Lexus NX (2023 year). Manual in english

INFORMATION

■

Display position (vehicles with a head-up display)

Depending on the display settings of the head-up display, some content may be displayed
on the head-up display and not in the content display area of the multi-information
display.

Pop-up display information

Pop-up displays will be displayed on the multi-information display or the head-up
display

when necessary.

When a pop-up display is displayed, a current display may no longer be displayed. In this
case, the display will return after the pop-up display disappears.

Driving support systems

Displays a warning/suggestion/advice message or the operating state of a relevant
system.

●

Dynamic radar cruise control

●

LTA (Lane Tracing Assist)

●

LDA (Lane Departure Alert)

●

LCA (Lane Change Assist)

●

Proactive Driving Assist

●

PCS (Pre-Collision System)

●

RSA (Road Sign Assist)

●

Safe Exit Assist (with door opening control)

●

FCTA (Front Cross Traffic Alert)

Warning message

Some warning messages are displayed when necessary, according to certain
conditions.

Hands-free system status

Displayed when the hands-free system is operated.

* :

If equipped

5-2. Functions of the displays

309

Vehicle st

us information and indicator

Suggestion function

Displays suggestions to the driver in the following situations. To select a response
to a displayed suggestion, use the steering switches.

■

Suggestion to enable the power back door

If the power back door system is disabled (setting on the center display set to off)
and the power back door switch on the instrument panel is operated, a suggestion
message will be displayed asking if you wish to enable the power back door
system.
To enable the power back door system, select [Yes].
After enabling the power back door system, press the power back door switch
again to open or close the power back door.

■

Suggestion to close the power windows (linked to windshield wiper operation)

If the windshield wipers are operated with a power window open, a suggestion
message will be displayed asking if you wish to close the power windows.
To close all of the power windows, select [Yes].

Related Links

Customizable features(P. 650)

Steering wheel switch operation display

■

Vehicles without a head-up display

Displayed when an audio remote control switch on the steering wheel is operated.

■

Vehicles with a head-up display

When a steering wheel switch is touched, the icon of each switch and a function
guide is displayed.

Related Links

Operating the meters/displays(P. 301)

Navigation system-linked information

In certain situations, the following items which are linked to the navigation system
will be displayed:

●

Route guidance to destination

●

Map display (displayed on the head-up display

)

* :

If equipped

5-2. Functions of the displays

310

Items displayed when the engine switch is turned off

The following items will be displayed on the multi-information display when the
engine switch is turned off.

●

Average fuel consumption since starting

●

Distance driven since starting

●

Driving time since starting

*1 :

It is reset each time the engine stops.

5-2. Functions of the displays

311

Vehicle st

us information and indicator

Changing the settings of the displays

Changing the instrument panel light brightness

The brightness of the instrument panel lights can be adjusted.

INFORMATION

The instrument panel brightness levels when the tail lights are on and off can be adjusted
individually.
However, when the surroundings are bright (daytime, etc.), turning on the tail lights will
not change the instrument panel brightness.

Darker

Brighter

5-3. Changing the settings of the displays

312

Changing settings for the head-up display

WARNING

●

Check that the position and brightness of the head-up display image does not inter-
fere with safe driving.
Incorrect adjustment of the image’s position or brightness may obstruct the driver’s
view and lead to an accident, resulting in death or serious injury.

●

As the engine needs to be running while changing the settings of the head-up display,
ensure that the vehicle is parked in a place with adequate ventilation. In a closed area
such as a garage, exhaust gases including harmful carbon monoxide (CO) may collect
and enter the vehicle. This may lead to death or a serious health hazard.

NOTICE

To prevent battery discharge, ensure that the engine is running while the changing the
settings of the head-up display.

INFORMATION

■

Changing settings with the steering wheel switches

If any of the following items have been set as as a favorite steering wheel switch function,
settings of the head-up display can be changed using the steering wheel switches.

●

: Display on/off

●

: Display mode

●

: Height

●

: Brightness

■

Enabling/disabling of the head-up display

If the head-up display is disabled, it will remain disabled when the engine switch is turned
off then back to ON.

■

Display brightness

In addition to the brightness setting, the brightness of the display will change automatical-
ly according to the ambient brightness.

5-3. Changing the settings of the displays

313

Vehicle st

us information and indicator

■

Head-up display automatic position adjustment (vehicles with driving position
memory)

If the display position is recorded into memory, the head-up display will be automatically
adjusted to the desired position.

Select

on the center display.

Select [Vehicle customise].

Select [Head-up display].

The following settings for the head-up display can be changed.

●

Display on/off

●

Display mode

●

Height

●

Brightness

●

Angle

Related Links

Customizable features(P. 650)

5-3. Changing the settings of the displays

314

Features of the safe driving support functions

Lexus Safety System +

Lexus Safety System + consists of the driving assist systems and contributes to a
safe and comfortable driving experience.

WARNING

■

Lexus Safety System +

Lexus Safety System + operates under the assumption that the driver will drive safely, and
is designed to help reduce the impact to the occupants in a collision and assist the driver
under normal driving conditions.
As 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 solely responsible
for paying attention to the vehicle’s surroundings and driving safely.

■

For safe use

●

Do not overly rely on this system. The driver is solely responsible for paying attention
to the vehicle’s surroundings and driving safely. This system may not operate in all
situations and provided assistance is limited. Over-reliance on this system to drive the
vehicle safely may lead to an accident resulting in death or serious injury.

●

Do not attempt to test the operation of the system, as it may not operate properly,
possibly leading to an accident.

●

If attention is necessary while performing driving operations or a system malfunction
occurs, a warning message or warning buzzer will be operated. If a warning message
is displayed on the display, follow the instructions displayed.

●

Depending on external noise, the volume of the audio system, etc. it may be difficult to
hear the warning buzzer. Also, depending on the road conditions, it may be difficult to
recognize the operation of the system.

■

When it is necessary to disable the system

In the following situations, make sure to disable the system.
Failure to do so may lead to the system not operating properly, possibly leading to an
accident resulting in death or serious injury.

●

When the vehicle is tilted due to being overloaded or having a flat tire

●

When driving at extremely high speeds

●

When towing another vehicle

●

When the vehicle is being transported by a truck, ship, train, etc.

●

When the vehicle is raised on a lift and the tires are allowed to rotate freely

●

When inspecting the vehicle using a drum tester such as a chassis dynamometer or
speedometer tester, or when using an on vehicle wheel balancer

6-1. Features of the safe driving support functions

316

WARNING

●

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

●

When using an automatic car wash

●

When a sensor is misaligned or deformed due to a strong impact being applied to the
sensor or the area around the sensor

●

When accessories which obstruct a sensor or light are temporarily installed to the
vehicle

●

When a compact spare tire or tire chains are installed to the vehicle or an emergency
tire puncture repair kit has been used

●

When the tires are excessively worn or the inflation pressure of the tires is low

●

When tires other than the manufacturer specified size are installed

●

When the vehicle cannot be driven stably, due to a collision, malfunction, etc.

■

Driving assist systems

●

AHS (Adaptive High-beam System)

→

P.176

●

AHB (Automatic High Beam)

→

P.180

●

PCS (Pre-Collision System)

→

P.334

●

LTA (Lane Tracing Assist)

→

P.347

●

LCA (Lane Change Assist)

→

P.352

●

LDA (Lane Departure Alert)

→

P.356

●

FCTA (Front Crossing Traffic Alert)

→

P.362

●

RSA (Road Sign Assist)

→

P.410

* :

If equipped

6-1. Features of the safe driving support functions

317

Driving suppor

t s

ystem

●

Dynamic radar cruise control

→

P.416

●

Emergency Driving Stop System

→

P.434

Sensors used by Lexus Safety System +

Various sensors are used to obtain the necessary information for system operation.

■

Front

Front radar sensor

Front camera

Front side radar sensors

■

Rear

Rear side radar sensors

WARNING

■

To prevent malfunction of the radar sensors

Observe the following precautions. Failure to do so may lead to a radar sensor not
operating properly, possibly leading to an accident resulting in death or serious injury.

●

Keep the radar sensors and radar sensor covers clean at all times.
Clean the front of a radar sensor or the front or back of a radar sensor cover if it is
dirty or covered with water droplets, snow, etc.
Clean the radar sensor and radar sensor cover with a soft cloth so as to not mark or
damage them.

* :

If equipped

6-1. Features of the safe driving support functions

318

WARNING

Radar sensor

Radar sensor cover

●

Do not attach accessories, stickers (including transparent stickers), aluminum tape,
etc. to a radar sensor or radar sensor cover and their surrounding area.

●

Do not subject a radar sensor or its surrounding area to impact.

●

If a radar sensor, the front grille, or front bumper has been subjected to a impact, have
the vehicle inspected by any authorized Lexus retailer or Lexus authorized repairer, or
any reliable repairer.

●

Do not disassemble the radar sensors.

●

Do not modify or paint the radar sensors or radar sensor cover, or replace them with
anything other than Lexus genuine parts.

●

In the following situations, recalibration of the radar sensors will be necessary.
Contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer for details.

•

When a radar sensor is removed and installed, or replaced

•

When the front bumper or the front grille has been replaced

■

To prevent malfunction of the front camera

Observe the following precautions. Failure to do so may lead to the front camera not
operating properly, possibly leading to an accident resulting in death or serious injury.

●

Always keep the windshield clean.

•

If the windshield is dirty or covered with an oily film, water droplets, snow, etc., clean
the windshield.

•

Even if a glass coating agent is applied to the windshield, it will still be necessary
to use the windshield wipers to remove water droplets, etc. from the area of the
windshield in front of the front camera.

•

If the inner side of the windshield where the front camera is installed is dirty, contact
any authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer
for details.

●

Do not attach stickers (including transparent stickers) or other items to the area of the
windshield in front of the front camera (shaded area in the illustration).

6-1. Features of the safe driving support functions

319

Driving suppor

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ystem

WARNING

Approximately 4cm (1.6 in.)

●

If the part of the windshield in front of the front camera is fogged up or covered with
condensation or ice, use the windshield defogger to remove the fog, condensation, or
ice.

●

If water droplets cannot be properly removed from the area of the windshield in front
of the front camera by the windshield wipers, replace the wiper insert or wiper blade.

●

Do not attach window tint to the windshield.

●

Replace the windshield if it is damaged or cracked.
If the windshield has been replaced, recalibration of the front camera will be necessa-
ry.
Contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer for details.

●

Do not allow liquids to contact the front camera.

●

Do not allow bright lights to shine into the front camera.

●

Do not damage the lens of the front camera or allow it to become dirty.
When cleaning the inside of the windshield, do not allow glass cleaner to contact the
lens of the front camera. Do not touch the lens of the front camera.
If the lens of the front camera is dirty or damaged, contact any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer for details.

●

Do not subject the front camera to a strong impact.

●

Do not change the position or orientation of the front camera or remove it.

●

Do not disassemble the front camera.

●

Do not modify any parts around the front camera, such as the inside rear view mirror
or ceiling.

●

Do not attach accessories which may obstruct the front camera to the hood, front
grille, or front bumper.
Contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer for details.

6-1. Features of the safe driving support functions

320

WARNING

●

If a surfboard or other long object is to be mounted on the roof, make sure that it will
not obstruct the front camera.

●

Do not modify or change the headlights and other lights.

■

Front camera installation area on the windshield

If the system determines that the windshield may be fogged up, it will automatically
operate the heater to defog the part of the windshield around the front camera. When
cleaning, etc., be careful not to touch the area around the front camera until the wind-
shield has cooled sufficiently, as touching it may cause burns.

INFORMATION

■

Situations in which the sensors may not operate properly

●

When the height or inclination of the vehicle has been changed due to modifications

●

When the windshield is dirty, fogged up, cracked or damaged

●

When a sensor is extremely hot

●

When mud, water, snow, dead insects, foreign matter, etc., is attached to the front of
the sensor

●

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

●

When water, snow, dust, etc. is thrown up in front of the vehicle, or when driving
through mist or smoke

●

When the headlights are not illuminated while driving in the dark, such as at night or
when in a tunnel

●

When the lens of a headlight is dirty and illumination is weak

●

When the headlights are misaligned

●

When a headlight is malfunctioning

●

When a the headlights of another vehicle, sunlight, or reflected light shines directly
into the front camera

●

When the brightness of the surrounding area changes suddenly

●

When driving near a TV tower, broadcasting station, electric power plant, radar
equipped vehicles, etc., or other location where strong radio waves or electrical noise
may be present

●

When a wiper blade is blocking the front camera

●

When in a location or near objects which strongly reflect radio waves, such as the
following:

•

Tunnels

6-1. Features of the safe driving support functions

321

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ystem

•

Truss bridges

•

Gravel roads

•

Rutted, snow-covered roads

•

Walls

•

Large trucks

•

Manhole covers

•

Metal plates

•

Guardrail

●

When near a step or protrusion

●

When a detectable vehicle is narrow, such as a small mobility vehicle

●

When a detectable vehicle has a small front or rear end, such as an unloaded truck

●

When a detectable vehicle has a low front or rear
end, such as a low bed trailer

●

When a detectable vehicle has extremely high
ground clearance

●

When a detectable vehicle is carrying a load which protrudes from its cargo area

●

When a detectable vehicle has little exposed metal, such as a vehicle which is partially
covered with cloth, etc.

●

When a detectable vehicle is irregularly shaped, such as a tractor, sidecar, etc.

●

When the distance between the vehicle and a detectable vehicle has become ex-
tremely short

●

When a detectable vehicle is at an angle

●

When a large amount of snow, mud, etc. is attached to a detectable vehicle

●

When driving on the following kinds of roads:

6-1. Features of the safe driving support functions

322

•

Roads with sharp curves or winding roads

•

Roads with changes in grade, such as sudden inclines or declines

•

Roads which is sloped to the left or right

•

Roads with deep ruts

•

Roads which are rough and unmaintained

•

Roads which frequently undulate or are bumpy

●

When the steering wheel is being operated frequently or suddenly

●

When the vehicle is not in a constant position within a lane

●

When parts related to this system, the brakes, etc. are extremely hot or cold, wet, etc.

●

When the wheels are misaligned

●

When driving on slick road surfaces, such as when it is covered with ice, snow, gravel,
etc.

●

When the course of the vehicle differs from the shape of a curve

●

When the vehicle speed is excessively high when entering a curve

●

When entering/exiting a parking lot, garage, car elevator, etc.

●

When driving in a parking lot

●

When driving through an area where there are obstructions which may contact your
vehicle, such as tall grass, tree branches, a curtain, etc.

■

Situations in which the lane may not be detected

●

When the lane is extremely wide or narrow

●

Immediately after changing lanes or passing through an intersection

●

When driving in a temporary lane or lane regulated by construction

●

When there are structures, patterns, shadows which are similar to lane lines in the
surrounding

●

When the lane lines are not clear or driving on a wet road surface

●

When a lane line is on a curb

●

When driving on a bright, reflective road surface, such as concrete

■

Situations in which some or all of the functions of the system cannot operate

●

When a malfunction is detected in this system or a related system, such as the brakes,
steering, etc.

●

When the VSC, TRC, or other safety related system is operating

●

When the VSC, TRC, or other safety related system is off

6-1. Features of the safe driving support functions

323

Driving suppor

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ystem

Driving assist systems

To keep driving safety and performance, the following systems operate automat-
ically in response to various driving situations. Be aware, however, that these
systems are supplementary and should not be relied upon too heavily when
operating the vehicle.

■

ABS (Anti-lock Brake System)

Helps to prevent wheel lock when the brakes are applied suddenly, or if the brakes
are applied while driving on a slippery road surface.

■

Brake assist

Generates an increased level of braking force after the brake pedal is depressed
when the system detects a panic stop situation.

■

VSC (Vehicle Stability Control)

Helps the driver to control skidding when swerving suddenly or turning on slippery
road surfaces.

■

VSC+ (Vehicle Stability Control+)

Provides cooperative control of the ABS, TRC, VSC and EPS.
Helps to maintain directional stability when swerving on slippery road surfaces by
controlling steering performance.

■

Trailer Sway Control

Helps the driver to control trailer sway by selectively applying brake pressure for
individual wheels and reducing driving torque when trailer sway is detected.

■

TRC (Traction Control)

Helps to maintain drive power and prevent the drive wheels from spinning when
starting the vehicle or accelerating on slippery roads

■

Active Cornering Assist (ACA)

Helps to prevent the vehicle from drifting to the outer side by performing inner
wheel brake control when attempting to accelerate while turning.

■

Hill-start assist control

Helps to reduce the backward movement of the vehicle when starting on an uphill.

■

VGRS (Variable Gear Ratio Steering)

Adjusts the front wheel turning angle in accordance with the vehicle speed and
steering wheel movement.

6-1. Features of the safe driving support functions

325

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ystem

■

EPS (Electric Power Steering)

Employs an electric motor to reduce the amount of effort needed to turn the
steering wheel.

■

Dynamic Torque Control AWD system (NX250: AWD models)

Automatically controls the drive system such as to front-wheel drive or AWD (all
wheel drive) according to various running conditions including normal driving,
during cornering, on a uphill, when starting off, during acceleration, on a slippery
roads due to snow or rain, thus contributing to stable operability and driving
stability.

■

Automatic Rear Flashing Hazard Lights

The rear side radar sensors detect following vehicles driving in the same lane. If the
system determines that the possibility of a rear-end collision is high, the emergency
flashers will flash rapidly to warn the driver of the following vehicle. Simultaneously,
a message will be displayed on the multi-information display to notify the driver of
the approach of the following vehicle.

■

Adaptive Variable Suspension System

By independently controlling the damping force of the shock absorbers for each of
the 4 wheels according to the road and driving conditions, this system helps riding
comfort with superior vehicle stability, and helps good vehicle posture.
Also, the damping force changes depending on the selected driving mode.

■

Emergency brake signal

When the brakes are applied suddenly, the stop lights automatically flash to alert
the vehicle behind.

■

The Secondary Collision Brake

When the SRS airbag sensor detects a collision and the system operates, the
brakes and brake lights are automatically controlled to reduce the vehicle speed
and help reduce the possibility of further damage due to a secondary collision.

* :

If equipped

6-1. Features of the safe driving support functions

326

INFORMATION

■

When the TRC/VSC/Trailer Sway Control systems are operating

The slip indicator light will flash while the TRC/VSC/
Trailer Sway Control systems are operating.

■

Disabling the TRC system

If the vehicle gets stuck in mud, dirt or snow, the TRC system may reduce power from the

engine to the wheels. Pressing [

] to turn the system off may make it easier for

you to rock the vehicle in order to free it.

To turn the TRC system off, quickly press and release [

The "Traction Control Turned OFF"will be shown on the multi-information display. Press

[

] again to turn the system back on.

■

Turning off both TRC, VSC and Trailer Sway Control systems

To turn the TRC, VSC and Trailer Sway Control systems off, press and hold [

] for

more than 3 seconds while the vehicle is stopped.

6-1. Features of the safe driving support functions

327

Driving suppor

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ystem

The VSC OFF indicator light will come on and the "Traction Control Turned OFF" will be

shown on the multi-information display. Press

again to turn the system back on.

■

When the message is displayed on the multi-information display showing that TRC

has been disabled even if [

] has not been pressed

TRC is temporary deactivated.
If the indicator light continues to remain on, contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer.

■

Operating conditions of hill-start assist control

When the following four conditions are met, the hill-start assist control will operate:

●

The shift position is in a position other than P or N (when starting off forward/back-
ward on an upward incline)

●

The vehicle is stopped

●

The accelerator pedal is not depressed

●

The parking brake is not engaged

●

Engine switch is turned to ON

■

Automatic system cancelation of hill-start assist control

The hill-start assist control will turn off in any of the following situations:

●

The shift position is shifted to P or N

●

The accelerator pedal is depressed

●

The parking brake is engaged

●

2 seconds at maximum elapsed after the brake pedal is released

●

Engine switch is turned to OFF

■

VGRS is disabled when

VGRS may stop operating in the following situations. In this event, the steering wheel may
move from its straight forward position, but it will return when the system restarts.

●

When the steering wheel is operated for an extended period of time while the vehicle
is stopped or is moving very slowly

●

When the steering wheel has been held fully to the left or right

The center position of the steering wheel may change when VGRS is disabled. However,
the position will return to normal after VGRS is reactivated.

6-1. Features of the safe driving support functions

328

■

Sounds and vibrations caused by the ABS, brake assist, VSC, Trailer Sway Control,
TRC and hill-start assist control systems

●

A sound may be heard from the engine compartment when the brake pedal is
depressed repeatedly, when the engine is started or just after the vehicle begins to
move. This sound does not indicate that a malfunction has occurred in any of these
systems.

●

Any of the following conditions may occur when the above systems are operating.
None of these indicates that a malfunction has occurred.

•

Vibrations may be felt through the vehicle body and steering.

•

A motor sound may be heard also after the vehicle comes to a stop.

•

The brake pedal may pulsate slightly after the ABS is activated.

•

The brake pedal may move down slightly after the ABS is activated.

■

Active Cornering Assist operation sounds and vibrations

When the Active Cornering Assist is operated, operation sounds and vibrations may be
generated from the brake system, but this is not a malfunction.

■

EPS and VGRS operation sound

When the steering wheel is operated, a motor sound (whirring sound) may be heard. This
does not indicate a malfunction.

■

Automatic reactivation of TRC, Trailer Sway Control and VSC systems

After turning the TRC, Trailer Sway Control and VSC systems off, the systems will be
automatically re-enabled in the following situations:

●

When the engine switch is turned off

●

If only the TRC system is turned off, the TRC will turn on when vehicle speed increases
If both the TRC and VSC systems are turned off, automatic re-enabling will not occur
when vehicle speed increases.

■

Operating conditions of Active Cornering Assist

The system operates when the following occurs.

●

TRC/VSC can operate

●

The driver is attempting to accelerate while turning

●

The system detects that the vehicle is drifting to the outer side

●

The brake pedal is released

■

Reduced effectiveness of the EPS system

The effectiveness of the EPS system is reduced to prevent the system from overheating
when there is frequent steering input over an extended period of time. The steering wheel
may feel heavy as a result.

6-1. Features of the safe driving support functions

329

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ystem

Should this occur, refrain from excessive steering input or stop the vehicle and turn the
engine off. The EPS system should return to normal within 10 minutes.

■

Operating conditions of Automatic Rear Flashing Hazard Lights

When the following two conditions are met, the Automatic Rear Flashing Hazard Lights
will operate:

●

The relative speed between your vehicle and the following vehicle is between approxi-
mately 30 and 100 km/h (19 and 62 mph).

●

Your vehicle is being driven at approximately 10 km/h (7 mph) or less or at any speed
with the brake pedal depressed.

■

Situations in which the Automatic Rear Flashing Hazard Lights may not operate
properly

●

In the following situations, the system may not detect a following vehicle properly:

•

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 driving up and down consecutive steep inclines, such as hills, dips in the road,
etc.

•

When the following vehicle is not approaching from straight behind your vehicle

•

When the following vehicle is approaching from an angle

•

If a vehicle suddenly cuts behind your vehicle

•

When the following vehicle is surrounded by other vehicles

•

When a bicycle carrier or other accessory is installed to the rear of your vehicle

●

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

•

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

•

When your vehicle is surrounded by other vehicles

•

When your vehicle is stopped to make a turn at an intersection, etc. and a vehicle
passes your vehicle from straight behind

•

When your vehicle is stopped on the roadside, etc. and a vehicle passes close to the
side of your vehicle

•

When a following vehicle closely approaches your vehicle before overtaking

6-1. Features of the safe driving support functions

330

•

When a following vehicle suddenly approaches to close to your vehicle

■

Operating conditions of emergency brake signal

When the following conditions are met, the emergency brake signal will operates:

●

The emergency flashers are off.

●

Actual vehicle speed is over 55 km/h (35 mph).

●

The system judges from the vehicle deceleration that it is a sudden braking operation.

■

Automatic system cancelation of emergency brake signal

The emergency brake signal will be canceled in any of the following situations:

●

The emergency flashers are turned on.

●

The system judges from the vehicle deceleration that is not a sudden braking opera-
tion.

■

Secondary Collision Brake operating conditions

The system operates when the SRS airbag sensor detects a collision while the vehicle is in
motion. However, the system does not operate in any of the following situations.

■

Secondary Collision Brake automatic cancelation

The system is automatically canceled in any of the following situations.

●

The vehicle speed drops to approximately 0 km/h(0 mph).

●

A certain amount of time elapses during operation

●

The accelerator pedal is depressed a large amount

WARNING

■

The ABS does not operate effectively when

●

The limits of tire gripping performance have been exceeded (such as excessively worn
tires on a snow covered road).

●

The vehicle hydroplanes while driving at high speed on wet or slick roads.

■

Stopping distance when the ABS is operating may exceed that of normal conditions

The ABS is not designed to shorten the vehicle's stopping distance. Always maintain a
safe distance from the vehicle in front of you, especially in the following situations:

●

When driving on dirt, gravel or snow-covered roads

●

When driving with tire chains

●

When driving over bumps in the road

●

When driving over roads with potholes or uneven surfaces

6-1. Features of the safe driving support functions

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ystem

WARNING

■

TRC/VSC may not operate effectively when

Directional control and power may not be achievable while driving on slippery road sur-
faces, even if the TRC/VSC system is operating. Drive the vehicle carefully in conditions
where stability and power may be lost.

■

Active Cornering Assist does not operate effectively when

●

Do not overly rely on Active Cornering Assist. Active Cornering Assist may not oper-
ate effectively when accelerating down slopes or driving on slippery road surfaces.

●

When Active Cornering Assist frequently operates, Active Cornering Assist may
temporarily stop operating to ensure proper operation of the brakes, TRC and VSC.

■

Hill-start assist control does not operate effectively when

●

Do not overly rely on hill-start assist control. Hill-start assist control may not operate
effectively on steep inclines and roads covered with ice.

●

Unlike the parking brake, hill-start assist control is not intended to hold the vehicle
stationary for an extended period of time. Do not attempt to use hill-start assist control
to hold the vehicle on an incline, as doing so may lead to an accident.

■

When the TRC/VSC/Trailer Sway Control is activated

The slip indicator light flashes. Always drive carefully. Reckless driving may cause an
accident. Exercise particular care when the indicator light flashes.

■

When the TRC/VSC/Trailer Sway Control systems are turned off

Be especially careful and drive at a speed appropriate to the road conditions.
As these are the systems to help ensure vehicle stability and driving force, do not turn the
TRC/VSC/Trailer Sway Control systems off unless necessary.
Trailer Sway Control is part of the VSC system and will not operate if VSC is turned off or
experiences a malfunction.

■

Replacing tires

Make sure that all tires are of the specified size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire
inflation pressure level.
The ABS, TRC, Trailer Sway Control and VSC systems will not function correctly if
different tires are installed on the vehicle.
Contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer for further information when replacing tires or wheels.

■

Handling of tires and the suspension

Using tires with any kind of problem or modifying the suspension will affect the driving
assist systems, and may cause a system to malfunction.

6-1. Features of the safe driving support functions

332

WARNING

■

Trailer Sway Control precaution

The Trailer Sway Control system is not able to reduce trailer sway in all situations.
Depending on many factors such as the conditions of the vehicle, trailer, road surface and
driving environment, the Trailer Sway Control system may not be effective. Refer to your
trailer owner's manual for information on how to tow your trailer properly.

■

If trailer sway occurs

Observe the following precautions. Failing to do so may cause death or serious injury.

●

Firmly grip the steering wheel. Steer straight ahead. Do not try to control trailer sway
by turning the steering wheel.

●

Begin releasing the accelerator pedal immediately but very gradually to reduce speed.
Do not increase speed. Do not apply vehicle brakes.
If you make no extreme correction with the steering or brakes, your vehicle and trailer
should stabilize.

■

Secondary Collision Brake

Do not rely solely upon the Secondary Collision Brake. This system is designed to help
reduce the possibility of further damage due to a secondary collision, however, that effect
changes according to various conditions. Overly relying on the system may result in
death or serious injury.

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ystem

Using the safe driving support functions

Pre-Collision System

PCS (Pre-Collision System)

The pre-collision system uses sensors to detect objects

(

→

P.334)

in the path of

the vehicle. When the system determines that the possibility of a frontal collision
with a detectable object is high, a warning operates to urge the driver to take
evasive action and the potential brake pressure is increased to help the driver avoid
the collision. If the system determines that the possibility of a collision is extremely
high, the brakes are automatically applied to help avoid the collision or help reduce
the impact of the collision.

The pre-collision system can be disabled/enabled and the warning timing can be changed.

(

→

P.346)

WARNING

■

For safe use

●

Driving safely is solely the responsibility of the driver. Pay careful attention to the
surrounding conditions in order to ensure safe driving. Never use the pre-collision
system in place of normal braking operations. This system cannot help avoid or reduce
the impact of a collision in every situation. Over-reliance on this system to drive the
vehicle safely may lead to an accident resulting in death or serious injury.

●

Although the pre-collision system is designed to help avoid or help reduce the impact
of a collision, its effectiveness may change according to various conditions. Therefore,
it may not always be able to achieve the same level of performance. Read the following
items carefully. Do not overly rely on this system and always drive carefully.

•

For safe use:

→

P.316

■

When to disable the pre-collision system

●

When it is necessary to disable the system:

→

P.316

Detectable objects

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

●

Vehicles

●

Bicycles

●

Pedestrians

●

Motorcycles

*1 :

Detected as a detectable object only when being ridden.

6-2. Using the safe driving support functions

334

System functions

■

Pre-collision warning

When the system determines that the possibility
of a collision is high, a buzzer will sound and an
icon and warning message will be displayed on
the multi-information display to urge the driver to
take evasive action.
If the detectable object is a vehicle, moderate
braking will be performed with the warning.
If the system determines that the accelerator
pedal is strongly depressed, the following icon
and message will be displayed on the multi-infor-
mation display.

■

Pre-collision brake assist

If the system determines that the possibility of a collision is high and the brake
operation by the driver is insufficient, the braking power will be increased.

■

Pre-collision brake control

If the system determines that the possibility of a collision is extremely high, the
brakes are automatically applied to help avoid the collision or reduce the impact of
the collision.
If the vehicle is stopped by pre-collision brake control, it will remain stopped until
the brake pedal is depressed.

■

Emergency steering assist

If the system determines that the following con-
ditions are met, assistance will be provided to
help enhance vehicle stability and prevent lane
departure. During assistance, in addition to the
pre-collision warning, the following icon will be
displayed on the multi-information display.

●

The possibility of a collision is high

●

There is sufficient space within the lane to perform evasive steering maneuvers

●

The driver is operating the steering wheel

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ystem

Vehicles with active steering function: The brakes and steering are controlled to
help avoid a collision or reduce the impact of a collision, regardless of the evasive
steering maneuvers performed by the driver.
During assistance, the pre-collision warning will operate and a message will be
displayed to warn the driver.

■

Intersection collision avoidance support (left/right turn)

In situations such as the following, if the system determines that the possibility of
a collision is high, the pre-collision warning and pre-collision braking will operate.
Depending on the intersection, assistance may not operate correctly.

●

When turning left/right at an intersection and
crossing the path of an oncoming vehicle

●

When turning left/right and an oncoming pe-
destrian or bicycle is detected

■

Intersection collision avoidance support (crossing vehicles)

At an intersection, etc., if the system determines
that the possibility of a collision with an ap-
proaching vehicle or motorcycle is high, the
pre-collision warning and pre-collision braking
will operate. Depending on the intersection, as-
sistance may not operate correctly.

6-2. Using the safe driving support functions

336

■

Acceleration Suppression at Low Speed

When driving at a low speed, if the accelerator
pedal is strongly depressed and the system de-
termines that there is a possibility of a collision,
engine output will be restrained or the brakes will
be applied weakly to restrict acceleration. During
operation, a buzzer will sound and a warning
indicator and message will be displayed on the
multi-information display.

■

Suspension control

When the system determines that the possibility of a collision is high, the Adaptive
Variable Suspension system

(

→

P.326)

controls the damping force of the shock

absorbers to help maintain an appropriate vehicle posture.

WARNING

■

Pre-collision braking

●

When the pre-collision braking function is operating, a large amount of braking force
will be applied.

●

If the vehicle is stopped by pre-collision braking function, the driver should operate the
brakes as necessary.

●

In the following situations, brake hold will not operate after the pre-collision braking
function has operated. Depending on the situation, the driver should operate the brake
pedal immediately.

•

When the accelerator pedal is depressed

•

When the vehicle is stopped by intersection collision avoidance support

•

When the vehicle is stopped on a steep slope

●

The pre-collision braking function may not operate if certain operations are per-
formed by the driver. If the accelerator pedal is being depressed strongly or the
steering wheel is being turned, the system may determine that the driver is taking
evasive action and possibly prevent the pre-collision braking function from operating.

●

If the brake pedal is being depressed, the system may determine that the driver is
taking evasive action and possibly delay the operation timing of the pre-collision brake
control.

■

Acceleration Suppression at Low Speed function

If the steering wheel is being turned, the system may determine that the driver is taking
evasive action and possibly prevent the Acceleration Suppression at Low Speed function
from operating.

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337

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ystem

WARNING

■

Emergency steering assist

●

The emergency steering assist will be canceled when the system determines that lane
departure prevention control has completed.

●

Depending on operations performed by the driver, emergency steering assist may not
operate or operation may be canceled.

•

If the accelerator pedal is depressed strongly, the steering wheel is turned heavily,
the brake pedal is depressed, or the turn signal lever is operated, the system may
determine that the driver is taking evasive action and the emergency steering assist
may not operate.

•

While the emergency steering assist is operating, if the accelerator pedal is
depressed strongly, the steering wheel is turned heavily, or the brake pedal is
depressed, the system may determine that the driver is taking evasive action and
emergency steering assist operation may be canceled.

•

While the emergency steering assist is operating, if the steering wheel is held or
turned in the opposite direction of system operation, emergency steering assist
operation will be canceled.

INFORMATION

■

Operating conditions of each function of the pre-collision system

The pre-collision system is enabled and the system determines that the possibility of a
frontal collision with a detected object is high.
However, the system will not operate in the following situations:

●

When the vehicle has not been driven a certain amount after a terminal of the battery
has been disconnected and reconnected

●

When the shift lever is in R
When the shift position is in R

●

When the VSC OFF indicator is illuminated (only the pre-collision warning function
will be operational)

The following are the operational speeds and cancelation conditions of each function:

●

Pre-collision warning

Detectable ob-

jects

Vehicle speed

Relative speed between your

vehicle and object

Preceding vehi-
cles, stopped ve-
hicles

Approximately 5 to 180
km/h (3 to 110 mph)

Approximately 5 to 180 km/h
(3 to 110 mph)

6-2. Using the safe driving support functions

338

Detectable ob-

jects

Vehicle speed

Relative speed between your

vehicle and object

Oncoming vehi-
cles

Approximately 30 to 180
km/h (20 to 110 mph)

Approximately 80 to 220
km/h (50 to 130 mph)

Bicycles

Approximately 5 to 80 km/h
(3 to 50 mph)

Approximately 5 to 80 km/h (3
to 50 mph)

Pedestrians

Approximately 5 to 80 km/h
(3 to 50 mph)

Approximately 5 to 80 km/h (3
to 50 mph)

Preceding motor-
cycles, stopped
motorcycles

Approximately 5 to 180
km/h (3 to 110 mph)

Approximately 5 to 80 km/h (3
to 50 mph)

Oncoming motor-
cycles

Approximately 30 to 180
km/h (20 to 110 mph)

Approximately 30 to 180 km/h
(20 to 110 mph)

While the pre-collision warning is operating, if the steering wheel is operated heavily
or suddenly, the pre-collision warning may be cancelled.

●

Pre-collision brake assist

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding vehi-
cles, stopped vehi-
cles

Approximately 30 to 180
km/h (20 to 110 mph)

Approximately 10 to 180 km/h
(7 to 110 mph)

Bicycles

Approximately 30 to 80
km/h (20 to 50 mph)

Approximately 30 to 80 km/h
(20 to 50 mph)

Pedestrians

Approximately 30 to 80
km/h (20 to 50 mph)

Approximately 30 to 80 km/h
(20 to 50 mph)

Preceding motor-
cycles, stopped
motorcycles

Approximately 30 to 180
km/h (20 to 110 mph)

Approximately 10 to 80 km/h
(7 to 50 mph)

●

Pre-collision braking

Detectable ob-

jects

Vehicle speed

Relative speed between your

vehicle and object

Preceding vehi-
cles, stopped ve-
hicles

Approximately 5 to 180
km/h (3 to 110 mph)

Approximately 5 to 180 km/h
(3 to 110 mph)

6-2. Using the safe driving support functions

339

Driving suppor

t s

ystem

Detectable ob-

jects

Vehicle speed

Relative speed between your

vehicle and object

Oncoming vehi-
cles

Approximately 30 to 180
km/h (20 to 110 mph)

Approximately 80 to 220
km/h (50 to 130 mph)

Bicycles

Approximately 5 to 80 km/h
(3 to 50 mph)

Approximately 5 to 80 km/h (3
to 50 mph)

Pedestrians

Approximately 5 to 80 km/h
(3 to 50 mph)

Approximately 5 to 80 km/h (3
to 50 mph)

Preceding motor-
cycles, stopped
motorcycles

Approximately 5 to 180
km/h (3 to 110 mph)

Approximately 5 to 80 km/h (3
to 50 mph)

Oncoming motor-
cycles

Approximately 30 to 180
km/h (20 to 110 mph)

Approximately 30 to 180 km/h
(20 to 110 mph)

If either of the following occur while the pre-collision braking function is operating, it
will be canceled:

•

The accelerator pedal is strongly depressed

•

The steering wheel is operated heavily or suddenly

●

Emergency steering assist
The emergency steering assist will not operate when the turn signal lights are flashing.

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding vehicles,
stopped vehicles, bicy-
cles, pedestrians, mo-
torcycles

Approximately 40 to 80
km/h (25 to 50 mph)
Active steering function: *
to 80 km/h (* to 50 mph)

Approximately 40 to 80
km/h (25 to 50 mph)
Active steering function: * to
80 km/h (* to 50 mph)

*Minimum vehicle speed: Vehicle speed at which evasion using pre-collision brake
control is difficult

While the emergency steering assist is operating, if any of the following are performed,
emergency steering assist operation may be cancelled:

•

The accelerator pedal is strongly depressed

•

The steering wheel is operated heavily or suddenly

•

The brake pedal is depressed

●

Intersection collision avoidance support (left/right turn)

6-2. Using the safe driving support functions

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Lexus NX (2023 year). Manual in english - page 10