehicle is equipped with an circumstances in which crashes and event data recorder (EDR). The injuries occur. NOTE: EDR data are Privacy main purpose of an EDR is to recorded by your vehicle only if a The vehicle has a number of record, in certain crash or near non-trivial crash situation occurs; no computers that record information crash-like situations, such as an air data are recorded by the EDR under about the vehicle’s performance and bag deployment or hitting a road normal driving conditions and no how it is driven. For example, the obstacle, data that will assist in personal data (e.g., name, gender, vehicle uses computer modules to understanding how a vehicle’s age, and crash location) are monitor and control engine and systems performed. The EDR is recorded. However, other parties, transmission performance, to designed to record data related to such as law enforcement, could monitor the conditions for airbag vehicle dynamics and safety combine the EDR data with the type deployment and deploy them in a systems for a short period of time, of personally identifying data crash, and, if equipped, to provide typically 30 seconds or less. The routinely acquired during a crash antilock braking to help the driver EDR in this vehicle is designed to investigation. record such data as: control the vehicle. These modules To read data recorded by an EDR, may store data to help the dealer . How various systems in your special equipment is required, and technician service the vehicle. vehicle were operating; access to the vehicle or the EDR is Some modules may also store data . Whether or not the driver and needed. In addition to the vehicle about how the vehicle is operated, manufacturer, other parties, such as such as rate of fuel consumption or passenger safety belts were buckled/fastened; law enforcement, that have the average speed. These modules may special equipment, can read the . retain personal preferences, such as How far (if at all) the driver was information if they have access to radio presets, seat positions, and depressing the accelerator and/ the vehicle or the EDR. temperature settings. or brake pedal; and, . How fast the vehicle was traveling. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (15,1) 7707475) - 2015 - CRC - 10/9/14
Customer Information 13-15
GM will not access this data or OnStar® Infotainment System share it with others except: with the If the vehicle is equipped with If the vehicle is equipped with a consent of the vehicle owner or, ® if the vehicle is leased, with the OnStar and has an active navigation system as part of the consent of the lessee; in response subscription, additional data may be infotainment system, use of the to an official request by police or collected through the OnStar system may result in the storage of similar government office; as part of system. This includes information destinations, addresses, telephone GM's defense of litigation through about the vehicle’s operation; numbers, and other trip information. the discovery process; or, as collisions involving the vehicle; the See the infotainment manual for required by law. Data that GM use of the vehicle and its features; information on stored data and for collects or receives may also be and, in certain situations, the deletion instructions. used for GM research needs or may location and approximate GPS be made available to others for speed of the vehicle. Refer to the research purposes, where a need is OnStar Terms and Conditions and shown and the data is not tied to a Privacy Statement on the OnStar specific vehicle or vehicle owner. website. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (16,1) 7707475) - 2015 - CRC - 10/9/14
13-16 Customer Information
2 NOTES Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
OnStar 14-1
OnStar Overview existing public emergency service OnStar providers. OnStar may collect information about you and your OnStar Overview vehicle, including location information. See OnStar s Terms OnStar Overview ...... 14-1 ’ and Conditions and Privacy OnStar Services Statement for more details including Emergency ...... 14-2 system limitations at Security ...... 14-3 www.onstar.com (U.S.) or Navigation ...... 14-3 = Voice Command Button www.onstar.ca (Canada). Connections ...... 14-4 Q Blue OnStar Button The OnStar system status light is Vehicle Diagnostics ...... 14-6 next to the OnStar buttons. If the > Emergency Button OnStar Additional Information status light is: This vehicle may be equipped with a OnStar Additional . Solid Green: System is on. Information ...... 14-6 comprehensive, in-vehicle system that can connect to a live OnStar . Flashing Green: On a call. Advisor for Emergency, Security, . Red: Indicates a problem. Navigation, Connection, and Diagnostic Services. OnStar . Off: System is off. Press the blue services may require a paid OnStar button twice to speak subscription. OnStar requires the with an OnStar Advisor. vehicle battery and electrical Press Q or call 1-888-4-ONSTAR system, cellular service, and GPS (1-888-466-7827) to speak to an satellite signals to be available and Advisor. operating. OnStar acts as a link to Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
14-2 OnStar
. Receive On-Demand Press = to: Diagnostics for a check of the OnStar Services . Make a call, end a call, vehicle’s key operating systems. or answer an incoming call. Emergency . Receive Roadside Assistance. . Give OnStar Hands-Free Calling With Automatic Crash Response, . Manage WiFi Settings (if voice commands. the OnStar system can equipped). automatically connect to an OnStar . Give OnStar Turn-by-Turn Navigation voice commands. Press > to get a priority connection Emergency Advisor. The built-in Requires a specific OnStar to an OnStar Emergency Advisor system can automatically connect to subscription plan. available 24/7 to: help in certain crashes. . Obtain the WiFi network name, . Get help for an emergency. Press > to connect to an OnStar or Service Set Identifier or SSID, . Be a Good Samaritan or Emergency Advisor. GPS and passphrase (if equipped). respond to an AMBER Alert. technology is used to identify the vehicle location and can provide Press Q to connect to a live . Get assistance in severe important information to emergency Advisor to: weather or other crisis and personnel. OnStar Emergency evacuation routes. . Verify account information or Advisors are trained to provide update contact information. assistance and link to existing public emergency service providers . Get driving directions. Requires in emergency situations. a specific OnStar subscription plan. With OnStar Crisis Assist, specially trained Crisis Advisors are available 24 hours a day, 7 days a week, to provide a central point of contact, assistance, and information if a crisis occurs. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
OnStar 14-3
Security 4. Follow the voice-guided 2. Say “Repeat.” System responds commands. with the last direction given, then OnStar provides services including responds with “OnStar ready,” Stolen Vehicle Assistance, Remote Using Voice Commands then a tone. Ignition Block, and Roadside During a Planned Route Assistance, if equipped. OnStar can Get My Destination unlock the vehicle doors remotely, Cancel Route 1. Press =. System responds: if equipped with automatic door = 1. Press . System responds: “OnStar ready,” then a tone. locks, and can help police locate the “OnStar ready,” then a tone. Say vehicle if it is stolen. “Cancel route.” System 2. Say “Get my destination.” System responds with the responds: “Do you want to Navigation cancel directions?” address and the distance to the destination, then responds with OnStar navigation requires a 2. Say “Yes.” System responds: “OnStar ready,” then a tone. specific OnStar subscription plan. “OK, request completed, thank Q you, goodbye.” Other Navigation Services Press to receive directions or Available from OnStar have them sent to the vehicle Route Preview navigation screen, if equipped. = OnStar eNav: Subscribers can Destinations can also be forwarded 1. Press . System responds: send destinations from to the vehicle from MapQuest.com. “OnStar ready,” then a tone. MapQuest.com to the vehicle 2. Say “Route preview.” System Turn-by-Turn Navigation or Turn-by-Turn Navigation responds with the next three screen-based navigation system (if equipped). When ready, the 1. Press Q to connect to a live maneuvers. directions will be downloaded to the Advisor. Repeat vehicle. 2. Request directions. 1. Press =. System responds: 3. Directions are downloaded to the “OnStar ready,” then a tone. vehicle. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
14-4 OnStar
Destination Download: Press Q, WiFi Connectivity (If Equipped) pressure (if the vehicle is equipped then request the Advisor to The vehicle has a WiFi hotspot that with the tire pressure monitoring download directions to the provides a high-speed, wireless system); or activate remote horn navigation system in the vehicle (if Internet connection to connect and lights. Also remote start the equipped). After the call ends, press multiple mobile devices (data plan vehicle (if factory equipped) or the “Go” button on the navigation required). unlock the doors from anywhere screen to begin driving directions. with a wireless connection (if 1. To retrieve WiFi hotspot equipped with automatic locks). If directions are downloaded to the information, press = and select With a required specific OnStar navigation system, the route can or say “WiFi settings.” subscription plan, a destination can only be canceled through the be sent to the vehicle. For OnStar navigation system. 2. The WiFi settings will display the RemoteLink information and WiFi network name/SSID, Destinations can also be compatibility, see www.onstar.com passphrase, and level of (U.S.) or www.onstar.ca (Canada). downloaded on the go. For encryption. information about eNav or ® 3. To change the SSID or OnStar RemoteLink Key Fob Destination Download, see Services www.onstar.com (U.S.) or passphrase, press Q or call www.onstar.ca (Canada). 1-888-4-ONSTAR to connect This feature is included for five with an Advisor. years and allows for remote door Connections lock/unlock (if equipped with OnStar RemoteLink® Mobile App automatic locks), remote start (if The required specific Onstar (If Equipped) factory equipped), or activation of subscription plan includes the Download the OnStar RemoteLink horn and lights from anywhere with services that follow to help mobile app to select Apple®, a wireless signal. Download the app customers stay connected. Android™, and BlackBerry® or and start using it any time during the For coverage maps, see Windows 7 or 8 mobile devices. trial period to get started. www.onstar.com (U.S.) or From the mobile device, check the www.onstar.ca (Canada). vehicle’s fuel level, oil life, or tire Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (5,1) 7707475) - 2015 - CRC - 10/9/14
OnStar 14-5
OnStar Hands-Free Calling 3. Say “911” without pausing. 3. Say the entire number without System responds: 911. pausing. System responds: This service allows calls to be made “ ” Please say the name tag. and received from the vehicle. 4. Say “Call.” System responds: “ ” “OK, dialing 911.” 4. Pick a name tag. System To Make a Call responds: “About to store
14-6 OnStar
Vehicle Diagnostics OnStar Additional How OnStar Service Works OnStar Vehicle Diagnostics can Information Automatic Crash Response, perform a vehicle check every Emergency Services, Crisis Assist, month. It will check the engine, Transferring Service Stolen Vehicle Assistance, Vehicle transmission, antilock brakes, and Diagnostics, Remote Door Unlock, other major vehicle systems. It also Press Q to request account transfer Roadside Assistance, Turn-by-Turn checks the tire pressures, if the eligibility information. The Advisor Navigation, and Hands-Free Calling vehicle is equipped with the Tire can assist in canceling or removing are available on most vehicles. Not Pressure Monitoring System. If an account information. all OnStar services are available everywhere or on all vehicles. For On-Demand Diagnostics check is Selling/Transferring the needed, press Q, and an Advisor more information, a full description Vehicle of OnStar services, system can run a check. Call 1-888-4-ONSTAR immediately limitations, and OnStar terms and to terminate your OnStar services if conditions: the vehicle is disposed of, sold, . Call 1-888-4-ONSTAR transferred, or if the lease ends. (1-888-466-7827). Reactivation for Subsequent . See www.onstar.com (U.S.). Owners . See www.onstar.ca (Canada). Press Q and follow the prompts to . Call TTY 1-877-248-2080. speak to an Advisor as soon as possible. The Advisor will update . Press Q to speak with an vehicle records and explain the Advisor. OnStar service options available. OnStar services cannot work unless the vehicle is in a place where OnStar has an agreement with a wireless service provider for service Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (7,1) 7707475) - 2015 - CRC - 10/9/14
OnStar 14-7
in that area. The wireless service Services for People with OnStar Personal Identification provider must also have coverage, Disabilities Number (PIN) network capacity, reception, and technology compatible with OnStar Advisors provide services to help A PIN is needed to access some of services. Service involving location subscribers with physical disabilities the OnStar services, like Remote information about the vehicle cannot and medical conditions. Door Unlock and Stolen Vehicle Assistance. The PIN will need to be work unless GPS signals are Press Q for help with: available, unobstructed, and changed the first time when compatible with the OnStar . Locating a gas station with an speaking with an Advisor. To hardware. OnStar services may not attendant to pump gas. change the OnStar PIN, contact an Q work if the OnStar equipment is not . Finding a hotel, restaurant, etc., OnStar Advisor by pressing or properly installed or it has not been that meets accessibility needs. calling 1-888-4-ONSTAR. properly maintained. If equipment or software is added, connected, . Providing directions to the Warranty or modified, OnStar services may closest hospital or pharmacy in OnStar equipment may be not work. Other problems beyond urgent situations. warranted as part of the vehicle the control of OnStar may prevent TTY Users warranty. service such as hills, tall buildings, tunnels, weather, electrical system OnStar has the ability to Languages design and architecture of the communicate to deaf, The vehicle can be programmed to vehicle, damage to the vehicle in a hard-of-hearing, or speech-impaired respond in multiple languages. customers while in the vehicle. The crash, or wireless phone network Press Q and ask for an Advisor. congestion or jamming. available dealer-installed TTY system can provide in-vehicle Advisors are available in English, See Radio Frequency Statement on access to all of the OnStar services, Spanish, and French. Available page 13-12. except Virtual Advisor and OnStar languages may vary by country. Turn-by-Turn Navigation. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (8,1) 7707475) - 2015 - CRC - 10/9/14
14-8 OnStar
Potential Issues A temporary loss of GPS can cause to function properly. These systems loss of the ability to send a may not operate if the battery is OnStar cannot perform Remote Turn-by-Turn Navigation route. The discharged or disconnected. Door Unlock or Stolen Vehicle Advisor may give a verbal route or Assistance after the vehicle has may ask for a call back after the Add-on Electrical Equipment been off continuously for five days. vehicle is driven into an open area. After five days, OnStar can contact The OnStar system is integrated into the electrical architecture of the Roadside Assistance and a Cellular and GPS Antennas locksmith to help gain access to the vehicle. Do not add any electrical vehicle. Do not place items over or near the equipment. See Add-On Electrical antenna to prevent blocking cellular Equipment on page 9-68. Added Global Positioning and GPS signal reception. Cellular electrical equipment may interfere System (GPS) reception is required for OnStar to with the operation of the OnStar send remote signals to the vehicle. system and cause it to not operate. . Obstruction of the GPS can occur in a large city with tall Unable to Connect to OnStar Privacy buildings; in parking garages; Message The complete OnStar Privacy around airports; in tunnels, Statement may be found at underpasses; or in an area with If there is limited cellular coverage www.onstar.com (U.S.), very dense trees. If GPS signals or the cellular network has reached or www.onstar.ca (Canada). We are not available, the OnStar maximum capacity, this message recommend that you review it. If system should still operate to may come on. Press Q to try the you have any questions, call call OnStar. However, OnStar call again or try again after driving a 1-888-4-ONSTAR (1-888-466-7827) could have difficulty identifying few miles into another cellular area. the exact location. or press Q to speak with an Vehicle and Power Issues Advisor. Users of wireless . In emergency situations, OnStar OnStar services require a vehicle communications are cautioned can use the last stored GPS electrical system, wireless service, that the privacy of any information location to send to emergency and GPS satellite technologies to be sent via wireless cellular responders. available and operating for features communications cannot be assured. Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (9,1) 7707475) - 2015 - CRC - 10/9/14
OnStar 14-9
Third parties may unlawfully hereby granted, provided that the or other dealings in this Software intercept or access transmissions above copyright notice and this without prior written authorization of and private communications without permission notice appear in all the copyright holder. consent. copies. unzip: THE SOFTWARE IS PROVIDED OnStar - software This is version 2005-Feb-10 of the acknowledgements “AS IS,” WITHOUT WARRANTY OF ANY KIND, EXPRESS OR Info-ZIP copyright and license. The Certain OnStar components include IMPLIED, INCLUDING BUT NOT definitive version of this document libcurl and unzip software and other LIMITED TO THE WARRANTIES should be available at ftp:// third party software. Below are the OF MERCHANTABILITY, FITNESS ftp.info-zip.org/pub/infozip/ notices and licenses associated with FOR A PARTICULAR PURPOSE license.html indefinitely. libcurl and unzip and for other third AND NONINFRINGEMENT OF Copyright (c) 1990-2005 Info-ZIP. All party software please see http:// THIRD PARTY RIGHTS. IN NO rights reserved. www.lg.com/global/support/ EVENT SHALL THE AUTHORS OR For the purposes of this copyright opensource/index and https:// COPYRIGHT HOLDERS BE www.onstar.com/web/portal/ and license, “Info-ZIP” is defined as LIABLE FOR ANY CLAIM, the following set of individuals: getdocuments DAMAGES OR OTHER LIABILITY, Mark Adler, John Bush, Karl Davis, libcurl: WHETHER IN AN ACTION OF CONTRACT, TORT OR Harald Denker, Jean-Michel Dubois, COPYRIGHT AND PERMISSION OTHERWISE, ARISING FROM, Jean-loup Gailly, Hunter Goatley, Ed NOTICE OUT OF OR IN CONNECTION Gordon, Ian Gorman, Chris Copyright (c) 1996 - 2010, Daniel WITH THE SOFTWARE OR THE Herborth, Dirk Haase, Greg Hartwig, Stenberg,
14-10 OnStar
Kai Uwe Rommel, Steve Salisbury, this list of conditions in thereof, including, but not limited Dave Smith, Steven M. Schweda, documentation and/or other to, different capitalizations), Christian Spieler, Cosmin Truta, materials provided with the “Pocket UnZip,”“WiZ” or Antoine Verheijen, Paul von Behren, distribution. The sole exception “MacZip” without the explicit Rich Wales, Mike White. to this condition is redistribution permission of Info-ZIP. Such of a standard UnZipSFX binary altered versions are further This software is provided “as is,” without warranty of any kind, (including SFXWiz) as part of a prohibited from express or implied. In no event shall self-extracting archive; that is misrepresentative use of the Info-ZIP or its contributors be held permitted without inclusion of Zip-Bugs or Info-ZIP e-mail liable for any direct, indirect, this license, as long as the addresses or of the incidental, special or consequential normal SFX banner has not Info-ZIP URL(s). damages arising out of the use of or been removed from the binary or 4. Info-ZIP retains the right to use disabled. inability to use this software. the names “Info-ZIP,”“Zip,” Permission is granted to anyone to 3. Altered versions–including, but “UnZip,”“UnZipSFX,”“WiZ,” use this software for any purpose, not limited to, ports to new “Pocket UnZip,”“Pocket Zip,” including commercial applications, operating systems, existing ports and “MacZip” for its own source and to alter it and redistribute it with new graphical interfaces, and binary releases. freely, subject to the following and dynamic, shared, or static restrictions: library versions–must be plainly marked as such and must not be 1. Redistributions of source code misrepresented as being the must retain the above copyright original source. Such altered notice, definition, disclaimer, and versions also must not be this list of conditions. misrepresented as being 2. Redistributions in binary form Info-ZIP releases–including, but (compiled executables) must not limited to, labeling of the reproduce the above copyright altered versions with the names notice, definition, disclaimer, and “Info-ZIP” (or any variation Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (1,1) 7707475) - 2015 - CRC - 10/9/14
INDEX i-1
A Airbag System All-Season Tires ...... 10-43 Check ...... 3-32 All-Wheel Drive ...... 9-30, 10-28 Accessories and How Does an Airbag Antilock Brake Modifications ...... 10-3 Restrain? ...... 3-24 System (ABS) ...... 9-30 Accessory Power ...... 9-23 Passenger Sensing Warning Light ...... 5-20 Active Emergency System ...... 3-26 Appearance Care Braking System ...... 1-17, 9-53 What Makes an Airbag Exterior ...... 10-85 Adaptive Cruise Control ...... 9-39 Inflate? ...... 3-24 Interior ...... 10-89 Adaptive Forward What Will You See after an Armrest Lighting (AFL) ...... 6-3 Airbag Inflates? ...... 3-25 Rear Seat ...... 3-12 Adaptive Forward Lighting When Should an Airbag Assistance Program, (AFL) Light ...... 5-25 Inflate? ...... 3-23 Roadside ...... 13-5 Add-On Electrical Where Are the Airbags? ...... 3-22 Assistance Systems for Equipment ...... 9-68 Airbags Driving ...... 9-50 Additional Information ® Adding Equipment to the Assistance Systems for OnStar ...... 14-6 Vehicle ...... 3-31 Parking and Backing ...... 9-48 Additional Maintenance Passenger Status Indicator . . .5-15 Automatic and Care ...... 11-8 Readiness Light ...... 5-14 Door Locks ...... 2-12 Adjustments Servicing Airbag-Equipped Headlamp System ...... 6-3 Lumbar, Front Seats ...... 3-5 Vehicles ...... 3-31 Transmission ...... 9-27 Air Cleaner/Filter, Engine . . . . . 10-15 System Check ...... 3-20 Transmission Fluid ...... 10-15 Air Filter, Passenger Alarm Automatic Transmission Compartment ...... 8-6 Vehicle Security ...... 2-15 Manual Mode ...... 9-29 Air Intake ...... 8-6 Alert Shift Lock Control Air Vents ...... 8-6 Lane Change ...... 9-55 Function Check ...... 10-29 Side Blind Zone (SBZA) ...... 9-54 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (2,1) 7707475) - 2015 - CRC - 10/9/14
i-2 INDEX
B Bulb Replacement (cont'd) Cautions, Danger, and Headlamps, Front Turn Warnings ...... iv Battery ...... 10-27 Signal, and Parking Center Console Storage ...... 4-3 Jump Starting ...... 10-78, 10-79 Lamps ...... 10-32 Chains, Tire ...... 10-63 Load Management ...... 6-7 High Intensity Discharge Charging System Light ...... 5-16 Power Protection ...... 6-8 (HID) Lighting ...... 10-31 Check Voltage and Charging License Plate Lamps ...... 10-33 Engine Light ...... 5-16 Messages ...... 5-35 Taillamps, Turn Signal, Ignition Blade Replacement, Wiper . . . 10-30 Stoplamps, and Transmission Lock ...... 10-29 Brake Back-up Lamps ...... 10-33 Child Restraints System Warning Light ...... 5-19 Buying New Tires ...... 10-58 Infants and Young Brakes ...... 10-25 Children ...... 3-35 Antilock ...... 9-30 Lower Anchors and Assist ...... 9-33 C Tethers for Children ...... 3-41 Fluid ...... 10-26 Calibration ...... 5-4 Older Children ...... 3-33 Parking ...... 9-31 California Securing ...... 3-49, 3-51 System Messages ...... 5-36 Fuel Requirements ...... 9-59 Systems ...... 3-38 Braking ...... 9-3 Perchlorate Materials Circuit Breakers ...... 10-35 Braking System Requirements ...... 10-3 Cleaning Active Emergency ...... 1-17 Warning ...... 10-3 Exterior Care ...... 10-85 Break-In, New Vehicle ...... 9-14 Canadian Vehicle Owners ...... iii Interior Care ...... 10-89 Bulb Replacement ...... 10-34 Capacities and Climate Control Systems Halogen Bulbs ...... 10-31 Specifications ...... 12-2 Dual Automatic ...... 8-1 Headlamp Aiming ...... 10-31 Carbon Monoxide Clock ...... 5-4 Headlamps ...... 10-31 Engine Exhaust ...... 9-26 Trunk ...... 2-13 Cluster, Instrument ...... 5-8 Winter Driving ...... 9-8 Collision Damage Repair ...... 13-8 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (3,1) 7707475) - 2015 - CRC - 10/9/14
INDEX i-3
Compact Spare Tire ...... 10-77 Cruise Control ...... 9-37 Dome Lamps ...... 6-5 Compartments Light ...... 5-25 Door Storage ...... 4-1 Messages ...... 5-36 Ajar Light ...... 5-26 Compass ...... 5-4 Cruise Control, Active ...... 9-39 Ajar Messages ...... 5-37 Messages ...... 5-36 Cupholders ...... 4-1 Delayed Locking ...... 2-12 Compressor Kit, Tire Customer Assistance ...... 13-4 Locks ...... 2-11 Sealant ...... 10-65 Offices ...... 13-3 Power Locks ...... 2-11 Connections Text Telephone (TTY) Drive Belt Routing, Engine . . . . . 12-4 OnStar® ...... 14-4 Users ...... 13-4 Drive Systems Control Customer Information All-Wheel Drive ...... 9-30, 10-28 Traction and Electronic Service Publications Driver Assistance Systems . . . . 9-47 Stability ...... 9-34 Ordering Information ...... 13-11 Driver Information Control of a Vehicle ...... 9-3 Customer Satisfaction Center (DIC) ...... 5-28 Convenience Net ...... 4-3 Procedure ...... 13-1 Driving Convex Mirrors ...... 2-18 Assistance Systems ...... 9-50 Coolant D Characteristics and Engine ...... 10-19 Damage Repair, Collision ...... 13-8 Towing Tips ...... 9-63 Engine Temperature Danger, Warnings, and Defensive ...... 9-3 Gauge ...... 5-13 Cautions ...... iv Drunk ...... 9-3 Engine Temperature Data Recorders, Event ...... 13-14 For Better Fuel Economy . . . . .1-23 Warning Light ...... 5-22 Daytime Running Hill and Mountain Roads ...... 9-7 Cooling System ...... 10-17 Lamps (DRL) ...... 6-2 If the Vehicle is Stuck ...... 9-9 Engine Messages ...... 5-38 Defensive Driving ...... 9-3 Loss of Control ...... 9-6 Courtesy Transportation Delayed Locking ...... 2-12 Off-Road Recovery ...... 9-5 Program ...... 13-7 Differential, Limited-Slip ...... 9-36 Distracted Driving ...... 9-2 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (4,1) 7707475) - 2015 - CRC - 10/9/14
i-4 INDEX
Driving (cont'd) Engine Event Data Recorders ...... 13-14 Vehicle Load Limits ...... 9-10 Air Cleaner/Filter ...... 10-15 Exit Lighting ...... 6-7 Wet Roads ...... 9-6 Check and Service Engine Extender, Safety Belt ...... 3-19 Winter ...... 9-8 Soon Light ...... 5-16 Exterior Lamp Controls ...... 6-1 Dual Automatic Climate Compartment Overview ...... 10-6 Exterior Lamps Off Reminder . . . 6-2 Control System ...... 8-1 Coolant ...... 10-19 Coolant Temperature F E Gauge ...... 5-13 Features E85 or FlexFuel ...... 9-60 Coolant Temperature Memory ...... 1-8 Electric Parking Brake Light . . . 5-20 Warning Light ...... 5-22 Filter, Electrical Equipment, Cooling System ...... 10-17 Engine Air Cleaner ...... 10-15 Add-On ...... 9-68 Cooling System Messages . . .5-38 Flash-to-Pass ...... 6-2 Electrical System Drive Belt Routing ...... 12-4 Flashers, Hazard Warning ...... 6-4 Engine Compartment Exhaust ...... 9-26 Flat Tire ...... 10-63 Fuse Block ...... 10-36 Heater ...... 9-22 Changing ...... 10-72 Fuses and Circuit Oil Life System ...... 10-13 FlexFuel Breakers ...... 10-35 Oil Messages ...... 5-38 E85 ...... 9-60 Instrument Panel Fuse Overheated Protection Floor Mats ...... 10-93 Block ...... 10-40 Operating Mode ...... 10-23 Fluid Overload ...... 10-35 Overheating ...... 10-21 Automatic Transmission . . . . 10-15 Emergency Power Messages ...... 5-39 Brakes ...... 10-26 OnStar® ...... 14-2 Pressure Light ...... 5-23 Power Steering ...... 10-23 Energy Information ...... 5-27 Running While Parked ...... 9-26 Washer ...... 10-24 Starting ...... 9-18 Fog Lamps ...... 6-4 Entry Lighting ...... 6-6 Folding Mirrors ...... 2-19 Equipment, Towing ...... 9-67 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (5,1) 7707475) - 2015 - CRC - 10/9/14
INDEX i-5
Forward Collision Alert Fuses General Information (FCA) System ...... 9-50 Engine Compartment Service and Maintenance . . . . . 11-1 Frequency Statement Fuse Block ...... 10-36 Towing ...... 9-63 Radio ...... 13-12 Fuses and Circuit Vehicle Care ...... 10-2 Front Fog Lamp Breakers ...... 10-35 Glove Box ...... 4-1 Light ...... 5-25 Instrument Panel Fuse GM Mobility Reimbursement Front Seats Block ...... 10-40 Program ...... 13-5 Adjustment ...... 3-4 Heated and Ventilated ...... 3-9 G H Front Storage ...... 4-2 Garage Door Opener ...... 5-51 Halogen Bulbs ...... 10-31 Fuel ...... 9-58 Programming ...... 5-51 Hazard Warning Flashers ...... 6-4 Additives ...... 9-60 Gauges Head Restraints ...... 3-2 Economy Driving ...... 1-23 Engine Coolant Head-up Display ...... 5-31 Filling a Portable Fuel Temperature ...... 5-13 Headlamps Container ...... 9-62 Fuel ...... 5-12 Adaptive Forward Filling the Tank ...... 9-61 Odometer ...... 5-11 Lighting (AFL) ...... 6-3 Foreign Countries ...... 9-60 Speedometer ...... 5-11 Aiming ...... 10-31 Gauge ...... 5-12 Tachometer ...... 5-11 Automatic ...... 6-3 Low Fuel Warning Light ...... 5-24 Warning Lights and Bulb Replacement ...... 10-31 Requirements, California . . . . .9-59 Indicators ...... 5-7 Daytime Running System Messages ...... 5-39 Lamps (DRL) ...... 6-2 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (6,1) 7707475) - 2015 - CRC - 10/9/14
i-6 INDEX
Headlamps (cont'd) I K Flash-to-Pass ...... 6-2 Ignition Positions ...... 9-15, 9-16 Key and Lock Messages ...... 5-39 High Intensity Discharge Ignition Transmission Lock Keyless Entry (HID) Lighting ...... 10-31 Check ...... 10-29 Remote (RKE) System ...... 2-3 High-Beam On Light ...... 5-25 Immobilizer ...... 2-16 Keys ...... 2-1 High/Low Beam Changer ...... 6-2 Indicator Lamps On Reminder ...... 5-25 Vehicle Ahead ...... 5-21 Heated L Infants and Young Children, Steering Wheel ...... 5-3 Labeling, Tire Sidewall ...... 10-44 Restraints ...... 3-35 Heated and Ventilated Front Lamps Information Seats ...... 3-9 Daytime Running (DRL) ...... 6-2 Energy ...... 5-27 Heated Mirrors ...... 2-19 Dome ...... 6-5 Infotainment ...... 7-1 Heater Exterior Controls ...... 6-1 Infotainment System ...... 13-15 Engine ...... 9-22 Exterior Lamps Off Instrument Cluster ...... 5-8 High Voltage Devices and Reminder ...... 6-2 Interior Rearview Mirrors ...... 2-19 Wiring ...... 10-34 Fog ...... 6-4 Introduction ...... iii High-Beam On Light ...... 5-25 Headlamps, Front Turn High-Speed Operation ...... 10-51 Signal, and Parking Hill and Mountain Roads ...... 9-7 J Lamps ...... 10-32 Hill Start Assist (HSA) ...... 9-33 Jump Starting ...... 10-78, 10-79 License Plate ...... 10-33 Hood ...... 10-5 Malfunction Indicator ...... 5-16 Horn ...... 5-3 Messages ...... 5-40 How to Wear Safety Belts Properly ...... 3-14 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (7,1) 7707475) - 2015 - CRC - 10/9/14
INDEX i-7
Lamps (cont'd) Lights Lights (cont'd) On Reminder ...... 5-25 Airbag Readiness ...... 5-14 Tire Pressure ...... 5-23 Reading ...... 6-6 Antilock Brake System Traction Control System Sun Visor ...... 6-6 (ABS) Warning ...... 5-20 (TCS)/StabiliTrak® ...... 5-22 Lane Change Alert ...... 9-55 Brake System Warning ...... 5-19 Traction Off ...... 5-21 Lane Departure Charging System ...... 5-16 Limited-Slip Differential ...... 9-36 Warning (LDW) ...... 9-57 Cruise Control ...... 5-25 Locks Lane Departure Warning Door Ajar ...... 5-26 Automatic Door ...... 2-12 Light ...... 5-21 Electric Parking Brake ...... 5-20 Delayed Locking ...... 2-12 Lap-Shoulder Belt ...... 3-15 Engine Coolant Door ...... 2-11 LATCH System Temperature Warning ...... 5-22 Lockout Protection ...... 2-12 Replacing Parts after a Engine Oil Pressure ...... 5-23 Power Door ...... 2-11 Crash ...... 3-48 Flash-to-Pass ...... 6-2 Safety ...... 2-12 LATCH, Lower Anchors and Front Fog Lamp ...... 5-25 Loss of Control ...... 9-6 Tethers for Children ...... 3-41 High-Beam On ...... 5-25 Low Fuel Warning Light ...... 5-24 LED Lighting ...... 10-31 High/Low Beam Changer ...... 6-2 Lower Anchors and Tethers Light Lane Departure Warning ...... 5-21 for Children (LATCH Adaptive Forward Lighting Low Fuel Warning ...... 5-24 System) ...... 3-41 (AFL) Light ...... 5-25 Safety Belt Reminders ...... 5-14 Lumbar Adjustment ...... 3-5 Lighting Security ...... 5-24 Front Seats ...... 3-5 Adaptive Forward ...... 6-3 Service Electric Parking Entry ...... 6-6 Brake ...... 5-20 Exit ...... 6-7 StabiliTrak® OFF ...... 5-22 Illumination Control ...... 6-5 LED ...... 10-31 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (8,1) 7707475) - 2015 - CRC - 10/9/14
i-8 INDEX
M Messages (cont'd) N Lamp ...... 5-40 Maintenance Navigation Object Detection System . . . . .5-40 Records ...... 11-14 OnStar® ...... 14-3 Ride Control System ...... 5-42 Maintenance and Care Net, Convenience ...... 4-3 Security ...... 5-43 Additional ...... 11-8 New Vehicle Break-In ...... 9-14 Service Vehicle ...... 5-43 Maintenance Schedule ...... 11-2 Starting the Vehicle ...... 5-43 Recommended Fluids Tire ...... 5-43 O and Lubricants ...... 11-12 Transmission ...... 5-44 Object Detection System Malfunction Indicator Lamp . . . . 5-16 Vehicle ...... 5-35 Messages ...... 5-40 Manual Mode ...... 9-29 Vehicle Speed ...... 5-44 Odometer ...... 5-11 Memory Features ...... 1-8 Window ...... 5-44 Off-Road Memory Seats ...... 3-7 Mirrors Recovery ...... 9-5 Messages Automatic Dimming Oil Airbag System ...... 5-42 Rearview ...... 2-20 Engine ...... 10-11 Battery Voltage and Convex ...... 2-18 Engine Oil Life System . . . . . 10-13 Charging ...... 5-35 Folding ...... 2-19 Messages ...... 5-38 Brake System ...... 5-36 Heated ...... 2-19 Pressure Light ...... 5-23 Compass ...... 5-36 Manual Rearview ...... 2-20 Older Children, Restraints . . . . . 3-33 Door Ajar ...... 5-37 Power ...... 2-18 Online Owner Center ...... 13-4 Engine Cooling System ...... 5-38 Tilt in Reverse ...... 2-19 OnStar ...... 13-15 Engine Oil ...... 5-38 ® Mirrors, Interior Rearview ...... 2-19 OnStar Engine Power ...... 5-39 Monitor System, Tire System, In Brief ...... 1-23 Fuel System ...... 5-39 Pressure ...... 10-51 Key and Lock ...... 5-39 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (9,1) 7707475) - 2015 - CRC - 10/9/14
INDEX i-9
OnStar® Additional P Power Information ...... 14-6 Door Locks ...... 2-11 Park OnStar® Connections ...... 14-4 Flows ...... 5-26 Shifting Into ...... 9-24 OnStar® Emergency ...... 14-2 Mirrors ...... 2-18 Shifting Out of ...... 9-25 OnStar® Navigation ...... 14-3 Outlets ...... 5-5 Parking OnStar® Overview ...... 14-1 Protection, Battery ...... 6-8 Brake ...... 9-31 OnStar® Security ...... 14-3 Retained Accessory (RAP) . . .9-23 Brake and P (Park) OnStar® Vehicle Seat Adjustment ...... 3-5 Mechanism Check ...... 10-29 Diagnostics ...... 14-6 Steering Fluid ...... 10-23 Over Things That Burn ...... 9-25 Operating Mode Windows ...... 2-20 Parking or Backing Overheated Engine Pregnancy, Using Safety Assistance Systems ...... 9-48 Protection ...... 10-23 Belts ...... 3-18 Passenger Airbag Status Ordering Privacy Indicator ...... 5-15 Service Publications ...... 13-11 Vehicle Data Recording . . . . . 13-14 Passenger Compartment Air Outlets Program Filter ...... 8-6 Power ...... 5-5 Courtesy Transportation ...... 13-7 Passenger Sensing System . . . 3-26 Overheated Engine Proposition 65 Warning, Perchlorate Materials Protection California ...... 10-3 Requirements, California . . . . . 10-3 Operating Mode ...... 10-23 Personalization Overheating, Engine ...... 10-21 Vehicle ...... 5-45 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (10,1) 7707475) - 2015 - CRC - 10/9/14
i-10 INDEX
R Replacement Parts Roof Airbags ...... 3-32 Sunroof ...... 2-23 Radio Frequency Maintenance ...... 11-13 Rotation, Tires ...... 10-56 Identification (RFID) ...... 13-12 Replacing Airbag System ...... 3-32 Routing, Engine Drive Belt . . . . . 12-4 Radio Frequency Replacing LATCH System Running the Vehicle While Statement ...... 13-12 Parts after a Crash ...... 3-48 Parked ...... 9-26 Reading Lamps ...... 6-6 Replacing Safety Belt Rear Seat Armrest ...... 3-12 System Parts after a Crash . . . 3-20 Rear Seats ...... 3-11 S Reporting Safety Defects Rear Window Sunshade ...... 2-22 Safety Belts ...... 3-12 Canadian Government ...... 13-13 Rearview Mirrors ...... 2-20 Care ...... 3-19 General Motors ...... 13-13 Automatic Dimming ...... 2-20 Extender ...... 3-19 U.S. Government ...... 13-12 Reclining Seatbacks ...... 3-6 How to Wear Safety Belts Restraints Recommended Fluids and Properly ...... 3-14 Where to Put ...... 3-39 Lubricants ...... 11-12 Lap-Shoulder Belt ...... 3-15 Retained Accessory Records Reminders ...... 5-14 Power (RAP) ...... 9-23 Maintenance ...... 11-14 Replacing after a Crash ...... 3-20 Reverse Tilt Mirrors ...... 2-19 Recreational Vehicle Use During Pregnancy ...... 3-18 Ride Control Systems Towing ...... 10-83 Safety Defects Reporting Enhanced Traction Reimbursement Program, Canadian Government ...... 13-13 System (ETS) ...... 9-36 GM Mobility ...... 13-5 General Motors ...... 13-13 Messages ...... 5-42 Remote Keyless Entry U.S. Government ...... 13-12 Selective ...... 9-36 (RKE) System ...... 2-2, 2-3 Safety Locks ...... 2-12 Roads Remote Vehicle Start ...... 2-9 Safety System Check ...... 3-19 Driving, Wet ...... 9-6 Replacement Bulbs ...... 10-34 Scheduling Appointments ...... 13-7 Roadside Assistance Sealant Kit, Tire ...... 10-65 Program ...... 13-5 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (11,1) 7707475) - 2015 - CRC - 10/9/14
INDEX i-11
Seats Service (cont'd) Spare Tire Adjustment, Front ...... 3-4 Maintenance, General Compact ...... 10-77 Head Restraints ...... 3-2 Information ...... 11-1 Special Application Services . . . 11-8 Heated and Ventilated Front . . . 3-9 Parts Identification Label . . . . .12-1 Specifications and Lumbar Adjustment, Front . . . . . 3-5 Publications Ordering Capacities ...... 12-2 Memory ...... 3-7 Information ...... 13-11 Speedometer ...... 5-11 Power Adjustment, Front ...... 3-5 Scheduling Appointments . . . . .13-7 StabiliTrak Rear ...... 3-11 Vehicle Messages ...... 5-43 OFF Light ...... 5-22 Reclining Seatbacks ...... 3-6 Service Electric Parking Start Assist, Hills ...... 9-33 Securing Child Brake Light ...... 5-20 Start Vehicle, Remote ...... 2-9 Restraints ...... 3-49, 3-51 Services Starter Switch Check ...... 10-28 Security Special Application ...... 11-8 Starting the Engine ...... 9-18 Light ...... 5-24 Servicing the Airbag ...... 3-31 Starting the Vehicle Messages ...... 5-43 Shift Lock Control Function Messages ...... 5-43 OnStar® ...... 14-3 Check, Automatic Steering ...... 9-4 Vehicle ...... 2-15 Transmission ...... 10-29 Fluid, Power ...... 10-23 Vehicle Alarm ...... 2-15 Shifting Heated Wheel ...... 5-3 Selective Ride Control ...... 9-36 Into Park ...... 9-24 Wheel Adjustment ...... 5-2 Service ...... 8-7 Out of Park ...... 9-25 Wheel Controls ...... 5-2 Accessories and Side Blind Zone Stoplamps and Back-up Lamps Modifications ...... 10-3 Alert (SBZA) ...... 9-54 Bulb Replacement ...... 10-33 Doing Your Own Work ...... 10-4 Signals, Turn and Engine Soon Light ...... 5-16 Lane-Change ...... 6-4 Maintenance Records ...... 11-14 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (12,1) 7707475) - 2015 - CRC - 10/9/14
i-12 INDEX
Storage Areas T Tires (cont'd) Center Console ...... 4-3 Sealant and Tachometer ...... 5-11 Convenience Net ...... 4-3 Compressor Kit ...... 10-65 Taillamps Front ...... 4-2 Sealant and Compressor Bulb Replacement ...... 10-33 Glove Box ...... 4-1 Kit, Storing ...... 10-72 Text Telephone (TTY) Users . . . 13-4 Sunglasses ...... 4-3 Sidewall Labeling ...... 10-44 Theft-Deterrent Storage Compartments ...... 4-1 Terminology and Systems ...... 2-16, 2-17 Storing the Tire Sealant Definitions ...... 10-47 Immobilizer ...... 2-16 and Compressor Kit ...... 10-72 Uniform Tire Quality Time ...... 5-4 Stuck Vehicle ...... 9-9 Grading ...... 10-60 Tires ...... 10-42 Summer Tires ...... 10-43 Wheel Alignment and Tire All-Season ...... 10-43 Sun Visor Lamps ...... 6-6 Balance ...... 10-62 Buying New Tires ...... 10-58 Sun Visors ...... 2-22 Wheel Replacement ...... 10-62 Chains ...... 10-63 Sunglass Storage ...... 4-3 When It Is Time for New Changing ...... 10-72 Sunroof ...... 2-23 Tires ...... 10-57 Compact Spare ...... 10-77 Sunshade Winter ...... 10-43 Designations ...... 10-46 Rear Window ...... 2-22 Towing Different Size ...... 10-60 Symbols ...... iv Driving Characteristics ...... 9-63 If a Tire Goes Flat ...... 10-63 System Equipment ...... 9-67 Inflation Monitor System . . . . 10-52 General Information ...... 9-63 Active Emergency Braking . . . .9-53 Inspection ...... 10-56 Forward Collision Recreational Vehicle ...... 10-83 Messages ...... 5-43 Alert (FCA) ...... 9-50 Trailer ...... 9-66, 9-67 Pressure ...... 10-51 Infotainment ...... 7-1, 13-15 Vehicle ...... 10-82 Pressure Light ...... 5-23 Systems Pressure Monitor System . . . 10-51 Driver Assistance ...... 9-47 Rotation ...... 10-56 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (13,1) 7707475) - 2015 - CRC - 10/9/14
INDEX i-13
Traction U Vehicle Care Control System (TCS)/ Storing the Tire Sealant Uniform Tire Quality StabiliTrak® Light ...... 5-22 and Compressor Kit ...... 10-72 Grading ...... 10-60 Limited-Slip Differential ...... 9-36 Tire Pressure ...... 10-50 Universal Remote System . . . . . 5-51 Off Light ...... 5-21 Vehicle Data Recording Operation ...... 5-53 Selective Ride Control ...... 9-36 and Privacy ...... 13-14 Programming ...... 5-51 Traction Control/Electronic Vehicle Diagnostics Using This Manual ...... iii Stability Control ...... 9-34 OnStar® ...... 14-6 Trailer Ventilation, Air ...... 8-6 Towing ...... 9-66, 9-67 V Visors ...... 2-22 Transmission Vehicle Voltage Devices and Automatic ...... 9-27 Alarm System ...... 2-15 Wiring ...... 10-34 Fluid, Automatic ...... 10-15 Canadian Owners ...... iii Messages ...... 5-44 Control ...... 9-3 Identification W Transportation Program, Warning Number (VIN) ...... 12-1 Courtesy ...... 13-7 Brake System Light ...... 5-19 Load Limits ...... 9-10 Trunk ...... 2-13 Lane Departure (LDW) ...... 9-57 Messages ...... 5-35 Turn and Lane-Change Warning Lights, Gauges, and Personalization ...... 5-45 Signals ...... 6-4 Indicators ...... 5-7 Remote Start ...... 2-9 Turn Signal Warnings ...... iv Security ...... 2-15 Bulb Replacement ...... 10-33 Cautions and Danger ...... iv Speed Messages ...... 5-44 Hazard Flashers ...... 6-4 Towing ...... 10-82 Washer Fluid ...... 10-24 Vehicle Ahead Indicator ...... 5-21 Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada/Mexico- Black plate (14,1) 7707475) - 2015 - CRC - 10/9/14
i-14 INDEX
Wheels Alignment and Tire Balance ...... 10-62 Different Size ...... 10-60 Replacement ...... 10-62 When It Is Time for New Tires ...... 10-57 Where to Put the Restraint . . . . 3-39 Windows ...... 2-20 Messages ...... 5-44 Power ...... 2-20 Windshield Replacement ...... 10-30 Wiper/Washer ...... 5-3 Winter Driving ...... 9-8 Winter Tires ...... 10-43 Wiper Blade Replacement . . . . 10-30 Wiring, High Voltage Devices ...... 10-34