Power Door Locks
Press 
or
on the Remote Keyless Entry (RKE) transmitter.
See Remote Keyless Entry (RKE) System Operation .
Premium Trim Shown, Up-Level Similar
(Lock): Press to lock the doors.
(Unlock): Press to unlock the doors.
See also:
Battery Power Protection
This feature shuts off the dome lamps if they are left on for more than 10 minutes
when the ignition is in LOCK/OFF. This helps to prevent the battery from running
down. ...
Warranty
OnStar equipment may be
warranted as part of the new-vehicle
limited warranty. The manufacturer
of the vehicle furnishes detailed
warranty information. ...
Return to Factory Settings
Select Return to Factory Settings to return all of the vehicle
personalization to the default settings. Turn the knob to select Yes or No.
Press the knob to confirm and go back to the last menu. ...