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 ...

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    Check TPMS Warning
    The “Tire Pressure Monitoring Telltale Light” will flash on and off for 75 seconds and then remain on solid when a system fault is detected. The system fault will also sound a chime. If the ...

    Trunk
    WARNING Exhaust gases can enter the vehicle if it is driven with the liftgate, trunk/hatch open, or with any objects that pass through the seal between the body and the trunk/hatch or liftgate. En ...

    Side ventilators
    1) Open 2) Close Move the tab to adjust the flow direction. To open the ventilator, turn the side grille open/close wheel upward to the “” position. To close it, turn the wheel downward t ...