2003 GMC Sonoma Owner's Manual - Page 83

Power Door Locks Programmable Automatic Door Locks If your vehicle has power door locks, it will be equipped with an auto IocWunlock feature which enables you to program your vehicle's power door locks. The following is a list of the available programming options: All doors IocWOnly the driver's door unlocks: Press the lock side of the power door lock switch once and then the unlock side once. If your vehicle is not equipped with remote keyless entry, you may not be able to utilize this option. All doors IocWAll doors unlock: Press the lock side of the power door lock switch once, and then the unlock side twice. All doors IocWNone of the doors unlock: Press the lock side of the power door lock switch once, and then the unlock side three times. No doors IocWNone of the doors unlock: Press the lock side of the power door lock switch twice. This turns off the automatic lock feature. This is the factory setting. For more information, see your dealer. 2-8 If your vehicle has power door locks, the switch is located on the armrest. Remove the ignition key and press LOCK to lock all the doors at once. To unlock the doors, press the raised area next to the key symbol.