Wheels With Sensors For TPM

Before changing wheels (e.g. changing from summer to winter wheels), check that the wheels are compatible with the vehicle's tire pressure monitoring (TPM) system.

The TPM system as of 2009 model  (2nd generation TPM) is essentially different from the TPM system up to 2008 model  (1st generation TPM).

1st generation TPM wheel electronics -A-  are not compatible with 2nd generation TPM wheel electronics.

Fig 1: Identifying Wheel Electronics

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

If wheels with 1st generation TPM wheel electronics are fitted on a vehicle with 2nd generation TPM wheel electronics (or vice versa), the TPM system will not recognize the wheel electronics. The TPM system is not active and a corresponding warning message appears in the instrument cluster.

In addition, the wheel electronics are reported as defective in the fault memory of the TPM control unit.