Lock All Doors

WARNING: This page is about a different car, the 2002 GMC Safari and 2002 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

Press the LOCK button in order to perform the following functions:

Lock all of the doors.
Immediately turn off the interior lamps.
Flash the headlamps, if selected ON in personalization.
Chirp the horn, if selected ON in personalization.
Arm the content theft deterrent (CTD) system.