Key-In-Ignition Warning
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 radio activates the key-in-ignition audible warning as requested by the body control module (BCM). The BCM sends a serial data message to the radio indicating the chime frequency and duration. The key-in-ignition warning sounds when the following occurs:
- The ignition switch is OFF.
- The BCM determines that the driver door is open.
- The BCM determines that the ignition switch is closed.