1993 Cadillac DeVille Owner's Manual - Page 75

Power Door Locks Push the lower part of the switch marked "LOCK" to lock all the doors at once. Push the upper part the of switch to unlock all the doors. I On four-doormodels, the switch on each rear door locks all the doors. It won't unlock anyof the doors-- that's a safety feature. Automatic Door Locks Just close your doors, turn onthe ignition. Every timeyou move your shift lever out of "P" (Park) all of the doors will lock. And, every time you stop and move your shift leverinto "P77 (Park), your doors will unlock. If have that person someone needsto get outwhile you'renot in "P7' (Park), use the manualor power lock.When the dooris closed again, it will not lock automatically. Just use the manual or power lock to lock the door again. 62