tire pressure TOYOTA SIENNA 2005 XL20 / 2.G Navigation Manual

11 Even when the navigation system is receiving
clear GPS signals, the vehicle position may
not be shown accurately or inappropriate
route guidance may occur in some cases.
(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 winding 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 direction 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 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 sig-
nals, you can correct the current posi-
tion manually. For information on set-
ting the current position calibration, see
page 77.

12
(b) Inappropriate route
guidance may occur in the
following cases:
When turning at an intersection off the
designated route guidance.
If you set more than one destination but
skip any of them, auto reroute will display
a route returning to the destination on the
previous route.
When turning at an intersection for which
there is no route guidance.
When passing through an intersection,
there is no route guidance.
During auto reroute, 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 re-
route during high speed driving. In auto
reroute, a detour route may be shown.
After auto reroute, the route may not be
changed.
An unnecessary 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 rea-
sons.
The road and map data stored in your nav-
igation system may not be complete or
may not be the latest version.
After replacing the tire, implement the op-
eration described in the “ Tire change
calibration”. (For details, see page 78.)
This navigation system uses tire turning data
and is designed to work with factory−speci-
fied tires for your vehicle. Installing tires that
are larger or smaller than the originally
equipped diameter may cause inaccurate
display of the vehicle’s position. The tire pres-
sure also affects the diameter of the tires so
please make sure the tire pressure of all four
tires is correct.
Map database information and
updates
This system uses the maps of DENSO.
© GDT, Geographic Data Technology,
Inc.
Data by infoUSA Copyright ©2003, All
Rights Reserved.
© 2003 VISA Corporation
National Research Bureau ©2003
END USER LICENSE AGREEMENT
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CAREFULLY BEFORE USING THE
NAVIGATION SYSTEM
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YOUR COPY OF THE MAP DATABASE
(“The DATABASE”), ORIGINALLY
MADE BY Geographic Data Technology,
Inc. (“GDT”), USED IN THE
NAVIGATION SYSTEM. BY USING THE
DATABASE, YOU ACCEPT AND
AGREE TO ALL TERMS AND
CONDITIONS SET FORTH BELOW.
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The DATABASE and the copyrights and
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