Lights On Warning

The chime producer activates the lights on warning as requested by the body control module (BCM). The BCM sends a class 2 message to the chime producer indicating the chime frequency (fast rate) and duration (continuous). The lights on warning sounds when the following occurs:

• The ignition is OFF.
• The BCM determines that the driver's door is open and the signal circuit is low.
• The BCM determines that the headlamp switch is in the park or head position.