Buick LaCrosse: Cellular and GPS Antennas - OnStar Additional Information - OnStar - Buick LaCrosse Owners ManualBuick LaCrosse: 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.

    Global Positioning System (GPS)
    • Obstruction of the GPS can occur in a large city with tall buildings; in parking garages; around airports; in tunnels, underpasses, or parking garages; or in an area with very dense tr ...

    Unable to Connect to OnStar Message
    If there is limited cellular coverage or the cellular network has reached maximum capacity, this message may come on. Push to try the call again or try again after driving a few miles into ...

    See also:

    Anti-freeze
    In the winter when it is anticipated that the temperature will drop below 32°F (0°C), check the anti-freeze to assure proper winter protection. For details, see “Engine cooling system” in the ...

    Manual shift mode (if so equipped)
    When the shift selector is in the Ds (Drive Sport) position, the transmission is ready for the manual shift mode. Shift ranges can be selected manually by moving the shift selector up (+) or down ...

    Trailer towing tips
    CAUTION ● Never exceed 45 mph (72 km/h) when towing a trailer in hilly country on hot days. ● When towing a trailer, steering, stability, stopping distance and braking performance wi ...