2013 Lexus IS300h Navigation manual

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1. LEXUS PARKING ASSIST MONITOR
6
PERIPHERAL MONITORING SYS-
IS300h/250_Navi_EE
The distance guide lines and the vehicle
width extension guide lines may not
actually be parallel with the dividing
lines of the parking space, even when
they appear to be so. Be sure to check
visually.
The distances between the vehicle
width extension guide lines and the left
and right dividing lines of the parking
space may not be equal, even when
they appear to be so. Be sure to check
visually.
The distance guide lines give a distance
guide for flat road surfaces. In any of
the following situations, there is a mar-
gin of error between the guide lines on
the screen and the actual distance /
course on the road.
DIFFERENCES BETWEEN
THE SCREEN AND THE
ACTUAL ROADWHEN THE GROUND
BEHIND THE VEHICLE
SLOPES UP SHARPLY
The distance guide lines will appear
to be closer to the vehicle than the ac-
tual distance. Because of this, objects
will appear to be farther away than
they actually are. In the same way,
there will be a margin of error be-
tween the guidelines and the actual
distance/course on the road.

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WHEN THE GROUND
BEHIND THE VEHICLE
SLOPES DOWN SHARPLY
The distance guide lines will appear
to be further from the vehicle than
the actual distance. Because of this,
objects will appear to be closer than
they actually are. In the same way,
there will be a margin of error be-
tween the guidelines and the actual
distance/course on the road.WHEN ANY PART OF THE
VEHICLE SAGS
When any part of the vehicle sags
due to the number of passengers or
the distribution of the load, there is a
margin of error between the guide
lines on the screen and the actual dis-
tance/course on the road.
A margin of error

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1. LEXUS PARKING ASSIST MONITOR
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PERIPHERAL MONITORING SYS-
IS300h/250_Navi_EEEstimated course lines
WHEN APPROACHING
THREE-DIMENSIONAL
OBJECTS
The estimated course lines target flat
surfaced objects (such as the road). It
is not possible to determine the posi-
tion of three-dimensional objects
(such as vehicles) using the estimat-
ed course lines and distance guide
lines. When approaching a three-di-
mensional object that extends out-
ward (such as the flatbed of a truck),
be careful of the following.
ESTIMATED COURSE LINES
Visually check the surroundings and
the area behind the vehicle. In the
case shown below, the truck appears
to be outside of the estimated course
lines and the vehicle does not look as
if it hits the truck. However, the rear
body of the truck may actually cross
over the estimated course lines. In re-
ality if you back up as guided by the
estimated course lines, the vehicle
may hit the truck.

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1. LEXUS PARKING ASSIST MONITOR
IS300h/250_Navi_EE
DISTANCE GUIDE LINES
Visually check the surroundings and
the area behind the vehicle. On the
screen, it appears that a truck is park-
ing at point B. However, in reality if
you back up to point A, you will hit
the truck. On the screen, it appears
that A is closest and C is furthest
away. However, in reality, the dis-
tance to A and C is the same, and B
is farther than A and C.
Positions of A, B and C
C
A B
C
AB

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IS300h/250_Navi_EE
6
PERIPHERAL MONITORING SYS-
6. THINGS YOU SHOULD KNOW
If you notice any of the following symptoms, refer to the likely cause and the
solution, and re-check.
If the symptom is not resolved by the solution, have the vehicle inspected by
any authorized Lexus dealer or repairer, or another duly qualified and equipped
professional.
IF YOU NOTICE ANY SYMPTOMS
SymptomLikely causeSolution
The image is difficult to seeThe vehicle is in a dark
area
The temperature around
the lens is either high or
low
The outside temperature
is low
There are water droplets
on the camera
It is raining or humid
Foreign matter (mud etc.)
is adhering to the camera
Sunlight or headlights are
shining directly into the
camera
The vehicle is under fluo-
rescent lights, sodium
lights, mercury lights etc.Back up while visually
checking the vehicle’s sur-
roundings. (Use the moni-
tor again once conditions
have been improved.)
The procedure for adjusting
the picture quality of the
parking assist monitor is
the same as the procedure
for adjusting the navigation
screen. (P.45)
The image is blurryDirt or foreign matter (such
as water droplets, snow,
mud etc.) is adhering to the
camera.Rinse the camera lens with
water and wipe it clean
with a soft cloth.
Wash with a mild soap if
the dirt is stubborn.
The image is out of align-
mentThe camera or surrounding
area has received a strong
impact.Have the vehicle inspected
by any authorized Lexus
dealer or repairer, or anoth-
er duly qualified and
equipped professional.

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1. LEXUS PARKING ASSIST MONITOR
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The guide lines are very far
out of alignmentThe camera position is out
of alignment.Have the vehicle inspected
by any authorized Lexus
dealer or repairer, or anoth-
er duly qualified and
equipped professional.
The vehicle is tilted.
(There is a heavy load on
the vehicle, tyre pressure
is low due to a tyre punc-
ture, etc.)
The vehicle is used on an
incline.
If this happens due to these
causes, it does not indicate
a malfunction. Back up
while visually checking the
vehicle's surroundings.
The estimated course lines
move even though the
steering wheel is straightThere is a malfunction in
the signals being output by
the steering sensor.Have the vehicle inspected
by any authorized Lexus
dealer or repairer, or anoth-
er duly qualified and
equipped professional.
Guide lines are not dis-
playedThe trunk is open.Close the trunk.
If this does not resolve the
symptom, have the vehicle
inspected by any autho-
rized Lexus dealer or re-
pairer, or another duly
qualified and equipped pro-
fessional.
SymptomLikely causeSolution

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PERIPHERAL MONITORING SYS-
IS300h/250_Navi_EE
“System initialising.” is
displayedThe steering wheel has
been moved while the
12-volt battery was being
reinstalled.
The steering sensor has
been reinstalled.
There is a malfunction in
the signals being output
by the steering sensor.Stop the vehicle, and turn
the steering wheel as far as
it will go to the left and
right.
If this does not resolve the
symptom, have the vehicle
inspected by any autho-
rized Lexus dealer or re-
pairer, or another duly
qualified and equipped pro-
fessional.
On the system initializa-
tion screen, select “?” to
display the operating pro-
cedure.
SymptomLikely causeSolution

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