See also:

Windshield
For safety, appearance, and the best viewing, keep the windshield clean and clear. • Signs of damage include scratches, cracks, and chips. • Trained dealer technicians can inspect the wi ...

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

Collision/Detection Systems
If equipped, select the Collision/ Detection Systems menu and Park Assist will be displayed. Park Assist This allows the Ultrasonic Parking Assist feature, audible only, to be turned on or off. ...