GM Service Manual Online
For 1990-2009 cars only

Door Ajar Indicator

The driver information center (DIC) located at the bottom of the instrument panel cluster (IPC), illuminates the LEFT DOOR AJAR or RIGHT DOOR AJAR indicator when the body control module (BCM) detects that one of the doors is open. The IPC receives a class 2 message from the BCM indicating the door ajar status. If this message is displayed and the vehicle speed is greater than 3 mph, a chime will sound.