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:

    Indicator lights
     Continuously Variable Transmission (CVT) indicator light When the ignition switch is placed in the ON position, the light comes on for 2 seconds.  Continuously Variable Transmis ...

    Cleaning the seat covers
    Do not use microfiber cloths to clean genuine leather, artificial leather or Alcantara® covers. If used often, these can damage the cover. Observe the following when cleaning:  - clean g ...

    Loading tips
    ● The GVW must not exceed GVWR or GAWR as specified on the F.M.V.S.S./C.M.V.S.S. certification label. ● Do not load the front and rear axle to the GAWR. Doing so will exceed the GVWR ...