Theater Dimming
WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.
The BCM dims the interior courtesy lights slowly from a full brightness to the OFF position in 3 seconds. This feature starts anytime the BCM is turning off the interior courtesy lights.
Theater dimming does not work when turning the dimmer switch from the DOME position to the OFF position or when the illumination feature is cancelled by locking the doors with a power door lock switch. Also, theater dimming does not work when the exit illumination feature is disabled.