Buick LaCrosse: Global Positioning 
System (GPS) - OnStar Additional Information - OnStar - Buick LaCrosse Owners ManualBuick LaCrosse: 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 trees. If GPS signals are not available, the OnStar system should still operate to call OnStar. However, OnStar could have difficulty identifying the exact location.

• In emergency situations, OnStar can use the last stored GPS location to send to emergency responders.

• A temporary loss of GPS can cause loss of the ability to send a Turn-by-Turn Navigation route.

The Advisor may give a verbal route or may ask for a call back after the vehicle is driven into an open area.

    Potential Issues
    Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five ...

    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:

    External sound sources
    USB flash drive To simplify the use of a USB flash drive, it is advisable to only store music files on the drive. It will take considerably longer for the system to index the files on the drive i ...

    To open and close the hood
    To open the hood, two latches must be released. 1. Pull the hood release lever located under the left sideof the instrument panel. Hood Release Lever 2. Lift the secondary latch located under the ...

    Defrosting or defogging the windshield
    To direct warm air to the windshield and front door windows: 1. Set the air inlet selection button to the OFF position. 2. Press the “” button. 3. Turn the temperature control dial all the way ...