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:

    Automatic EPB Release
    The EPB will automatically release if the vehicle is running, placed into gear, and an attempt is made to drive away. Avoid rapid acceleration when the EPB is applied, to preserve parking brake lini ...

    Vehicle Identification Number (VIN)
    ...

    Remote Keyless Entry (RKE) System Operation (Keyless Access)
    The Keyless Access System transmitter will work up to 60m (195 ft) away. The Keyless Access System locks and unlocks the doors and trunk without pressing the buttons on the keyless access t ...