BASIC FUNCTIONS
60
(a) Accurate current vehicle position
may not be shown in the following
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 cur-
rent 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.
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 informa-
tion on setting the current position
calibration, see page 95.
(b) Inappropriate route guidance may
occur in the following cases:
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 auto-
matic rerouting during high speed dri-
ving. 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 regula-
tions prohibiting the entry of the vehicle
that vary by time or season or other
reasons.
The road and map data stored in your
navigation system may not be com-
plete or may not be the latest release.
BASIC FUNCTIONS
61
After replacing the tire, implement the
operation described in the “Current
position calibration”. (For details, see
page 95.)
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 orig-
inally equipped diameter may cause inac-
curate display of the vehicle’s position.
The tire pressure also affects the diameter
of the tires so please make sure the tire
pressure of all four tires is correct. Map database is made based on the
maps, 2008 edition of DENSO, whose
information source comes from
NAVTEQ maps, Tele Atlas maps and
infoUSA POIs.
2007 NAVTEQ. All rights reserved.2007 Tele Atlas North America, Inc.
All rights reserved. This material is pro-
prietary and the subject of copyright
protection and other intellectual prop-
erty rights owned by or licensed to Tele
Atlas North America, Inc. The use of
this material is subject to the terms of a
license agreement. You will be held li-
able for any unauthorized copying or
disclosure of this material.
Data by infoUSA Copyright
2007, All
Rights Reserved.
This product contains proprietary and
confidential property of NAVTEQ, Tele
Atlas and infoUSA. Unauthorized use,
including duplication of this product is
expressly prohibited.
Map database information
and updates
