Key in Ignition Warning

The radio activates the key-in-ignition audible warning as requested by the body control module (BCM). The BCM sends a class 2 message to the radio indicating the chime frequency of a medium rate and a continuous duration. The key-in-ignition warning sounds when the following occurs:

• The ignition switch is OFF.
• The body control module (BCM) determines that the driver's door is open and the signal circuit is low.
• The BCM determines that the key-in-ignition switch is closed and the signal circuit is low.