TIRE PRESSURE MONITOR SYSTEM
The Tire Pressure Monitor System (TPMS)
uses radio and sensor technology to check tire pressure levels. If your vehicle
has this feature, sensors are mounted on each tire and wheel assembly, except
. The TPMS sensors monitor the air pressure in your vehicle's tires
and transmit tire pressure readings to a receiver located in the
The TPMS is designed to alert the driver, if a low tire pressure
condition exists. This system also allows the driver to check tire pressure
levels using the Driver Information Center (DIC).
When a low tire
pressure condition is detected, the TPMS displays the "CHECK TIRE PRESSURE"
warning message on the DIC, and at the same time illuminates the low tire
pressure warning symbol.
You may notice, during cooler weather
conditions, that the tire pressure monitor light, located on the instrument
panel cluster, and the "CHECK TIRE PRESSURE" message will appear when the
vehicle is first started and then turn off as you start to drive the vehicle.
This could be an early indicator that the tire pressures are getting low and
need to be inflated to the proper pressure.
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 inflation pressure for
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 under-inflated.
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 under-inflated tire causes the tire to overheat and can lead to
tire failure. Under-inflation also reduces fuel efficiency and tire tread life,
and may affect the vehicle's handling and stopping ability.
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
under-inflation has not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
The "CHECK TIRE PRESSURE" warning message and
low tire pressure light (telltale) will appear at each ignition cycle until the
are inflated to the correct inflation pressure.
The Tire and Loading
Information label (tire information placard) shows the size of your vehicle's
and the correct inflation pressure for your vehicle's tires when they are
Your vehicle's TPMS can alert you about a low tire pressure
condition but it does not replace normal tire maintenance
Do not use a tire sealant if your vehicle has Tire Pressure Monitors. The liquid
sealant can damage the tire pressure monitor sensors.RESETTING THE
TPMS IDENTIFICATION CODES
Each TPMS sensor has a unique identification
code. Any time you rotate your vehicle's tires
or replace one or more of the TPMS sensors, the identification codes will need
to be matched to the new tire/wheel position. Each tire/wheel position is
matched to a sensor, by increasing or decreasing the tire's air pressure. The
sensors are matched to the tire/wheel positions in the following order: LF TIRE
(left front tire on the driver's side of the vehicle), RF TIRE (right front tire
on the passengers side of the vehicle), RR TIRE (right rear tire on the
passengers side of the vehicle), and LR TIRE (left rear tire on the driver's
side of the vehicle).
You will have one minute to match the first
tire/wheel position, and five minutes overall to match all four tire/wheel
positions. If it takes longer than one minute, to match the first tire and
wheel, or more than five minutes to match all four tire and wheel positions the
matching process stops and you will need to start over.
The TPMS sensor
matching process is outlined below:
- Set the parking brake.
- Turn the ignition switch to "RUN" with the engine off.
- Turn the headlamp switch from "OFF" to the parking lamps setting four times
within three seconds. A double horn chirp will sound and the TPMS low tire
warning light will begin to flash. The double horn chirp and flashing TPMS
warning light indicate that the TPMS matching process has started. The TPMS
warning light should continue flashing throughout the matching procedure. The
"SERVICE TIRE MONITOR" message will be displayed on the Driver Information
- Start with the driver's side front tire.
- Remove the valve cap from the valve cap stem. Activate the TPMS sensor by
increasing or decreasing the tire's air pressure for 10 seconds, then stop and
listen for a single horn chirp. The single horn chirp should sound within 15
seconds, confirming that the sensor identification code has been matched to this
tire and wheel position. If you do not hear the confirming single horn chirp,
you will need to start over with Step 1. To let air-pressure out of a tire you
can use the pointed end of the valve cap, a pencil-style air pressure gage or a
- Proceed to the passenger's side front tire, and repeat the procedure in Step
- Proceed to the passenger's side rear tire, and repeat the procedure in Step
- Proceed to the driver's side rear tire, and repeat the procedure in Step 5.
- After hearing the confirming horn chirp for the left rear tire, check to see
if the TPMS warning light is still flashing. If it is, turn the ignition switch
to LOCK to exit the sensor matching process. If the TPMS warning light is not
flashing, the five minute time limit has passed and you will need to start the
process over beginning with Step 1.
- Set all four tires
to the recommended air pressure level as indicated on the Tire and Loading
- Put the valve caps back on the valve stems. The spare
tire does not have a TPMS sensor. If you replace one of the road tires
with the spare, the "CHECK TIRE PRESSURE" message will be displayed on the DIC
screen. This message should go off once you re-install the road tire containing
the TPMS sensor. The "SERVICE TIRE MONITOR" message is displayed when the TPMS
is malfunctioning. One or more missing or inoperable TPMS sensors will cause the
service tire monitor message to be displayed.