Operation CHARM: Car repair manuals for everyone.

Panic Alarm

The panic alarm is an alarm system that you can trigger by pressing the panic button on the remote control door lock transmitter. This sends a Class 2 serial data message to the BCM which triggers the panic alarm. The parklamps and the horn alternately cycle on and off for up to 2 minutes. If you turn the ignition switch to the ON position or if you press the panic button while the panic alarm is active, the alarm immediately turns off. If you request the remote control door lock receiver horn chirp while the panic alarm is triggered, the chirp request is ignored.