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.

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    What to Use
    Refer to Recommended Fluids and Lubricants   to determine what kind of lubricant to use. ...

    Vehicle Speed Messages
    ICE POSSIBLE DRIVE WITH CARE This message displays when the outside temperature is cold enough to create icy road conditions. Adjust your driving accordingly. SPEED LIMITED TO XXX KM/H (MPH ...

    Traction – AA, A, B, C
    The traction grades, from highest to lowest, are AA, A, B, and C. Those grades represent the tire's ability to stop on wet pavement as measured under controlled conditions on specified g ...