ꢀ If there are snow chains on the tires. Using snow chains can cause the system to give false
warnings because snow chains increase tire circumference.
The Tire Pressure Monitoring System Ç may not react at first or may not react at all when you are
driving in a sporty manner, or on snow-covered or unpaved roads, when you are driving with snow
chains, or in certain other situations. A change in the tread circumference of a tire is signaled by the
Tire Pressure Monitoring System indicator in the instrument cluster (telltale).
The tire pressure recommended for the tires originally installed on the vehicle is on a sticker on the
driver door jamb, Tires.
Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the
inflation pressure recommended by the vehicle manufacturer on the vehicle placard or tire inflation
pressure label. (If your vehicle has tires of a different size than the size indicated on the vehicle
placard or tire inflation pressure label, you should determine the proper tire inflation pressure for those
tires).
As an added safety feature, your vehicle has been equipped with a Tire Pressure Monitoring System
(TPMS) that illuminates a low tire pressure telltale when one or more of your tires is significantly
underinflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check
your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly
underinflated tire causes the tire to overheat and can lead to tire failure. Underinflation also reduces
fuel efficiency and tire tread life, and may affect the vehicle's handling and stopping ability.
Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver's
responsibility to maintain correct tire pressure, even if underinflation has not reached the level to
trigger illumination of the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system
is not operating properly. The TPMS malfunction indicator is combined with the low tire pressure
telltale. When the system detects a malfunction, the telltale will flash for approximately 1 minute and
then remain continuously illuminated. This sequence will continue upon subsequent vehicle start-ups
as long as the malfunction exists.
When the malfunction indicator is illuminated, the system may not be able to detect or signal low tire
pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation
of replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning
properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on
your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue
to function properly.
Resetting and recalibrating the benchmark tire pressure
The SET button for the Tire Pressure Monitoring System is in the glove compartment ⇒ꢀfig. 130. The
SET button resets the benchmark tire pressure used by the TPMS to the current tire pressure in the
tires based on the circumference of the tires. To reset the TPMS, switch on the ignition and then press
and hold the SET button until you hear a confirmation chime. The chime usually sounds after a couple
of seconds. The SET button must be pressed for at least 2 seconds but no more than 30 seconds
each time the tire pressure in one or more tires has been adjusted or after one or more tires has been
changed, exchanged, or repaired. The new tire pressures are stored in the system only after at least
20 minutes of normal driving.
If you use the SET button to reset the benchmark tire pressure when your tires do not have the correct
tire pressure, this will prevent the TPMS from working properly. It may then give false warnings or may
not give any warning even if the tire pressure is too low.
For this reason, it is vital to make certain that all 4 tires are inflated to the correct pressure
when they are cold before pressing the SET button. Cold tire tires are tires that have not been
driven more than a couple of miles (kilometers) at low speed within the last 3 hours.
Use the SET button to reset the benchmark TPMS pressure in the following situations:
ꢀ After installing tires on your vehicle that have recommended cold tire inflation pressures that are
different from the tires that were taken off.
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