See also:

Automatic Dimming Mirror
If the vehicle has the automatic dimming mirror, the driver outside mirror automatically adjusts for the glare of headlamps behind you. ...

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. (Unloc ...

Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfer ...