Lock All Doors

WARNING: This page is about a different car, the 2013 Buick Regal. 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 and/or sound the horn; this is customized through the DIC.
Arm the content theft deterrent system.