Tire Pressure Monitor System CTS-V

The Tire Pressure Monitor (TPM) System uses radio and sensor technology to check tire pressure levels. If your vehicle has this feature, sensors are mounted on each run-flat tire and wheel assembly. The TPM sensors transmit tire pressure readings to a receiver located in the vehicle once every 60 seconds while the vehicle is being driven, and once every 60 minutes if the vehicle is stationary for more than 15 minutes. Using the Message Center, tire pressure levels can be viewed by the driver. For additional information about the message center operation and displays, see Message Center .

When a low tire pressure condition is detected, a low tire warning light, on the instrument panel cluster, comes on to warn the driver.

When the tire pressure monitoring system warning light is lit, one or more of your tires is significantly under-inflated.

You should stop and check your tires as soon as possible, and inflate them to the proper pressure as indicated on the vehicle's tire information placard.

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. Each tire, should be checked monthly when cold and set to the recommended inflation pressure as specified in the vehicle placard and owner's manual.

The Tire and Loading Information label (tire information placard) is attached, to either, the center pillar near the driver's door latch post or on the rear edge of the driver's side rear passenger door. The label shows the size of your vehicle's original tires and the correct inflation pressure for your vehicle's tires when they are cold. See Inflation - Tire Pressure and Loading the Vehicle for additional information.

Your vehicle's TPM system can alert you about a low tire pressure condition but it does not replace normal tire maintenance. See Tire Inspection and Rotation and Tires .

Notice: Do not use a tire sealant if your vehicle has Tire Pressure Monitors. The liquid sealant can damage the tire pressure monitor sensors.

TPM Sensor Identification Codes

Each TPM sensor has a unique identification code. Any time you replace one or more of the TPM 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: left front (LF), right front (RF), right rear (RR), and left rear (LR).

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 TPM matching process is outlined below:

1. Set the parking brake.
2. Turn the ignition switch to ON with the engine off.
3. Using the Remote Keyless Entry (RKE) transmitter, lock and unlock the vehicle's doors.
4. Press the lock and unlock buttons, at the same time, on the RKE transmitter. A single horn chirp will sound, indicating that the TPM system is ready, and the sensor matching process can begin.
5. Start with the left (driver's side) front tire.
6. Remove the valve cap from the valve stem. Activate the TPM sensor by increasing or decreasing the tire's air pressure for five seconds, or until a horn chirp sounds. The horn chirp, which may take up to 30 seconds, confirms that the sensor identification code has been matched to this tire position. To decrease the tire's air-pressure use the pointy end of the valve cap, a pencil-style air pressure gage or a key.
7. Proceed to the right (passenger's side) front tire, and repeat the procedure in Step 6.
8. Proceed to the right (passenger's side) rear tire, and repeat the procedure in Step 6.
9. Proceed to the left (driver's side) rear tire, and repeat the procedure in Step 6.
10. After hearing the confirming double horn chirp, for the left rear tire, exit the matching process by turning the ignition switch to OFF.
11. Set all four tires to the recommended air pressure level as indicated on the tire and loading information label.
12. Put the valve caps back on the valve stems.

The TPM system will not function properly if one or more of the TPM sensors are missing or inoperable. If the system detects a missing or inoperable sensor an error message of several dashes - - - will be shown on the message center display. If you have replaced a tire/wheel assembly without transferring the TPM sensors, the error message will be displayed. Once you re-install the TPM sensors, the error message should go off. See your GM dealer for service if all TPM sensors are installed and the error message comes on and stays on.

The TPM system operates on a radio frequency subject to Federal Communications Commission (FCC) Rules and with Industry and Science Canada.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause interference.
2. This device must accept any interference received, including interference that may cause undesired operation.

This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions:

1. This device may not cause interference.
2. This device must accept any interference received, including interference that may cause undesired operation of the device.

Changes or modifications to this system by other than an authorized service facility could void authorization to use this equipment.