Lexus NX (2022 year). Manual in english - page 23

•

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

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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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