Roof

See also:

Lumbar Adjustment
Lumbar Adjustment If available, press and hold the front or rear of the control to increase or decrease lumbar support. To raise or lower lumbar support, press and hold the top or bottom of ...

Compass
The vehicle may have a compass display on the Driver Information Center (DIC). The compass receives its heading and other information from the Global Positioning System (GPS) antenna, Stabil ...

Automatic Crash Response
In a crash, built in sensors can automatically alert an OnStar advisor who is immediately connected to the vehicle to see if you need help. ...