Lights On Warning
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
The body control module (BCM) activates the lights ON warning as requested by the headlamp dimmer switch. The lights ON warning sounds when all of the following occurs:
- The ignition key is out of the ignition.
- The BCM determines that the driver door is open.
- The BCM determines that the headlamp switch is in the PARK or HEAD position.