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:

    Securing the Child Within the Child Restraint
    WARNING A child can be seriously injured or killed in a crash if the child is not properly secured in the child restraint. Secure the child properly following the instructions that came with that ...

    Short Take: Cadillac CTS Sport Wagon
    When the national dalliance with SUVs seemed to put the entire country in a knobby-tired trance, we muttered to ourselves: Why would anyone want to ruin a perfectly good wagon by giving it a high ...

    Approach Lighting
    This feature allows you to select whether or not to have the exterior lights turn on briefly during low light periods after unlocking the vehicle using the Remote Keyless Entry (RKE) or keyl ...