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:

    Courtesy Lamps
    The courtesy lamps come on automatically when any door is opened and the dome lamp is in the door position. ...

    READY TO LEARN ELECTRONIC KEY # X
    If the vehicle has the keyless access system, this message displays while matching new transmitters to the vehicle. See the keyless access information for Remote Keyless Entry (RKE) System ...

    Recommended Fuel
    If the vehicle has a V6 engine, use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred ...