2013 Lexus IS300h sensor

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
IS300h_EE(OM53B95E)
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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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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2764-5. Using the driving support systems
IS300h_EE(OM53B95E)
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.

2784-5. Using the driving support systems
IS300h_EE(OM53B95E)
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.

2804-5. Using the driving support systems
IS300h_EE(OM53B95E)
Screen description
The rear view monitor system screen will be displayed if the shift lever
is shifted to R while the power switch is in ON mode.
Vehicle width guide lines
The line indicates a guide path when the vehicle is being backed straight
up.
The displayed width is wider than the actual vehicle width.
Vehicle center guide lines
These lines indicate the estimated vehicle center on the ground.
Distance guide line
The line shows points approximately 0.5 m (1.5 ft.) (red) from the center of
the edge of the bumper.
Distance guide line
The line shows distance behind the vehicle, a point approximately 1 m (3
ft.) (blue) from the edge of the bumper.
Lexus parking assist-sensor display (if equipped)
If an obstacle is detected while the Lexus parking assist-sensor is on, a dis-
play is shown at the top right corner of the screen.
Using the rear view monitor system
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2994-5. Using the driving support systems
4
Driving
IS300h_EE(OM53B95E)
Pre-crash warning
When a high possibility of a fron-
tal collision is detected, the pre-
crash safety system warning light
flashes, a buzzer sounds and a
message is shown on the multi-
information display to urge the
driver to take evasive action.
Pre-crash brake assist
When there is a high possibility of a frontal collision, the system
applies greater braking force in relation to how strongly the brake
pedal is depressed. The system may not warn the driver using a warn-
ing light, warning display and buzzer when the system detects and
judges braking operations.
Pre-crash braking
When there is a high possibility of a frontal collision, the system warns
the driver using a warning light, warning display and buzzer. If the sys-
tem determines that a collision is unavoidable, the brakes are automati-
cally applied to reduce the collision speed.
Suspension control (vehicles with Adaptive Variable Suspension Sys-
tem)
PCS (Pre-Crash Safety system)

: If equipped
When the radar sensor detects the possibility of a frontal collision, brakes
are automatically engaged to lessen impact as well as vehicle damage.
The pre-crash safety system can be turned on and off as necessary by
operating the switch. (P. 301)

3014-5. Using the driving support systems
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Driving
IS300h_EE(OM53B95E)
Enabled
Disabled
The pre-crash safety system warning
light comes on when pre-crash
safety system is disabled.
The radar sensor detects vehicles or
other obstacles on or near the road
ahead and determines whether a
collision is imminent based on the
position, speed, and heading of the
obstacles.
Disabling pre-crash safety system
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Radar sensor