135
5. GPS (GLOBAL POSITIONING SYSTEM)
3
NAVIGATION SYSTEM
ISF_IS_ISC_Navi_EE
Accurate current 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 motorway and surface streets
run in parallel.
• After moving by ferry or vehicle car-
rier.
• When a long route is searched during
high speed driving.
• When driving without setting the cur-
rent position calibration correctly.
• After repeating a change of direction
by going forward and backward, or
turning on a turntable in a parking lot.
• When leaving a covered parking lot or
parking garage.
• When a roof carrier is installed.
• When driving with tyre chains
installed.
• When the tyres are worn.
• After replacing a tyre or tyres.
• When using tyres that are smaller or
larger than the factory specifications.
• When the tyre pressure in any of the 4
tyres 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 intersection
for which there is no route guidance.
• 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
operate. 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.
• 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.
If the vehicle cannot receive GPS sig-
nals, the current position can be
adjusted manually. For information
on setting the current position cali-
bration, see page 127.
325
1. LEXUS PARKING ASSIST MONITOR
10
PERIPHERAL MONITORING SYSTEM
ISF_IS_ISC_Navi_EE
CAUTION
The instructions given are only guide-
lines. When and how much to turn the
steering wheel will vary according to
traffic conditions, road surface condi-
tions, vehicle condition, etc. when
parking. It is necessary to be fully
aware of this before using the parking
assist system.
When parking, be sure to check that
the parking space will accommodate
your vehicle before maneuvering into
it.
Do not use system in the following
cases:
• On icy or slick road surfaces, or in
snow
• When using tyre chains
• When the trunk is not closed com-
pletely
• When the retractable hardtop is open
partially. (IS250C)
• On roads that are not flat or straight,
such as curves or slopes
In low temperatures, the screen may
darken or the image may become
faint. The image could distort when
the vehicle is moving, or you may
become unable to see the image on
the screen. Be sure to visually check
all around the vehicle both directly
and using the mirrors before proceed-
ing.
If the tyre sizes are changed, the posi-
tion of the guide lines displayed on
the screen may change.
The camera uses a special lens. The
distances between objects and pedes-
trians that appear in the image dis-
played on the screen will differ from
the actual distances. (See page 345.)
