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.
Hill and Mountain Roads
Driving on steep hills or through mountains is different than driving on flat
or rolling terrain. Tips for driving in these conditions include:
Keep the vehicle serviced and in good shape.
Check all fluid levels and brakes, tires, cooling system, and transmission.
Shift to a lower gear whe ...
Additional Factors Affecting System Operation
Safety belts help keep the passenger in position on the seat during vehicle maneuvers
and braking, which helps the passenger sensing system maintain the passenger airbag
status. See “Safety Belts” and “Child Restraints” in the Index for additional information
about the importance of proper res ...
Filling a Portable Fuel Container
Warning
Filling a portable fuel container while it is in the vehicle can
cause fuel vapors that can ignite either by static electricity or other means. You
or others could be badly burned and the vehicle could be damaged. Always:
Use approved fuel containers.
Remove the container from the ...