2005 Cadillac STS STANDARD EQUIPMENT

S = Standard Equipment A = Available -- (dashes) = Not Available D = ADI Available = Included in Equipment Group = Included in Equipment Group but upgradeable

Codes listed in the shaded column titled Ref. Only RPO Code are for internal use only and should not be ordered.

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

AY0 Air bags, frontal dual-stage and side-thorax S1 S1 S1 S1 S1 S1 S1 for driver and front passenger, head curtain for front and outboard rear passengers 1 - Head curtain air bags are designed to help reduce the risk of head and neck injuries to front and rear seat occupants on the near side of certain side-impact collisions. Always use safety belts and proper child restraints, even in vehicles equipped with air bags. Children are safer when properly secured in a rear seat, See the Owner's Manual for more safety information.

K14 Air filtration system, outside recirculating air -- S S -- S S S filter

Aluminum Trim Package, premium S S -- S ------aluminum trim, includes center stack, console and IP spear molding

Armrest, center, front S S S S S S S

Armrest, center, rear, includes dual S S S S S S S cupholders

Climate Control, dual-zone, includes S S S S S S S individual climate settings for driver and right front passenger

Console, floor, includes floor shifter, integral S S S S S S S armrest, storage compartment, cupholders and (2) auxiliary power outlets

Cruise control, electronic with set and S S S S S S S resume speed, includes telltale in instrument panel cluster

Decklid, power release S S S S S S S

Defogger, rear-window, electric, includes S S S S S S S front and side window outlets, driver and front passenger

Door locks, power programmable S S S S S S S

Door locks, child security, rear S S S S S S S

Driver Information Center, includes display S S S S S S S in gauge cluster including tire pressure, 6 language capability (English, French, German, Italian, Japanese and Spanish)

Floormats, carpeted, front and rear S S S S S S S

Glovebox, lockable, passenger side, S S S S S S S illuminated

Published January 13, 2006 Page 1 2005 Cadillac STS STANDARD EQUIPMENT

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

Ignition, keyless, engaged with push button S S S S S S S start

U30 Instrumentation, analog, includes S S S S S S S speedometer, tachometer, fuel gauge and engine water temperature gauge

AP3 Keyless Access, includes keyless ignition S S S S S S S which is engaged with push button start, and 2 remote transmitters which enable passive entry on both front doors and trunk, and remote start capability

Lighting, illuminated entry and exit, includes S S S S S S S courtesy lamps and entrance lamps in base of door and under IP

Map pockets, front and rear door storage S S S S S S S

DD7 Mirror, inside rearview, electrochromic S1 S1 -- S1 S1 -- -- (light-sensitive auto dimming), includes compass and OnStar controls 1 - Not available in combination with (YQ4) Sound System, ETR AM/FM stereo with in-dash 6-disc CD changer, Bose, DVD-based navigation

UE1 OnStar, 1-year Directions & Connections S1 S1 S1 S1 S1 S1 S1 Service, includes Automatic Notification of Air Bag Deployment, Emergency Services, Roadside Assistance, Stolen-Vehicle Tracking, AccidentAssist, Remote Door Unlock, Remote Diagnostics, Online Concierge, Remote Horn and Lights, Route Support, RideAssist, Information/Convenience Services and available Personal Calling and Virtual Advisor 1 - Visit www.onstar.com for system information and details.

Parking brake release, automatic S S S S S S S

Personalization features, for more S S S S S S S convenient entry/exit

Retained accessory power, radio, power S S S S S S S windows, audio steering wheel controls and sunroof may be used for up to 10 minutes after ignition is turned off and doors remain closed

Safety belts, 3-point, all positions, with S S S S S S S pretensioners and child restraint provisions

AQ9 Seats, front bucket, with articulating head S S S S S S S restraints

IL2 Seat trim, Nuance leather seating surfaces S S S S S --

Published January 13, 2006 Page 2 2005 Cadillac STS STANDARD EQUIPMENT

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

Smart Remote Start S S S S S S S

YQ1 Sound System, ETR AM/FM stereo, Bose, S -- -- S ------with CD player, includes Radio Data System and 8 speakers

Steering column, power tilt and telescopic S S S S S S S

NP5 Steering wheel, leather-wrapped rim S S -- S ------

Steering wheel, mounted controls, includes S S S S S S S controls for sound system, voice recognition and Adaptive Cruise Control (if equipped)

UA6 Theft-deterrent system, PASS-Key III S S S S S S S

Trunk release, power S S S S S S S

Visors, telescoping, illuminated vanity S S S S S S S mirrors, driver and front passenger

Windows, power, includes express up and S S S S S S S down, all 4 windows, with front and rear passenger lockout

Antenna, integral S S S S S S S

Daytime running lamps S S S S S S S

Exhaust outlets, dual chrome-plated tips S S S S S S S

Fog lamps, front, integral in front fascia S S S S S S S

Glass, Solar-Ray dark tinted S S S S S S S

Headlamps, halogen, Tungsten, windshield S S S S S -- -- wiper activated, includes Twilight Sentinel and flash-to-pass feature

DR2 Mirrors, outside rearview, power, heated, S S S S S S S body-color, folding, driver side electrochromic

UD7 Rear Parking Assist, Ultrasonic, includes S S S S S S S rearview LED display and audible warning

Tail lamps, LED illumination S S S S S S S

QKP Tires, P235/50R17, Michelin, S-rated, ------S S -- -- all-season, blackwall

Q11 Tires, P235/50R17 front and P255/45R17 S S S -- -- S -- rear, Michelin, V-rated, all-season, blackwall

Q12 Tires, P235/50R18 front and P255/45R18 -- -- A1 -- -- A1 S rear, Michelin, W-rated, all-season, blackwall 1 - Included and only available with (QF8) Wheels, 18" (45.6 cm x 20.3 cm) cast aluminum, polished, 9-spoke non-faceted.

Q14 Wheels, 2 - 17" x 7.5" (43.2 cm x 19.1 cm) S ------front, 2 - 17" x 8" (43.2 cm x 20.3 cm) rear, cast aluminum, painted, 7-spoke

Published January 13, 2006 Page 3 2005 Cadillac STS STANDARD EQUIPMENT

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

N88 Wheels, 4 - 17" x 7.5" (43.2 cm x 19.1 cm) ------S ------cast aluminum painted

Wipers, intermittent, front, includes washers S -- -- S S -- --

Battery, maintenance free, includes rundown S S S S S S S protection

JL9 Brakes, 4-wheel antilock, 4-wheel disc S S -- S S -- --

Brakes, Panic Assist, senses high impact S S S S S S S braking and assists with braking maneuvers

Driver Shift Control S S S S S S S

LY7 Engine, 3.6L V6 VVT (255 HP [190.2 kW] @ S1 S1 S1 ------6500 rpm, 254 lb.-ft. [342.9 N-m] @ 2800 rpm) 1 - Requires (M82) Transmission, auto, 5-speed, HMD, 5L40-E

LH2 Engine, 4.6L Northstar V8 VVT, SFI (320 HP ------S1 S1 S1 S1 [238.6 kW] @ 6400 rpm, 315 lb.-ft. [425.3 N-m] @ 4400 rpm) 1 - Requires (M22) Transmission, auto 5-speed, HMD, 5L50-E for RWD or (MV3) Transmission, auto, 5-speed, HMD, 5L50-E PTU for AWD

Exhaust, stainless-steel, with dual chrome S S S S S S S tips

JL4 StabiliTrak S S S S S S S

Steering, power, rack-and-pinion, S S S S S S S speed-sensitive

FE1 Suspension, 4-wheel independent S S S S S -- --

Traction control, all-speed, brake and S S S S S S S engine controlled

M22 Transmission, 5-speed automatic, HMD, ------S S S S 5L50-E, electronic, O/D, RWD

M82 Transmission, 5-speed automatic, HMD, S S S ------5L40-E, electronic

Published January 13, 2006 Page 4 2005 Cadillac STS EQUIPMENT GROUPS

S = Standard Equipment A = Available -- (dashes) = Not Available D = ADI Available = Included in Equipment Group = Included in Equipment Group but upgradeable

No deletions allowed to Equipment Groups. Additional options may be added; check ordering information section for compatibility.

Codes listed in the shaded column titled Ref. Only RPO Code are for internal use only and should not be ordered.

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

A45 Memory Package, memory "presets" for 2 -- -- drivers, includes 8-way power driver/passenger seat with easy exit driver seat, outside mirrors, power tilt and telescoping steering wheel with easy exit, and radio and climate control settings

DD8 Mirror, inside rearview, electrochromic -- -- 1 -- -- 1 1 (light-sensitive auto dimming), includes OnStar controls 1 - Included with (YQ4) Sound System, ETR AM/FM stereo with in-dash 6-disc CD changer, Bose, DVD-based navigation

AL2 Seat adjuster, 4-way power lumbar -- --

IL3 Seats, premium Tuscany all-leather seats ------

KA1 Seats, heated, front, driver and passenger ------

KA6 Seats, heated, rear outboard seating ------positions

KB6 Seats, heated/ventilated, front ------

IL2 Seat trim, Nuance leather seating surfaces S S S S S --

YQ2 Sound System, ETR AM/FM stereo, Bose, ------with in-dash 6 disc CD changer, includes Radio Data System and 8 speakers

YQ4 Sound System, ETR AM/FM Studio ------Surround Sound Bose 5.1 with in-dash 6 disc DVD changer, DVD-based Advanced Navigation, includes Radio Data System, seek-and-scan, digital clock, AudioPilot automatic volume compensation, TheftLock, weather band, digital signal processing and 15 speakers, rear passenger A/V jacks

Published January 13, 2006 Page 5 2005 Cadillac STS EQUIPMENT GROUPS

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

U2K Sound system feature, XM Satellite Radio -- A1 2 -- A2 2 2 features 67 channels of 100% commercial-free music included in its over 150 channels of the best in music, news, sports, talk, comedy, XM Instant Traffic and Weather, and more. Digital quality sound with coast-to-coast signal coverage. Three trial months - no obligation. 1 - Included and only available with (PCR) Premium Upgrade Package. Subscription fees apply. Available only in the contiguous U.S. 2 - Subscription fees apply. Available only in the 48 contiguous U.S.

N31 Steering wheel, leather-wrapped with ------wood accents, heated, wood

NR7 Steering wheel, leather-wrapped rim, heated ------

CF5 Sunroof, power, tilt-sliding, electric with -- A -- A express-open, includes sunshade

UJ6 Tire pressure monitor system, air pressure ------sensors in each tire. Pressure display in Driver Information Center

AP9 Trunk Convenience Package -- A1 -- 1 - Included and only available with (PCR) Premium Upgrade Package

UG1 Universal transmitter, HomeLink, includes -- A1 -- garage door opener, 3-channel programmable 1 - Included and only available with (PCR) Premium Upgrade Package

B19 Wood Trim Package, includes real -- A1 ------Eucalyptus wood on center stack, console and IP molding 1 - Included and only available with (PCR) Premium Upgrade Package

B20 Wood Trim Package, includes real ------Eucalyptus wood on steering wheel, shifter knob, center stack and console, IP spear molding and door pulls

TQ5 Headlamps, Intellibeam, automatic low/high ------beam control

TT6 Headlamps, Xenon, high-intensity discharge, ------windshield wiper activated, includes flash-to-pass and headlamp washers

CE4 Headlamp washer system ------1 1 1 - Included with (TT6) Headlamps, Xenon, high-intensity discharge

T43 Spoiler, decklid ------

Published January 13, 2006 Page 6 2005 Cadillac STS EQUIPMENT GROUPS

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

Q13 Wheels, 2 - 17" x 7.5" (43.2 cm x 19.1 cm) ------front, 2 - 17" x 8" (43.2 cm x 20.3 cm) rear, cast aluminum, polished, 7-spoke

N87 Wheels, 4 - 18" x 8" (45.6 cm x 20.3 cm) cast ------aluminum polished, 9-spoke faceted

N93 Wheels, 4 - 17" x 7.5" (43.2 cm x 19.1 cm) ------aluminum polished

CE1 Wipers, RainSense ------

JE5 Brakes, performance ------

G80 Limited slip differential ------1 1 - RWD only.

V03 Performance Cooling Package, includes -- -- A ------P/S cooler, mechanical engine driven fan and (2) 80 watt pusher electric fans

V09 Performance Cooling Package ------

NV7 Premium Steering Gear, ZF ------

FE3 Suspension, 4-wheel independent with ------Magnetic Ride Control

Published January 13, 2006 Page 7 2005 Cadillac STS EQUIPMENT GROUPS

S = Standard Equipment A = Available -- (dashes) = Not Available D = ADI Available = Included in Equipment Group = Included in Equipment Group but upgradeable

No deletions allowed to Equipment Groups. Additional options may be added; check ordering information section for compatibility.

Codes listed in the shaded column titled Ref. Only RPO Code are for internal use only and should not be ordered.

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

A45 Memory Package, memory "presets" for 2 -- -- drivers, includes 8-way power driver/passenger seat with easy exit driver seat, outside mirrors, power tilt and telescoping steering wheel with easy exit, and radio and climate control settings

DD8 Mirror, inside rearview, electrochromic -- -- 1 -- -- 1 1 (light-sensitive auto dimming), includes OnStar controls 1 - Included with (YQ4) Sound System, ETR AM/FM stereo with in-dash 6-disc CD changer, Bose, DVD-based navigation

AL2 Seat adjuster, 4-way power lumbar -- --

IL3 Seats, premium Tuscany all-leather seats ------

KA1 Seats, heated, front, driver and passenger ------

KA6 Seats, heated, rear outboard seating ------positions

KB6 Seats, heated/ventilated, front ------

IL2 Seat trim, Nuance leather seating surfaces S S S S S --

YQ2 Sound System, ETR AM/FM stereo, Bose, ------with in-dash 6 disc CD changer, includes Radio Data System and 8 speakers

YQ4 Sound System, ETR AM/FM Studio ------Surround Sound Bose 5.1 with in-dash 6 disc DVD changer, DVD-based Advanced Navigation, includes Radio Data System, seek-and-scan, digital clock, AudioPilot automatic volume compensation, TheftLock, weather band, digital signal processing and 15 speakers, rear passenger A/V jacks

Published January 13, 2006 Page 8 2005 Cadillac STS EQUIPMENT GROUPS

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

U2K Sound system feature, XM Satellite Radio -- A1 2 -- A2 2 2 features 67 channels of 100% commercial-free music included in its over 150 channels of the best in music, news, sports, talk, comedy, XM Instant Traffic and Weather, and more. Digital quality sound with coast-to-coast signal coverage. Three trial months - no obligation. 1 - Included and only available with (PCR) Premium Upgrade Package. Subscription fees apply. Available only in the contiguous U.S. 2 - Subscription fees apply. Available only in the 48 contiguous U.S.

N31 Steering wheel, leather-wrapped with ------wood accents, heated, wood

NR7 Steering wheel, leather-wrapped rim, heated ------

CF5 Sunroof, power, tilt-sliding, electric with -- A -- A express-open, includes sunshade

UJ6 Tire pressure monitor system, air pressure ------sensors in each tire. Pressure display in Driver Information Center

AP9 Trunk Convenience Package -- A1 -- 1 - Included and only available with (PCR) Premium Upgrade Package

UG1 Universal transmitter, HomeLink, includes -- A1 -- garage door opener, 3-channel programmable 1 - Included and only available with (PCR) Premium Upgrade Package

B19 Wood Trim Package, includes real -- A1 ------Eucalyptus wood on center stack, console and IP molding 1 - Included and only available with (PCR) Premium Upgrade Package

B20 Wood Trim Package, includes real ------Eucalyptus wood on steering wheel, shifter knob, center stack and console, IP spear molding and door pulls

TQ5 Headlamps, Intellibeam, automatic low/high ------beam control

TT6 Headlamps, Xenon, high-intensity discharge, ------windshield wiper activated, includes flash-to-pass and headlamp washers

CE4 Headlamp washer system ------1 1 1 - Included with (TT6) Headlamps, Xenon, high-intensity discharge

T43 Spoiler, decklid ------

Published January 13, 2006 Page 9 2005 Cadillac STS EQUIPMENT GROUPS

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

Q13 Wheels, 2 - 17" x 7.5" (43.2 cm x 19.1 cm) ------front, 2 - 17" x 8" (43.2 cm x 20.3 cm) rear, cast aluminum, polished, 7-spoke

N87 Wheels, 4 - 18" x 8" (45.6 cm x 20.3 cm) cast ------aluminum polished, 9-spoke faceted

N93 Wheels, 4 - 17" x 7.5" (43.2 cm x 19.1 cm) ------aluminum polished

CE1 Wipers, RainSense ------

JE5 Brakes, performance ------

G80 Limited slip differential ------1 1 - RWD only.

V03 Performance Cooling Package, includes -- -- A ------P/S cooler, mechanical engine driven fan and (2) 80 watt pusher electric fans

V09 Performance Cooling Package ------

NV7 Premium Steering Gear, ZF ------

FE3 Suspension, 4-wheel independent with ------Magnetic Ride Control

ADDITIONAL OPTIONS

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

K59 Cruise control, adaptive, sophisticated radar ------A A transceiver automatically adjusts speed to maintain preset following distance, includes telltale in reconfigurable head-up display

PCR Premium Upgrade Package, includes (AP9) -- A ------Trunk Convenience Package, (U2K) Sound system feature, XM Satellite Radio, (UG1) Universal transmitter, Homelink and (B19) Wood Trim Package

Published January 13, 2006 Page 10 2005 Cadillac STS EQUIPMENT GROUPS

ADDITIONAL OPTIONS

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

U2K Sound system feature, XM Satellite Radio -- A1 2 -- A2 2 2 features 67 channels of 100% commercial-free music included in its over 150 channels of the best in music, news, sports, talk, comedy, XM Instant Traffic and Weather, and more. Digital quality sound with coast-to-coast signal coverage. Three trial months - no obligation. 1 - Included and only available with (PCR) Premium Upgrade Package. Subscription fees apply. Available only in the contiguous U.S. 2 - Subscription fees apply. Available only in the 48 contiguous U.S.

CF5 Sunroof, power, tilt-sliding, electric with -- A -- A express-open, includes sunshade

QAF Performance Handling Package, includes ------A1 Tires, P235/45ZR18 18" Michelin Pilot Sport, front and P255/45ZR18 rear (summer only tires) and Performance Brake Linings 1 - Requires (M22) Transmission, 5-speed automatic, RWD. Not available with (MV3) Transmission, 5-speed automatic, AWD.

QF8 NEW! Wheels, 18" x 8" (45.6 cm x 20.3 cm) -- -- A1 -- -- A2 -- cast aluminum, polished, 9-spoke, non-faceted 1 - Requires (Q12) Tires, P235/50ZR18 front and P255/45ZR18 rear, Michelin, W-rated, all-season, blackwall. 2 - Requires (Q12) Tires, P235/50ZR18 front and P255/45ZR18 rear, Michelin, W-rated, all-season, blackwall. Not available with (MV3) Transmission, 5-speed automatic, HMD, 5L50-E PTU, electronic, O/D, AWD.

FE9 Emissions, Federal requirements A A A A A A A

NE1 Emissions, Maine, Massachusetts, New York A A A A A A A or Vermont state requirements

YF5 Emissions, California state requirements A A A A A A A

NB8 Emissions override, California, A1 A1 A1 A1 A1 A1 A1 Massachusetts or New York (for vehicles ordered by dealers in states of California, Massachusetts or New York with Federal emissions) 1 - Requires (FE9) Emissions, Federal requirements.

Published January 13, 2006 Page 11 2005 Cadillac STS EQUIPMENT GROUPS

ADDITIONAL OPTIONS

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

NC7 Emissions override, Federal (for vehicles A1 A1 A1 A1 A1 A1 A1 ordered by dealers in Federal emission states with California, New York, Vermont, Massachusetts or Maine emissions; may also be used by dealers in states of California, New York, Vermont, Massachusetts or Maine to order different state-specific emissions) 1 - Requires (YF5) Emissions, California state requirements or (NE1) Emissions, New York, Vermont, Massachusetts or Maine requirements.

K05 Engine block heater A A A A A A A

V03 Performance Cooling Package, includes -- -- A ------P/S cooler, mechanical engine driven fan and (2) 80 watt pusher electric fans

MV3 Transmission, 5-speed automatic. HMD, ------A1 A1 5L50-E PTU, electronic, O/D, AWD 1 - (R8E) Gas guzzler tax is automatically added to (MV3) orders.

Published January 13, 2006 Page 12 2005 Cadillac STS PEG STAIRSTEP

S = Standard Equipment A = Available -- (dashes) = Not Available D = ADI Available = Included in Equipment Group = Included in Equipment Group but upgradeable

No deletions allowed to Equipment Groups. Additional options may be added; check ordering information section for compatibility.

Codes listed in the shaded column titled Ref. Only RPO Code are for internal use only and should not be ordered.

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

A45 Memory Package

AL2 Seat adjuster, 4-way power lumbar

CE1 Wipers, RainSense

Q13 Wheels, 2 - 17" x 7.5" (43.2 cm x 19.1 cm) front, 2 - 17" x 8" (43.2 cm x 20.3 cm) rear

KA1 Seats, heated

YQ2 Sound System, ETR AM/FM stereo, Bose, with in-dash 6 disc CD changer

KA6 Seats, heated

AP9 Trunk Convenience Package

UG1 Universal transmitter, HomeLink

JE5 Brakes

G80 Limited slip differential

DD8 Mirror, inside rearview, electrochromic

KB6 Seats, heated/ventilated

YQ4 Sound System, ETR AM/FM Studio Surround Sound Bose 5.1 with in-dash 6 disc DVD changer

U2K Sound system feature, XM Satellite Radio

T43 Spoiler, decklid

N31 Steering wheel, leather-wrapped with wood accents, heated

CF5 Sunroof, power

UJ6 Tire pressure monitor system, air pressure sensors in each tire

B20 Wood Trim Package, includes real Eucalyptus wood on steering wheel

NV7 Premium Steering Gear, ZF

NR7 Steering wheel, leather-wrapped rim

N93 Wheels, 4 - 17" x 7.5" (43.2 cm x 19.1 cm) aluminum polished

B19 Wood Trim Package

TQ5 Headlamps, Intellibeam

Published January 13, 2006 Page 13 2005 Cadillac STS PEG STAIRSTEP

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

TT6 Headlamps, Xenon, high-intensity discharge

CE4 Headlamp washer system

FE3 Suspension, 4-wheel independent with Magnetic Ride Control

V09 Performance Cooling Package

IL2 Seat trim, Nuance leather seating surfaces

V03 Performance Cooling Package, includes P/S cooler

IL3 Seats, premium Tuscany all-leather seats

N87 Wheels, 4 - 18" x 8" (45.6 cm x 20.3 cm) cast aluminum polished

Published January 13, 2006 Page 14 2005 Cadillac STS INTERIOR

S = Standard Equipment A = Available -- (dashes) = Not Available D = ADI Available = Included in Equipment Group = Included in Equipment Group but upgradeable

Codes listed in the shaded column titled Ref. Only RPO Code are for internal use only and should not be ordered.

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

AY0 Air bags, frontal dual-stage and side-thorax S1 S1 S1 S1 S1 S1 S1 for driver and front passenger, head curtain for front and outboard rear passengers 1 - Head curtain air bags are designed to help reduce the risk of head and neck injuries to front and rear seat occupants on the near side of certain side-impact collisions. Always use safety belts and proper child restraints, even in vehicles equipped with air bags. Children are safer when properly secured in a rear seat, See the Owner's Manual for more safety information.

K14 Air filtration system, outside recirculating air -- S S -- S S S filter

Aluminum Trim Package, premium S S -- S ------aluminum trim, includes center stack, console and IP spear molding

Armrest, center, front S S S S S S S

Armrest, center, rear, includes dual S S S S S S S cupholders

Climate Control, dual-zone, includes S S S S S S S individual climate settings for driver and right front passenger

Console, floor, includes floor shifter, integral S S S S S S S armrest, storage compartment, cupholders and (2) auxiliary power outlets

Cruise control, electronic with set and S S S S S S S resume speed, includes telltale in instrument panel cluster

K59 Cruise control, adaptive, sophisticated radar ------A A transceiver automatically adjusts speed to maintain preset following distance, includes telltale in reconfigurable head-up display

Decklid, power release S S S S S S S

Defogger, rear-window, electric, includes S S S S S S S front and side window outlets, driver and front passenger

Door locks, power programmable S S S S S S S

Door locks, child security, rear S S S S S S S

Published January 13, 2006 Page 15 2005 Cadillac STS INTERIOR

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

Driver Information Center, includes display S S S S S S S in gauge cluster including tire pressure, 6 language capability (English, French, German, Italian, Japanese and Spanish)

Floormats, carpeted, front and rear S S S S S S S

Glovebox, lockable, passenger side, S S S S S S S illuminated

UV6 Head-Up Display, reconfigurable, includes ------A1 A1 digital readouts for vehicle speed, selected gear, adaptive cruise indicator, radio information, high-beam indicator, fuel level, six languages available (English, French, German, Italian, Japanese, Spanish) 1 - Included and only available with (K59) Cruise Control, adaptive

Ignition, keyless, engaged with push button S S S S S S S start

U30 Instrumentation, analog, includes S S S S S S S speedometer, tachometer, fuel gauge and engine water temperature gauge

AP3 Keyless Access, includes keyless ignition S S S S S S S which is engaged with push button start, and 2 remote transmitters which enable passive entry on both front doors and trunk, and remote start capability

Lighting, illuminated entry and exit, includes S S S S S S S courtesy lamps and entrance lamps in base of door and under IP

Map pockets, front and rear door storage S S S S S S S

A45 Memory Package, memory "presets" for 2 -- -- drivers, includes 8-way power driver/passenger seat with easy exit driver seat, outside mirrors, power tilt and telescoping steering wheel with easy exit, and radio and climate control settings

DD7 Mirror, inside rearview, electrochromic S1 S1 -- S1 S1 -- -- (light-sensitive auto dimming), includes compass and OnStar controls 1 - Not available in combination with (YQ4) Sound System, ETR AM/FM stereo with in-dash 6-disc CD changer, Bose, DVD-based navigation

Published January 13, 2006 Page 16 2005 Cadillac STS INTERIOR

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

DD8 Mirror, inside rearview, electrochromic -- -- 1 -- -- 1 1 (light-sensitive auto dimming), includes OnStar controls 1 - Included with (YQ4) Sound System, ETR AM/FM stereo with in-dash 6-disc CD changer, Bose, DVD-based navigation

UE1 OnStar, 1-year Directions & Connections S1 S1 S1 S1 S1 S1 S1 Service, includes Automatic Notification of Air Bag Deployment, Emergency Services, Roadside Assistance, Stolen-Vehicle Tracking, AccidentAssist, Remote Door Unlock, Remote Diagnostics, Online Concierge, Remote Horn and Lights, Route Support, RideAssist, Information/Convenience Services and available Personal Calling and Virtual Advisor 1 - Visit www.onstar.com for system information and details.

Parking brake release, automatic S S S S S S S

Personalization features, for more S S S S S S S convenient entry/exit

PCR Premium Upgrade Package, includes (AP9) -- A ------Trunk Convenience Package, (U2K) Sound system feature, XM Satellite Radio, (UG1) Universal transmitter, Homelink and (B19) Wood Trim Package

Retained accessory power, radio, power S S S S S S S windows, audio steering wheel controls and sunroof may be used for up to 10 minutes after ignition is turned off and doors remain closed

Safety belts, 3-point, all positions, with S S S S S S S pretensioners and child restraint provisions

AL2 Seat adjuster, 4-way power lumbar -- --

AQ9 Seats, front bucket, with articulating head S S S S S S S restraints

IL3 Seats, premium Tuscany all-leather seats ------

KA1 Seats, heated, front, driver and passenger ------

KA6 Seats, heated, rear outboard seating ------positions

KB6 Seats, heated/ventilated, front ------

IL2 Seat trim, Nuance leather seating surfaces S S S S S --

Smart Remote Start S S S S S S S

Published January 13, 2006 Page 17 2005 Cadillac STS INTERIOR

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

YQ1 Sound System, ETR AM/FM stereo, Bose, S -- -- S ------with CD player, includes Radio Data System and 8 speakers

YQ2 Sound System, ETR AM/FM stereo, Bose, ------with in-dash 6 disc CD changer, includes Radio Data System and 8 speakers

YQ4 Sound System, ETR AM/FM Studio ------Surround Sound Bose 5.1 with in-dash 6 disc DVD changer, DVD-based Advanced Navigation, includes Radio Data System, seek-and-scan, digital clock, AudioPilot automatic volume compensation, TheftLock, weather band, digital signal processing and 15 speakers, rear passenger A/V jacks

U2K Sound system feature, XM Satellite Radio -- A1 2 -- A2 2 2 features 67 channels of 100% commercial-free music included in its over 150 channels of the best in music, news, sports, talk, comedy, XM Instant Traffic and Weather, and more. Digital quality sound with coast-to-coast signal coverage. Three trial months - no obligation. 1 - Included and only available with (PCR) Premium Upgrade Package. Subscription fees apply. Available only in the contiguous U.S. 2 - Subscription fees apply. Available only in the 48 contiguous U.S.

Steering column, power tilt and telescopic S S S S S S S

N31 Steering wheel, leather-wrapped with ------wood accents, heated, wood

NP5 Steering wheel, leather-wrapped rim S S -- S ------

NR7 Steering wheel, leather-wrapped rim, heated ------

Steering wheel, mounted controls, includes S S S S S S S controls for sound system, voice recognition and Adaptive Cruise Control (if equipped)

CF5 Sunroof, power, tilt-sliding, electric with -- A -- A express-open, includes sunshade

UA6 Theft-deterrent system, PASS-Key III S S S S S S S

UJ6 Tire pressure monitor system, air pressure ------sensors in each tire. Pressure display in Driver Information Center

AP9 Trunk Convenience Package -- A1 -- 1 - Included and only available with (PCR) Premium Upgrade Package

Trunk release, power S S S S S S S

Published January 13, 2006 Page 18 2005 Cadillac STS INTERIOR

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

UG1 Universal transmitter, HomeLink, includes -- A1 -- garage door opener, 3-channel programmable 1 - Included and only available with (PCR) Premium Upgrade Package

Visors, telescoping, illuminated vanity S S S S S S S mirrors, driver and front passenger

Windows, power, includes express up and S S S S S S S down, all 4 windows, with front and rear passenger lockout

B19 Wood Trim Package, includes real -- A1 ------Eucalyptus wood on center stack, console and IP molding 1 - Included and only available with (PCR) Premium Upgrade Package

B20 Wood Trim Package, includes real ------Eucalyptus wood on steering wheel, shifter knob, center stack and console, IP spear molding and door pulls

Published January 13, 2006 Page 19 2005 Cadillac STS EXTERIOR

S = Standard Equipment A = Available -- (dashes) = Not Available D = ADI Available = Included in Equipment Group = Included in Equipment Group but upgradeable

Codes listed in the shaded column titled Ref. Only RPO Code are for internal use only and should not be ordered.

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

Antenna, integral S S S S S S S

Daytime running lamps S S S S S S S

Exhaust outlets, dual chrome-plated tips S S S S S S S

Fog lamps, front, integral in front fascia S S S S S S S

Glass, Solar-Ray dark tinted S S S S S S S

Headlamps, halogen, Tungsten, windshield S S S S S -- -- wiper activated, includes Twilight Sentinel and flash-to-pass feature

TQ5 Headlamps, Intellibeam, automatic low/high ------beam control

TT6 Headlamps, Xenon, high-intensity discharge, ------windshield wiper activated, includes flash-to-pass and headlamp washers

CE4 Headlamp washer system ------1 1 1 - Included with (TT6) Headlamps, Xenon, high-intensity discharge

DR2 Mirrors, outside rearview, power, heated, S S S S S S S body-color, folding, driver side electrochromic

QAF Performance Handling Package, includes ------A1 Tires, P235/45ZR18 18" Michelin Pilot Sport, front and P255/45ZR18 rear (summer only tires) and Performance Brake Linings 1 - Requires (M22) Transmission, 5-speed automatic, RWD. Not available with (MV3) Transmission, 5-speed automatic, AWD.

UD7 Rear Parking Assist, Ultrasonic, includes S S S S S S S rearview LED display and audible warning

T43 Spoiler, decklid ------

Tail lamps, LED illumination S S S S S S S

QKP Tires, P235/50R17, Michelin, S-rated, ------S S -- -- all-season, blackwall

Q11 Tires, P235/50R17 front and P255/45R17 S S S -- -- S -- rear, Michelin, V-rated, all-season, blackwall

Q12 Tires, P235/50R18 front and P255/45R18 -- -- A1 -- -- A1 S rear, Michelin, W-rated, all-season, blackwall 1 - Included and only available with (QF8) Wheels, 18" (45.6 cm x 20.3 cm) cast aluminum, polished, 9-spoke non-faceted.

Published January 13, 2006 Page 20 2005 Cadillac STS EXTERIOR

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

Q14 Wheels, 2 - 17" x 7.5" (43.2 cm x 19.1 cm) S ------front, 2 - 17" x 8" (43.2 cm x 20.3 cm) rear, cast aluminum, painted, 7-spoke

Q13 Wheels, 2 - 17" x 7.5" (43.2 cm x 19.1 cm) ------front, 2 - 17" x 8" (43.2 cm x 20.3 cm) rear, cast aluminum, polished, 7-spoke

QF8 NEW! Wheels, 18" x 8" (45.6 cm x 20.3 cm) -- -- A1 -- -- A2 -- cast aluminum, polished, 9-spoke, non-faceted 1 - Requires (Q12) Tires, P235/50ZR18 front and P255/45ZR18 rear, Michelin, W-rated, all-season, blackwall. 2 - Requires (Q12) Tires, P235/50ZR18 front and P255/45ZR18 rear, Michelin, W-rated, all-season, blackwall. Not available with (MV3) Transmission, 5-speed automatic, HMD, 5L50-E PTU, electronic, O/D, AWD.

N87 Wheels, 4 - 18" x 8" (45.6 cm x 20.3 cm) cast ------aluminum polished, 9-spoke faceted

N88 Wheels, 4 - 17" x 7.5" (43.2 cm x 19.1 cm) ------S ------cast aluminum painted

N93 Wheels, 4 - 17" x 7.5" (43.2 cm x 19.1 cm) ------aluminum polished

Wipers, intermittent, front, includes washers S -- -- S S -- --

CE1 Wipers, RainSense ------

Published January 13, 2006 Page 21 2005 Cadillac STS MECHANICAL

S = Standard Equipment A = Available -- (dashes) = Not Available D = ADI Available = Included in Equipment Group = Included in Equipment Group but upgradeable

Codes listed in the shaded column titled Ref. Only RPO Code are for internal use only and should not be ordered.

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

Battery, maintenance free, includes rundown S S S S S S S protection

JL9 Brakes, 4-wheel antilock, 4-wheel disc S S -- S S -- --

JE5 Brakes, performance ------

Brakes, Panic Assist, senses high impact S S S S S S S braking and assists with braking maneuvers

Driver Shift Control S S S S S S S

FE9 Emissions, Federal requirements A A A A A A A

NE1 Emissions, Maine, Massachusetts, New York A A A A A A A or Vermont state requirements

YF5 Emissions, California state requirements A A A A A A A

NB8 Emissions override, California, A1 A1 A1 A1 A1 A1 A1 Massachusetts or New York (for vehicles ordered by dealers in states of California, Massachusetts or New York with Federal emissions) 1 - Requires (FE9) Emissions, Federal requirements.

NC7 Emissions override, Federal (for vehicles A1 A1 A1 A1 A1 A1 A1 ordered by dealers in Federal emission states with California, New York, Vermont, Massachusetts or Maine emissions; may also be used by dealers in states of California, New York, Vermont, Massachusetts or Maine to order different state-specific emissions) 1 - Requires (YF5) Emissions, California state requirements or (NE1) Emissions, New York, Vermont, Massachusetts or Maine requirements.

K05 Engine block heater A A A A A A A

LY7 Engine, 3.6L V6 VVT (255 HP [190.2 kW] @ S1 S1 S1 ------6500 rpm, 254 lb.-ft. [342.9 N-m] @ 2800 rpm) 1 - Requires (M82) Transmission, auto, 5-speed, HMD, 5L40-E

LH2 Engine, 4.6L Northstar V8 VVT, SFI (320 HP ------S1 S1 S1 S1 [238.6 kW] @ 6400 rpm, 315 lb.-ft. [425.3 N-m] @ 4400 rpm) 1 - Requires (M22) Transmission, auto 5-speed, HMD, 5L50-E for RWD or (MV3) Transmission, auto, 5-speed, HMD, 5L50-E PTU for AWD

Published January 13, 2006 Page 22 2005 Cadillac STS MECHANICAL

Free Ref. STS (V6) RWD/AWD 6DW29 STS (V8) RWD/AWD 6DC29 Flow Only Description RPO RPO 1SA 1SB 1SC 1SD 1SE 1SF 1SG Code Code

Exhaust, stainless-steel, with dual chrome S S S S S S S tips

R8E Gas guzzler tax ------A1 A1 1 - (R8E) is not orderable but will be automatically added when AWD (MV3) Transmission is selected.

G80 Limited slip differential ------1 1 - RWD only.

V03 Performance Cooling Package, includes -- -- A ------P/S cooler, mechanical engine driven fan and (2) 80 watt pusher electric fans

V09 Performance Cooling Package ------

NV7 Premium Steering Gear, ZF ------

JL4 StabiliTrak S S S S S S S

Steering, power, rack-and-pinion, S S S S S S S speed-sensitive

FE1 Suspension, 4-wheel independent S S S S S -- --

FE3 Suspension, 4-wheel independent with ------Magnetic Ride Control

Traction control, all-speed, brake and S S S S S S S engine controlled

M22 Transmission, 5-speed automatic, HMD, ------S S S S 5L50-E, electronic, O/D, RWD

M82 Transmission, 5-speed automatic, HMD, S S S ------5L40-E, electronic

MV3 Transmission, 5-speed automatic. HMD, ------A1 A1 5L50-E PTU, electronic, O/D, AWD 1 - (R8E) Gas guzzler tax is automatically added to (MV3) orders.

Published January 13, 2006 Page 23 2005 Cadillac STS COLOR AND TRIM - SOLID PAINT

S = Standard Equipment A = Available -- (dashes) = Not Available = Included in Equipment Group = Included in Equipment Group but upgradeable

Interior

Decor Level Seat Type Seat Seat Trim Light Gray1 Ebony1 Cashmere2 Code

STS Std. Front, bucket AQ9 Nuance Leather seating 132 192 322 surfaces

STS Std. Front, bucket AQ9 Tuscany all-leather seats3 133 193 323

Interior

Exterior Color Touch Up Light Gray1 Ebony1 Cashmere2 Solid Paint Code Paint Number

Blue Chip 25U WA-722J A A A

Red Line4 29U WA-964L A A A

Black Raven 41U WA-8555 A A A

Silver Smoke 42U WA-911L A A A

Sand Storm 61U WA-918L -- A A

Moonstone 62U WA-805K A A A

Light Platinum 67U WA-994L A A A

Silver Green 92U WA-816K A A A

White Diamond4 98U WA-800J A A A 1 - Light Gray or Ebony Interiors include dark eucalyptus wood trim 2 - Cashmere interior includes medium eucalyptus wood trim. 3 - Included on 1SG only. 4 - Available at extra charge.

Published January 13, 2006 Page 24 2005 Cadillac STS ADI - ACCESSORIES

There is no data available for STS.

Published January 13, 2006 Page 25 2005 Cadillac STS DIMENSIONS

All dimensions in inches (mm) unless otherwise stated.

Specifications 6DW29 6DC29 STS V6 RWD STS V8 RWD/AWD

A Wheelbase 116.40 116.40 (2957) (2957)

B Overall length 196.30 196.30 (4986) (4986)

Body width 72.60 72.60 (1844) (1844)

D Overall height 57.60 57.60 (1463) (1463)

Front track width 61.80 61.80 (1570) (1570)

Rear track width 62.30 62.30 (1582) (1582)

Head room, front 38.70 38.70 (983) (983)

Head room, rear 37.90 37.90 (963) (963)

Shoulder room, front 58.60 58.60 (1488) (1488)

Shoulder room, rear 57.40 57.40 (1458) (1458)

Hip room, front 54.60 54.60 (1387) (1387)

Hip room, rear 55.60 55.60 (1412) (1412)

Leg room, front 42.60 42.60 (1082) (1082)

Leg room, rear 38.30 38.30 (973) (973)

Trunk Capacity 13.8 13.8 (390.8) (390.8)

Published dimensions indicated are without optional equipment or accessories. Additional accessories or equipment ordered at the customer's request can result in a minor change in these dimensions.

Published January 13, 2006 Page 26 2005 Cadillac STS SPECS

6DW29 6DC29 STS V6 RWD STS V8 RWD/AWD

Capacities

Curb weight, V6 RWD, lbs. (kg) 3960 (1796) --

Curb weight, V8 RWD, lbs. (kg) -- 4026 (1826)

Curb weight, V8 AWD, lbs. (kg) -- 4295 (1948)

Fuel capacity, approximate, gallon (liters) 17 (64) 17 (64)

Seating capacity (front/rear) 2/3 2/3

Published January 13, 2006 Page 27 2005 Cadillac STS WHEELS

Q14 Wheels, 2 - 17" x 7.5" (43.2 cm x 19.1 cm) front, 2 - 17" x 8" (43.2 cm x 20.3 cm) rear, cast aluminum, painted, 7-spoke

Q13 Wheels, 2 - 17" x 7.5" (43.2 cm x 19.1 cm) front, 2 - 17" x 8" (43.2 cm x 20.3 cm) rear, cast aluminum, polished, 7-spoke

N87 Wheels, 4 - 18" x 8" (45.6 cm x 20.3 cm) cast aluminum polished, 9-spoke faceted

N88 Wheels, 4 - 17" x 7.5" (43.2 cm x 19.1 cm) cast aluminum painted

N93 Wheels, 4 - 17" x 7.5" (43.2 cm x 19.1 cm) aluminum polished

Published January 13, 2006 Page 28 2005 Cadillac STS WHEELS

QF8 Wheels, 18" x 8" (45.6 cm x 20.3 cm) cast aluminum, polished, 9-spoke, non-faceted

Published January 13, 2006 Page 29 2005 Cadillac STS RADIOS

YQ1 Sound System, ETR AM/FM stereo, Bose, with CD player, includes Radio Data System and 8 speakers

YQ2 Sound System, ETR AM/FM stereo, Bose, with in-dash 6 disc CD changer, includes Radio Data System and 8 speakers

YQ4 Sound System, ETR AM/FM Studio Surround Sound Bose 5.1 with in-dash 6 disc DVD changer, DVD-based Advanced Navigation, includes Radio Data System, seek-and-scan, digital clock, AudioPilot automatic volume compensation, TheftLock, weather band, digital signal processing and 15 speakers, rear passenger A/V jacks

Published January 13, 2006 Page 30 2005 Cadillac STS TRAILERING SPECS

Maximum trailer ratings are calculated assuming standard equipped vehicle, driver and required trailering equipment. The weight of optional equipment, passengers and cargo will reduce the maximum trailer weight your vehicle can tow. 10 to 15% of the trailer weight is the recommended trailer tongue load.

Automatic Transmission Ratings with Ball Hitch

(LY7) 3.6L VVT DOHC V6 (LH2) 4.6L Northstar V8 VVT Model Maximum Trailer Weight Maximum Trailer Weight lbs. (kg) lbs. (kg)

6DW29 1000 (454)

6DC29 1000 (454) Trailering not recommended with the 1SE Equipment Group.

Published January 13, 2006 Page 31 2005 Cadillac STS RPO CODES

Option Code Description A45 Memory Package AL2 Seat adjuster, 4-way power lumbar AP3 Keyless Access, includes keyless ignition which is engaged with push button start AP9 Trunk Convenience Package AQ9 Seats, front bucket AY0 Air bags, frontal dual-stage and side-thorax for driver and front passenger B19 Wood Trim Package B20 Wood Trim Package, includes real Eucalyptus wood on steering wheel CE1 Wipers, RainSense CE4 Headlamp washer system CF5 Sunroof, power DD7 Mirror, inside rearview, electrochromic DD8 Mirror, inside rearview, electrochromic DR2 Mirrors, outside rearview FE1 Suspension, 4-wheel independent FE3 Suspension, 4-wheel independent with Magnetic Ride Control FE9 Emissions, Federal requirements G80 Limited slip differential IL2 Seat trim, Nuance leather seating surfaces IL3 Seats, premium Tuscany all-leather seats JE5 Brakes JL4 StabiliTrak JL9 Brakes K05 Engine block heater K14 Air filtration system, outside recirculating air filter K59 Cruise control, adaptive KA1 Seats, heated KA6 Seats, heated KB6 Seats, heated/ventilated LH2 Engine, 4.6L Northstar V8 VVT LY7 Engine, 3.6L V6 VVT M22 Transmission, 5-speed automatic M82 Transmission, 5-speed automatic MV3 Transmission, 5-speed automatic N31 Steering wheel, leather-wrapped with wood accents, heated N87 Wheels, 4 - 18" x 8" (45.6 cm x 20.3 cm) cast aluminum polished N88 Wheels, 4 - 17" x 7.5" (43.2 cm x 19.1 cm) cast aluminum painted N93 Wheels, 4 - 17" x 7.5" (43.2 cm x 19.1 cm) aluminum polished NB8 Emissions override NC7 Emissions override, Federal NE1 Emissions, Maine, Massachusetts, New York or Vermont state requirements NP5 Steering wheel, leather-wrapped rim NR7 Steering wheel, leather-wrapped rim NV7 Premium Steering Gear, ZF PCR Premium Upgrade Package Q11 Tires, P235/50R17 front and P255/45R17 rear Q12 Tires, P235/50R18 front and P255/45R18 rear Q13 Wheels, 2 - 17" x 7.5" (43.2 cm x 19.1 cm) front, 2 - 17" x 8" (43.2 cm x 20.3 cm) rear Q14 Wheels, 2 - 17" x 7.5" (43.2 cm x 19.1 cm) front, 2 - 17" x 8" (43.2 cm x 20.3 cm) rear

Published January 13, 2006 Page 32 2005 Cadillac STS RPO CODES

Option Code Description QAF Performance Handling Package QF8 Wheels, 18" x 8" (45.6 cm x 20.3 cm) cast aluminum, polished, 9-spoke, non-faceted QKP Tires, P235/50R17 R8E Gas guzzler tax T43 Spoiler, decklid TQ5 Headlamps, Intellibeam TT6 Headlamps, Xenon, high-intensity discharge U2K Sound system feature, XM Satellite Radio U30 Instrumentation, analog UA6 Theft-deterrent system, PASS-Key III UD7 Rear Parking Assist, Ultrasonic UE1 OnStar UG1 Universal transmitter, HomeLink UJ6 Tire pressure monitor system, air pressure sensors in each tire UV6 Head-Up Display V03 Performance Cooling Package, includes P/S cooler V09 Performance Cooling Package YF5 Emissions, California state requirements YQ1 Sound System, ETR AM/FM stereo, Bose, with CD player YQ2 Sound System, ETR AM/FM stereo, Bose, with in-dash 6 disc CD changer YQ4 Sound System, ETR AM/FM Studio Surround Sound Bose 5.1 with in-dash 6 disc DVD changer

Published January 13, 2006 Page 33 2005 STS DISTRIBUTION UPDATES

Updates for STS

Week of 4/25/2005 Effective 4/25/2005, the following changes will be made to the Vehicle Order Guide: • Exterior section-(Q12) Tires, P235/50ZR18 front and P255/45ZR18 rear, Michelin, W-rated, all-season, blackwall, changed symbol in 1SD column from "A1" to "--".

Week of 4/18/2005 Effective 4/18/2005, the following changes will be made to the Vehicle Order Guide: • Exterior section-(QF8) Wheels, 18" x 8" (45.6 cm x 20.3 cm) cast aluminum, changed footnote #2 in 1SF column to read "Requires (Q12) tires, P235/50ZR18 front and P255/45ZR18 rear, Michelin, W-rated, all-season, blackwall. Not available with (MV3) Transmission, 5-speed automatic, HMD, 5L50-E PTU, electronic, O/D, AWD."

Week of 4/4/2005 Effective 4/4/2005, the following changes will be made to the Vehicle Order Guide: • Interior section-(U2K) Sound system feature, XM Satellite Radio, changed the description to read "features 67 channels of 100% commercial-free music included in its over 150 channels of the best in music, news, sports, talk, comedy, XM Instant Traffic and Weather, and more. Digital quality sound with coast-to-coast signal coverage. Three trial months - no obligation.".

Week of 3/14/2005 Effective 3/14/2005, the following changes will be made to the Vehicle Order Guide: • Interior section-(U2J) Sound system feature, XM delete, removed from Order Guide. • Exterior section-(Q12) Tires, P235/50ZR18 front and P255/45ZR18 rear, changed availability in (V6) 1SC and (V8) 1SF columns from "--" to "A" with a footnote which reads "Included and only available with (QF8) Wheels, 18" x 8" (45.6 cm x 20.3 cm) cast aluminum, polished, 9-spoke non-faceted." • Exterior section-Added (QF8) Wheels, 18" x 8" (45.6 cm x 20.3 cm) cast aluminum, polished, 9-spoke, non-faceted as an available option on (V6) 1SC and (V8) 1SF PEGs.

Week of 2/14/2005 Effective 2/14/2005, the following changes will be made to the Vehicle Order Guide: • Interior section-(IL3) Seats, premium Tuscany all-leather seats, changed availability in 1SF column from "A" to "--". • Exterior section-(QAF) Performance Handling Package, removed "Not available until January, 2005" from footnote 1 description. • Mechanical section-(R8E) Gas guzzler tax, changed availability for 1SF from "--" to "A1" with footnote #1 which reads "(R8E) is not orderable but will be automatically added when AWD (MV3) Transmission is selected." • Mechanical section-(MV3) Transmission, 5-speed automatic, changed availability for 1SF from "--" to "A1" with footnote #1 which reads "(R8E) Gas guzzler tax is automatically added to (MV3) orders." • Color and Trim section-Removed footnote #3 entirely. Changed footnote #4 to now be footnote #3.

Published January 13, 2006 Page 34