The TPMS will not function properly if one or more of the TPMS sensors are missing or inoperable. When the system detects a malfunction, the low tire warning light flashes for about one minute and then stays on for the remainder of the ignition cycle. The malfunction light comes on at each ignition cycle until the problem is corrected. Some of the conditions that can cause this to come on are:
If the TPMS is not functioning properly, it cannot detect or signal a low tire condition. See your dealer for service if the TPMS malfunction light comes on and stays on.
TPMS Sensor Matching Process
Each TPMS sensor has a unique identification code. The identification code needs to be matched to a new tire/wheel position after rotating the tires or replacing one or more of the TPMS sensors. The TPMS sensor matching process should also be performed after replacing a spare tire with a road tire containing the TPMS sensor. The malfunction light should go off at the next ignition cycle. The sensors are matched to the tire/wheel positions, using a TPMS relearn tool, in the following order: driver side front tire, passenger side front tire, passenger side rear tire, and driver side rear.
See your dealer for service or to purchase a relearn tool. A TPMS relearn tool can also be purchased.
See Tire Pressure Monitor Sensor Activation Tool at www.gmtoolsandequipment.com or call 1-800-GM TOOLS (1-800-468-6657).
There are two minutes to match the first tire/wheel position, and five minutes overall to match all four tire/wheel positions. If it takes longer, the matching process stops and must be restarted.
The TPMS sensor matching process is:
The horn sounds twice to signal the receiver is in relearn mode and the TIRE LEARN message displays on the DIC screen.
A horn chirp confirms that the sensor identification code has been matched to this tire and wheel position.
Exit Lighting
If the dome lamps are in the DOOR position, they come on automatically when the
key is removed from the ignition. The exterior lamps and dome lamps remain on after
the door is closed for a set amount of time, then automatically turn off.
The headlamps, parking lamps, and back-up lamps will turn ...
Antilock Brake System (ABS)
This vehicle has ABS, an advanced electronic braking system that helps prevent
a braking skid.
When the vehicle begins to drive away, ABS checks itself.
A momentary motor or clicking noise might be heard while this test is going on,
and it might even be noticed that the brake pedal moves a lit ...
Doing Your Own Service Work
Warning
It can be dangerous to work on your vehicle if you do not have
the proper knowledge, service manual, tools, or parts. Always follow owner manual
procedures and consult the service manual for your vehicle before doing any service
work.
If doing some of your own service work, use the p ...