Panasonic CNGP50N - Manual (Page 25)

English
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Vehicle positioning precision
The vehicle mark position may not be
displayed correctly due to the driving
environment and the GPS satellite status.
Continue driving without taking further action,
and the map matching function and GPS satellite
data will be used to automatically correct the
vehicle mark position.
l When a highway and an ordinary road are
close together
l When driving through a fork junction with a
narrow angle between roads
l When driving on roads in a block grid pattern
l After moving on a ferry, car transporter, etc.
l When driving on steep mountain roads
l When driving on winding roads
l When turning right or left after driving on a
straight road for a long period
l When driving in a weaving motion on a wide
road
The vehicle mark position may not be displayed
correctly in the following additional situations:
l Between turning the ignition switch on (after
turning the power on) and receiving GPS
signals.
l When driving for the first time after installing
this system.
l After changing a tire, particularly when driving
on an emergency tire.
l When driving on roads that are slippery due
to snow, gravel etc., or when driving with tire
chains.
l When the vehicle emerges onto a normal
road after driving on a spiral route out of an
underground or multi-story parking lot, or
when the vehicle was turned on a turntable after
stopping the engine (turning the power off).
l GPS satellites are under the control of the US
Department of Defense, which may deliberately
reduce positioning precision. In such situations,
the vehicle mark not reflect the actual position of
the vehicle.
What is a navigation system?
Route searching
The following situations do not indicate
a malfunction:
l Some roads may be impassable, such as
roads closed in winter or temporarily closed
for pedestrians.
l When searching for a route through narrow
streets, the route may include impassable
footpaths or stairs.
l Some roads may be impassable, due to the
opening of a new road.
l Roads may be displayed which are not
actually passable.
l The route may not change even when the
search is repeated.
l The route may be congested.
l If there is no road or only very narrow roads
to the destination, the route may only be
displayed to a point some distance from the
destination.
l Guidance may lead to an ordinary road
under an elevated road. The reverse can also
happen.
l A route may be displayed which makes a
U-turn.
Route guidance
The following situations do not indicate
a malfunction:
l Guidance may not be displayed even though
a turn is required at an intersection. Guidance
of the name of the intersection may not be
provided.
l Guidance for left or right turns may not match
the actual shape of the road.
l Voice guidance may be provided when the
vehicle deviated from the guidance route,
for example, turning before the guided
intersection.
l It may not be possible to display/provide
audio direction guidance on some highways
and toll roads.
l The Enlarged intersection map may not match
the actual road shape.
l The guidance distances may be slightly
inaccurate.
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