Lights On Audible Chime
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The BCM will provide an audible chime if the park lights are ON and the drivers door open. In addition 1 of 2 other conditions exists. The key is out of the ignition or the key is in the ignition at the OFF position and has not been turned. The BCM will chime at a rate of 200 chimes per minute until the conditions are removed.