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:

    Pulling a Trailer
    Here are some important points: - There are many laws, including speed limit restrictions that apply to trailering. Check for legal requirements. - Do not tow a trailer at all during the first ...

    Off-Road Driving
    All-wheel-drive vehicles can be used for off-road driving. Vehicles without all-wheel drive and vehicles not equipped with All Terrain (AT) or On-Off Road (OOR) tires must not be driven off-road e ...

    Calling for Service
    When calling Roadside Service, have the following information ready: Your name, home address, and home telephone number. Telephone number of your location. Location of the vehicle. Model, ye ...