1997 Buick Regal Owner's Manual - Page 81

Power Door Locks Press the power door lock switch to lock or unlock all doors. Lockout Prevention Feature This feature prevents driver who has left the key in a the vehicle's ignition from lockingthe doors by using the power door locks whileany door is open. The feature worksby disabling the power door locks when a key is in the ignition and any door is open. You may override the Lockout Prevention Feature by holding the power door lock switch in the lock position for more than three seconds while the is in the key ignition and any door is open. Remember, this feature can't guarantee that you'll never be locked out of your vehicle.If you use the manual door lockor if you don't leavethe key in the ignition, you could still lock your keys inside your vehicle. Always remember to take your keys with you. The rear doors do not have power door lock switches. The lever on each rear doorworks only that door's lock. It won't lock or unlock all the doors.