See also:

Automatic Door Locks
For vehicles with an automatic transmission, the doors will lock automatically when all doors are closed, the ignition is on, and the shift lever is moved out of P (Park). The doors will auto ...

Door Locks (Sedan and Wagon)
WARNING! Unlocked doors can be dangerous. - Passengers, especially children, can easily open the doors and fall out of a moving vehicle. When a door is locked, the handle will not open i ...

Service Bulletins
Service Bulletins give additional technical service information needed to knowledgeably service General Motors cars and trucks. Each bulletin contains instructions to assist in the diagnosis ...