Lexus NX (2023 year). Manual in english - page 12

 

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Lexus NX (2023 year). Manual in english - page 12

 

 

Buzzer

If the volume setting of the audio system is high or the surrounding area is loud, it may be
difficult to hear the buzzer.

Voice notifications

In the following situations, voice notifications will not be output:

After opening a door and entering the vehicle, until the engine is started

When 3 minutes or more have elapsed since the engine was stopped

When the language setting of the center display has been set to a language that does
not support voice notifications

When all of the doors have been locked from outside the vehicle

When a door remains open for 1 minute or more after the engine is stopped

When ACC mode has been enabled through a customize setting on the center
display and the engine has been stopped

When the parking assist volume setting on the center display has been set to off

WARNING

To ensure the system can operate properly

Safe exit assist sensors are installed behind the left and right sides of the rear bumper
respectively. Observe the following to ensure the safe exit assist can operate correctly.

Keep the sensors and the surrounding areas on the rear bumper clean at all times.
If a sensor or its surrounding area on the rear bumper is dirty or covered with snow,
the Safe Exit Assist may not operate and a warning message will be displayed. In this
situation, clear off the dirt or snow and drive the vehicle with the operation conditions
of the SEA function satisfied for approximately 10 minutes. If the warning message
does not disappear, have the vehicle inspected by any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer.

Do not attach accessories, stickers (including transparent stickers), aluminum tape,
etc., to a sensor or its surrounding area on the rear bumper.

Do not subject a sensor or its surrounding area on the rear bumper to a strong impact.

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WARNING

If a sensor is moved even slightly off position, the system may malfunction and vehicles
may not be detected correctly. In the following situations, have your vehicle inspected
by any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.

A sensor or its surrounding area is subject to a strong impact.

If the surrounding area of a sensor is scratched or dented, or part of them has
become disconnected.

Do not disassemble the sensor.

Do not modify the sensor or surrounding area on the rear bumper.

If a sensor or the rear bumper needs to be removed/installed or replaced, contact any
authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer.

Do not paint the rear bumper any color other than an official Lexus color.

Vehicles that can be detected by the Safe exit assist

When the safe exit assist detects the following vehicles or bicycles using a rear side
radar sensor, the occupants of the vehicle are informed through an outside rear
view mirror indicator, buzzer, display on the meter, display on the head up display,
and voice notification.

A

A Vehicle or bicycle which has a high possibility of colliding with a door (other
than the back door) when opened

The Safe exit assist detection areas

The areas that vehicles can be detected in are outlined below.

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A

Approximately 45 m rearward from the front door 

*1

Turning the Safe exit assist system ON/OFF

The Safe exit assist system can be changed between ON and OFF on the center
display

1

Select 

 .

2

Select [Driving assist] .

3

Select [Safe exit assist] .

When the Safe exit assist function is disabled, the driving assist infomation indicator
illuminates.
Each time the engine switch is turned off then changed to ON, the Safe exit assist
will be enabled automatically.

INFORMATION

The Safe exit assist is operational when

The Safe exit assist is operational when all of the following conditions are met:

When the engine switch is ON, less than 3 minutes have elapsed since the engine was
off, or less than 3 minutes have elapsed since a door was opened and someone has
entered the vehicle (the time which operation is possible may be extended if a door is
opened and closed)

Safe exit assist is on

The vehicle is stopped.

The shift position is in a position other than R.

*1 : 

The faster a vehicle or bicycle is approaching, the distance at which an outside rear

view mirror indicator will illuminate or blink will become further.

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The Safe exit assist will detect a vehicle when

The Safe exit assist will detect a vehicle present in the detection area in the following
situations:
When the vehicle is stopped and a vehicle or bicycle, which is traveling parallel to the
vehicle, is approaching within the area that a door opens (other than the back door)

Opening the doors when opening is canceled by the system

Perform the following operation to open a door.
After the approaching vehicle or bicycle passes or changes direction, check the sur-
rounding area and press the door opener switch again.

Press and hold an inside door opener switch for approximately 3 seconds or more

 P.372

Press an inside door opener switch quickly 3 times or more

Pull a manual release handle

Conditions under which the system may not function correctly

The Safe exit assist 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 on
the 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 a vehicle or bicycle approaches from behind a nearby parked vehicle

When an approaching vehicle or bicycle suddenly changes direction

Immediately after a vehicle or bicycle starts moving

When the back door is open

When a bicycle carrier, ramp, or other accessory is installed to the back of the
vehicle

When a parked vehicle, wall, sign, person or other stationary object is behind the
vehicle

When the vehicle is stopped at an angle to the road

When a vehicle is traveling near an approaching vehicle or bicycle

When an approaching vehicle or bicycle is traveling along a stationary object, such
a wall or sign

When a vehicle or bicycle is approaching at high speed

When towing with the vehicle

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When stopped on a steep slope

When stopped on a curve or at the exit of a curve

Instances of the Safe exit assist unnecessarily detecting a vehicle and/or object may
increase in the following situations:

When the sensor is misaligned due to a strong impact to the sensor or its surround-
ing area

When a vehicle or bicycle approaches from behind your vehicle at an angle

When the vehicle is stopped at an angle to the road

When a vehicle or bicycle approaches from behind a parked vehicle at an angle

When a parked vehicle, wall, sign, person or other stationary object is behind the
vehicle

When an approaching vehicle or bicycle suddenly changes direction

When an approaching vehicle or bicycle is traveling along a stationary object, such
a wall or sign

When the back door is open

When a bicycle carrier, ramp, or other accessory is installed to the back of the
vehicle

When a vehicle or bicycle is approaching at high speed

When towing with the vehicle

When stopped on a steep slope

When stopped on a curve or at the exit of a curve

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Buzzer and screen notifications when approaching an object at low
speed

*

Purpose of the Lexus parking assist-sensor

The distance from your vehicle to nearby obstacles when parallel parking or
maneuvering into a garage is measured by the sensors and communicated via the
displays and a buzzer. Always check the surrounding area when using this system.

WARNING

Cautions regarding the use of the system

There is a limit to the degree of recognition accuracy and control performance that this
system can provide, do not overly rely on this system. The driver is always responsible for
paying attention to the vehicle’ surroundings and driving safely.

To ensure the system can operate properly

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 damage the sensors, and always keep them clean.

Do not attach a sticker or install an electronic component, such as a backlit license
plate (especially fluorescent type), fog lights, fender pole or wireless antenna near a
radar sensor.

Do not subject the surrounding area of the sensor to a strong impact. If subjected
to an impact, have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer. If the front or rear bumper needs to
be emoved/installed or replaced, contact any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.

Do not modify, disassemble or paint the sensors.

Do not attach a license plate cover.

Keep your tires properly inflated.

When to disable the function

In the following situations, disable the function as it may operate even though there is no
possibility of a collision.

Failing to observe the warnings above.

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

* : 

If equipped

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INFORMATION

The Lexus parking assist-sensor can be operated when

The engine switch is in ON.

The Lexus parking assist-sensor is on.  

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

A shift position other than P is selected.

Objects which the system may not be properly detected

The shape of the object may prevent the 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 objects

Tall objects with upper sections projecting outwards in the direction of your vehicle
People may not be detected if they are wearing certain types of clothing.

Situations in which the system may not operate properly

Certain vehicle conditions and the surrounding environment may affect the ability of a
sensor to correctly detect objects. Particular instances where this may occur are listed
below.

There is dirt, snow, water drops or ice on a sensor. (Cleaning the sensors will resolve
this problem.)

A sensor is frozen. (Thawing the area will resolve this problem.)
In especially cold weather, if a sensor is frozen the sensor display may be displayed
abnormally, or objects, such as a wall, may not be detected.

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.

When vehicle horns, vehicle detectors, motorcycle engines, air brakes of large vehi-
cles, the clearance sonar of other vehicles or other devices which produce ultrasonic
waves are near the vehicle

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A sensor is coated with a sheet of spray or heavy rain

If objects draw too close to the sensor.

When a pedestrian is wearing clothing that does not reflect ultrasonic waves (ex. skirts
with gathers or frills).

When objects that are not perpendicular to the ground, not perpendicular to the
vehicle traveling direction, uneven, or waving are in the detection range.

When strong winds are blowing

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

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

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

When equipment that may obstruct a sensor is installed, such as a towing eyelet,
bumper protector (an additional trim strip, etc.), bicycle carrier, or snow plow

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

If the vehicle cannot be driven in a stable manner, such as when the vehicle has been in
an accident or is malfunctioning

When a tire chains, compact spare tire or an emergency tire puncture repair kit is
used

Situations in which the system may operate even if there is no possibility of a
collision

In some situations, such as the following, the system may operate even though there is no
possibility of a collision.

When driving on a narrow road

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 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 up or down a steep slope

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

There is dirt, snow, water drops or ice on a sensor. (Cleaning the sensors will resolve
this problem.)

A sensor is coated with a sheet of spray or heavy rain

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

When strong winds are blowing

When vehicle horns, vehicle detectors, motorcycle engines, air brakes of large vehi-
cles, the clearance sonar of other vehicles or other devices which produce ultrasonic
waves are near the vehicle

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

The vehicle is approaching a tall or curved curb

Driving close to columns (H-shaped steel beams, etc.) in multi-story parking garages,
construction sites, etc.

If the vehicle cannot be driven in a stable manner, such as when the vehicle has been in
an accident or is malfunctioning

On an extremely bumpy road, on an incline, on gravel, or on grass

When a tire chains, compact spare tire or an emergency tire puncture repair kit is
used

Lexus parking assist-sensor display

When an object is detected by a sensor, the following displays inform the driver of
the position and distance to the obstacle.

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▶ 

Lexus parking assist monitor 

*

▶ 

Panoramic view monitor 

*

Position of the sensors of the Lexus parking assist-sensor

 

A

Front corner sensors

B

Front center sensors

C

Rear corner sensors

D

Rear center sensors

WARNING

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.

* : 

If equipped

6-2. Using the safe driving support functions

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Turning the Lexus parking assist-sensor function ON/OFF

The Lexus parking assist-sensor can be enabled/disabled on the center display as
follows:

1

Select 

 .

2

Select [Driving assist].

3

Select [Parking assist-sensor] to change ON (enable)/OFF (disabled).

When ON (enable) is selected, the Lexus parking assist-sensor indicator comes on.
When turned OFF (disabled), the Lexus parking assist-sensor will be disabled and will
not be enabled until the setting is changed to ON again in center display.
(The system will not be reenabled by operating the engine switch.)

Detection range of the Lexus parking assist-sensor

Detection range of the sensors  

 

A

Approximately 100 cm (3.3 ft.) 

B

Approximately 150 cm (4.9 ft.) 

C

Approximately 60 cm ( 2.0 ft.)

The diagram shows the detection range of the sensors.
Note that the sensors cannot detect objects that are extremely close to the vehicle.
The range of the sensors may change depending on the shape of the object, etc.  

INFORMATION

Sensor detection information  

The detection range of the sensors is limited to the areas around the vehicle’s bump-
ers.  

Certain vehicle conditions and the surrounding environment may affect the ability of a
sensor to correctly detect an object.

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

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There is a short delay between when an object is detected and when the display and
buzzer operate. Even at slow speeds, there is a possibility that an object will come
within the detection range before the display is shown and the buzzer sounds.

It might be difficult to hear the buzzer due to the volume of the audio system or air flow
noise of the air conditioning system.

It may be difficult to hear the sound of this system due to the buzzers of other systems.

The distance and buzzer

Approximate distance to obstacle

Buzzer

Rear center sensor: Approximately 150 cm
(4.9 ft.) to 60 cm (2.0 ft.) 

(1)

Front center sensor: Approximately 100
cm (3.3 ft.) to 60 cm (2.0 ft.) 

(1)

Slow

Approximately 60 cm (2.0 ft.) to 45 cm
(1.5 ft.) 

(1)

Medium

Approximately 45 cm (1.5 ft.) to 30 cm (1.0
ft.) 

(1)

Fast

Less than approximately 30 cm (1.0 ft.),
Less than approximately 15 cm (0.5 ft.) 

(1)

Continuous

(1)

Automatic buzzer mute function is enabled.

 

Lexus parking assist-sensor buzzer operation and range

A buzzer sounds when objects are detected.

A buzzer sounds when the sensors are operating.

The buzzer beeps faster as thevehicle approaches an object. When the vehicle
comes within the approximately 30 cm (1.0 ft.) of the object, the buzzer will
sound continuously. 

When 2 or more sensors simultaneously detect a static object, the buzzer
sounds for the nearest object.

Even when the sensors are operating, the buzzer will be muted in some situa-
tions. (automatic buzzer mute function)

Changing the Lexus parking assist-sensor buzzer volume

The buzzer volume can be adjusted on the center display.

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1

Select 

.

2

Select [Driving assist].

3

Select [Collision mitigation].

4

Select [Parking assist volume].

Temporarily muting the Lexus parking assist-sensor buzzer

A mute button will be displayed on the center display when an object is detected.
To mute the buzzer, select 

.

To mute the buzzer, select 

. The buzzers for the Lexus parking assist-sensor,

RCTA and RCD function will be muted simultaneously.
Mute will be canceled automatically in the following situations:

When the shift position is changed.

When the vehicle speed exceeds a certain speed.

When there is a malfunction in a sensor or the system is temporarily unavailable.

When the operating function is disabled manually.

When the engine switch is turned off.

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Buzzer and screen notifications when traveling at a low speed and an
approaching vehicle is detected at the rear

*

Purpose of the RCTA (Rear crossing traffic alert) function

The RCTA function uses the BSM rear side radar sensors installed behind the rear
bumper. This function is intended to assist the driver in checking areas that are not
easily visible when backing up.

WARNING

Cautions regarding the use of the system

There is a limit to the degree of recognition accuracy and control performance that this
system can provide, do not overly rely on this system. The driver is always responsible for
paying attention to the vehicle’s surroundings and driving safely.

INFORMATION

The RCTA function is operational when

The RCTA function operates when all of the following conditions are met:

The engine switch is in ON.

The shift position is in R.

The vehicle speed is approximately 15 km/h (9 mph) or less.

The approaching vehicle speed is between approximately 8 km/h (5 mph) and 56
km/h (35 mph).

Conditions under which the system will not detect a vehicle

The RCTA 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

Vehicles that the sensors cannot detect due to
obstructions

* : 

If equipped

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Guardrails, walls, signs, parked vehicles and similar stationary objects

*1

Small motorcycles, bicycles, pedestrians, etc.

*1

Vehicles moving away from your vehicle

Vehicles approaching from the parking spaces next to your vehicle

*1

The distance between the sensor and approaching vehicle gets too close

Situations in which the system may not operate properly

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 surrounding
area

When mud, snow, ice, a sticker, etc.,is covering the sensor or surrounding area on the
position above the 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 with only a small gap between each vehicle

When a vehicle is approaching at high speed

When equipment that may obstruct a sensor is installed, such as a towing eyelet,
bumper protector (an additional trim strip, etc.), bicycle carrier, or snow plow

When backing up on a slope with a sharp change
in grade

*1 : 

Depending on the conditions, detection of a vehicle and/or object may occur.

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When backing out of a sharp angle parking spot

When towing a trailer

When there is a significant difference in height between your vehicle and the vehicle
that enters the detection area

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

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

When turning while backing up

When a vehicle turns into the detection area

Situations in which the system may operate even if there is no possibility of a
collision

Instances of the RCTA function unnecessary detecting a vehicle and/or object may
increase in the following situations:

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When the parking space faces a street and vehi-
cles are being driven on the street

When the distance between your vehicle and met-
al objects, such as a guardrail, wall, sigh, or parked
vehicle, which may reflect electrical waves toward
the rear of the vehicle, is short

When equipment that may obstruct a sensor is installed, such as a towing eyelet,
bumper protector (an additional trim strip, etc.), bicycle carrier, or snow plow

When a vehicle passes by the side of your vehicle

When a detected vehicle turns while approaching
the vehicle

When there are spinning objects near your vehicle such as the fan of an air condition-
ing unit

When water is splashed or sprayed toward the rear bumper, such as from a sprinkler

Moving objects (flags, exhaust fumes, large rain droplets or snowflakes, rain water on
the road surface, etc.)

When the distance between your vehicle and a guardrail, wall, etc., that enters the
detection area is short

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Gratings and gutters

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

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

System components

 

A

Meter
If a vehicle approaching from the right or
left at the rear of the vehicle is detected, a
buzzer will sound.

B

Outside rear view mirror indicators
When a vehicle approaching from the right
or left at the rear of the vehicle is detected,
both outside rear view mirror indicators will
flash.

C

Center display
If a vehicle approaching from the right or
left at the rear of the vehicle is detected,
the RCTA icon for the detected side will be
displayed on the center display. Turning the
RCTA function on/off on the center display.

This illustration shows an example of a vehicle
approaching from both sides of the vehicle.

INFORMATION

Outside rear view mirror indicator visibility

In strong sunlight, the outside rear view mirror indicator may be difficult to see.

Hearing the RCTA buzzer

The RCTA buzzer may be difficult to hear over loud noises, such as if the audio system
volume is high.

Rear side radar sensors

 P.366

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RCTA function

The RCTA function is operational when

The RCTA function uses rear side radar sensors to detect vehicles approaching
from the right or left at the rear of the vehicle and alerts the driver of the presence
of such vehicles by flashing the outside rear view mirror indicators and sounding a
buzzer.

 

A

Approaching vehicles

B

Detection areas of approaching vehicles

RCTA icon display

When a vehicle approaching from the right or left at the rear of the vehicle is
detected, the following will be displayed on the center display.
Example: Vehicles are approaching from both
sides of the vehicle (Example: Vehicles with a
Lexus parking assist monitor)

RCTA function detection areas

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:

Approaching vehicle speed: 56 km/h (35 mph) (fast)

 Approximate alert distance: 25 m (82 ft.)

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Approaching vehicle speed: 8 km/h (5 mph) (slow)

 Approximate alert distance: 5.5 m (18 ft.)

Changing the RCTA settings

Turning the RCTA function ON/OFF

The RCTA function can be enabled/disabled on the center display as follows:

1

Select 

 .

2

Select [Driving assist].

3

Select [Rear crossing traffic alert].

When the RCTA function is disabled, the driving assist infomation indicator illumi-
nates on the multi-information display.
(Each time the engine switch is turned off then changed to ON, the RCTA function
will be enabled automatically.)

Changing the RCTA buzzer volume

The buzzer volume can be adjusted on the center display.

1

Select 

.

2

Select [Driving assist].

3

Select [Collision mitigation].

4

Select [Parking assist volume].

Temporarily muting the RCTA buzzer

A mute button will be displayed on the center display when an object is detected.
To mute the buzzer, select

.To mute the buzzer, select 

. The buzzers for the

Lexus parking assist-sensor, RCTA and RCD function will be muted simultaneously.

INFORMATION

Mute will be canceled automatically in the following situations:

When the shift position is changed.

When the vehicle speed exceeds a certain speed.

When there is a malfunction in a sensor or the system is temporarily unavailable.

When the operating function is disabled manually.

When the engine switch is turned off.

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Buzzer and screen notifications when traveling at a low speed and a
pedestrian is detected at the rear

*

Purpose of the RCD (Rear Camera Detection)

When the vehicle is backing up, the rear camera detection function can detect
pedestrians in the detection area behind the vehicle. If a pedestrian is detected, a
buzzer will sound and an icon will be displayed on the center display to inform the
driver of the pedestrian.

WARNING

Cautions regarding the use of the system

The recognition and control capabilities for this system are limited.
The driver should always drive safely by always being responsible without over relying on
the system and have a understanding of the surrounding situations.

To ensure the system can operate properly

Observe the following, otherwise there is the danger that could lead to an accident.

Always clean the camera with damaging it.

Do not install market electronic parts (such as Illuminated license plate, fog lamps,
etc.) in the camera vicinity.

Do not subject the camera vicinity to strong impacts. If the vicinity is subjected to a
strong impact, have the vehicle inspected at any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.

Do not disassemble, remodel or paint the camera.

Do not attach accessories or stickers to the camera.

Do not install market protection parts (bumper trim, etc.) to the rear bumper.

Maintain suitable tire air pressure.

Make sure the back door is completely closed.

RCD function is turned off

In the following situations the system turns off. The RCD function may not operate
properly and thus there is the danger that an accident may occur.

The contents mentioned above are not observed.

Suspensions other than Lexus genuine parts are installed.

* : 

If equipped

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INFORMATION

The rear camera detection function is operational when

The engine switch is in ON.

RCD function is on.

The shift position is in R.

Situations in which the system may not operate properly

Some pedestrians, such as the following, may not be detected by the rear camera
detection function, preventing the function from operating properly:

Pedestrians who are bending forward or squatting

Pedestrians who are lying down

Pedestrians who are running

Pedestrians who suddenly enter the detection area

People riding a bicycle, skateboard, or other light vehicle

Pedestrians wearing oversized clothing such as a rain coat, long skirt, etc., making
their silhouette obscure

Pedestrians whose body is partially hidden by an object, such as a cart or umbrella

Pedestrians which are obscured by darkness, such as at night

In some situations, such as the following, pedestrians may not be detected by the rear
camera detection function, preventing the function from operating properly:

When backing up in inclement weather (rain, snow, fog, etc.)

When the rear camera is obscured (dirt, snow, ice, etc. are attached) or scratched

When a very bright light, such as the sun, or the headlights of another vehicle,
shines directly into the rear camera

When backing up in a place where the surrounding brightness changes suddenly,
such as at the entrance or exit of a garage or underground parking lot

When backing up in a dim environment such as during dusk or in an underground
parking lot

When the camera position and direction are deviated

When a towing hook is attached

When water droplets are flowing on the camera lens

When the rear washer is operating

When the vehicle height is extremely changed (nose up, nose down)

When tire chains or an emergency tire puncture repair kit is used

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If the suspension has been modified or tires of a size other than specified are
installed

When install market electronic parts (such as Illuminated license plate, fog lamps,
etc.) in the camera vicinity

When install market protection parts (bumper trim, etc.) to the rear bumper

Situations in which the system may operate unexpectedly

Even though there are no pedestrians in the detection area, some objects, such as the
following, may be detected, possibly causing the rear camera detection function to
operate.

Three dimensional objects, such as a pole, traffic cone, fence, or parked vehicle

Moving objects, such as a car or motorcycle

Objects moving toward your vehicle when backing up, such as flags or puddles (or
airborne matter, such as smoke, steam, rain, or snow)

Cobblestone or gravel roads, tram rails, road repairs, white lines, pedestrian cross-
ings or fallen leaves on the road

Metal covers (gratings), such as those used for drainage ditches

Objects reflected in a puddle or on a wet road surface

Shadows on the road

In some situations, such as the following, the rear camera detection function may
operate even though there are no pedestrians in the detection area.

When backing up toward the roadside or a bump on the road

When backing up toward an incline/decline

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

If a bumper protector, such as an additional trim strip, is installed to the rear bumper

If the orientation of the rear camera has been changed

If a towing eyelet is installed to the rear of the vehicle

When water is flowing over the rear camera lens

When the rear camera is obscured (dirt, snow, ice, etc., are attached) or scratched

If there is a flashing light in the detection area, such as the emergency flashers of
another vehicle

When a tire chains or an emergency tire puncture repair kit is used

Situations in which the rear camera detection function may be difficult to notice

The buzzer may be difficult to hear if the surrounding area is noisy, the volume of
the audio system volume is high, the air conditioning system is being used, etc.

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If the temperature in the cabin is extremely high or low, the audio system screen
may not operate correctly.

RCD function

Center Display

 

A

Pedestrian detection icon
Displayed automatically when a pedestrian
is detected.
(Each time the engine switch is turned off
then changed to ON, the RCD function will
be enabled automatically.)

When a pedestrian is detected

If the rear camera detection function detects a pedestrian in the detection area, the
buzzer and pedestrian detection will operate as follows:

 

A

If a pedestrian is detected in area 
Buzzer: Sounds repeatedly
Pedestrian detection icon: Blinks

B

If a pedestrian is detected in area 
Buzzer (When the vehicle is stationary):
Sounds 3 times
Buzzer (When the vehicle is backing up,
when a pedestrian approaches the rear of
the vehicle): Sounds repeatedly
Pedestrian detection icon: Blinks

C

If the system determines that your vehicle
may collide with a pedestrian in area 
Buzzer: Sounds repeatedly
Pedestrian detection icon: Blinks

Changing the RCD settings

A

B

C

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Turning the RCD function ON/OFF

The RCD function can be enabled/disabled on the center display as follows:

1

Select 

 .

2

Select [Driving assist].

3

Select [Rear camera detection].

When the RCD function is disabled, the driving assist infomation indicator illumi-
nates on the multi-information display.

Changing the RCD buzzer volume

The buzzer volume can be adjusted on the center display.

1

Select 

.

2

Select [Driving assist].

3

Select [Collision mitigation].

4

Select [Parking assist volume].

Temporarily muting the RCD buzzer

A mute button will be displayed on the center display when an object is detected.
To mute the buzzer, select 

.To mute the buzzer, select 

. The buzzers for the

Lexus parking assist-sensor, RCTA and RCD function will be muted simultaneously.

INFORMATION

Mute will be canceled automatically in the following situations:

When the shift position is changed.

When the vehicle speed exceeds a certain speed.

When there is a malfunction in a sensor or the system is temporarily unavailable.

When the operating function is disabled manually.

When the engine switch is turned off.

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Brake operation when an object is detected while approaching at low
speed 

*

Purpose of the PKSB (Parking Support Brake) system

*

The PKSB (Parking Support Brake) system consists of the following functions that
operate when driving at a low speed or backing up, such as when parking. When
the system determines that the probability of a collision with a detected object is
high, a warning operates to urge the driver to take evasive action.

Parking assist function

The system can detect the following as detectable objects. (Detectable objects
differ depending on the function.)

Static Objects Front and Rear of the vehicle

Moving Vehicles Rear of the Vehicle

Pedestrians Rear of the Vehicle

PKSB (Parking Support Brake) system

WARNING

Cautions regarding the use of the system

Do not overly rely on the system, as doing so may lead to an accident. Always drive while
checking the safety of the surroundings of the vehicle.
Depending on the vehicle and road conditions, weather, etc., the system may not operate.
The detection capabilities of sensors and radars are limited. Always drive while checking
the safety of the surroundings of the vehicle.

The driver is solely responsible for safe driving. Always drive carefully, taking care to
observe your surroundings. The PKSB (Parking Support Brake) system is designed
to provide support to lessen the severity of collisions. However, it may not operate in
some situations.

The PKSB (Parking Support Brake) 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.

It is extremely dangerous to check the system operations by intentionally driving the
vehicle into the direction of a wall, etc. Never attempt such actions.

* : 

If equipped

6-2. Using the safe driving support functions

398

WARNING

When to disable the PKSB (Parking Support Brake) system

In the following situations, disable the PKSB (Parking Support Brake) 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

When equipment that may obstruct a sensor is installed, such as a towing eyelet,
bumper protector (an additional trim strip, etc.), bicycle carrier, or snow plow

When using automatic car washing devices

If the vehicle cannot be driven in a stable manner, such as when the vehicle has been in
an accident or is malfunctioning

When the vehicle is driven in a sporty manner or off-road

When the tires are not properly inflated

When the tires are very worn

When a tire chains, compact spare tire or an emergency tire puncture repair kit is
used

Precautions for the suspension

Do not modify the suspension of the vehicle. If the height or tilt of the vehicle is changed,
the sensors may not be able to detect detectable objects and the system may not operate
correctly, possibly leading to an accident.

System overview

If the PKSB (Parking Support Brake) determines that a collision with a detected
object or pedestrian is possible, the engine output will be restricted to restrain
any increase in the vehicle speed. (Engine output restriction control: See figure 2.)
Additionally, if the accelerator pedal continues to be depressed, the brakes will be
applied automatically to reduce the vehicle speed. (Brake control: See figure 3.)

Figure 1 When the PKSB (Parking Support Brake) is not operating

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A

Engine output

B

Braking force

C

Time

Figure 2 When engine output restriction control operates

 

A

Engine output

B

Braking force

C

Time

D

Engine output restriction control begins op-
erating (System determines that possibility
of collision with detected object is high)

Figure 3 When engine output restriction control and brake control operates

 

A

Engine output

B

Braking force

C

Time

D

Engine output restriction control begins op-
erating (System determines that possibility
of collision with detected object is high)

E

Brake control begins operating (System de-
termines that possibility of collision with de-
tected object is extremely high)

INFORMATION

If the PKSB (Parking Support Brake) system has operated

If the vehicle is stopped due to operation of the PKSB (Parking Support Brake), the PKSB
(Parking Support Brake) will be disabled and the driving assist infomation indicator will
illuminate.
If the PKSB (Parking Support Brake) system operates unnecessarily, brake control can
be canceled by depressing the brake pedal or waiting approximately 2 seconds for
it to automatically be canceled. Then, the vehicle can be operated by depressing the
accelerator pedal.

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Re-enabling the PKSB (Parking Support Brake) system

To re-enable the PKSB (Parking Support Brake) when it has been disabled due to
operation of the PKSB (Parking Support Brake), either enable the system again, or turn
the engine switch off and then back to ON.
Additionally, if any of the following conditions are met, the system will be re-enabled
automatically and the driving assist infomation indicator will turn off:

The P shift position is selected

The object is no longer detected in the traveling direction of the vehicle

The traveling direction of the vehicle changes

*1

Turning the PKSB (Parking Support Brake) system ON/OFF

The PKSB (Parking Support Brake) system can be changed between ON (ena-
bled) and OFF (disabled) on the center display.

1

Select 

 .

2

Select [Driving assist].

3

Select [Parking support brake] to change ON (enable)/OFF (disabled).

When the PKSB (Parking Support Brake) is disabled, the driving assist infomation
indicator illuminates.
When turned OFF (disabled), the PKSB (Parking Support Brake) will be disabled
and will not be enabled until the setting is changed to ON again in center display.
(The function will not be reenabled by operating the engine switch.)

PKSB (Parking Support Brake) function displays and buzzers

When the engine output restriction control or brake control operates, a buzzer
sounds and a message is displayed on the multi-information display, head-up
display

*

 and center display to alert the driver.  

Depending on the situation, output restriction control operates to either limit
acceleration or restrict output as much as possible.    

Engine output restriction control is operating (acceleration restriction) 

Acceleration greater than a certain amount is restricted by the system.

Multi-information display:"Object Detected Ahead Speed Reduced"

Head-up display

*

:"Object Detected Acceleration Reduced"

*1 : 

Except when the Pedestrians Rear of the Vehicle operated.

* : 

If equipped

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Center display: No warning displayed

Driving assist infomation indicator: Not illuminated

Buzzer: Does not sound

Engine output restriction control is operating (output restricted as much as
possible)

The system has determined that stronger-than-normal brake operation is neces-
sary.

Multi-information display and head-up display

*

: "BRAKE!"

Center display: "BRAKE!"

Driving assist infomation indicator: Not illuminated

Buzzer: Short beep

Brake control is operating

The system determined that emergency braking is necessary.

Multi-information display and head-up display

*

: "BRAKE!"

Center display: "BRAKE!"

Driving assist infomation indicator: Not illuminated

Buzzer: Short beep

Vehicle stopped by system operation

The vehicle has been stopped by brake control operation.

Multi-information display: "Accelerator Pedal is Pressed Press Brake Pedal" (If
the accelerator pedal is not depressed, "Press Brake Pedal" will be displayed.)

Head-up display

*

"Accelerator Pedal is Pressed Press Brake Pedal" (If the

accelerator pedal is not depressed, "Press Brake Pedal" will be displayed.)

Center display: "Press Brake Pedal"

Driving assist infomation indicator: Illuminated

Buzzer: Sounds repeatedly

Static Objects Front and Rear of the vehicle 

*

If the sensors detect a static object, such as a wall, in the travelling direction of the
vehicle and the system determines that a collision may occur due to the vehicle
suddenly moving forward due to an accidental accelerator pedal operation, the

* : 

If equipped

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vehicle moving the unintended direction due to the wrong shift position, or while
parking or traveling at low speeds, the system will operate to lessen the impact with
the detected static object and reduce the resulting damage.

INFORMATION

The system will operate when

The function will operate when the driving assist infomation indicator is not illuminated or
flashing and all of the following conditions are met:

Engine output restriction control

PKSB (Parking Support Brake) system is enabled.

The vehicle speed is approximately 15 km/h (9 mph) or less.  

There is a static object in the traveling direction of the vehicle (approximately 2 to 4
m [6 to 13 ft.] ahead).   

The Parking Support Brake determines that a stronger-than-normal brake opera-
tion is necessary to avoid a collision.

Brake control

Engine output restriction control is operating.

The Parking Support Brake determines that an immediate brake operation is
necessary to avoid a collision.

The system will stop operating when

The function will stop operating if any of the following conditions are met:

Engine output restriction control

PKSB (Parking Support Brake) system is disabled.

The system determines that the collision has become avoidable with normal brake
operation.

The static object is no longer in the traveling direction of the vehicle or approxi-
mately 2 to 4 m (6 to 13 ft.) away from the vehicle.

Brake control

PKSB (Parking Support Brake) system is disabled.

Approximately 2 seconds have elapsed since the vehicle was stopped by brake
control.

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

The static object is no longer in the traveling direction of the vehicle or approxi-
mately 2 to 4 m (6 to 13 ft.) away from the vehicle.

Detection range

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The detection range of the system differs from the detection range of the Lexus parking
assist-sensor.  
Therefore, even if the Lexus parking assist-sensor detects a static object and provides a
warning, the PKSB (Parking Support Brake) system may not start operating.

Lexus parking assist-sensor buzzer

Regardless of whether the Lexus parking assist-sensor buzzer is enabled or not, if the
PKSB (Parking Support Brake) system is enabled, 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.  

Situations in which the system may not operate properly

 P.379

Situations in which the system may operate even if there is no possibility of a
collision

 P.378

WARNING

If the PKSB (Parking Support Brake) system operates unnecessarily, such as at a
railroad crossing

 P.398

Static Objects Front and Rear of the vehicle sensors

 P.382

WARNING

To ensure the system can operate properly

 P.378

Notes when washing the vehicle

 P.382

Static Objects Front and Rear of the vehicle operation examples

The system operates in the following situations when a static object is detected in
the traveling direction of the vehicle.

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