Lock All Doors

WARNING: This page is about a different car, the 2008 Buick Lucerne. 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 CTD System, if equipped
Indicate all doors are locked on the transmitter LCD - All LCD door segments will appear