Door Ajar Warning
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The chime producer activates the door ajar audible warning as requested by the body control module (BCM). The BCM sends a GMLAN message to the chime producer indicating the chime frequency of a medium rate and continuous duration. The door ajar warning sounds and the appropriate door ajar indicator illuminates in the drivers information center (DIC) when the following occurs:
- The BCM determines that a door (driver door, passenger door, left rear door, right rear door) is open and the signal circuit is low. The IPC also receives a GMLAN message from the BCM indicating the door ajar status.
- The vehicle is not in PARK. The BCM receives a GMLAN message from the engine control module (ECM)/BCM indicating the gear position.