navigation SUBARU BRZ 2016 1.G Navigation Manual
[x] Cancel search | Manufacturer: SUBARU, Model Year: 2016, Model line: BRZ, Model: SUBARU BRZ 2016 1.GPages: 336, PDF Size: 10.83 MB
Page 179 of 336

Navigation 177
Further Information
Regarding Vehicle Position Detection 
Correction Using Map Matching
Map matching is a method of comparing information on the current 
position acquired by GPS and so on, with the road driven up to that 
point, and correcting the current position based on the most likely 
road.
This unit uses information on the current position combined with 
independent navigation and satellite navigation and matches it to the 
shape of the road to create the correction.
However, as it cannot avoid the error margins at the current position, 
the current position may shift away from the actual position even when 
correcting using map matching.
Also, the vehicle marker may shift if the map data and the shape of the 
road being driven on differ.
NOTE
Because it takes a short time for operations to stabilize just after turning on the 
unit, the vehicle mark may not immediately match the vehicle as it moves. After 
driving for a while, operations stabilize, and the marker should match the actual 
driving position.
Regarding the Accuracy of the Current Position 
and Route Navigation
As in the following images, an accurate display of the current position 
or route navigation may not be provided, however this is not an 
indication of a malfunction in the unit, but is due to road conditions or 
driving conditions.
Actual Vehicle Swept Path
Vehicle swept path acquired from each sensor
Corrected using map matching on the screen
• Shows the current position on roads 
running in parallel.• Shows the current position on the 
other road when there is a narrow 
fork in the road.
• Shows the current position on the 
road ahead or behind when turning 
right or left.• Shows the current position when 
traveling up a steep hill. 
Page 180 of 336

178 Navigation
Further Information
• Shows the current position if the 
road continues to curve around on 
itself in the same direction.• Shows the current position after a 
sudden change in lanes.
• Shows the current position when the 
vehicle is on a parking garage 
turntable and the ACC is off.• Shows the current position when 
driving on snowy roads where the 
vehicle may slip easily, or when 
driving with snow chains.• Shows the current position in the last 
confirmed position before moving 
when using another means of 
transport, such as a ferry, until the 
GPS can determine the new position.• It actually navigates through roads 
that cannot be driven (no entry and 
so on).
• Shows the current position when 
reversing. 
Page 181 of 336

Navigation 179
Further Information
Regarding Roads and Place Name Data
Because road and place names may change after the map data has 
been created, there may be times when road and place names do not 
match.
When no information is available in the map data, function such as 
display of road names, searching for facilities, and route guidance 
cannot be used.
When maps are created, land surveys are conducted and information 
about roads improvement and opening is collected to provide the 
most accurate information possible. However, modifications in roads, 
place names and facilities may be carried out at any time. 
Consequently, we cannot guarantee that map data contains no errors 
in road positions, configuration and names, or in facility names.
The navigation system includes a function to read out names of roads, 
intersections, and so on during guidance.
Depending on the selected language, names read out by the system 
may not be exactly accurate due to missing information in map data.
Regarding Route Navigation
• It may deviate from the route 
navigation when there is a turn at an 
intersection etc., and a mistake in the 
voice navigation.• When searching for the route, it may 
take the long way around.
• The route may need you to make a 
U-urn during navigation.• When driving on a straight road, 
information may be displayed 
indicating that you should go 
straight ahead. ( When the 
intersection shape is not clear and so 
on.)
In six tenths
of a mile,
right turm. 
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180 Navigation
Further Information
•Performing a new search while traveling at high speeds may take 
some time.
•The route may not change even after performing another search.
•When isolated locations or roads with no surrounding available 
information are set as the current position/destination, you may not 
be able to search for a route.
•A route may not be displayed when the current position is close to 
the destination.
•Even if you select toll roads as a priority, the route may not guide you 
through a toll road.
In a similar way, toll roads may be displayed even if you prioritize 
other roads over toll roads.
( When it is possible to select a toll road or a normal road to create 
the route, priority is given to the user's toll road preference - use toll 
roads, or avoid toll roads.)
• The navigation may not indicate that 
the road curves at an intersection.• The navigation may guide you back 
to a waypoint if you search for the 
route again after passing the 
waypoint and are heading to your 
destination.
• Many place names may be displayed 
when navigating a district.• Always drive by following the actual 
traffic regulations.
• When searching for a route, it may not be displayed quick enough for the next 
left or right turn.
Transit point
Search
      reinitiated
Route 
search 
complete