1997 GMC Sonoma Owner's Manual - Page 53

Side Access Panel (ExtendedCab) Power Door Locks (If Equipped) If your vehicle has power door locks, the switch is located on the armrest. Press LOCK to lock all the doors at once. Your vehicle may be equipped with a side accesspanel for convenience in loading and unloading cargo. It is recommended that passengers who sit in the rear jump seat enterand exit through the door on the passenger's side. To unlock the doors, press the raised area next to the key symbol. Leaving Your Vehicle If you are leavingthe vehicle, take your keys, open your door and set the locks from inside. Then get out and close the door. To open the side access panel, first open the driver's front door. Then, use the handle on the panel to open it. You must close the side access panel before you can close the driver's door. 2-5