Aston Martin DB 9 2010 Manual page 178

Screen Display
The screen display is determined by factors such as geographic
location and settings that have been made, such as map scale, the
symbols selected to be shown, etc. (Refer to 'Map symbols', page
10.30).
[1] ON A HIGHWAY- The screen will show the points of interest
along the highway. This function is available even if a destination has
not been selected. A scroll list at the right shows that there are
additional alternatives.
[2] DETAILED MAP SHOWING INTERSECTIONS- The screen will
show lanes on the road to help you select the correct one at the next
intersection. This function is only available on major roads. Voice
guidance is also always provided.
[3] TWO MAPS HAVE BEEN SELECTED IN SETTINGS- Both sections
of the screen show the same map, but with different scales (Refer to
'Map View', page 10.28).
10.8
2
1
4 3
[4] MAP SCROLL MODE- (Refer to 'Map Scroll', page 10.29).
Unverified Roads
A small number of roads in the system may be unverified. This means
that information on signs, one-way streets, left turns, etc., may not be
accurate. An itinerary containing unverified roads will be shown with
gray arrows instead of the usual yellow ones. The system provides
information when an unverified road is added to an itinerary and
when the vehicle begins to travel on one of these roads.
Compass
The red tip of the compass needle points in a
northerly direction on the map. The destination
arrow in the outer ring of the compass points in the
direction of the destination.
Under <Map options> on the Settings menu you
can choose to show or hide the compass and
destination arrow.