86 Infotainment System
Global Positioning
System (GPS)
The position of the vehicle is
determined by using satellite
signals, various vehicle signals,
and map data.
At times, other interferences
such as the satellite condition,
road configuration, the condition
of the vehicle and/or other
circumstances can interfere with
the navigation system's ability to
determine the accurate position
of the vehicle.
The GPS shows the current
position of the vehicle using
signals sent by the GPS Satellites.
When the vehicle is not receiving
signals from the satellites, a
symbol appears on the map screen.
See Navigation Symbols on
page 57.
This system might not be available
or interferences can occur if any of
the following is true:
.
Signals are obstructed by tall
buildings, trees, large trucks,
or a tunnel.
.
Objects are located on the rear
shelf of the vehicle.
.
Satellites are being repaired or
improved.
For more information if the
GPS is not functioning properly, see
“If the System Needs Service” and
“Problems with Route Guidance.”
Vehicle Positioning
At times, the position of the vehicle
on the road could be inaccurate due
to one or more of the following
reasons:
.
The road system has changed.
.
The vehicle is driving on slippery
road surfaces such as in sand,
gravel, and/or snow.
.
The vehicle is traveling on
winding roads or long straight
roads.
.
The vehicle is approaching a tall
building or a large vehicle.
.
The surface streets run parallel
to a freeway.
.
The vehicle has been transferred
by a vehicle carrier or a ferry.
.
The current position calibration
is set incorrectly.
.
The vehicle is traveling at high
speed.
.
The vehicle changes directions
more than once, or when the
vehicle is turning on a turn table
in a parking lot.
.
The vehicle is entering and/or
exiting a parking lot, garage, or a
lot with a roof.
.
The GPS signal is not received.
.
A roof carrier is installed on the
vehicle.
.
Tire chains have been installed.
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