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.
Spare wheel or compact spare wheel
The spare wheel or compact spare wheel has no tire pressure sensor. When the spare or compact
spare wheel is mounted on the vehicle, the Tire Pressure Monitoring System (TPMS) indicator light will
flash in the instrument cluster display. The TPMS continues to monitor the other 3 wheels.
Tire storage
If the tires do not move for an extended period of time, the sensors will not transmit tire pressures to
the system. This saves sensor battery life. The sensors are reactivated by driving the vehicle again.
WARNING
Incorrect tire pressure can cause sudden tire failure, loss of vehicle control and serious
personal injury.
x Always check and correct air pressure in all 4 tires, particularly after changing,
exchanging, or repairing tires.
x After that, always make sure that all 4 tires are inflated to the correct tire pressure for the
tires installed on the vehicle.
x See the tire pressure label ⇒ fig. 159 and the Owner's Literature for recommended cold
tire inflation pressure and other important information.
x When replacing tires or wheel rims on vehicles equipped with TPMS, always read and
heed all of the information and WARNINGS
NOTICE
x The wheel electronics are attached to special aluminum valves on the wheels. These valves
are screwed on rigidly. Never bend the valves “into position” when checking and adjusting tire
pressure.
x Missing tire air valve caps could result in damage to the valves, as well as to the sensors on
the Tire Pressure Monitoring System. Therefore, make sure your valve caps conform to the
specifications of those originally installed on the vehicle and that they are always tightly and
properly screwed on to the valves. Do not use metallic valve caps
x Do not use “comfort valve caps.” They do not seal properly and can damage the sensors.
x When changing or rotating the tires, be careful not to damage the valves or sensors.
