Multi-Band Antenna

The antenna located on the roof of the vehicle is used for the OnStar, XM Satellite Radio Service System, and GPS (Global Positioning System), if the vehicle has these features. Keep the antenna clear of obstructions for clear reception.

If the vehicle has a sunroof and it is open, the performance of OnStar, XM, and GPS can be affected.

    See also:

    Limit Features While Driving
    The navigation system may have this feature. Touch the Limit Features While Driving screen button to turn the ability to limit functions on and off while driving. When this screen button is highli ...

    Safety
    Side-impact airbags are installed in the seats. The seat belts have powered pretensioners. Four-channel all-disc antilock brakes, traction control and a stability system are standard. ...

    Store a Name Tag for Speed Dialing
    1. Push . System responds: “OnStar ready.”. 2. Say “Store.” System responds: “Please say the number you would like to store.”. 3. Say the entire number without pausing. System responds: “Plea ...