2003 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 96

Power Door Locks I If your vehicle has this power door lock switch, press the raised side of the switch, with the lock symbol, on either front door to lock all the doors at once. power door lock switch, press the bottom of the switch on either front door to lock all the doors at once. Press the recessed side of the switch with the unlock symbol, to unlock all the doors at once. Press the top of the switch to unlock all the doors at once. The power door locks will operate at any time even when the ignition is off. The power door locks will also automatically lock when the vehicle is out of PARK (P), or for manual transmission, when the vehicle reaches 8 mph (24 km/h). To unlock the doors, refer to the instructions listed previously. The automatic locking feature can be disabled, if you prefer. See Programmable Automatic Door Locks on page 2-10 in the following text. Operating the power locks may interact with the theft-deterrent system (if equipped). See Content Theft-Deterrent on page 2- 18. 2-9