See also:

How OnStar Service Works
Automatic Crash Response, Emergency Services, Crisis Assist, Stolen Vehicle Assistance, Vehicle Diagnostics, Remote Door Unlock, Roadside Assistance, Turn-by-Turn Navigation, and Hands-Free ...

Exterior Mirrors
Premium Trim Shown, Up-Level Similar Mirror Adjustment 1. Press (A) or (B) to select the driver or passenger side mirror. 2. Press the arrows on the control pad to move the mirror up, down, right ...

Automatic Headlamp System
When it is dark enough outside, the automatic headlamp system turns on the headlamps at the normal brightness, along with the taillamps, sidemarker, parking lamps, and the instrument panel l ...