2015 Lexus IS250 Navigation Manual

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1. LEXUS PARKING ASSIST MONITOR
IS250/350_Navi_U
5. 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 your Lexus
dealer.
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 check-
ing the vehicle’s surroundings.
(Use the monitor again once
conditions have been im-
proved.)
The procedure for adjusting
the picture quality of the park-
ing assist monitor is the same
as the procedure for adjusting
the navigation screen.
(→ P. 44)
The image is blurryDirt or foreign matter (such as
water droplets, snow, mud
etc.) is adhering to the cam-
era.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 alignmentThe camera or surrounding
area has received a strong im-
pact.Have the vehicle inspected by
your Lexus dealer.
The guide lines are very far
out of alignmentThe camera position is out of
alignment.Have the vehicle inspected by
your Lexus dealer.
•The vehicle is tilted. (There
is a heavy load on the vehi-
cle, tire pressure is low due
to a tire puncture, 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 check-
ing the vehicle’s surroundings.
The estimated course lines
move even though the steer-
ing wheel is straightThere is a malfunction in the
signals being output by the
steering sensor.Have the vehicle inspected by
your Lexus dealer.

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1. LEXUS PARKING ASSIST MONITOR
PERIPHERAL MONITORING SYSTEM
IS250/350_Navi_U
7
Guide lines are not displayedThe trunk is open.Close the trunk.
If this does not resolve the
symptom, have the vehicle in-
spected by your Lexus dealer.
The estimated course lines
are not displayed•The steering wheel has
been moved while the bat-
tery was being reinstalled.
• Battery power is low.
• 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 in-
spected by your Lexus dealer.
SymptomLikely causeSolution

298
IS250/350_Navi_U
2. INTUITIVE PARKING ASSIST
1. INTUITIVE PARKING ASSIST*
Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
1Turn the intuitive parking assist on/off.
zWhen on, the indicator light comes on to
inform the driver that the system is opera-
tional.
The distance to obstacles measured by
the sensors is communicated via the dis-
play and a buzzer when parallel parking
or maneuvering into a garage. Always
check the surrounding area when using
this system.
TYPES OF SENSORS
*: If equipped
INTUITIVE PARKING ASSIST
SWITCH

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2. INTUITIVE PARKING ASSIST
IS250/350_Navi_U
PERIPHERAL MONITORING SYSTEM
7
■MULTI-INFORMATION DISPLAY
Front corner sensors operation
Front center sensors operation
Rear corner sensors operation
Rear center sensors operation
■NAVIGATION DISPLAY
X When the vehicle is moving forward
: Select to mute the buzzer sounds.
zThe graphic is automatically displayed
when an obstacle is detected. The screen
can be set so that the graphic is not dis-
played. ( →P. 3 0 6 )
XWhen the vehicle is moving backward
zA simplified image is displayed on the
right upper corner of the screen when
an obstacle is detected.
DISPLAY
When the sensors detect an obstacle,
the graphic is shown on the multi-infor-
mation display and navigation display
according to position and distance to
the obstacle.

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2. INTUITIVE PARKING ASSIST
IS250/350_Navi_U
■CORNER SENSORS
■ CENTER SENSORS
THE DISTANCE DISPLAY AND BUZZER
When a sensor detects an obstacle, the direction of and the approximate distance to
the obstacle are displayed and the buzzer sounds.
Level1234
Display example
BuzzerMediumFastContinuous
Level1234
Display example
BuzzerSlowMediumFastContinuous

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2. INTUITIVE PARKING ASSIST
IS250/350_Navi_U
PERIPHERAL MONITORING SYSTEM
7
■DETECTION LEVEL AND APPROXIMATE DISTANCE TO AN OBSTA-
CLE
Level1234
Front corner
sensors1.6 to 1.3 ft.
(50 to 40 cm)1.3 to 1.0 ft.
(40 to 30 cm)1.0 ft. (30 cm) or less
Front center sensors3.3 to 1.6 ft.
(100 to 50 cm)1.6 to 1.3 ft.
(50 to 40 cm)1.3 to 1.0 ft.
(40 to 30 cm)1.0 ft. (30 cm) or less
Rear corner sensors2.0 to 1.5 ft.
(60 to 45 cm)1.5 to 1.0 ft.
(45 to 30 cm)1.0 ft. (30 cm) or less
Rear center sensors4.9 to 2.0 ft.
(150 to 60 cm)2.0 to 1.5 ft.
(60 to 45 cm)1.5 to 1.1 ft.
(45 to 35 cm)1.1 ft. (35 cm) or less
INFORMATION
●Settings (e.g. buzzer volume) can be changed. ( →P. 3 0 6 )

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2. INTUITIVE PARKING ASSIST
IS250/350_Navi_U
Approximately 1.6 ft. (50 cm)
Approximately 2.0 ft. (60 cm)
Approximately 3.3 ft. (100 cm)
Approximately 4.9 ft. (150 cm)
zThe diagram shows the detection range of
the sensors. Note that the sensors cannot
detect obstacles that are extremely close to
the vehicle.
z The range of the sensors may change
depending on the shape of the object etc. z
There is dirt, snow or ice on a sensor.
z A sensor is frozen.
z A sensor is covered in any way.
z The vehicle is leaning considerably to one
side.
z On an extremely bumpy road, on an
incline, on gravel, or on grass
z The vicinity of the vehicle is noisy due to
vehicle horns, motorcycle engines, air
brakes of large vehicles, or other loud
noises producing ultrasonic waves.
z There is another vehicle equipped with
parking assist-sensors in the vicinity.
z A sensor is coated with a sheet of spray or
heavy rain.
z The vehicle is equipped with a fender pole
or radio antenna.
z Towing eyelets are installed.
z A bumper or sensor receives a strong
impact.
DETECTION RANGE OF THE
SENSORSSENSOR DETECTION
INFORMATION
Certain vehicle conditions and the sur-
rounding environment may affect the
ability of a sensor to correctly detect an
obstacle. Particular instances where this
may occur are listed below.

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2. INTUITIVE PARKING ASSIST
IS250/350_Navi_U
PERIPHERAL MONITORING SYSTEM
7
zThe vehicle is approaching a tall or right-
angled curb.
z In harsh sunlight or intense cold weather.
z A non-genuine Lexus suspension (lowered
suspension etc.) is installed.
z The shape of the obstacle may prevent a
sensor from detecting it. Pay particular
attention to the following obstacles:
• Wires, fences, ropes, etc.
• Cotton, snow and other materials that
absorb sound waves
• Sharply-angled objects
• Low obstacles
• Tall obstacles with upper sections project- ing outwards in the direction of your vehi-
cle
z In addition to the examples above, there
are instances in which, because of their
shapes, signs and ot her objects may be
judged by a sensor to be closer than they
are.
CAUTION
● Caution when using the intuitive parking
assist-sensor
Observe the following precautions.
Failing to do so may result in the vehicle
being unable to be driven safely and pos-
sibly cause an accident.
• Do not use the sensor at speeds in excess of 6 mph (10 km/h).
• Do not attach any accessories within the sensor range.
● Even though sensors which are function-
ing properly continue to detect obstacles,
never use the intuitive parking assist if
one more sensor(s) may be malfunction-
ing.