2004 TOYOTA AVALON Navigation Manual

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3. When there are 2 map screens dis-
played to switch the “North
up”/“Headingup” of the right screen
map, select
“Right screen”
switch.
4. Select the “Map orient” of the
“Edit right screen”, and then the
“Northup”/“Headingup” of the right
screen is switched.
When 2 map screens are displayed, you
can set one as the “North−up” and the
other one as the “Heading−up.”This navigation system calculates the
current vehicle position using satellite
signals, various vehicle signals, map
data, etc. However, an accurate position
may not be shown depending on the
satellite condition, road configuration,
vehicle condition or other circum-
stances.
The Global Positioning System (GPS) de-
veloped and operated by the U.S. Depart-
ment of Defense provides an accurate cur-
rent vehicle position using 3 to 4
satellites. The GPS system has a certain
level of inaccuracy built in for security
reasons. While the navigation system will
compensate for this most of the time, oc-
casional positioning errors of up to 300
feet can and should be expected. General-
ly, position errors will be corrected within
a few seconds.
Limitations of the navigation
system

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When your vehicle is not receiving signals
from the satellites, the “GPS” mark does
not appear at the screen.
The GPS signal may be physically ob-
structed, leading to inaccurate vehicle
position on the map display. Tunnels, tall
buildings, trucks, or even the placement of
objects on the instrument panel may ob-
struct the GPS signals.
The installation of window tinting may also
obstruct the GPS signals. Most window
tinting contains some metallic content that
will interfere with GPS signal reception.
We recommend not to use the window
tinting on vehicles equipped with naviga-
tion systems.The GPS satellites may not send signals
due to repairs or improvements being
made to them.
Even when the navigation system is re-
ceiving good GPS signals, the vehicle
position may not be shown accurately or
inappropriate route guidance may occur in
some cases.
When driving on a small angled Y−
shaped road.
When driving on a spiral road.
When driving on a slippery road such
as in sand, gravel, snow, etc.
When driving on a long straight road.
When freeway and surface streets run
in parallel.
After moving by ferry or vehicle carrier.
When a long route is searched during
high speed driving.
When driving without setting the current
position calibration correctly.
After repeating a change of directions
by going forward and backward, or
turning on a turntable in the parking
lot.
When leaving a covered parking lot or
parking garage.
When a roof carrier is installed.
When driving with the tire chains
installed.
When the tires are worn.
After replacing a tire or tires.
(a) Accurate current vehicle
position may not be shown in
the following cases:

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When using tires that are smaller or
larger than the factory specifications.
When the tire pressure in any of the
four tires is not correct.
INFORMATION
If your vehicle cannot receive GPS
signals, you can correct the current
position manually. For the information
on setting the current position cal-
ibration, see page 78.
When turning at a wrong intersection
off the designated route guidance.
If you are heading for a destination
without passing through a set preferred
road, automatic rerouting may display
a route returning to the set preferred
road.
When turning at an intersection for
which there is no route guidance.
When passing through an intersection
for which there is no route guidance.
During automatic rerouting, the route
guidance may not be available for the
next turn to the right or left.
It may take a long time to operate
automatic rerouting during high speed
driving. In automatic rerouting, a detour
route may be shown.
During automatic rerouting, the route
may not be changed.
The route in a U−turn may be shown
or announced.
A location may have multiple names
and the system will announce one or
more.
Some routes may not be searched.
If the route to your destination includes
gravel, unpaved roads or alleys, the
route guidance may not be shown.
Your destination point might be shown
on the opposite side of the street.
When a portion of the route has regu-
lations prohibiting the entry of the ve-
hicle that vary by time or season or
other reasons.
The road and map data stored in your
navigation system may not be complete
or may not be the latest release.
After replacing the tire, implement the
operation described in the “Current
position calibration”. (For details, see
page 78.)
This navigation system uses tire turning
data and is designed to work with factory−
specified tires for your Toyota. Installing
tires that are larger or smaller than the
originally equipped diameter may cause
inaccurate display of the vehicle’s posi-
tion. The tire pressure also affects the
diameter of the tires so please make sure
the tire pressure of all four tires is cor-
rect.
(b) Inappropriate route
guidance may occur in the
following cases:

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This system uses the maps of DENSO
based on NAVTEQ maps, GDT maps and
infoUSA POIs.
2003 NAVTEQ. All rights reserved.
GDT, Geographic Data Technology,
Inc.
Data by infoUSA Copyright
2002, All
rights reserved.
This product contains proprietary and
confidential property of NAVTEQ, GDT
and infoUSA. Unauthorized use, includ-
ing duplication of this product is ex-
pressly prohibited.There are two types of areas available
for route guidance. (See the following
pages.) In one type of area, primarily
around metropolitan centers, detailed
route guidance is available for the en-
tire area. In the other type of area, all
roads are displayed on the map but
route guidance is limited. The naviga-
tion route might lack precision because
the data (no right turns, oneway traf-
fic, etc.) is not completed. It is still
possible to reach the destination by fol-
lowing the arrow direction and distance
as shown on the bottom left of the
screen. The arrow points in the direc-
tion of the destination. The distance
shown is as measured in a straight line
from the current vehicle position to the
destination area.
COPYRIGHT NOTICE: This area includes
information taken with permission from
Canadian authorities, including
Her
Majesty the Queen in Right of Canada,
Queen’s Printer for Ontario.
In order to provide you with accurate map
information as much as possible, we are
always gathering information such as on
road repairs and carrying out on−site in-
vestigations. However, the names of
roads, streets, facilities, and their loca-
tions are often changed. In some places,
construction on roads may be in progress.
For that reason, information on some
areas in this system might be different
from the actual location.
Map database information and
updates

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1NO087
The map database is normally updated
once a year. Contact your Toyota dealer
for information about the availability and
pricing of an update.
DVD: To determine which version of the
database is currently in your vehicle, se-
lect the
“DVD” switch on the “Menu”
screen. The “DVD information” screen ap-
pears and displays the map database ver-
sion.ROUTE GUIDANCE AVAILABILITY
Route guidance available area for de-
tailed roads and for main roads are
provided.
The software covers the route guidance
available area as shown in the following
“Route guidance availability” illustrations.
Route guidance available areas may
change due to the upgrading of the map
data.

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Route guidance availability
2003 by NAVTEQ
Route guidance available areas
Route guidance available for main roads only

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2004 AVALON Navigation from Aug. ’04 Prod. (OM41413U)
2003 by NAVTEQ
Route guidance available areas
Route guidance available for main roads only
Route guidance availability

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2004 AVALON Navigation from Aug. ’04 Prod. (OM41413U)
2003 by NAVTEQ
Route guidance available areas
Route guidance available for main roads only
Route guidance availability