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:

    Tire Pressure Light
    For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS. When the Light Is ...

    Checking Brake Fluid
    Check brake fluid by looking at the brake fluid reservoir. See Engine Compartment Overview  . The fluid level should be above MIN. If it is not, have the brake hydraulic system checked to ...

    Infotainment
    Read the following pages to become familiar with the audio system's features. WARNING! Taking your eyes off the road for extended periods could cause a crash resulting in injury or death t ...