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Wheels and Tires TIRE INFORMATION Tire temperatures and pressures increase Tires of the correct type, manufacture and when running. Deflating a warm tire to the dimensions, with correct cold inflation recommended pressure will result in pressures are an integral part of every under-inflation which may be dangerous. vehicle’s design. Regular maintenance of tires contributes not only to safety, but to ! WARNING: the designed function of the vehicle. • Under-inflation causes excessive Road-holding, steering and braking are flexing and uneven wear to the tire. especially vulnerable to incorrectly This can lead to sudden failure. pressurised, badly fitted or worn tires. Over-inflation causes a harsh ride, Tires of the correct size and type, but of uneven tire wear and poor handling. different make have widely varying • Pressure checks should only be characteristics. It is therefore carried out when the tires are cold recommended that only Jaguar approved (the vehicle has been stationary for tires are fitted to all wheels. three hours or more). Tire pressure label ! WARNING: (Canada and Mexico only) • Always ensure replacement tires A label giving tire pressure information is have the correct rating and visible on the fuel filler flap. specifications (e.g. load index, size, speed rating) for your vehicle. Contact your Jaguar Dealer for more information. • When using tires other than those recommended by Jaguar, do not exceed the speed capacity recommended by the manufacturer. Tire glossary Refer to page 237 for a glossary of terms and definitions associated with tire pressures and vehicle weights. TIRE PRESSURES The tire pressures recommended provide optimum ride and handling characteristics for all normal operating conditions. The pressures should be checked and correctly set each week, with the tires cold.
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Tire pressure label/placard (USA only)
A tire information label is visible on the • The vehicle capacity weight (4), which pillar behind the driver’s door (also known includes the weight of the driver, as the B pillar), giving information specific passengers and cargo. to the wheel and tire equipment fitted to • Cold inflation pressures for the spare the vehicle when it was built. The label tire and the front and rear tires (5). contains the following information: • The size of the tires (6) with which the • The maximum number of occupants vehicle was originally equipped. (1), divided between the front (2) and Note: The label must not be changed, rear (3) of the vehicle. even if different wheels are fitted at a later stage.
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Recommended Tire Pressures The following table gives the tire pressures for all recommended tire sizes. Tire Size Tire Pressure Front Rear 235/55 R 17 30 psi, 210 kPa 32 psi, 220 kPa 235/50 R 18 30 psi, 210 kPa 32 psi, 220 kPa 255/40 R 19 32 psi, 220 kPa 34 psi, 230 kPa 255/35 R 20 34 psi, 230 kPa 36 psi, 250 kPa
Checking tire pressures A slight natural pressure loss occurs with The following procedure should be used time. If this exceeds 2 psi (14 kPa, 0.14 2 to check and adjust the tire pressures: bar, 0.14 kg/cm ) per week, the cause should be investigated and rectified. 1. Remove the valve cover. Note: It is an offence in certain countries 2. Firmly attach a tire pressure to drive a vehicle with tires that are not gauge/inflator to the valve. inflated in accordance with the vehicle’s 3. Read the tire pressure from the proper use. gauge. If required, add air to the tire. 4. If air is added to the tire, remove the gauge from the valve and reattach it before checking that the pressure is correct. Failure to remove and reattach the gauge from the valve could cause the gauge to show an incorrect reading. 5. If too much air is added, remove the gauge from the valve and allow air out of the tire by pressing the centre of the valve. Reconnect the gauge to the valve, and check that the air pressure is correct. 6. Refit the valve cover.
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TIRE PRESSURE MONITORING SYSTEM (TPMS) (Where fitted) General information
! WARNING: • The TPMS is NOT a substitute for manually checking tire pressures. Tire pressures should be checked regularly, when cold, using an accurate pressure gauge. Failure to properly maintain your pressures could increase the risk of tire failure, with consequential loss of vehicle control and personal injury. • The TPMS CANNOT register damage to a tire. Regularly check the condition of your tires. Note: 1. Non-approved accessories may interfere with the system. If this occurs, TIRE PRESSURE SYSTEM Wheels fitted with a TPMS can be easily FAULT is displayed in the message visually identified by the external metal centre. lock nut and valve (1). All Jaguar 2. Tires may affect the performance of non-TPMS wheels have a rubber valve the TPMS. Always replace tires in fitted (2). accordance with recommendations, The TPMS monitors pressure in each tire see page 232. including the full size spare tire (temporary-use spare wheels are not fitted with sensors and are consequently not monitored).
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TPMS operation Note: Please note that the TPMS is not a The TPMS monitors pressure of the tires substitute for proper tire maintenance and via sensors located in each wheel and a it is the drivers responsibility to maintain receiver located within the vehicle. correct tire pressure, even if Communication between sensor and under-inflation has not reached the level receiver is via Radio Frequency (RF) to trigger illumination of the TPMS low tire signals. The tire pressure warning pressure telltale. comprises a yellow telltale light within the The warning comprises the instrument cluster and an associated TPMS telltale and the AMBER message within the message centre. priority warning light within the Each tire, including the spare (if provided), instrument cluster and an associated should be checked monthly when cold message within the message centre, see and inflated to the inflation pressure page 102. recommended by the vehicle Caution: When inflating the tires care manufacturer on the vehicle placard or should be taken to avoid bending or tire inflation pressure label. (If your vehicle damaging the TPMS valves. Always has tires of a different size than the size ensure correct alignment of the indicated on the vehicle placard or tire inflation head to the valve stem. inflation pressure label, you should The TPMS will display TIRE PRESSURE determine the proper tire inflation SYSTEM FAULT and illuminate the pressure for those tires.) As an added AMBER priority warning light when the safety feature, your vehicle has been system is not operating properly. With this equipped with a tire pressure monitoring message displayed, the system may not system (TPMS) that illuminates a low be able to detect or signal low tire pressure telltale when one or more of your pressure as intended. tires is significantly under-inflated. should stop and check your tires as soon as TPMS malfunctions may occur for a possible variety of reasons, including the installation of incompatible replacement Accordingly, when the low pressure tires or wheels on the vehicle. telltale illuminates, you should stop and check your tires as soon as possible, and Always check for TPMS malfunctions inflate them to the proper pressure. after replacing one or more tires or wheels Driving on a significantly under-inflated on your vehicle to ensure that the tire causes the tire to overheat and can replacement tires are compatible with the lead to tire failure. Under-inflation also TPMS. reduces fuel efficiency and the tire tread Tire pressures life, and may affect the vehicle’s handling To correctly set the tire pressures, see and stopping ability. page 225. Spare tire pressure: The full size spare tire should be inflated to the highest pressure for the specified tire size.
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If a wheel and tire needs to be changed Full size spare wheel: Should it be ! WARNING: necessary to change a wheel and tire with A new valve stem seal, washer and nut the spare, the system will automatically must be fitted whenever the valve stem recognise the change in wheel positions. nut has been loosened. Sensor units After driving above 18 mph (25 km/h) any and nuts must be refitted using correct TPMS warnings will clear within torque figures. approximately five minutes. If a sensor requires to be changed Temporary-use spare wheel: The temporary-use spare wheel does not It is recommended that if the sensor have a sensor fitted. Therefore, should it requires replacing, it is carried out by a be necessary to change a wheel and tire Jaguar Dealer. with the temporary-use spare wheel the Should the TPMS warning for any wheel TPMS will automatically recognise the not clear, even after ensuring correct change in wheel positions. After inflation pressures and driving for more approximately ten minutes of driving than ten minutes above 18 mph (25 km/h), above 18 mph (25 km/h), the message contact your Jaguar Dealer. centre will display the message TIRE Radio frequency approval PRESSURE SENSOR FAULT and the AMBER priority warning light will The TPMS devices comply with Part 15 of illuminate. the FCC rules and RSS-210 of the industry Canada. If a tire needs to be changed Operation is subject to the two following Care must be taken when removing and conditions: refitting tires to ensure that the tire 1. The device may not cause harmful pressure sensor is not damaged. interference. In order to avoid damage to the pressure 2. This device must accept any sensor the tire MUST be removed and interference received, including refitted to the road wheel in a specific interference that may cause manner. undesired operation. It is recommended that you always Note: have your tires serviced or changed by Changes or modifications not expressly approved by the manufacturer a Jaguar Dealer. could void the user’s authority to operate Care must be taken to avoid contact the equipment. between the bead of the tire and the The TPMS radio frequency approval sensor during removal and refitting of the numbers for the USA and Canada are: tire, otherwise the sensor may become damaged and/or inoperable. USA FCCID: KR5S120123, TX- KR55WK45057B RX-5WK4887 Valve stem seal, washer, nut, valve core and cap should be replaced at every tire Canada IC: 267T-S120123, change. 267T-5WK47594, CAN2671032336A.
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