2017 LEXUS RX200T Owners Manual

3934-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
NOTICE
■To prevent the system from malfunctioning
●If the area around a sensor is subjected to an impact, the system may not operate properly due to the sensor being misali gned. Have the vehicle inspected by any
authorized Lexus dealer or repairer, or an other duly qualified and equipped profes- sional.
●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.
■To prevent a radar sensor from malfunctioning
●If the area around a radar sensor is subjec ted to an impact, the system may not oper- ate properly due to a sensor malfunction. Have the vehicle inspected by any autho-
rized Lexus dealer or repairer, or anothe r duly qualified and equipped professional.
●Observe the radar sensor handling precautions. (P. 360)
■To prevent unnecessary operation of the Intelligent Clearance Sonar system
In the following situations, disable the Inte lligent Clearance Sonar system as the system may operate even though there is no possibility of a collision.
●When inspecting the vehicle using a chassis roller, chassis dynamo or free roller
●When loading the vehicle onto a boat, truck or other transport vessel
●If the suspension has been modified or tires of a size other than specified are installed
●If the front of the vehicle is raised or lowered due to the carried load
●If towing eyelets are installed

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
4
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.

3974-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
■Re-enabling the Rear Crossing Traffic Auto Brake function
To re-enable the Rear Crossing Traffic Auto Brake function when it is disabled during
operation of the Rear Crossing Traffic Auto Brake function, either enable the system
again ( P. 383), or turn the engine switch o ff and then back to IGNITION ON mode.
Additionally, if there is no longer a vehicle ap proaching from the right or left at the rear 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 automatically.
■Conditions under which the Rear Crossing Traffic Auto Brake function will not detect a
vehicle
The Rear Crossing Traffic Auto Brake function is not designed to detect 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.
■RCTA function buzzer
Regardless of whether the RCTA function is enabled or not ( P. 357), if the Rear Cross-
ing Traffic Auto Brake function is enabled an d brake control is performed, a buzzer will
sound to notify the driver.
●Vehicles that the sensors cannot detect due to
obstructions
●Vehicles which suddenly accelerate or
decelerate near your vehicle

3984-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
■Situations in which the system may operate even though there is no possibility of a colli-
sion
In some situations such as the following, th e Rear Crossing Traffic Auto Brake function
may operate even though there is no possibility of a collision.
• When the parking space faces a street and vehicles are being driven on the street
• When a detected vehicle turns while approaching the vehicle
• 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 of the vehi-
cle, is short

3994-5. Using the driving support systems
4
Driving
RX350/RX200t_EE_OM48F32E
■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

4004-5. Using the driving support systems
RX350/RX200t_EE_OM48F32E
■Handling the radar sensors
 P. 360
• Vehicles that the sensors cannot detect due
to obstructions
• When backing up on a slope with a sharp change in grade
• When a vehicle turns into the detection area