Cellular and GPS Antennas

Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception.

Cellular reception is required for OnStar to send remote signals to the vehicle.

    See also:

    Transmission Messages
    DIFFERENTIAL HOT, REDUCE SPEED (CTS-V ONLY) This message displays and a chime sounds if the differential fluid temperature exceeds 150°C (300°F). Driving aggressively or at high speeds can ...

    Cigarette Lighter
    There may be a cigarette lighter located under the climate control system, inside the front storage bin. To activate the cigarette lighter, push it into the heating element and let go. The lighte ...

    Blank Display
    This display shows no information. ...