Volvo RTI, Руководство по эксплуатации

Страница: 68 / 83

06 Questions and answers
Frequently asked questions
06
66
The position of the car on the map is
wrong
The Navigation system shows the position of
the car to an accuracy of about 20 metres.
There is a greater chance of error when driving
on roads lying parallel to another road, on
winding roads, on roads on several levels and
after driving a long distance without making
any distinctive turns.
High mountains, buildings, tunnels, viaducts,
over/underpasses etc. also have a negative
affect on the reception of GPS signals, which
means that accuracy in calculating the position
of the car may decrease.
The system does not always calculate
the fastest/shortest route
When calculating a route outline, distance,
width of road, type of road, number of right or
left turns, roundabouts etc. are all taken into
account in order to produce the best theoreti-
cal route. A more efficient selection of route
may be possible based on experience and
knowledge of the area.
The system uses toll roads, motorways
and ferries even though I chose to avoid
them
For technical reasons, the system can only use
major roads when calculating a route outline
extending over a long distance.
If you selected to avoid toll roads and motor-
ways, then they are avoided to the greatest
possible extent and are only used if there is no
other reasonable alternative available.
The position of the car on the map is
incorrect after transportation
If the car is transported, for example by ferry or
train, or in such a way as to impede the recep-
tion of GPS signals, it can take up to
5 minutes before the position of the car is cor-
rectly calculated.
The position of the car on the map is
incorrect after the car battery has been
disconnected
If power has been cut from the GPS antenna,
it can take more than 5 minutes for the GPS
signals to be received correctly and the posi-
tion of the car to be calculated.
The car symbol on screen behaves errati-
cally after a tyre change
In addition to the GPS receiver, the car's speed
sensor and a gyro assist in calculating the cur-
rent position and direction of travel of the car.
After fitting the spare wheel or changing
between summer and winter tyres the system
needs to "learn" the size of the new wheels.
In order for the system to work optimally it is
recommended to turn the steering wheel to full
lock a few times while driving, in a suitable
location.
The map image does not correspond
with the real situation
Factors such as the constant expansion and
rebuilding of the road network, new traffic reg-
ulations constantly being introduced etc. mean
that the map database is not always complete.
Continuous development and updating of map
data is underway - a Volvo dealer can provide
more information.
See also www.volvocars.com/navi for further
information on maps etc.
The scale of the map sometimes
changes
There is no detailed map information in certain
areas. The system then automatically changes
the degree of magnification.
The expected menu option is missing
Check the settings that have been made.
Select
Reset navigation settings to restore
the original settings.
If this does not help, select Delete all user
data .