See also:

Cleaning the Mirror
Do not spray glass cleaner directly on the mirror. Use a soft towel dampened with water. ...

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 ...

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. ...