Toyota Prius PHV 2019 Owner's Manual page 101

• 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 4
tires is not correct.
 Inappropriate route guidance
may occur in the following cases:
• When turning at an intersection off
the designated route guidance.
• If you set more than 1 destination but
skip any of them, auto reroute will
display a route returning to the desti-
nation on the previous route.
• When turning at an intersection for
which there is no route guidance.
• When passing through an intersec-
tion for which there is no route guid-
ance.
• During auto reroute, the route guid-
ance may not be available for the
next turn to the right or left.
• During high speed driving, it may take
a long time for auto reroute to oper-
ate. In auto reroute, a detour route
may be shown.
• After auto reroute, the route may not
be changed.
• If an unnecessary U-turn is shown or
announced.
• If a location has multiple names and
the system announces 1 or more of
them.
• When a route cannot 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.
3-6. Tips for operating the navigation system
• When a portion of the route has regu-
lations prohibiting the entry of the
vehicle that vary by time or season or
other reasons.
• The road and map data stored in the
navigation system may not be com-
plete or may not be the latest version.
●
This navigation system uses tire turn-
ing data and is designed to work with
factory-specified tires for the vehicle.
Installing tires that are larger or
smaller than the originally equipped
diameter may cause inaccurate dis-
play of the current position. The tire
pressure also affects the diameter of
the tires, so make sure that the tire
pressure of all 4 tires is correct.
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