2017 LEXUS RX200T brake

3874-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
■The Intelligent Clearance Sonar function will operate when
The function will operate when the ICS OFF indicator is not illuminated or flashing ( P. 383, 391) and all of the following conditions are met:
●Engine output restriction control
• The Intelligent Clearance Sonar system is enabled. • The vehicle speed is 15 km/h (10 mph) or less.• There is an object in the traveling directio n of the vehicle and 2 to 4 m (6 to 13 ft.)
away. • The system determines that a stronger-than-normal brake operation is necessary toavoid 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 an y 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 object is no longer 2 to 4 m (6 to 13 ft.) away in the traveling direction of thevehicle.
●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 object is no longer 2 to 4 m (6 to 13 ft.) 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 Lexus parking assist-sensor ( P. 375).
Therefore, even if the Lexus parking assist-s ensor detects an object and provides a warn- ing, 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 disa bled and the ICS OFF indicator will illumi-
nate.

3884-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
■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.

3894-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
■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

3904-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
■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

3924-5. Using the driving support systems
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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.

3944-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
If the Rear Crossing Traffic Auto Brake function detects that a collision with an
approaching vehicle is possible, the engine output will be restricted to restrain
any increase in vehicle speed. (Engine output restriction control: See A below.)
Additionally, if the accelerator pedal cont inues to be depressed, the brakes will
be applied automatically to reduce the vehicle speed. (Brake control: See B
below.)
Rear Crossing Traffic Auto Brake function (if equipped)

3954-5. Using the driving support systems
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Driving
RX350/RX200t_EE_OM48F32E
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

3964-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
■The Rear Crossing Traffic Auto Brake function will operate when
The function will operate when the ICS OFF indicator is not illuminated or flashing ( P. 383, 391) and all of the following conditions are met:
●Engine output restriction control
• The Intelligent Clearance Sonar with Rear Crossing Traffic Auto Brake is enabled. • The vehicle speed is 15 km/h (10 mph) or less.• The shift lever is in R.
• The system determines that a stronger than normal brake operation is necessary to avoid a collision with an approaching vehicle.
●Brake control
• Engine output restriction control is operating. • The system determines that an emergency brake operation is necessary to avoid a
collision with an approaching vehicle.
■The Rear Crossing Traffic Auto Brake function will stop operating when
The function will stop operating if an y of the following conditions are met:
●Engine output restriction control
• The Intelligent Clearance Sonar with Rear Crossing Traffic Auto Brake is disabled. • The collision becomes avoidable with normal brake operation.
• A vehicle is no longer approaching from the right or left at the rear of the vehicle.
●Brake control
• The Intelligent Clearance Sonar with Rear Crossing Traffic Auto Brake 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.
• A vehicle is no longer approaching from the right or left at the rear of the vehicle.
■Detection area of the Rear Cro ssing Traffic Auto Brake function
The detection area of the Rear Crossing Tr affic Auto Brake function differs from the
detection area of the RCTA function ( P. 367).
Therefore, even if the RCTA function detects a vehicle and provides an alert, the Rear Crossing Traffic Auto Brake function may not start operating.
■If the Rear Crossing Traffic Auto Brake function has operated
If the vehicle is stopped due to operation of the Rear Crossing Traffic Auto Brake func- tion, the Rear Crossing Traffic Auto Brake fu nction will be disabled and the ICS OFF indi-
cator will illuminate.