Lexus IS300h 2013 Owner's Manual

2694-5. Using the driving support systems
4
Driving
IS300h_EE(OM53B95E)
CAUTION
Before using the LDA system
Do not rely solely on the LDA system. The LDA system does not drive the
vehicle automatically, nor does it reduce the amount of care you need to take.
As such, the driver must always assume full responsibility for understanding
his/her surroundings, for operating the steering wheel to correct the driving
line, and for driving safely.
Inappropriate or negligent driving could lead to an accident.
To avoid operating the LDA by mistake
Switch the LDA system off using the LDA switch when not in use.
Situations unsuitable for LDA system
Do not use the LDA system in any of the following situations.
Otherwise, the system may not function correctly and could result in an acci-
dent.
When driving with tire chains, a spare tire, or similar equipment
When there are objects or structures along the roadside that might be misin-
terpreted as lane markers (such as guardrails, a curb, reflector posts, etc.)
When driving on snowy roads
When pavement lane markers are difficult to see due to rain, snow, fog, sand
dust, etc.
When there are visible lines on the pavement from road repairs, or if the
remains of old lane markers are still visible on the road
When driving on a road with lane closures due to maintenance, or when driv-
ing in a temporary lane

2704-5. Using the driving support systems
IS300h_EE(OM53B95E)
NOTICE
To prevent damage to or incorrect operation of the LDA system
Do not modify the headlights or attach stickers to the surface of the lights.
Do not modify the suspension or replace it with non-genuine parts.
Do not install or place anything on the hood or the grille. Also, do not install a
grille guard (bull bars, kangaroo bar etc.).
If your windshield needs repairs, contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
Camera sensor
Observe the following to ensure that the LDA system functions correctly.
Keep the windshield clean at all times.
Performance could be affected if the windshield is dirty, or if raindrops, con-
densation or ice are adhering to the windshield.
Do not spill liquid onto the camera sensor
Do not attach window tinting to the windshield.
Do not install an antenna in front of the camera lens.
If the windshield is fogged up, use the windshield defogger to remove fog
from the windshield.
When it is cold, using the heater with air blowing to the feet may allow the
upper part of the windshield to fog up. This will have a negative effect on the
images.
Do not scratch the camera lens, or let it get dirty.
When cleaning the inside of the windshield, be careful not to get any glass
cleaner etc. on the lens. Also, do not touch the lens.
For lens repair, contact any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
Do not change the installation position or direction of the camera sensor or
remove it. The direction of the camera sensor is precisely adjusted.
Do not subject the camera sensor to strong impact or force, and do not disas-
semble the camera sensor.
Do not replace windshield with non-genuine windshield.
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
Do not attach a sticker or other items to
the windshield near the camera sensor.

2714-5. Using the driving support systems
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Driving
IS300h_EE(OM53B95E)
Types of sensors
Lexus parking assist-sensor switch
Turns the Lexus parking assist-
sensor on/off
When on, the indicator light
comes on to inform the driver that
the system is operational.
Lexus parking assist-sensor
: If equipped
The distance from your vehicle to nearby obstacles when parallel parking
or maneuvering into a garage is measured by the sensors and communi-
cated via the multi-information display, Lexus Display Audio screen (if
equipped) and a buzzer. Always check the surrounding area when using
this system.
Front center sensors
Front corner sensorsRear corner sensors
Rear center sensors1
2
3
4

2724-5. Using the driving support systems
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When the sensors detect an obstacle, a graphic is shown on the multi-
information display and Lexus Display Audio screen (if equipped)
depending on the position and distance to the obstacle.
Multi-information display
Front corner sensor detection
Front center sensor detection
Rear corner sensor detection
Rear center sensor detection
Lexus Display Audio screen (if equipped)
When the rear view monitor
system is not displayed
A graphic is automatically dis-
played when an obstacle is
detected. The screen can be set so
that the graphic is not displayed.
(P. 275)
: Select to mute the
buzzer sounds.
When the rear view monitor
system is displayed (insert dis-
play)
A simplified image is displayed
on the upper right corner of the
Lexus Display Audio screen
when an obstacle is detected.
Display
1
2
3
4
1
2

2734-5. Using the driving support systems
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Driving
IS300h_EE(OM53B95E)
Multi-information display and Lexus Display Audio screen (if
equipped)
Sensors that detect an obstacle will illuminate continuously or blink.
*1: Multi-information display
*2: Lexus Display Audio screen
Sensor detection display, obstacle distance
Display
Insert display
(Lexus Dis-
play Audio
screen only)Approximate distance to obstacle
Front corner sensor/
front center sensorRear corner sensor/
rear center sensor
(continuous)(blinking
slowly)
Front center sensor
only:
100 cm (3.3 ft.) to 50
cm (1.6 ft.)Rear center sensor
only:
150 cm (4.9 ft.) to 60
cm (2.0 ft.)
(continuous)(blinking)
50 cm (1.6 ft.) to 40
cm (1.3 ft.)60 cm (2.0 ft.) to 45
cm (1.5 ft.)
(continuous)(blinking rap-
idly)
40 cm (1.3 ft.) to 30
cm (1.0 ft.)
Rear corner sensor:
45 cm (1.5 ft.) to 30
cm (1.0 ft.)
Rear center sensor:
45 cm (1.5 ft.) to 35
cm (1.1 ft.)
(blinking*1 or
continuous
*2)
(continuous)
Less than 30 cm (1.0
ft.)
Rear corner sensor:
Less than 30 cm (1.0
ft.)
Rear center sensor:
Less than 35 cm (1.1
ft.)

2744-5. Using the driving support systems
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Buzzer operation and distance to an obstacle
A buzzer sounds when the sensors are operating.
The buzzer beeps faster as the vehicle approaches an obstacle. When
the vehicle comes within the following distance of the obstacle, the
buzzer sounds continuously:
• Front center sensors: Approximately 30 cm (1.0 ft.)
• Corner sensors: Approximately 30 cm (1.0 ft.)
• Rear center sensors: Approximately 35 cm (1.1 ft.)
When 2 or more obstacles are detected simultaneously, the buzzer
system responds to the nearest obstacle. If one or both come within
the above distances, the beep will repeat a long tone, followed by
fast beeps.
Approximately 100 cm (3.3 ft.)
Approximately 150 cm (4.9 ft.)
Approximately 50 cm (1.6 ft.)
Approximately 60 cm (2.0 ft.)
The diagram shows the detection
range of the sensors. Note that the
sensors cannot detect obstacles that
are extremely close to the vehicle.
The range of the sensors may change
depending on the shape of the object
etc.
Detection range of the sensors
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2
3
4

2754-5. Using the driving support systems
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Driving
IS300h_EE(OM53B95E)
You can change the warning beep volume and Lexus Display Audio
screen operating conditions.
Press the “MENU” button on the Lexus Display Audio controller. (P.
318)
Select “Setup” on the “Menu” screen.
Select “Vehicle” on the “Setup” screen.
Select “LEXUS park assist” on the “Vehicle settings” screen.
Select the desired button.
The alert volume can be
adjusted.
On or off can be selected for
Lexus parking assist-sensor
display.
Front or rear center sensors
display and tone indication can
be set.
The Lexus parking assist-sensor can be operated when
Front center sensors:
• The power switch is in ON mode.
• The shift lever is in a position other than P or R.
• The vehicle speed is less than about 10 km/h (6 mph).
Front corner sensors:
• The power switch is in ON mode.
• The shift lever is in a position other than P.
• The vehicle speed is less than about 10 km/h (6 mph).
(At any speed when the shift lever is in R)
Rear corner and rear center sensors:
• The power switch is in ON mode.
• The shift lever is in R.
Lexus parking assist-sensor display
When an obstacle is detected while the rear view monitor system is in use, the
warning indicator will appear in the top right of the screen even if the display set-
ting has been set to off.
Setting up Lexus parking assist-sensor
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2
3
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5
1
2
3

2764-5. Using the driving support systems
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Sensor detection information
The sensor’s detection areas are limited to the areas around the vehicle’s front
corner and rear bumpers.
Certain vehicle conditions and the surrounding environment may affect the
ability of the sensor to correctly detect obstacles. Particular instances where this
may occur are listed below.
• There is dirt, snow or ice on the sensor. (Wiping the sensors will resolve this
problem.)
• The sensor is frozen. (Thawing the area will resolve this problem.)
In especially cold weather, if a sensor is frozen the screen may show an
abnormal display, or obstacles may not be detected.
• The sensor is covered in any way.
• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on grass.
• 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.
• There is another vehicle equipped with parking assist sensors in the vicinity.
• The sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or wireless antenna.
• Towing eyelets are installed.
• The bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or curved curb.
• In harsh sunlight or intense cold weather.
• The area directly under the bumpers is not detected.
• If obstacles draw too close to the sensor.
• A non-genuine Lexus suspension (lowered suspension etc.) is installed.
• People may not be detected if they are wearing certain types of clothing.
In addition to the examples above, there are instances in which, because of their
shape, signs and other objects may be judged by the sensor to be closer than they
are.
The shape of the obstacle may prevent the sensor from detecting it. Pay particu-
lar 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 projecting outwards in the direction of
your vehicle
The following situations may occur during use.
• Depending on the shape of the obstacle and other factors, the detection dis-
tance may shorten, or detection may be impossible.
• Obstacles may not be detected if they are too close to the sensor.
• There will be a short delay between obstacle detection and display. Even at
slow speeds, there is a possibility that the obstacle will come within the sen-
sor’s detection areas before the display is shown and the warning beep
sounds.
• Thin posts or objects lower than the sensor may not be detected when
approached, even if they have been detected once.
• It might be difficult to hear beeps due to the volume of the audio system or
air flow noise of the air conditioning system.

2774-5. Using the driving support systems
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Driving
IS300h_EE(OM53B95E)
If a message is displayed on the multi-information display
P. 515, 516

2784-5. Using the driving support systems
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CAUTION
When using the Lexus parking assist-sensor
Observe the following precautions.
Failing to do so may result in the vehicle being unable to be driven safely and
possibly cause an accident.
Do not use the sensor at speeds in excess of 10 km/h (6 mph).
The sensors’ detection areas and reaction times are limited. When moving
forward or reversing, check the areas surrounding the vehicle (especially the
sides of the vehicle) for safety, and drive slowly, using the brake to control the
vehicle’s speed.
Do not install accessories within the sensors’ detection areas.
NOTICE
When using Lexus parking assist-sensor
In the following situations, the system may not function correctly due to a sen-
sor malfunction etc. Have the vehicle checked by any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional.
The Lexus parking assist-sensor operation display flashes, and a beep sounds
when no obstacles are detected.
If the area around a sensor collides with something, or is subjected to strong
impact.
If the bumper or grille collides with something.
If the display shows continuously without beeping, except when the buzzer
mute switch has been turned on.
If a display error occurs, first check the sensor.
If the error occurs even when there is no ice, snow or mud on the sensor, it is
likely that the sensor is malfunctioning.
Notes when washing the vehicle
Do not apply intensive bursts of water or steam to the sensor area.
Doing so may result in the sensor malfunctioning.