System Operation
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
The vehicle horn system is activated under the following conditions:
- The horn switch is depressed.
- The body control module (BCM) commands the horns on. The BCM commands the horns on under any of the following conditions:
- When the content theft deterrent system detects a vehicle intrusion. For further information refer to CONTENT THEFT DETERRENT (CTD) DESCRIPTION AND OPERATION in Theft Deterrent.
- When the panic button is depressed on the remote control door lock transmitter. For further information refer to KEYLESS ENTRY SYSTEM DESCRIPTION AND OPERATION in Keyless Entry.
- When the OnStar(R) system is used to sound the horns (if equipped.) For further information refer to ONSTAR DESCRIPTION AND OPERATION .
- When the lock button on the keyless entry transmitter is pressed twice within 5 seconds, a horn chirp will sound to notify the driver that the vehicle has been locked. For further information refer to KEYLESS ENTRY SYSTEM DESCRIPTION AND OPERATION in Keyless Entry.