When a problem is detected, the warning lamp will illuminate or flash. A text message will be displayed. Until the fault is rectified, the warnings will be repeated each time the ignition is switched on.
Driving through variable climatic conditions can affect tyre pressures. This in turn may promote intermittent TPM system warnings.
If all four road wheels and tyres are replaced with non TPM system wheels, e.g., a set of winter wheels and tyres, the message TYRE PRESSURE MONITORING UNAVAILABLE will be displayed. When the original wheels are refitted, the vehicle will need to travel a short distance before the TPM system recognises the wheel sensors. At that point, TYRE PRESSURE MONITORING AVAILABLE will be displayed.
The system will automatically recognise any changes in wheel positions. The vehicle must be stationary for 15 minutes during a wheel change to allow the system to detect the change. See 208, CHANGING A ROAD WHEEL.
After driving above 25km/h (18mph), any deflation warning should clear within a few minutes.
If a non TMP system temporary spare wheel is fitted, the system will automatically recognise the change in wheel positions. After approximately 10 minutes of driving above 25km/h (18mph), the message FRONT (REAR) RIGHT(LEFT) TYRE PRESSURE NOT MONITORED will be displayed, accompanied by illumination of the warning lamp.
The warning lamp will first flash and then illuminate continuously. Extended use of the temporary spare wheel will trigger the message TYRE PRESSURE MONITORING SYSTEM FAULT.
This TPM system display sequence will be activated at every ignition cycle, until the temporary spare wheel is replaced by a full size TPM system road wheel.
Note: If in use, always replace the temporary spare wheel before having a TPM system fault investigated.
If any message fails to clear after rectifying the fault, consult your Dealer/ Authorised Repairer.