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:

    Side impact air bag
    Your vehicle is equipped with a side impact air bag in each front seat. The purpose of the air bag is to provide the vehicle's driver and/or the front passenger with additional protection ...

    Replacement Parts
    Many components in your Flexible Fuel Vehicle (FFV) are designed to be compatible with ethanol. Always be sure that your vehicle is serviced with correct ethanol compatible parts. CAUTION! Rep ...

    2.5 L non-turbo models
    1) Power steering fluid reservoir (page 11-27) 2) Manual transmission oil level gauge (MT) (page 11-23) 3) Clutch fluid reservoir (page 11-29) 4) Brake fluid reservoir (page 11-28) 5) Fuse box ( ...