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:

    Reading Lamps
    The reading lamps are located on the overhead console. These lamps come on automatically when any door is opened. For manual operation, press the button next to each lamp to turn it on or o ...

    Checking Coolant
    The vehicle must be on a level surface when checking the coolant level. The engine coolant reservoir is located in the engine compartment on the driver side of the vehicle. See Engine Compar ...

    SUSPENSION MODE SPORT (CTS-V ONLY)
    This message will be displayed when sport mode is selected using the Magnetic Ride Control button in the center of the instrument panel. See Magnetic Ride Control for more information. ...