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 Lighting
The exterior lamp control is located toward the end of the turn signal/lane change lever. : Turn the band with this symbol on it to operate the exterior lamps. The exterior lamp control h ...

Finding a Station
AM Source Shown, Other Sources Similar If viewing a map screen, press the source screen (AM, FM, XM (if equipped), CD, etc.) button. The display splits between the audio screen and the map screen ...