Lock All Doors

WARNING: This page is about a different car, the 2009 GMC Canyon and 2009 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.

Press the transmitter LOCK button to perform the following functions:

Lock all vehicle doors
Immediately turn OFF the interior lamps
Flash the exterior lights, if enabled through personalization
Chirp the horn, if enabled through personalization
Arm the content theft deterrent (CTD) system, if equipped