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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    Lamps On Reminder
    For vehicles with the lamps on reminder light, it comes on when the lights are in use. ...

    If the HUD Image Is Not Clear
    • Is the HUD image too bright? • Are the windshield and HUD lens clean? If the HUD image is not correct, contact your dealer. Keep in mind that the windshield is part of the HUD system. ...

    What to Use
    WARNING: Adding only plain water to the cooling system can be dangerous. Plain water, or some other liquid such as alcohol, can boil before the proper coolant mixture will. The vehicle’s cool ...