See also:

Compass
There is a compass display in the Driver Information Center (DIC). The compass receives its heading and other information from the Global Positioning System (GPS) antenna, StabiliTrak, and vehicle ...

Endless entertainment options
Terraza is offered with a wide choice of passenger entertainment features, which can be a welcome addition on long trips while giving owners the ability to interface between the vehicle and one's ...

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. ...