Lock-Out Prevention
WARNING: This page is about a different car, the 2002 Chevrolet Monte Carlo, 2002 Chevrolet Impala, 2001 Chevrolet Monte Carlo, and 2001 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
This function is intended to prevent vehicle operator from locking doors if key is left in ignition and any vehicle door is open. BCM will react after locking all doors by unlocking driver door. Lock-out prevention function can be overridden by manually locking door.