Lights On Chime
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
The body control module (BCM) will activate an audible warning as a reminder that the headlamps are left ON when exiting the vehicle with the ignition switch in the OFF position. The lights ON warning sounds at the rate of 150 pulses per minute, fast rate chime, until the headlamp switch is turned OFF. The BCM receives a signal from the headlamp and panel dimmer switch via the headlamp relay. The BCM activates the lights on warning chime when the following occurs:
- The ignition is OFF.
- The park lamp switch input is active.
- The dimming potentiometer input is not in a maximum dimming state.