Cautions Relating To Auto Reroute In Memory Navi Mode; Traffic Icon During The Memory Navi Mode; Operation Outside The Memorized Area; Positioning Technology - Pioneer AVIC-D3 - Navigation System With DVD Player Operation Manual

memory navi mode, the display will return to
the map display mode used during the DVD
navi mode when the DVD Map Disc is set
again.
• In memory navi mode, map scale data that
cannot be read in the memory cannot be dis-
played. Accordingly, the edge of the map will
appear cut off along the point it was not read
into memory. This simply indicates the edge of
the map data, and is not a malfunction.
• If you keep driving or scrolling the map to a
point where the map can no longer be dis-
played, the scale automatically switches to a
range possible to display. If you would like to
continue driving or scrolling the map at the
same scale, set the DVD Map Disc in the navi-
gation system.
• You cannot reroute to avoid traffic congestion
or closure.
• If you continue to drive outside the route for a
while, you may not be able to perform map
matching.
• If you deviate from the route during memory
navi mode, set route will be rerouted, but only
to return you to the original route calculated
within the memorized area.
• Although an enlarged map of the intersection
will be displayed, no special freeway illustra-
tion (illustration of freeway intersections) will
be displayed.
• If the XM tuner (GEX-P10XMT, GEX-P920XM),
which is sold separately, is connected, the logo
data is not displayed during memory navi
mode.
Cautions relating to auto reroute
in memory navi mode
Auto rerouting in memory navi mode is designed
to return you to your original route wherever pos-
sible.
In memory navi mode, persistently deviating from
the route may result in one of the following:
• A clearly circuitous route
• Leaving a toll road and returning to the toll
road from where you left it.
In the above case, if the set route seems unsuit-
able, insert the DVD Map Disc that records your
current position. Setting the DVD Map Disc to
navigation automatically resets the route from
your current location to your destination.
TRAFFIC icon during the
memory navi mode
• XM NavTraffic-related data for a "Zone" (e.g.,
Zone 1 contain ID, OR, WA) only can be memo-
rized. Therefore, if
screen when crossing a zone border, you will
need to insert the disc to use the XM NavTraffic
function. Touching
check the locations of the traffic information
along the route. However, you cannot perform
rerouting.
Operation outside the memo-
rized area
When the vehicle leaves the memorized area, the
functions will be limited.
• The auto reroute function does not work.
• You can only display a larger scale map. The
map display will automatically change to a
25 mi (or 50 mi) scale.
• The map matching function will not be avail-
able. Therefore, the position of your vehicle
may be misaligned.
• The navigation guidance will only be available
when arriving at your destination. Other guid-
ance is not possible (this includes no display of
direction arrows).
To cancel these limitations, insert the DVD Map
Disc to the navigation system.

Positioning Technology

The navigation system accurately measures your
current location by combining the positioning by
GPS and by Dead Reckoning.

Positioning by GPS

The Global Positioning System (GPS) uses a net-
work of satellites orbiting the Earth. Each of the
satellites, which orbit at a height of 68 900 000
feet (21 000 km), continually broadcasts radio sig-
nals giving time and position information. This
ensures that signals from at least three can be
appears on the
allows you to
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