General Information
For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

See also:
Power Door Locks
On vehicles with power door locks, the switches are
located on the front doors.
(Unlock): Press to unlock the doors.
(Lock): Remove the key from the ignition and press
to lock the doors.
...
Using Universal Home Remote
Press and hold the appropriate button for at least
half of a second. The indicator light will come on
while the signal is being transmitted. ...
Automatic Door Lock
The doors are programmed to automatically lock when the shift lever is moved
out of P (Park).
The automatic door lock feature cannot be disabled. ...
