See also:

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. ...

OnStar®
If the vehicle is equipped with an active OnStar system, that system may also record data in crash or near crash-like situations. The OnStar Terms and Conditions provides information on data ...