2003 TOYOTA AVALON tires

AVALON_Navi_U (L/O 0205)
502003 AVALON NAVI (OM41403U)
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 the GPS signal recep-
tion. We recommend not to use the win-
dow tinting on vehicles equipped with nav-
igation 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:

AVALON_Navi_U (L/O 0205)
512003 AVALON NAVI (OM41403U)
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, there
is no route guidance.
When passing through the intersection,
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 reason.
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 the tire turn-
ing 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
position. 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:

AVALON_Navi_U (L/O 0205)
792003 AVALON NAVI (OM41403U)
POSITION/DIRECTION CALIBRATION
1. Move the cursor mark to your
desired point by operating the select
and scroll lever of the navigation
controller.
Push the
“ENT” button on the naviga-
tion controller.
2. Operate the select and scroll lever of
the navigation controller, so that the
screen direction is facing to your
desired direction.
Push the
“ENT” button on the naviga-
tion controller, and then the map screen
will be displayed. TIRE CHANGE CALIBRATION
The tire change calibration function
should be used when the tires are re-
placed. This will adjust for any possible
change in tire circumference from the
old tires to the new ones. If this proce-
dure is not performed when tires are
replaced, the current vehicle position
mark may become incorrect.
To execute the fast distance tire calibra-
tion procedure, select the
“Tire
change”
switch on the “Calibration”
screen.
The message appears and the fast dis-
tance calibration is automatically started.
A few seconds later, the map screen will
be displayed.

AVALON_Navi_U (L/O 0205)
982003 AVALON NAVI (OM41403U)
After you input that information, select the
“OK” switch. The screen then returns to
the “Maintenance” screen. The icon’s color
will change to green after the date or driv-
ing distance is inputted. The icon’s color
will change to orange when your Toyota
needs to be serviced. The following
switches appear on the screen.
“Delete all”: Cancel all conditions which
have been inputted.
“Reset all”: Reset all items which satisfy
either condition.
Select the
“Off” switch at the top of the
“Maintenance” screen, and the information
screen will no longer be displayed.
INFORMATION
 For scheduled maintenance informa-
tion, please refer to the “Owner ’s
Manual Supplement” or “Scheduled
Maintenance”.
 Depending on your driving or the
road conditions, the system may
have a timelag between the data
which has been inputted and the ac-
tual date and driving distance.
Information items
Scheduled maintenance
Oil change
Replace oil filter
Rotate tires
Replace tires
Replace battery
Replace brake lining
Replace wiper blades
Replace engine coolant
Replace brake fluid
Replace ATF
Replace air filter
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