CUSTOMER CONCERN The remote will not lock or unlock the doors, and the key will not turn in the ignition. CAUSE The remote LED did not illuminate when its buttons were pressed. Battery testing confirmed the key battery was good, isolating the failure to the ignition key transmitter. CORRECTION Remove and replace the failed ignition key transmitter.

CUSTOMER CONCERN The AIRMATIC warning is displayed and fault 5172 is stored for pressure sensor Y36b1. CAUSE Live-data testing confirmed failure of the internal pressure sensor in the AIRMATIC valve-block assembly. CORRECTION Remove and replace the failed AIRMATIC valve-block assembly.