Tire Monitoring System: Service and Repair

Tire Pressure Indicator Sensor Learn

Learn Mode Description

The tire pressure monitor system uses the following systems to perform the tire pressure monitor learn mode functions:

- 4 tire pressure monitor sensors
- Remote function actuator
- Auto learn module
- Body Control Module (BCM)
- Driver information center
- Instrument Panel Cluster
- Serial data circuit

Tire pressure monitoring, programming procedure (not US)

After any tire rotation or component replacement the tire pressure monitor system will automatically learn the values in the following way:

- Wait 18 min. before moving/driving the car.
- Drive over 20 km/h (15 MPH) for 9 min. cumulative driving during one ignition ON cycle (until the indicator in instrument panel cluster is turned off, if being on).

During a learn procedure it can happen that the driver information center first shows "last known pressure values" from the previous tire setting, then dashes, then the actual pressure values for the new tire setting.

If the tire pressure monitor system does not accept the new sensor make a new drive after 18 min. still stand with ignition off (key out). Sometimes the reception of the sensor signal can have been disturbed along the road due to different reasons.

Tire pressure monitoring, programming procedure US

After changing tire positions or after tire replacement, program the tire pressure monitoring system as follows:

Note
Make sure that the tire pressures are as recommended.
Refer to the vehicle owners manual.

1. Apply the handbrake and put the gear selector in position P.
2. Turn the ignition switch to ON.
3. Press the MENU button and select the Vehicle information menu.
4. Turn the settings knob and select Pressure monitoring system
5. Push in the SET/CLR button and keep it depressed for 3 seconds to start the matching procedure for the tire pressure sensors. The message "Are you certain that you want to start the procedure?" will be displayed.
6. Press in the SET/CLR button again to confirm the selection. The car horn sounds twice and the blinkers flash to indicate that the tire pressure monitoring receivers are in the programming mode. The message "Tire pressure programming active" appears on the driver information display.
7. Begin with the front tire on the driver's side.
8. Remove the valve cap from the valve. Activate the TPMS sensor by either increasing or decreasing the tire pressure for five seconds or until the horn sounds. It can take up to 30 seconds until the horn sounds. The horn signal confirms that the sensor identification code has been matched with that tire and tire position.
9. Proceed to the front tire on the passenger's side and repeat the procedure in point 8.
10. Proceed to the rear tire on the passenger's side and repeat the procedure in point 8.
11. Proceed to the rear tire on the driver's side and repeat the procedure in point 8. The horn sounds twice to indicate that the sensor identification code has been matched to the rear tire on the driver's side. The TPMS sensor matching is then no longer active. The "Tire pressure programming active" message is then removed from the driver information display.
12. Turn the key OFF.
13. Readjust the tire pressures to the recommended values.
14. Replace the valve caps on the valves.