2002 Lexus IS 300 Navigation Manual - Page 56

2002 Lexus IS 300 Manual

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Limitations of the Navigation System D When using tires that are smaller or larger than the factory specifications. D When the tire pressure in any of the four tires is not correct. (b) Inappropriate route guidance may occur in the following cases: D When turning at a wrong intersection off the designated route guidance. D If you are heading for a destination without passing through a set required road, automatic rerouting may display a route returning to the set required road. D When turning at an intersection, there is no route guidance. D When passing through the intersection, there is no route guidance. D During automatic rerouting, the route guidance may not be available for the next turn to the right or left. D It may take a long time to operate automatic rerouting during high speed driving. In automatic rerouting, a detour route may be shown. D During automatic rerouting, the route may not be changed. D The route in a U-turn may be shown or announced. D A location may have multiple names and the system will announce one or more. D Some routes may not be searched. D If the route to your destination includes gravel, unpaved roads or alleys, the route guidance may not be shown. D Your destination point might be shown on the opposite side of the street. D When a portion of the route has regulations prohibiting the entry of the vehicle that vary by time or season or other reason. D 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 77.) This navigation system uses the tire turning data and is designed to work with factory- specified tires for your Lexus. 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 correct. INFORMATION If your vehicle cannot receive GPS signals, you can correct the current position manually. For the information on setting the current position calibration, see page 77. 50

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Limitations of the Navigation System
Limitations of the Navigation System
50
D
When using tires that are smaller or larger
than the factory specifications.
D
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 the information on
setting the current position calibration,
see page 77.
(b) Inappropriate route guidance
may occur in the following
cases:
D
When turning at a wrong intersection off
the designated route guidance.
D
If you are heading for a destination without
passing through a set required road, auto-
matic rerouting may display a route re-
turning to the set required road.
D
When turning at an intersection, there is
no route guidance.
D
When passing through the intersection,
there is no route guidance.
D
During automatic rerouting, the route
guidance may not be available for the next
turn to the right or left.
D
It may take a long time to operate auto-
matic rerouting during high speed driving.
In automatic rerouting, a detour route may
be shown.
D
During automatic rerouting, the route may
not be changed.
D
The route in a U–turn may be shown or an-
nounced.
D
A location may have multiple names and
the system will announce one or more.
D
Some routes may not be searched.
D
If the route to your destination includes
gravel, unpaved roads or alleys, the route
guidance may not be shown.
D
Your destination point might be shown on
the opposite side of the street.
D
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.
D
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 op-
eration described in the ”Current Position
Calibration”. (For details, see page 77.)
This navigation system uses the tire turning
data and is designed to work with factory–
specified tires for your Lexus. 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 correct.