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198
SAFETY
•
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.
•
The TPMS is not a substitute for proper tire mainte-
nance, and it is the driver's responsibility to main-
tain correct tire pressure using an accurate tire
pressure gauge, even if underinflation has not
reached the level to trigger illumination of the TPMS
Warning Light.
•
Seasonal temperature changes will affect tire pres-
sure, and the TPMS will monitor the actual tire pres-
sure in the tire
page 302.
System Operation
The Tire Pressure Monitoring System (TPMS) uses wire-
less technology with wheel rim mounted electronic sen-
sors to monitor tire pressure levels. Sensors, mounted
to each wheel as part of the valve stem, transmit tire
pressure readings to the receiver module.
Tire Pressure Monitoring System Display
NOTE:
It is particularly important for you to check the tire pres-
sure in all of the tires on your vehicle monthly and to
maintain the proper pressure.
The TPMS consists of the following components:
•
Receiver module
•
Four Tire Pressure Monitoring System sensors
•
Various Tire Pressure Monitoring System messages,
which display in the instrument cluster
•
Tire Pressure Monitoring System Warning Light
TIRE PRESSURE MONITORING LOW PRES-
SURE WARNINGS
The TPMS Warning Light will illuminate in the
instrument cluster and a chime will sound
when tire pressure is low in one or more of
the four active road tires. In addition, the
instrument cluster will display a "Tire Low" message for
a minimum of five seconds, an "Inflate to XX" message
and a graphic showing the pressure values of each tire
with the low tire pressure values in a different color.
Tire Pressure Monitoring System Low Pressure Warning
Should this occur, you should stop as soon as possible
and inflate the tires with low pressure (those in a differ-
ent color in the instrument cluster graphic) to the vehi-
cle's recommended cold placard pressure value as
shown in the "Inflate to XX" message. Once the system
receives the updated tire pressures, the system will
automatically update, the pressure values in the
graphic display in the instrument cluster will return to
their original color, and the TPMS Warning Light will
turn off.
NOTE:
When filling warm tires, the tire pressure may need to
be increased up to an additional 4 psi (28 kPa) above
the recommended cold placard pressure in order to
turn the TPMS Warning Light off.The vehicle may need
to be driven for up to 20 minutes above 15 mph
(24 km/h) in order for the TPMS to receive this
information.
SERVICE TPMS WARNING
When a system fault is detected, the TPMS Warning
Light will flash on and off for 75 seconds and then
remain on solid. The system fault will also sound a
chime. In addition, the instrument cluster will display a
"SERVICE TIRE PRESSURE SYSTEM" message for a mini-
mum of five seconds and then display dashes (- -) in
place of the pressure value to indicate which sensor is
not being received.
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