2008 SUBARU LEGACY sat nav

6■Points to note before useStarting the engine before using the system
The navigation system can be used with the ignition key in
either the ON position or the ACC position. To preserve the
battery, however, it should be used with the engine running
whenever possible. Using the system for a long time with
the engine off can cause the battery to run down.Delay before display of current position
The system will not immediately display a correct indication
of your vehicle’s current position after being switched on for
the first time or after the battery has been disconnected for
a long time. It will display a correct current position
indication as soon as it receives Global Positioning System
(GPS) signals.Program reloading after battery disconnection
The navigation program will be erased from the system’s
memory if the battery is disconnected. If this happens, load
the provided DVD-ROM disc in the system’s main unit and
turn the ignition switch to the ON or ACC position. The
system will automatically reload the program and start
operating normally again.Incorrect operation on rough roads
The system may operate incorrectly or be unable to read the
data on the DVD-ROM disc when subjected to severe
vibration caused by driving on rough roads.
Handling the GPS antenna
Do not paint the antenna. Doing so could impair or prevent
signal reception.Disabled switches
Some switches are disabled during operation of the system.
These switches are displayed in fainter colors and no
messages are displayed for them.Risk of damage to the main unit
Be mindful of the occupant compartment temperature.
Using the system when the occupant compartment
temperature is extremely high or low can damage it or cause
it to malfunction. Also, note that the system’s main unit can
be damaged by strong vibration and by any metallic object or
water that gets inside.Condensation
Condensation can form on the lens inside the main unit
when there is a rapid change in occupant compartment
temperature (for example, when the heater is switched on in
cold weather). Such condensation can cause the system to
operate abnormally. If you wait an hour or so for the
condensation to disappear, the system should start working
normally again. If normal operation is still not restored after
several hours, we recommend that you contact the nearest
SUBARU dealer.
Before Use

13
Markers and Controls Displayed on MapsTouch a point on the map. A crosshair (scroll mark) will appear on the screen. Then touch a desired point on
the map. The map will scroll with the selected point at the center.Screens During Route Setting


Scroll the map
Press button
to return to the
current map screen.
1Time
Indicates the current time.
2GPS marker
Shows the status of the signal from GPS satellites.
When this marker appears, your navigation system is
receiving GPS signals and using them to calculate the
position of your vehicle.
3Map orientation control
Used to select either a “north up” display or “heading up”
display of the map. (See Page 18.)
4Zoom-out/zoom-in control and map scale
The up-pointing or down-pointing arrow is used to zoom out
or zoom in the map. The number indicates the scale of the
displayed map.
5Menu control
Select this key to display the menu screen. (See Page 16.)
6Screen configuration control
Allows you to select a preferred display type for route
guidance. (See Page 47.)
7Vehicle marker
Indicates the current position and direction of your vehicle.

77
Navigation Setup
Navigation informationThis function allows you to confirm the vehicle signal, the version of the DVD-ROM disc. (See Page 78.)
■Vehicle signalThis function allows certain vehicle data and GPS satellite data to be displayed.1
Select (vehicle signal).The VEHICLE SIGNAL screen will appear.
Press the button or select , then select (navigation setup), and then select
(navigation
information
).

82
Navigation SetupSet clockSince the adjustments for minutes and seconds are made automatically using the time data provided by GPS
satellites, you can set your clock by simply performing a time-zone and daylight saving time adjustment using
this function.
1
Select if you prefer 24-hour display; select for 12-hour
display.
2
Select the time-zone by pressing the , , or .NOTEInitial time-zone setting of this navigation unit is Pacific (west disc) /Eastern (east disc).
3
Select the daylight saving time mode by pressing or .NOTESelect to advance the time by one hour.
Press the button or select , then select (navigation setup), and then select
(set clock
).

120
■Accuracy of vehicle positionArea in which GPS signals cannot be received
Because the radiowave signals from the GPS satellites travel
primarily by line of sight, the navigation system might not be
able to receive the signals in the areas described below.
(If the GPS mark does not appear on the map screen, it
means that the GPS radiowave signals are not being
properly received.)
(1) Inside a tunnel
(2) Inside a building
(3) Under a three-dimensional road system such as for high-
speed roads
(4) On boulevards lined with trees
(5) Between buildings
(6) Under a cliff or in a cave
• If the GPS antenna or its surroundings are blocked by an
obstacle (including cargo), it might not be possible for the
system to receive the GPS radiowave signals.
• If multiple paths are created due to the reflection from
buildings, a large measurement error could occur, causing
the vehicle’s mark to deviate from its actual position.Deviation of the vehicle’s position mark
The vehicle’s position mark could deviate from its actual
position when the vehicle is being driven under the
conditions listed below or due to conditions of the GPS
satellites.If the vehicle travels on a road whose actual shape differs
from that in the map data, the vehicle’s mark could deviate
from the actual position. The correct position will eventually
appear on the screen through the correction function. If the
screen does not show the correct position for an excessively
long time, correct the current position or make an automatic
correction.
(1) The vehicle’s mark could appear on a parallel road.
(2) When the road splits into a narrow Y, the vehicle’s mark
could appear on the other fork of the Y.
(3) When the vehicle makes a right or left turn, the vehicle’s
mark could appear on one street ahead or behind.
(4) If the vehicle is transported by means other than the
vehicle’s own power, such as on a ferryboat, the
vehicle’s mark will remain in the position it was before
the transport until the system can calculate the position
through the GPS.
(5) When the vehicle is driven on a steep incline, the
vehicle’s mark could deviate from its actual position.
(6) If there are continuous gradual curves in the same
direction, the vehicle’s mark could deviate from its
actual position.
(7) If the vehicle is driven in a zigzag pattern, such as
through frequent lane changes, the vehicle’s mark could
deviate from its actual position.
(8) If the vehicle is placed on a turntable, such as in a
parking area, and turned with the ignition OFF, the
vehicle’s mark could deviate from its actual orientation.General Information

121
The vehicle’s mark could also deviate even after the
vehicle has exited the parking area.
(9) The vehicle’s mark could deviate from its actual position
if the vehicle is driven using tire chains or snow tires on
a snow-covered road or on a mountainous road.
(10) The vehicle’s mark could deviate from its actual position
after the tires have been replaced.
■How the vehicle position is detectedDetecting the vehicle’s position through the GPS
GPS stands for “Global Positioning System”, which is a
system used for detecting an object’s position through the
use of satellites of the U.S. Department of Defense.
Radiowave signals from three or more satellites are received
by the navigation system, which utilizes the principle of
triangulation to detect the position at which the radiowave
signals are received.
When the navigation unit is receiving the GPS radiowave
signals, a “GPS” mark will appear on the map screen.Detecting the vehicle’s position through self-containednavigation
Self-contained navigation is a system that detects the
vehicle’s position by calculating the vehicle’s driven distance
and turning angle though the use of various types of sensors
that are mounted on the vehicle.Through the use of self-contained navigation, the vehicle’s
position can be detected even in an area where the GPS
radiowave signals cannot be received.
Making corrections to the detection of the vehicle’sposition through map matching
• In map matching, the position information resulting from
the detection of the vehicle’s position and the locus of the
travel of the vehicle up to the present are constantly
compared to the shape of the roads on the map in order to
correct the vehicle’s position mark to the most appropriate
road.
• If the vehicle is driven on a road whose actual shape
differs from its map data, the vehicle’s position mark on
the map could deviate from its actual position.
Occasionally, the correction of the vehicle’s position mark
to the actual road on the map can be observed, particularly
after the vehicle has turned at an intersection or has exited
from a parking area.
General Information