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GPS is a position detecting system utilizing the signals
from GPS satellites deployed by the U.S. Department of
Defence.
The Mobile Navigation System uses input from three or
more satellites and calculates the vehicle position based
on the principle of triangulation.
The positioning accuracy of the system corresponds to
the error display of the GPS of about 30 to 200 meters.
Time to detect the current position
If you are using the system for the first time, or if you have not used it for some time, it takes
about 5 minutes (or about 2 minutes in places of open area) to calculate your vehicle's posi-
tion.
GPS signal reception is poor in the following places:
In tunnels
¡If you have a roofrack on your vehicle, install the GPS antenna away from the roofrack.
¡The GPS satellites are controlled by the U.S. Defense Department, which may intentionally
lower positioning accuracy. In such cases, there may be vehicle position deviations.
Notes:
¡There may be vehicle position deviations for some time till GPS signals are
received after turning on the ignition.
¡Using a spare tyre in place of the regular one may cause vehicle position devia-
tions.
¡Any difference between the direction in which your vehicle actually travels and
that shown on the map is automatically eliminated by azimuth correction.
Map Matching
This function compares your vehicle's tracking data with the road data on the map DVD-ROM,
applies dead reckoning to determine the road where you are driving, and displays your vehicle
on that road on the map.
Among high-rise
buildings
Under elevated roads In wooded areas
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