LEXUS RX 350 L (2019 year). Instruction - part 21

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The intuitive parking assist can be operated when

●

Front corner sensors:
• The engine switch is in IGNITION ON mode.

• The shift lever is in other than P.

• The vehicle speed is less than about 6 mph (10 km/h).

(At any speed when the shift lever is in R)

●

Front center sensors:
• The engine switch is in IGNITION ON mode.

• The shift lever is in other than P or R.

• The vehicle speed is less than about 6 mph (10 km/h).

●

Rear corner and rear center sensors:
• The engine switch is in IGNITION ON mode.

• The shift lever is in R.

■

Intuitive parking assist display

●

Vehicles with a Lexus Display Audio system/navigation system (8-inch display): When

an object is detected while the Lexus parking assist monitor or panoramic view monitor

is in use, the warning indicator will appear in the upper part of the screen even if the dis-

play setting has been set to off.

●

Vehicles with a navigation system (12.3-inch display): If the intuitive parking assist dis-

play is set to on, detected objects will also be displayed on the panoramic view monitor.

For details, refer to “NAVIGATION SYSTEM OWNER’S MANUAL”.

■

Sensor detection information

●

The sensor’s detection areas are limited to the areas around the vehicle’s bumper.

●

Certain vehicle conditions and the surrounding environment may affect the ability of a

sensor to correctly detect an object. Particular instances where this may occur are

listed below.
• There is dirt, snow or ice on the sensor. (Wiping the sensors will resolve this prob-

lem.)

• 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.

• When a sensor or the area around a sensor is extremely hot or cold.

• 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 bumper or sensor receives a strong impact.

• If the vehicle is significantly tilted.

• 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 objects draw too close to the sensor.

• 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 a sensor to be closer than they are.

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The shape of the object may prevent a sensor from detecting it. Pay particular attention

to the following objects:
• 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 vehi-

cle

●

The following situations may occur during use.
• Depending on the shape of the object and other factors, the detection distance may

shorten, or detection may be impossible.

• Objects may not be detected if they are too close to the sensor.

• There will be a short delay between object detection and display. Even at slow

speeds, there is a possibility that the object will come within the sensor’s detection

areas before the display is shown and the buzzer 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 audio system or air flow noise

of the air conditioning system.

■

If “Clean Parking Assist Sensor” is displayed on the multi-information display
A sensor may be dirty or covered with snow or ice. In such cases, if it is removed from the

sensor, the system should return to normal.
Also, due to the sensor being frozen at low temperatures, a malfunction display may

appear or an object may not be detected. If the sensor thaws out, the system should

return to normal.

■

If “Parking Assist Malfunction” is displayed on the multi-information display
Depending on the malfunction of the sensor, the device may not be working normally.

Have the vehicle inspected by your Lexus dealer.

■

Certification



For vehicles sold in Canada

This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme a la norme NMB-001 du Canada.

■

Customization
Some functions can be customized. (

P. 332, 722)

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WARNING

■

When using the intuitive parking assist
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 6 mph (10 km/h).

●

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 vehi-

cle) for safety, and drive slowly, using the brake to control the vehicle’s speed.

●

Do not install accessories within the sensors’ detection areas.

●

The vehicle is equipped with a fender pole or wireless antenna.

●

The front or rear bumper or a sensor receives a strong impact.

●

A non-genuine Lexus suspension (lowered suspension, etc.) is installed.

●

Towing eyelets are installed.

●

A backlit license plate is installed.

■

When using intuitive parking assist
In the following situations, the system may not function correctly due to a sensor mal-

function, etc. Have the vehicle checked by your Lexus dealer.

●

The intuitive parking assist operation display flashes, and a buzzer sounds when no

obstacles are detected.

●

If the area around a sensor collides with something, or is subjected to strong impact.

●

If the bumper 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 if 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.

●

When using a high pressure washer to wash the vehicle, do not spray the sensors

directly, as doing so may cause a sensor to malfunction.

●

When using steam to clean the vehicle, do not direct steam too close to the sensors

as doing so may cause a sensor to malfunction.

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The system will operate in situations such as the following if a stationary object is
detected in the traveling direction of the vehicle.

◆

When traveling at a low speed and the brake pedal is not depressed, or is
depressed late



: If equipped

Intelligent Clearance Sonar (ICS)



If a collision with a wall or other stationary object may occur due to the vehicle
suddenly moving forward due to an accidental accelerator pedal operation,
the vehicle moving the unintended direction due to the wrong shift position
being selected, or while parking or traveling at low speeds, the sensors detect
stationary objects, such as a wall, in the traveling direction of the vehicle, and
the system operates to lessen an impact with a stationary object and reduce
the resulting collision damage.

Examples of system operation

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◆

When the accelerator pedal is depressed excessively

◆

When the vehicle moves in the unintended direction due to the wrong shift
position being selected

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If a rear radar sensor detects a vehicle approaching from the right or left at the
rear of the vehicle and the system determines that the possibility of a collision is
high, this function will perform brake control to reduce the likelihood of an
impact with the approaching vehicle.

■

Examples of system operation
This function will operate in situations such as the following if a vehicle is
detected in the traveling direction of the vehicle.

◆

When reversing, a vehicle is approaching and the brake pedal is not
depressed, or is depressed late

Rear Cross Traffic Auto Brake function (if equipped)

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Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors

Select 

 on the multi-information

display.

Press 

 or 

 of the meter con-

trol switch and select “ICS”.

Press 

 of the meter control

switch.

Select the “Yes” and push 

.

When the Intelligent Clearance Sonar is disabled, the ICS OFF indicator illuminates.

To re-enable the system when it was disabled, select 

 on the multi-information dis-

play, select “ICS” and then “On”. If disabled using this method, the system will not be

re-enabled by turning the engine switch off and then to IGNITION ON mode.

Types of sensors



Except F SPORT models



F SPORT models

1

2
3
4

Turning the Intelligent Clearance Sonar system on/off

1

2

3

4

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If the engine output restriction control or brake control operates, a buzzer will
sound and a message will be displayed on the multi-information display to alert
the driver.

Depending on the situation, engine output restriction control will operate to either

limit acceleration or restrict output as much as possible.

Displays and buzzers for engine output restriction control and brake
control

Control

Situation

Multi-information 

display

ICS OFF 

Indicator

Buzzer

Engine output 

restriction control is 

operating (acceler-

ation restriction)

Acceleration 

greater than a cer-

tain amount is not 

possible.

“Object Detected 

Acceleration 

Reduced”

Not illu-

minated

Short 

beep

Engine output 

restriction control is 

operating (output 

restricted as much 

as possible)

Stronger-than-nor-

mal brake opera-

tion is necessary.

“BRAKE!”

Brake control is 

operating

Emergency brak-

ing is necessary.

Vehicle stopped by 

system operation

The vehicle has 

been stopped by 

brake control oper-

ation.

“Switch to Brake”

Illumi-

nated

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If the Intelligent Clearance Sonar function detects that a collision with a wall or
other stationary object is possible, the engine output will be restricted to restrain
any increase in the vehicle speed. (Engine output restriction control: See A
below.)
Additionally, if the accelerator pedal continues to be depressed, the brakes will
be applied automatically to reduce the vehicle speed. (Brake control: See B
below.)

Intelligent Clearance Sonar function

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On

Off

Time

Down

On

Off

Time

On

Off

Time

Down

Up

Accelerator pedal
Brake pedal
Engine output
Braking force

Start of control
High possibility of a collision
Extremely high possibility of a colli-
sion

1

2
3
4

5
6
7

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The Intelligent Clearance Sonar function will operate when
The function will operate when the ICS OFF indicator is not illuminated or flashing 

(

P. 339, 347) and all of the following conditions are met:

●

Engine output restriction control
• The Intelligent Clearance Sonar system is enabled.

• The vehicle speed is 10 mph (15 km/h) or less.

• There is a stationary object in the traveling direction of the vehicle and 6 to 13 ft. (2

to 4 m) away.

• The system determines that a stronger-than-normal brake operation is necessary to

avoid a collision.

●

Brake control
• Engine output restriction control is operating.

• The system determines that an emergency brake operation is necessary to avoid a

collision.

■

The Intelligent Clearance Sonar function will stop operating when
The function will stop operating if any of the following conditions are met:

●

Engine output restriction control
• The Intelligent Clearance Sonar system is disabled.

• The collision becomes avoidable with normal brake operation.

• The stationary object is no longer 6 to 13 ft. (2 to 4 m) away in the traveling direction

of the vehicle.

●

Brake control
• The Intelligent Clearance Sonar system is disabled.

• Approximately 2 seconds elapse after the vehicle is stopped by brake control.

• The brake pedal is depressed after the vehicle is stopped by brake control.

• The stationary object is no longer 6 to 13 ft. (2 to 4 m) away in the traveling direction

of the vehicle.

■

Detection range of the Intelligent Clearance Sonar function
The detection range of the Intelligent Clearance Sonar function differs from the detec-

tion range of the intuitive parking assist. (

P. 331)

Therefore, even if the intuitive parking assist detects an object and provides a warning,

the Intelligent Clearance Sonar function may not start operating.

■

If the Intelligent Clearance Sonar function has operated
If the vehicle is stopped due to operation of the Intelligent Clearance Sonar function, the

Intelligent Clearance Sonar system will be disabled and the ICS OFF indicator will illumi-

nate.

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Re-enabling the Intelligent Clearance Sonar system 
To re-enable the Intelligent Clearance Sonar system when it is disabled due to operation

of the Intelligent Clearance Sonar function, either enable the system again (

P. 339), or

turn the engine switch off and then back to IGNITION ON mode.
Additionally, if the object becomes no longer in the traveling direction of the vehicle or if

the traveling direction of the vehicle changes (such as changing from moving forward to

backing up, or from backing up to moving forward), the system will be re-enabled auto-

matically.

■

Objects that the Intelligent Clearance Sonar function may not detect
The sensors may not be able to detect certain objects, such as the following.

●

Cotton cloth, snow, and other materials that are poor reflectors of ultrasonic waves. 

(People may also not be detected depending on the type of clothing they are wearing.)

●

Objects which are not perpendicular to the ground, are not perpendicular to the travel-

ing direction of the vehicle, are uneven or are waving.

●

Low objects

●

Thin objects such as wires, fences, ropes and signposts

●

Objects that are extremely close to the bumper

■

Intuitive parking assist buzzer
Regardless of whether the intuitive parking assist system is enabled or not (

P. 326), if

the Intelligent Clearance Sonar system is enabled (

P. 339), the front or rear sensors

detect an object and brake control is performed, the intuitive parking assist buzzer will

sound to notify the driver of the approximate distance to the object.

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Situations in which the Intelligent Clearance Sonar function may operate even if there

is no possibility of a collision
In some situations such as the following, the Intelligent Clearance Sonar function may

operate even though there is no possibility of a collision.

●

Vehicle surroundings

• When driving toward a banner, flag, low-hanging branch or boom barrier (such as

those used at railroad crossings, toll gates and parking lots).

• When driving on a narrow path surrounded by a structure, such as in a tunnel or on

an iron bridge

• When parallel parking

• When there is a rut or hole in the surface of the road

• When driving on a metal cover (grating), such as those used for drainage ditches

• When driving on a steep slope

• If a sensor is hit by a large amount of water, such as when driving on a flooded road

●

Weather
• If a sensor is covered with ice, snow, dirt, etc. (when cleared, the system will return to

normal)

• If heavy rain or water strikes a sensor

• When driving in inclement weather such as fog, snow or a sandstorm

●

Other ultrasonic waves sources
• When vehicle horns, vehicle detectors, motorcycle engines, air brakes of large vehi-

cles, the clearance sonar of other vehicles or other devices which produce ultra-

sonic waves are near the vehicle

• If a sticker or an electronic component, such as a backlit license plate (especially flu-

orescent type), fog lights, a fender pole or wireless antenna is installed near a sensor

●

Changes in the vehicle posture
• If the vehicle is significantly tilted

• If the front of the vehicle is raised or lowered due to the carried load

• If the orientation of a sensor has been changed due to a collision or other impact

• When driving on a narrow road

• When driving on a gravel road or in an area

with tall grass

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If the Intelligent Clearance Sonar function operates unnecessarily such as at a railroad

crossing
Even in the event that the Intelligent Clearance Sonar function operates unnecessarily,

such as at a railroad crossing, brake control will be canceled after approximately 2 sec-

onds, allowing you to proceed forward and leave the area, Brake control can also be

canceled by depressing the brake pedal. Depressing the accelerator pedal again will

allow you to proceed forward and leave the area.

■

Situations in which the Intelligent Clearance Sonar Brake function may not operate

properly
In some situations such as the following, this function may not operate properly.

●

Weather

• If a sensor is covered with ice, snow, dirt, etc. (when cleared, the system will return to

normal)

• If heavy rain or water strikes a sensor

• When driving in inclement weather such as fog, snow or a sandstorm

●

Vehicle surroundings
• When an object that cannot be detected is between the vehicle and a detected object

• If an object such as a vehicle, motorcycle, bicycle or pedestrian cuts in front of the

vehicle or runs out from the side of the vehicle.

●

Other ultrasonic waves sources
• When vehicle horns, vehicle detectors, motorcycle engines, air brakes of large vehi-

cles, the clearance sonar of other vehicles or other devices which produce ultra-

sonic waves are near the vehicle

• If a sticker or an electronic component, such as a backlit license plate (especially flu-

orescent type), fog lights, a fender pole or wireless antenna is installed near a sensor

●

Changes in the vehicle posture
• If the vehicle is significantly tilted

• If the front of the vehicle is raised or lowered due to the carried load

• If the orientation of a sensor has been changed due to a collision or other impact

• When a sensor or the area around a sensor

is extremely hot or cold

• When strong winds are blowing

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If a battery terminal has been disconnected and reconnected
The system needs to be initialized.
To initialize the system, drive the vehicle straight ahead for 5 seconds or more at a speed

of approximately 22 mph (35 km/h) or more.

■

If “ICS Unavailable” is displayed on the multi-information display and the ICS OFF indi-

cator is flashing

●

A sensor may be covered with ice, snow, dirt, etc. Remove the ice, snow, dirt, etc., from

the sensor to return the system to normal.
Also, due to ice forming on a sensor at low temperatures, a warning message may be

displayed or the sensor may not be able to detect an object. Once the ice melts, the

system will return to normal.

●

If this message continues to be displayed even after cleaning the sensor, or is displayed

even though the sensor is clean, have the vehicle inspected by your Lexus dealer.

●

Initialization may not have been performed after a battery terminal was disconnected

and reconnected. Initialize the system. (

P. 347)

■

If “ICS Malfunction Visit Your Dealer” is displayed on the multi-information display and

the ICS OFF indicator is flashing
The system may be malfunctioning. Have the vehicle inspected by your Lexus dealer.

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WARNING

■

Limitations of the Intelligent Clearance Sonar system
Do not overly rely on the system, as doing so may lead to an accident.

●

The driver is solely responsible for safe driving. Always drive carefully, taking care to

observe your surroundings. The Intelligent Clearance Sonar system is designed to

provide support to lessen the severity of collisions. However, it may not operate in

some situations.

●

The Intelligent Clearance Sonar system is not designed to stop the vehicle com-

pletely. Additionally, even if the system has stopped the vehicle, it is necessary to

depress the brake pedal immediately as brake control will be canceled after approxi-

mately 2 seconds.

■

To ensure the Intelligent Clearance Sonar system can operate properly
Observe the following precautions regarding the sensors (

P. 339). Failure to do so

may cause a sensor to not operate properly, and may cause an accident.

●

Do not modify, disassemble or paint the sensors.

●

Do not replace a sensor with a part other than a genuine part.

●

Do not subject a sensor or its surrounding area to a strong impact.

●

Do not damage the sensors, and always keep them clean.

Observe the following precautions regarding the radar sensors (

P. 316). Failure to

do so may cause a radar sensor to not operate properly, and may cause an accident.

●

Do not modify, disassemble or paint the sensors.

●

Do not replace a radar sensor with a part other than a genuine part.

●

Do not subject a radar sensor or its surrounding area to a strong impact.

●

Do not damage the radar sensors, and always keep the radar sensors and their sur-

rounding area on the bumper clean.

■

Handling the suspension
Do not modify the suspension, as changes to the height or inclination of the vehicle may

prevent the sensors from detecting objects correctly or cause the system to not oper-

ate or operate unnecessarily.