Lock All Doors

WARNING: This page is about a different car, the 2008 Cadillac SRX. 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.