Owner's Manual Tire Pressure Sensor Learn
TIRE PRESSURE MONITOR OPERATION
This vehicle may have a Tire Pressure Monitor System (TPMS). The TPMS is designed to warn the driver when a low tire pressure condition exists. TPMS sensors are mounted onto each tire and wheel assembly on your vehicle, excluding the spare tire. The TPMS sensors monitor the air pressure in your tires and transmit the tire pressure readings to a receiver located in the vehicle.
When a low tire pressure condition is detected, the TPMS illuminates the low tire pressure warning light located on the instrument cluster.
If the warning light comes on, stop as soon as possible and inflate the tires to the recommended pressure shown on the tire loading information label.
A message to check the pressure in a specific tire displays in the Driver Information Center. Driver Information Center low tire pressure warning light and the Driver Information Center warning message come on at each ignition cycle until the tires are inflated to the correct inflation pressure.
The low tire pressure warning light may come on in cool weather when the vehicle is first started, and then turn off as the vehicle is driven. This could be an early indicator that the air pressure is getting low and needs to be inflated to the proper pressure.
A Tire and Loading Information label shows the size of the original equipment tires and the correct inflation pressure for the tires when they are cold.
Your vehicle's TPMS can warn you about a low tire pressure condition but it does not replace normal tire maintenance.
Notice: Tire sealant materials are not all the same. A non-approved tire sealant could damage the TPMS sensors. TPMS sensor damage caused by using an incorrect tire sealant is not covered by the vehicle warranty. Always use only the GM-approved tire sealant included in the vehicle.
TPMS Malfunction Light and Message
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 pressure warning light flashes for about one minute and then stays on for the remainder of the ignition cycle. A Driver Information Center warning message also displays. The malfunction light and Driver Information Center warning message come on at each ignition cycle until the problem is corrected. Some of the conditions that can cause these to come on are:
• One of the road tires has been replaced with the spare tire. The spare tire does not have a TPMS sensor. The malfunction light and the Driver Information Center message should go off after the road tire is replaced and the sensor matching process is performed successfully. Refer to "TPMS Sensor Matching Process" later in this section.
• The TPMS sensor matching process was not done or not completed successfully after rotating the vehicle's tires. The malfunction light and the Driver Information Center message should go off once the TPMS sensor matching process is performed successfully. Refer to "TPMS Sensor Matching Process" later in this section.
• One or more TPMS sensors are missing or damaged. The malfunction light and the Driver Information Center message should go off when the TPMS sensors are installed and the sensor matching process is performed successfully.
• Replacement tires or wheels do not match the original equipment tires or wheels. Tires and wheels other than those recommended could prevent the TPMS from functioning properly.
• Operating electronic devices or being near facilities using radio wave frequencies similar to the TPMS could cause the TPMS sensors to malfunction.
If the TPMS is not functioning properly, it cannot detect or signal a low tire condition. Service your vehicle if the TPMS malfunction light and Driver Information Center message 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 vehicle�s tires or replacing one or more of the TPMS sensors. Also, the TPMS sensor matching process should be performed after replacing a spare tire with a road tire containing the TPMS sensor. The malfunction light and the Driver Information Center message 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.
There is one minute 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 procedure is:
1. Set the parking brake.
2. Turn the ignition to ON/RUN with the engine off.
3. Turn the exterior lamp switch from AUTO to OFF four times within three seconds. A double horn chirp will sound and the TPMS low tire warning light starts flashing. The double horn chirp and flashing TPMS warning light indicates the TPMS matching process has started. The TPMS warning light should continue flashing throughout the matching procedure. The LOW TIRE message displays on the Driver Information Center.
4. Start with the driver side front tire.
5. Place the relearn tool against the tire sidewall, near the valve stem. Then press the button to activate the TPMS sensor. A horn chirp confirms that the sensor identification code has been matched to this tire and wheel position.
6. Proceed to the passenger side front tire, and repeat the procedure in Step 5.
7. Proceed to the passenger side rear tire, and repeat the procedure in Step 5.
8. Proceed to the driver side rear tire, and repeat the procedure in Step 5.
9. After hearing the confirming horn chirp for the driver side rear tire, check to see if the TPMS low tire warning light and the Driver Information Center LOW TIRE messages have turned off. If yes, the TPMS sensors have been relearned. Turn the ignition switch to LOCK/OFF.
If the low tire warning light and the SERV TPM message on the Driver Information Center are on after completing Step 5 for the driver side rear tire, the sensor relearn process has not been successful. Turn the ignition to LOCK/OFF and repeat the matching process beginning with Step 2.
10. Set all four tires to the recommended air pressure level as indicated on the Tire and Loading Information label.