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The areas that vehicles can be detected in are outlined below.
The buzzer can alert the driver of faster vehicles approaching from farther away.
Example:
■The RCTA function is operational when
The RCTA function operates when all of the following conditions are met:
●The RCTA function is on.
●The shift lever is in R.
●The vehicle speed is less than approximately 8 km/h (5 mph).
●The approaching vehicle speed is between approximately 8 km/h (5 mph) and 28 km/h (18 mph).
RCTA function detection areas
Approaching vehicleSpeedApproximate
alert distance
Fast28 km/h (18 mph)20 m (65 ft.)
Slow8 km/h (5 mph)5.5 m (18 ft.)
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*1: The images may differ from that shown in the illustrations. (P. 372)
*2: Multi-information display
*3: Audio system screen
■Buzzer operation and distance to an obstacle
A buzzer sounds when the sensors are operating.
●The buzzer sounds faster as the vehicle approaches an obstacle.
When the vehicle comes within the following distance of the obstacle, the
buzzer sounds continuously: Appr oximately 35 cm (1.2 ft.).
●When 2 or more obstacles are detected simultaneously, the buzzer system
responds to the nearest obstacle. If on e or both come within the above dis-
tances, the beep will repeat a long tone, followed by fast beeps.
Approximately 100 cm (3.3 ft.)
Approximately 150 cm (4.9 ft.)
Approximately 60 cm (2.0 ft.)
The diagram shows the detection range
of the sensors. Note that the sensors cannot detect obstacles that areextremely close to the vehicle.
The range of the sensors may change depending on the shape of the objectetc.
Detection range of the sensors
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2
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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.
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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 wa ter, 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 su ch 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 Cleara nce Sonar function operates unnecessarily,
such as at a railroad crossing, brake contro l 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 Cleara nce 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 su ch 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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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 dr iving. 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 todepress the brake pedal immediately as brak e 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. 383). 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. 360). 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 alwa ys 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.
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■Situations in which the Rear Crossing Traffic Auto Brake function may not operate properly
In some situations such as the following , this function may not operate properly.
●Objects and vehicles which the radar sensors are not designed to detect
• Stationary objects • Vehicles which are moving away from your vehicle
• Pedestrians, motorcycles, bicycles, etc.*• Objects which are extremely close to a radar sensor • Vehicles which are approaching from the right or left at the rear of the vehicle at a
traveling speed of less than approximately 8 km/h (5 mph) • Vehicles which are approaching from the right or left at the rear of the vehicle at a traveling speed of more than a pproximately 24 km/h (15 mph)
*: Depending on conditions, detection of a vehicle and/or object may occur.
●Situations in which the radar sensors may not be able to detect an object
• When a sensor or the area around a sensor is extremely hot or cold • If the rear bumper is covered with ice, snow, dirt, etc.
• If heavy rain or water strikes the vehicle • When the detection area of a radar sensor is obstructed by an adjacent vehicle• If the vehicle is significantly tilted
• If towing eyelets are installed • If the suspension has been modified or ti res of a size other than specified are installed
• If the front of the vehicle is raised or lowered due to the carried load • 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 radar
sensor • If the orientation of a radar sensor has been changed due to a collision or other
impact or removal and installation • When multiple vehicles are approaching wi th only a small gap between each vehicle • When a vehicle is approaching at high speed
●Situations in which the radar sensor may not detect a vehicle
• When a vehicle approaches from the right or left at the rear of the vehicle while youare turning while backing up
• When turning while backing up
• When backing out of a shallow angle park-
ing spot