tires TOYOTA PRIUS 2004 2.G Navigation Manual

10
When your vehicle is receiving signals from
the satellites, the “GPS” mark appears at the
top left of the screen.
The GPS signal may be physically ob-
structed, leading to inaccurate vehicle posi-
tion on the map display. Tunnels, tall build-
ings, trucks, or even the placement of objects
on the instrument panel may obstruct the
GPS signals.
The installation of window tinting may also ob-
struct the GPS signals. Most window tinting
contains some metallic content that will inter-
fere with the GPS signal reception. We ad-
vice against the use of window tinting on ve-
hicles equipped with navigation systems.
The GPS satellites may not send signals due
to repairs or improvements being made to
them.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 posi-
tion may not be shown in the fol-
lowing 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.

11
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.
(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, there is
no route guidance.
When passing through the 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-
son.
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 the tire turning
data and is designed to work with factory−
specified 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.

78
Position/Direction calibration
1. Touch the scroll arrows to move the
cursor to your desired location.
Touch the
“Enter” switch.
2. Touch either the or switch to ad-
just the direction of the current vehicle
position mark.
Touch the
“Enter” switch and the map
screen will be displayed.
Tire change calibration
The tire change calibration function will be
used when replacing the tires. This func-
tion will adjust the miscalculation caused
by the circumference difference between
the old tires and new ones. If this proce-
dure is not performed when tires are re-
placed, the current vehicle position mark
may be incorrectly displayed.
To perform a distance calibration procedure,
touch the
“Tire Change” switch on the
“Calibration” screen.
The message appears and the quick distance
calibration is automatically started. A few
seconds later, a map screen will be displayed.

97 “Reset All”: To reset the item which has sat-
isfied a condition.
Touch the
“Off” switch at the top of the
“Maintenance” screen to turn off the informa-
tion screen.
When your vehicle needs to be serviced, the
icon color will change to orange.
INFORMATION
For scheduled maintenance informa-
tion, please refer to the “Scheduled
Maintenance Guide” or “Owner’s
Manual Supplement”.
Depending on the driving or the road
conditions, the actual date and dis-
tance may differ from the stored date
and distance in the system.
Information items
Oil change
Replace oil filter
Rotate tires
Replace tires
Replace battery
Replace brake linings
Replace wiper blades
Replace engine coolant
Replace brake fluid
Replace ATF
Scheduled maintenance
Replace air filter
Personal event