parking sensors LEXUS RX200T 2017 Owners Manual

3684-5. Using the driving support systems
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■Conditions under which the RCTA function will not detect a vehicle
The RCTA function is not designed to dete ct the following types of vehicles and/or objects:
●Vehicles approaching from directly behind
●Vehicles backing up in a parking space next to your vehicle
●Guardrails, walls, signs, parked vehi cles and similar stationary objects*
●Small motorcycles, bicycles, pedestrians, etc.*
●Vehicles moving away from your vehicle
●Vehicles approaching from the parking spaces next to your vehicle*
*: Depending on the conditions, detection of a vehicle and/or object may occur.
■Conditions under which the RCTA function may not function correctly
●The RCTA function may not detect vehicles correctly in the following situations:
• When the sensor is misaligned due to a strong impact to the sensor or its surround-
ing area • When mud, snow, ice, a sticker, etc. is covering the sensor or surrounding area onthe rear bumper
• When driving on a road surface that is wet with standing water during bad weather, such as heavy rain, snow, or fog• When multiple vehicles are approaching wi th only a small gap between each vehicle
• When a vehicle is approaching at high speed • When towing a trailer (vehicles with towing package)
●Vehicles that the sensors cannot detect due toobstructions
• When backing up on a slope with a sharp change in grade

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• Immediately after the RCTA function is turned on • Immediately after the engine is started with the RCTA function on
●Instances of the RCTA function unnecessarily detecting a vehicle and/or object mayincrease in the following situations:
• When a vehicle passes by the side of your vehicle
• When the distance between your vehicle and metal objects, such as a guardrail, wall, sign, or parked vehicle, which may reflect electrical waves toward the rear ofthe vehicle, is short
• When backing out of a shallow angle park- ing spot
• When the sensors cannot detect a vehicle due to obstructions
• When the parking space faces a street and
vehicles are being driven on the street

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Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
Press “ ” or “” of the meter control
switches, select .
Press “ ” or “” of the meter control
switches, select “Parking Assist”.
When on, the Lexus parking assist-
sensor indicator comes on to inform
the driver that the system is operational.
Lexus parking assist-sensor
: If equipped
The distance from your vehicle to ne arby obstacles when parallel parking or
maneuvering into a garage is measured by the sensors and communicated via
the displays and a buzzer. Always chec k the surrounding area when using this
system.
Types of sensors
Except F SPORT modelsF SPORT models
1
2
3
4
Turning Lexus parking assist-sensor on/off
1
2

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When the sensors detect an obstacle, the following displays inform the driver of
the position and distance to the obstacle.
■Multi-information display
Front corner sensor operation
Front center sensor operation
Rear corner sensor operation
Rear center sensor operation
■Lexus Display Audio screen
Lexus parking assist-sensor dis-
play
When the vehicle is moving forward.
A graphic is automatically displayed
when an obstacle is detected. The screen can be set so that the graphicis not displayed. ( P. 376)
: Select to mute the buzzer
sounds.
Insert display
When the vehicle is moving back-
ward.
A simplified image is displayed on
the upper part of the screen when an obstacle is detected.
Display
1
2
3
4
1
2

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■Distance display
Sensors that detect an obstacle will illuminate continuously or blink.
Sensor detection display, obstacle distance
Display*1Insert displayApproximate distance to obstacle
Lexus parking assist monitorPanoramic
view monitorFront and rear center sensorFront and rear corner sensor
(continuous)(blinking slowly)(blinking slowly) Front center sen-
sor:
100 cm (3.3 ft.)
to
60 cm (2.0 ft.)
Rear center sen-
sor:
150 cm (4.9 ft.)
to
60 cm (2.0 ft.)

(continuous)(blinking)(blinking) 60 cm (2.0 ft.) to
45 cm (1.5 ft.)
60 cm (2.0 ft.) to
45 cm (1.5 ft.)
(continuous)(blinking
rapidly)(blinking rapidly) 45 cm (1.5 ft.) to
35 cm (1.2 ft.)
45 cm (1.5 ft.) to
35 cm (1.2 ft.)
(blinking*2 or
continuous
*3)
(continuous)(continuous) Less than
35 cm (1.2 ft.)
Less than
35 cm (1.2 ft.)

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You can change the buzzer sounds volume and the screen operating conditions
when the engine switch is in IGNITION ON mode.
Press the “MENU” button on the Le xus Display Audio controller/Remote
Touch, and then select on the screen.
Select “Vehicle”, and then select “LEXUS park assist” on the screen.
Select the desired item.
The buzzer sounds volume can be adjusted.
On or off can be selected for Le xus parking assist-sensor display.
Both the front or rear ce nter sensors display and tone indication can be set.
Setting up Lexus parking assist-sensor
1
2
3
Lexus Display Audio screenNavigation system screen
1
2
3

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■The Lexus parking assist-sensor 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 10 km/h (6 mph). (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 10 km/h (6 mph).
●Rear corner and rear center sensors:
• The engine switch is in IGNITION ON mode. • The shift lever is in R.
■Lexus parking assist-sensor display
●Vehicles with a Lexus Display Audio system : When an obstacle is detected while the Lexus parking assist monitor is in use, the warning indicator will appear in the upperpart of the screen even if the display setting has been set to off.
●Vehicles with a navigation system: If the Lexu s parking assist-sensor display 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 obstacle. 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.
• 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, airbrakes 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 (low ered 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 a sensor to be closer than they are.

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●The shape of the obstacle may prevent a sensor from detecting it. Pay particular atten- tion 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 vehi- cle
●The following situations may occur during use.
• Depending on the shape of the obstacle and other factors, the detection distance 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 obst acle detection and display. Even at slow speeds, there is a possibility that the obstacl e will come within the sensor’s detection
areas before the display is shown and the buzzer sounds. • Thin posts or objects lower than the sens or 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 di splayed 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 obstacle may not be detected. If the sensor thaws out, the system should return to normal.
■If “Parking Assist Malfun ction” 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 any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional.
■Customization
Some functions can be customized. ( P. 376,740)
WARNING
■When using the Lexus parking assist-sensor
Observe the following precautions.
Failing to do so may result in the vehicle be ing 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 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.

3804-5. Using the driving support systems
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The system will operate in situations such as the following if an 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 an object may occur due to the vehicle suddenly moving for-
ward due to an accidental accelerato r 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 objects, such a
wall, in the traveling direction of the ve hicle, and the system operates to lessen
an impact with an object and reduce the resulting damage.
Examples of system operation

3884-5. Using the driving support systems
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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. 383),
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 chan ges (such as changing from moving forward to
backing up, or from backing up to moving fo rward), 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 traveling 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
■Lexus parking assist-sensor buzzer
Regardless of whether the Lexus parking as sist-sensor system is enabled or not (P. 375), if the Intelligent Clearance Sonar system is enabled ( P. 383), the front or rear sensors detect an object and brake control is performed, the Lexus parking assist-sensor
buzzer will sound to notify the driver of the approximate distance to the object.