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Appendix
If you put on chains, or change your tires for ones with a
different size.
If trees or other obstacles block the GPS signals for a consid-
erable period.
If you drive very slowly, or in a start-and-stop manner, as in a
traffic congestion.
If you join the road after driving around a large parking lot.
When you drive around a traffic circle.
When starting driving immediately after starting the engine.
Route setting information
Route search specifications
Your navigation system sets a route to your destination by apply-
ing certain built-in rules to the map data. This section provides
some useful information about how a route is set.
CAUTION
When a route is calculated, the route and voice guidance
for the route are automatically set. Also, for day or time
traffic regulations, only information about traffic regulations
applicable at the time when the route was calculated is
considered. One-way streets and street closures may not
be taken into consideration. For example, if a street is open
during the morning only, but you arrive later, it would be
against the traffic regulations so you cannot drive along the
set route. When driving, please follow the actual traffic signs.
Also, the system may not know some traffic regulations.
The calculated route is one example of the route to your
destination decided by the navigation system while taking
the type of streets or traffic regulations into account. It is not
necessarily an optimum route. (In some cases, you may not
be able to set the streets you want to take. If you need to take
a certain street, set a waypoint on that street.)
If the destination is too far, there may be instances where the
route cannot be set. (If you want to set a long-distance route
going across several areas, set waypoints along the way.)
During voice guidance, turns and intersections from the
freeway are announced. However, if you pass intersections,
turns, and other guidance points in rapid succession, some
may delay or not be announced.
It is possible that guidance may direct you off a freeway and
then back on again.
In some cases, the route may require you to travel in the
opposite direction to your current heading. In such cases,
you are instructed to turn around, so please turn around
safely by following the actual traffic rules.
In some cases, a route may begin on the opposite side of
a railway or river from your actual current location. If this
happens, drive towards your destination for a while, and try
route calculation again.
When there is a traffic congestion ahead, a detour route may
not be suggested if driving through the traffic congestion
would still be better than taking the detour.
There may be instances when the starting point, the way-
point and the destination point are not on the highlighted
route.
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