APPENDIX
270
V573_E
This navigation system calculates the
current vehicle position using satellite
signals, various vehicle signals, map
data, etc. However, the accurate po-
sition may not be shown depending
on the satellite condition, road con-
figuration, vehicle condition or other
circumstances.
The Global Positioning System (GPS)
developed and operated by the U.S.
Department of Defense provides an ac-
curate current vehicle position, normally
using 4 or more satellites, and in some
cases 3 satellites. The GPS system
has a certain level of inaccuracy. While
the navigation system will compensate
for this most of the time, occasional posi-
tioning errors of up to 300 feet (100 m)
can and should be expected. Generally,
position errors will be corrected within a
few seconds.
When your vehicle is receiving signals
from the satellites, the “GPS” mark ap-
pears at the top left of the screen.
The GPS signal may be physically ob-
structed, leading to inaccurate vehicle
position on the map display. Tunnels,
tall buildings, trucks, or even the place-
ment of objects on the instrument panel
may obstruct the GPS signals.
The GPS satellites may not send signals
due to repairs or improvements being
made to them.
Even when the navigation system is re-
ceiving clear GPS signals, the vehicle
position may not be shown accurately or
inappropriate route guidance may occur
in some cases.
NOTICE
The installation of window tinting
may obstruct the GPS signals.
Most window tinting contains some
metallic content that will interfere
with GPS signal reception. We ad-
vise against the use of window tint-
ing on vehicles equipped with navi-
gation systems.
Limitations of the
navigation system
Summary of Contents for NSDA-W11U
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