Global Positioning System (GPS)
The Navigation System determines the position of your
vehicle by using satellite signals, various vehicle
signals and map data.
The Global Positioning System (GPS) locates the
current position of your vehicle using signals sent by the
United States Department of Defense GPS Satellites.
While your vehicle is receiving signals from the
satellites, GPS will not appear on the map screen.
However, at times, other interferences such as
the satellite condition, road configuration, the condition
of the vehicle and/or other circumstances can interfere
with the system’s ability to determine the accurate
position of the vehicle. This is when GPS will appear on
the map screen.
The system may not be available or interferences may
occur if any of the following are true:
•
Signals are obstructed by tall buildings, large trucks
or a tunnel.
•
Satellites are being repaired or improved.
•
Aftermarket glass tinting has been applied to the
vehicle’s windshield.
Do not apply aftermarket glass tinting to the vehicle’s
windshield. Glass tinting will interfere with the system’s
ability to receive GPS signals and may cause the
system to malfunction.
If you are experiencing a problem, see “Vehicle
Positioning” and “Problems with Route Guidance”
following in this section for more information.
Vehicle Positioning
At times, the position of the vehicle on the map may be
inaccurate due to one or more of the following
reasons:
•
The road system has changed.
•
The vehicle is traveling on slippery road surfaces
such as sand, gravel and/or snow.
•
The vehicle is being driven on winding roads.
•
The vehicle is being driven on a long straight road.
•
The vehicle is approaching a tall building or a
large vehicle.
•
The surface streets run parallel to a freeway.
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