Trunk Ajar Operation
WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
The body control module (BCM) receives a discrete input from the trunk ajar switch to indicate the status of the trunk. The BCM then communicates this status to the instrument panel cluster (IPC) via GMLAN serial data. The IPC, upon receipt of this message, will illuminate the trunk ajar message in the driver information center (DIC) and also send a GMLAN serial data message to the radio to activate the trunk ajar audible warning when the following conditions are met:
- The transaxle is shifted from PARK.
- The vehicle speed is greater than 8 km/h (5 mph).