See also:

New Vehicle Break-In
Notice: The vehicle does not need an elaborate break-in. But it will perform better in the long run if you follow these guidelines: Do not drive at any one constant speed, fast or slow, for the ...

Multi-Band Antenna
The multi-band antenna is on the roof of the vehicle. The antenna is used for the AM-FM radio, OnStar, the XM Satellite Radio Service System, and GPS (Global Positioning System), if the vehicle ha ...

Roadside Assistance and OnStar
If you have an active OnStar subscription, press the Q button and the current GPS location will be sent to an OnStar Advisor who will assess your problem, contact Roadside Assistance, and relay y ...