Vauxhall Astra GTC, Инструкция по информационно-развлекательной системе

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56 Navigation
The system will also work with poor
GPS reception, however, the
accuracy of the determination of the
position will be reduced.
After the entry of the destination
address or point of interest (nearest
petrol station, hotel, etc.) the route is
calculated from the current location to
the destination selected.
The route guidance is provided by
voice output and an arrow, as well as
with the aid of a multi-colour map
display.
TMC traffic information system
and dynamic route guidance
The TMC traffic information system
receives all current traffic information
from TMC radio stations. If dynamic
route guidance is active, this
information is included in the
calculation of the overall route. During
this process, the route is planned so
that traffic problems related to pre-
selected criteria are avoided.
If there is a traffic problem during
active route guidance, depending on
the pre-settings, a message appears
as to whether the route should be
changed.
TMC traffic information is displayed in
the route guidance display as
symbols or as detailed text on the
TMC messages menu.
To be able to use TMC traffic
information, the system has to receive
TMC stations in the relevant region.
Dynamic route guidance only works if
traffic information is received via the
TMC traffic information system.
The dynamic route guidance function
can be deactivated in the Navigation
options menu, see section
"Guidance"
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85.
Map data
All required map data is stored on an
SD card provided with the
Infotainment system.
Detailed descriptions on map SD card
handling and replacement, see
section "Maps"
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94
Usage
Control elements
The most important navigation-
specific control elements are the
following:
NAVI button: activate navigation;
show current position (if route
guidance inactive); show calculated
route (if route guidance active); toggle
between full map display, arrow
display (if route guidance active) and
split screen display, see "Information
on the display".
DEST button: open menu with
options for destination entry.
Eight-way switch: move display
window in navigation map view; to
select the destination, press in the
required direction to position the
crosswires over a destination on the
map.
RPT button: repeat last route
guidance message.
Activating the navigation system
Press the NAVI button.