Lexus RX350h (2023 year). Manual in english

250

4-5. Using the driving support systems

4-5.Using the driving support systems

This Owner’s Manual contains infor-
mation for Ver. 2. For the latest infor-
mation about the controls, use,
warnings/precautions, etc. of each
function of Lexus Safety System +
3/Traffic Jam Assist, refer to the Digital
Owner’s Manual at the Owner’s Man-
ual website.
If the software of this system has been
updated after initial purchase of the
vehicle, before using this system, be
sure to read the Owner’s Manual
which corresponds to the software ver-

sion of the system.

■

Precautions for use

●

Be aware that some functions may tem-

porarily be disabled if a legal or safety

related issue occurs.

●

If a connected services contract has not

been entered or has expired, software

updates will not be able to be performed

wirelessly.

If the software of this system has been
updated after initial purchase of the
vehicle, to access the appropriate
Owner’s Manual, it is necessary to
check the software version of the sys-
tem and then visit the Owner’s Manual
website.

The software version of the system can
be checked using Lexus App.

Access the following URL using a
computer or smartphone:



For U.S.A. owners

https://drivers.lexus.com/lexusdrivers/
resources/owners-manuals/manual?
om=om0e095u.rx.2023.2210.hev.vh

Lexus Safety System +
3/Traffic Jam Assist software
update

It is necessary to enter a connected
services contract, provided by
Lexus, to use these functions. For
details, contact your Lexus dealer.

WARNING

■

For safe use

When the Lexus Safety System + 3/Traf-

fic Jam Assist software is updated, the

operating methods of functions may

change. Using this system without know-

ing the correct operating methods may

lead to an accident resulting in death or

serious injury.

●

Make sure to read the Digital Owner’s

Manual which corresponds to the soft-

ware version of the system, available at

the Owner’s Manual website, before

using this system.

Content of the Lexus Safety Sys-
tem + 3/Traffic Jam Assist
Owner’s Manual

Checking your vehicle’s Lexus
Safety System + 3/Traffic Jam
Assist version

Checking the version using Lexus
App

Using your vehicle’s Lexus Safety
System + 3/Traffic Jam Assist ver-
sion

251

4-5. Using the driving support systems

Driving



For Canadian owners

https://www.lexus.ca/lexus/
know-your-lexus/manual?
om=om0e095u.rx.2023.2210.hev.vh

Select the file which includes the
previously checked system version.

If a software update is available, a noti-
fication will be displayed by Lexus App.
Follow the instructions displayed on the
screen.

■

Software update precautions

●

After a software update has been per-

formed, it will not be possible to revert to

a previous version.

●

Depending on the communication envi-

ronment and the content of an update, a

software update may take several hours.

Although an update will be suspended

when the power switch is turned off, it will

resume when the power switch is

changed back to ON.

●

Lexus Safety System + 3/Traffic Jam

Assist can still be used while a software

update is being performed.

■

What can be checked using the Lexus

App

The following items can be checked or per-

formed.

●

Software version, update details, precau-

tions, use methods, etc.

●

Software update

Updating the software

252

4-5. Using the driving support systems

Lexus Safety System + 3

The Lexus Safety System + 3 con-
sists of the driving assist systems
and contributes to a safe and com-
fortable driving experience:

WARNING

■

Lexus Safety System + 3

The Lexus Safety System + 3 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 nor-

mal driving conditions.

As there is a limit to the degree of recog-

nition 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 prop-

erly, possibly leading to an accident.

●

If attention is necessary while perform-

ing driving operations or a system mal-

function occurs, a warning message or

warning buzzer will be operated. If a

warning message is displayed on the

display, follow the instructions dis-

played.

●

Depending on external noise, the vol-

ume of the audio system, etc. it may be

difficult to hear the warning buzzer.

Also, depending on the road condi-

tions, 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 seri-

ous 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 dyna-

mometer or speedometer tester, or

when using an on vehicle wheel bal-

ancer

●

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

253

4-5. Using the driving support systems

Driving

■

AHS (Adaptive High-beam Sys-
tem)



P.234

: If equipped

■

AHB (Automatic High Beam)



P.237

: If equipped

■

PCS (Pre-Collision System)



P.261

■

LTA (Lane Tracing Assist)



P.271

■

LDA (Lane Departure Alert)



P.279

■

LCA (Lane Change Assist)



P.276

: If equipped

■

FCTA (Front Cross Traffic Alert)



P.290

: If equipped

■

PDA (Proactive Driving Assist)



P.285

■

RSA (Road Sign Assist)



P.293

: If equipped

■

Dynamic radar cruise control



P.295

■

Cruise control



P.306

■

Emergency Driving Stop System



P.311

■

Traffic Jam Assist



P.313

: If equipped

■

Driver monitor



P.259

: If equipped

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

■

Sensors which detect the sur-
rounding conditions

Front radar sensor
Front camera

WARNING

●

When the tires are excessively worn or

the inflation pressure of the tires is low

●

When tires other than the manufac-

turer specified size are installed

●

When the vehicle cannot be driven

stably, due to a collision, malfunction,

etc.

Driving assist systems

Sensors used by Lexus Safety
System + 3

A
B

254

4-5. Using the driving support systems

Front side radar sensors

Rear side radar sensors

: If equipped

■

Sensors which detect the driver
condition

Driver monitor camera

: If equipped

WARNING

■

To prevent malfunction of the radar

sensors

Observe the following precautions.

Failure to do so may lead to a radar sen-

sor not operating properly, possibly lead-

ing to an accident resulting in death or

serious injury.

C
D

●

Keep the radar sensors and radar sen-

sor 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.
When cleaning the radar sensor and

radar sensor cover, use a soft cloth to

remove dirt so as to not damage them.

Radar sensor
Radar sensor cover

●

Vehicles with front side radar sensors:

Keep the surrounding area of the front

side radar sensors on the front bumper

clean at all times.

●

Do not attach accessories, stickers

(including transparent stickers), alumi-

num tape, etc. to a radar sensor or

radar sensor cover and their surround-

ing 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

your Lexus dealer.

A
B

255

4-5. Using the driving support systems

Driving

WARNING

●

Do not disassemble the radar sensors.

●

Do not modify or paint the radar sen-

sors or radar sensor cover, or replace

them with anything other than Lexus

genuine parts.

●

In the following situations, recalibra-

tion of the radar sensors will be neces-

sary. For details, contact your Lexus

dealer.

• When a radar sensor is removed and

installed, or replaced

• When the front bumper or the front

grille has been replaced

■

Radar sensor cover with a heater (if

equipped)

When the system determines that snow

may pile up over the radar sensor cover,

the heater will operate automatically. If

the area around the radar sensor cover is

to be touched, such as during cleaning,

make sure that the radar sensor cover is

cool enough to prevent burns.

■

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 neces-

sary 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 your Lexus dealer.

●

Do not attach stickers (including trans-

parent stickers) or other items to the

area of the windshield in front of the

front camera (shaded area in the illus-

tration).

Approximately 1.6 in. (4 cm)
Approximately 1.6 in. (4 cm)

●

If the part of the windshield in front of

the front camera is fogged up or cov-

ered 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 wind-

shield in front of the front camera by

the windshield wipers, replace the

wiper insert or wiper blade.

●

Do not attach window tint to the wind-

shield.

●

Replace the windshield if it is damaged

or cracked.

If the windshield has been replaced,

recalibration of the front camera will

be necessary. For details, contact your

Lexus dealer.

●

Do not allow liquids to contact the

front camera.

●

Do not allow bright lights to shine into

the front camera.

A
B

256

4-5. Using the driving support systems

■

Precautions for use

Vehicles with a 9.8 inch display audio: It is

necessary to enter a connected services

contract, provided by Lexus, to use these

functions. For details, contact your Lexus

dealer.

●

Radar Cruise Control: Extended resume

time

WARNING

●

Do not damage the lens of the front

camera or allow it to become dirty.

When cleaning the inside of the wind-

shield, do not allow glass cleaner to

contact the lens of the front camera.

Do not touch the lens of the front cam-

era.

If the lens of the front camera is dirty or

damaged, contact your Lexus dealer.

●

Do not subject the front camera to a

strong impact.

●

Do not change the position or orienta-

tion 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. For details,

contact your Lexus dealer.

●

If a surfboard or other long object is to

be mounted on the roof, make sure

that it will not obstruct the front cam-

era.

●

Do not modify or change the head-

lights and other lights.

■

Front camera installation area on the

windshield

If the system determines that the wind-

shield may be fogged up, it will automati-

cally operate the heater to defog the part

of the windshield around the front cam-

era. When cleaning, etc., be careful not

to touch the area around the front cam-

era until the windshield has cooled suffi-

ciently, as touching it may cause burns.

■

Precautions for the driver monitor

camera (if equipped)

Observe the following precautions.

Failure to do so may lead to malfunction

of the driver monitor camera and the sys-

tems not operating properly, possibly

leading to an accident resulting in death

or serious injury.

●

Do not subject the driver monitor

camera or its surrounding area to

strong impact.

●

If subjected to a strong impact, the

driver monitor camera may move out

of alignment and the driver may no

longer be detected correctly. In this

case, have the vehicle inspected by

your Lexus dealer.

●

Do not disassemble or modify the

driver monitor camera.

●

Do not attach accessories, stickers

(including transparent stickers), etc. to

the driver monitor camera or its sur-

rounding area.

●

Do not allow the driver monitor cam-

era or its surrounding area to get wet.

●

Do not cover the driver monitor cam-

era or place anything in front of it.

●

Keep the lens of the driver monitor

camera free from damage.

●

Do not touch the lens of the driver

monitor camera or allow it to become

dirty.

When there is dirt or fingerprints on the

camera lens, clean it with a dry, soft cloth

so as to not mark or damage it.

●

When cleaning the lens, do not use

detergents or organic solvents that

may damage plastic.

257

4-5. Using the driving support systems

Driving



P.295

●

Traffic Jam Assist (if equipped)



P.313

■

Situations in which the sensors may not

operate properly

●

When the height or inclination of the

vehicle has been changed due to modifi-

cations

●

When the windshield is dirty, fogged up,

cracked or damaged

●

When the ambient temperature is high or

low

●

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 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, broad-

casting 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

• Truss bridges

• Gravel roads

• Rutted, snow-covered roads

• Walls

• Large trucks

• Manhole covers

• Guardrail

• Metal plates

●

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

extremely short

●

When a detectable vehicle is at an angle

●

When snow, mud, etc. is attached to a

detectable vehicle

●

When driving on the following kinds of

roads:

• Roads with sharp curves or winding

roads

258

4-5. Using the driving support systems

• 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 unmain-

tained

• Roads which frequently undulate or are

bumpy

●

When the steering wheel is being oper-

ated 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 cold or extremely hot,

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.

●

When driving in strong wind

■

Situations in which the lane may not be

detected

●

When the lane is extremely wide or nar-

row

●

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 there are multiple white lines for a

lane line

●

When the lane lines are not clear or driv-

ing 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, TRAC, or other safety

related system is operating

●

When the VSC, TRAC, or other safety

related system is off

■

Changes in brake operation sound and

pedal response

●

When the brakes have been operated,

brake operation sounds may be heard

and the brake pedal response may

change, but this does not indicate a mal-

function.

●

When the system is operating, the brake

pedal may feel stiffer than expected or

sink. In either situation the brake pedal

can be depressed further. Further

depress the brake pedal as necessary.

■

Situations in which the driver monitor

may not operate properly (if equipped)

In situations such as the following, the driver

monitor camera may not be able to detect

the driver’s face, and the function may not

operate properly.

●

When the inside of the vehicle is hot, such

as after the vehicle has been parked in

the sun

●

When a very bright light, such as the sun

or the headlights of following vehicle,

shines onto the driver monitor camera

●

When the brightness inside the vehicle

changes frequently due to the shadows of

surrounding structures, etc.

●

When a very bright light, such as the sun

or the headlights of an oncoming vehicle,

is shining onto the driver’s face

●

When light, either inside or outside of the

vehicle, is being reflected from the lenses

of eyeglasses or sunglasses

●

When there are multiple faces in the

detection range of the driver monitor

259

4-5. Using the driving support systems

Driving

camera, such as when a front or rear pas-

senger is leaning toward the driver’s seat

●

When the driver’s face is outside of the

detection range of the driver monitor

camera, such as when leaned forward or

when their head is outside of the window

●

When the driver monitor camera is being

blocked by the steering wheel, a hand

holding the steering wheel, an arm, etc.

●

When the driver is wearing a hat

●

When the driver is wearing an eyepatch

●

When the driver is wearing eyeglasses or

sunglasses that do not easily transmit

infrared rays

●

When the driver is wearing contact

lenses

●

When the driver is wearing a face mask

●

When the driver is laughing or their eyes

are only slightly open

●

When the driver’s eyes, nose, mouth, or

shape of their face is blocked

●

When the driver is wearing makeup

which makes it difficult to detect their

eyes, nose, mouth, or shape of their face

●

When the driver’s eyes are blocked by

the frame of eyeglasses, sunglasses, hair,

etc.

●

When there is a device inside the vehicle

that radiates near infrared rays, such as a

non-genuine driver monitoring system.

: If equipped

During controlled driving, the driver
monitor camera detects the position
and direction the driver is facing, and
whether their eyes are opened or
closed. Through this, the system deter-
mines if the driver is checking their sur-
roundings and if the driver can perform
driving operations.

■

Warning function

In situations such as the following, a
buzzer will sound and a message will
be displayed to warn the driver.



When the system determines that
the driver is not paying attention to
the road or their eyes are closed



When the driver’s face cannot be
detected or the system determines
that the driver has poor driving pos-
ture

■

Face identification

The driver monitor is used as a device
to identify faces in order to identify an
individual.

Driver monitor

Basic functions

260

4-5. Using the driving support systems

For information about how to use the
face identification function, priorities
among other devices of individual
identification, and linked vehicle set-
tings, see “My Settings”. (



P.182)

■

Warning function

These functions may not operate when the

vehicle speed is low.

■

Face identification

Face identification starts when the door is

opened then closed.
In face identification, facial traits are digi-

tized and stored in a built-in computer, to be

used for identification in My Settings.

●

Face image or video are not stored. Voice

is not stored either.

●

Digitized face information is not used for

any purpose other than identification in

My Settings. Additionally, face informa-

tion cannot be decoded and will not be

disclosed or provided to a third party.

●

Face information stored in the vehicle

computer cannot be decoded or moved

to another media. Therefore, it is neces-

sary to register face information again

once it is deleted or relevant parts are

replaced.

●

Face information can be deleted by your-

self.

●

Once deleted, face information cannot

be restored. It is necessary to register

face information again.

■

Situations where face identification may

not be performed correctly

This system is designed for use to identify

facial traits. In the following situations, face

information may not be able to be regis-

tered or identified correctly:

●

When a part of the driver’s face (eye-

brows, eyes, nose, or mouth) is not visible

●

When the driver is wearing glasses/sun

glasses, a face mask, muffler, etc.

●

When the driver is not facing front

●

When part of driver’s face is covered with

hair, beard, a hand, clothes, jewelry, etc.

●

When the driver is closing eyes

●

When a non-registered driver is a twin,

etc. with a registered driver, whose face

looks quite alike with each other

■

Situations in which the driver monitor

may not operate properly



P.258

The settings of Driver monitor can be
changed through customize settings.
(



P.590)

WARNING

■

For safe use

●

The driver monitor is not designed to

prevent the driver from driving care-

lessly or having a poor driving posture.

Pay careful attention to the surround-

ing conditions in order to ensure safe

driving.

●

The driver monitor cannot reduce

drowsiness. If you feel unable to con-

centrate or drowsy, take a break and

sleep as necessary in order to ensure

safe driving.

Changing Driver monitor set-
tings

261

4-5. Using the driving support systems

Driving

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



Vehicles



Bicycles



Pedestrians



Motorcycles



Walls

: Detected as a detectable object only

when being ridden.

■

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.

PCS (Pre-Collision System)

The pre-collision system uses sen-
sors to detect objects (



P.261) in

the path of the vehicle. When the
system determines that the possi-
bility 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 possi-
bility of a collision is extremely high,
the brakes are automatically
applied to help avoid the collision or
help reduce the impact of the colli-
sion.

The pre-collision system can be dis-
abled/enabled and the warning tim-
ing can be changed. (



P.270)

WARNING

■

For safe use

●

Driving safely is solely the responsibil-

ity 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 effective-

ness 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.252

■

When to disable the pre-collision sys-

tem

●

When it is necessary to disable the sys-

tem:



P.252

Detectable objects

System functions

262

4-5. Using the driving support systems

If the detectable object is a vehicle,
moderate braking will be performed
with the warning.

If the system determines that the accel-
erator pedal is strongly depressed, the
following icon and message will be dis-
played on the multi-information dis-
play.

■

Pre-collision brake assist

If the system determines that the possi-
bility 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 possi-
bility of a collision is extremely high, the
brakes are automatically applied to
help avoid the collision or reduce the
impact of the collision.

■

Emergency steering assist

If the system determines that the fol-

lowing conditions are met, assistance
will be provided to help enhance vehi-
cle stability and prevent lane depar-
ture. 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

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.

263

4-5. Using the driving support systems

Driving

Depending on the intersection, assis-
tance may not operate correctly.



When turning left/right at an inter-
section and crossing the path of an
oncoming vehicle



When turning left/right and a
pedestrian or bicycle is detected

■

Intersection collision avoidance
support (crossing vehicles)

At an intersection, etc., if the system
determines that the possibility of a col-
lision with an approaching vehicle or
motorcycle is high, the pre-collision
warning and pre-collision braking will
operate.
Depending on the intersection, assis-
tance may not operate correctly.

■

Acceleration Suppression at Low
Speed

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

■

Suspension control (if equipped)

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



P.394) controls the damping force

of the shock absorbers to help maintain
an appropriate vehicle posture.

264

4-5. Using the driving support systems

■

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:

WARNING

■

Pre-collision braking

●

When the pre-collision braking func-

tion is operating, a large amount of

braking force will be applied.

●

The pre-collision braking function is

not designed to hold the vehicle

stopped. If the vehicle is stopped by

pre-collision brake control, the driver

should operate the brakes immedi-

ately as necessary.

●

The pre-collision braking function may

not operate if certain operations are

performed by the driver. If the acceler-

ator pedal is being depressed strongly

or the steering wheel is being turned,

the system may determine that the

driver is taking evasive action and pos-

sibly 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 pos-

sibly delay the operation timing of the

pre-collision brake control.

■

Acceleration Suppression at Low

Speed

If the steering wheel is being turned, the

system may determine that the driver is

taking evasive action and possibly pre-

vent the Acceleration Suppression at

Low Speed function from operating or

possibly causing its operation to be can-

celed.

■

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 emer-

gency 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 opera-

tion 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 steer-

ing assist operation will be canceled.

265

4-5. Using the driving support systems

Driving

●

When the vehicle has not been driven a certain amount after a terminal of the 12-volt bat-

tery has been disconnected and reconnected

●

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

While the pre-collision warning is operating, if the steering wheel is operated heavily or sud-

denly, the pre-collision warning may be cancelled.

●

Pre-collision brake assist

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding vehicles, stopped
vehicles

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

Oncoming vehicles

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

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

Bicycles

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

Pedestrians

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

Preceding motorcycles,
stopped motorcycles

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

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

Oncoming motorcycles

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

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding vehicles, stopped
vehicles

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

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

Bicycles

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

Pedestrians

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

Preceding motorcycles,
stopped motorcycles

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

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

266

4-5. Using the driving support systems

●

Pre-collision braking

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.

: Minimum vehicle speed: Vehicle speed at which evasion using pre-collision brake con-

trol 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)

The intersection collision avoidance support (for left/right turning vehicles) will not operate

when the turn signal lights are not flashing.

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding vehicles, stopped
vehicles

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

Oncoming vehicles

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

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

Bicycles

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

Pedestrians

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

Preceding motorcycles,
stopped motorcycles

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

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

Oncoming motorcycles

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

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding vehicles, stopped
vehicles, bicycles, pedestri-
ans, motorcycles

Approximately 25 to 50
mph (40 to 80 km/h)

Active steering function:

50 mph (

to 80 km/h)

Approximately 25 to 50
mph (40 to 80 km/h)

Active steering function:

50 mph (

to 80 km/h)

267

4-5. Using the driving support systems

Driving

●

Intersection collision avoidance support (crossing vehicles)



Vehicles without front side radars



Vehicles with front side radars

When driving at approximately 29 mph (40 km/h) or more, this system will only operate

when the speed of the other vehicle is approximately 29 mph (40 km/h) or less.
The system operates only when the crossing vehicle speed is same as or less than the vehi-

cle speed.

●

Acceleration Suppression at Low Speed

The Acceleration Suppression at Low Speed function will not operate when the turn signal

Detectable objects

Vehicle speed

Oncoming vehicle
speed

Relative speed
between your vehi-
cle and object

Oncoming vehicles

Approximately 3 to
25 mph (5 to 40
km/h)

Approximately 3 to
45 mph (5 to 75
km/h)

Approximately 7 to
70 mph (10 to 115
km/h)

Pedestrians

Approximately 3 to
20 mph (5 to 30
km/h)



Approximately 3 to

25 mph (5 to 40

km/h)

Bicycles

Approximately 3 to
20 mph (5 to 30
km/h)



Approximately 3 to

30 mph (5 to 50

km/h)

Oncoming motorcy-
cles

Approximately 3 to
25 mph (5 to 40
km/h)

Approximately 3 to
45 mph (5 to 75
km/h)

Approximately 7 to
70 mph (10 to 115
km/h)

Detectable objects

Vehicle speed

Crossing vehicle
speed

Relative speed
between your vehi-
cle and object

Vehicles, Motorcy-
cles (side)

Approximately 3 to
38 mph (5 to 60
km/h)

• Your vehicle speed

or less

• Approximately 25

mph or less (40
km/h or less)

Approximately 3 to
38 mph (5 to 60
km/h)

Detectable objects

Vehicle speed

Crossing vehicle
speed

Relative speed
between your vehi-
cle and object

Vehicles, Motorcy-
cles (side)

Approximately 3 to
38 mph (5 to 60
km/h)

Approximately
31mph or less (50
km/h or less)

Approximately 3 to
38 mph (5 to 60
km/h)

268

4-5. Using the driving support systems

lights are flashing.

While the Acceleration Suppression at Low Speed function is operating, if any of the follow-

ing are performed, the low speed sudden acceleration suppression function operation will

be cancelled:
• The accelerator pedal is released.
• The steering wheel is operated heavily or suddenly

■

Detection of detectable objects

Objects are detected based on their size,

shape, and movement.
Depending on the ambient brightness,

movement, posture and direction of a

detectable object, it may not be detected

and the system may not operate properly.
The system detects shapes, such as the fol-

lowing, as detectable objects.

■

Situations in which the system may

operate even though the possibility of a

collision is not high

●

In certain situations, such as the following,

the system may determine that the possi-

bility of a collision is high and operate:

• When passing a detectable object

• When changing lanes while overtaking a

detectable object

• When suddenly approaching a detect-

able object

• When approaching a detectable object

or other object on the roadside, such as

guardrails, utility poles, trees, walls, etc.

• When there is a detectable object or

other object by the roadside at the

entrance of a curve

• When there are patterns or a painting

ahead of the vehicle that may be mistaken

for a detectable object

• When passing a detectable object that is

changing lanes or turning left/right

• When passing a detectable object which

is stopped to make a left/right turn

• When a detectable object stops immedi-

ately before entering the path of the vehi-

cle

Detectable objects

Vehicle speed

Relative speed between your
vehicle and object

Preceding vehicles, stopped
vehicles, Pedestrians, Bicy-
cles, Wall

Approximately 0 to 9 mph
(0 to 15 km/h)

269

4-5. Using the driving support systems

Driving

• When passing through a location with a

structure above the road (traffic sign, bill-

board, etc.)

• When approaching an electric toll gate

barrier, parking lot barrier, or other bar-

rier that opens and closes

• When turning left/right and an oncoming

vehicle, oncoming motorcycle, pedes-

trian or bicycle crosses in front of the

vehicle

• When attempting to turn left/right in front

of an oncoming vehicle, oncoming

motorcycle, pedestrian or bicycle

• When turning left/right and an oncoming

vehicle, oncoming motorcycle, pedes-

trian or bicycle stops or changes course

immediately before entering the path of

the vehicle

• When turning left/right and an oncoming

vehicle turns left/right in front of the vehi-

cle

• When the steering wheel is operated

toward the path of an oncoming vehicle

• When there is an object moving above or

under the road

■

Situations in which the system may not

operate properly

●

In certain situations, such as the following,

a detectable object may not be detected

by the front sensors, and the system may

not operate properly:

• When a detectable object is approaching

your vehicle

• When your vehicle or a detectable object

is wandering

• When a detectable object makes an

abrupt maneuver (such as sudden swerv-

ing, acceleration or deceleration)

• When suddenly approaching a detect-

able object

• When the detectable object is near a

wall, fence, guardrail, manhole cover,

steel plate on the road surface, or

another vehicle

• When there is a structure above a detect-

able object

• When part of a detectable object is hid-

den by another object (large luggage,

umbrella, guardrail, etc.)

• When multiple detectable objects are

overlapping

• When a bright light, such as the sun, is

reflecting off of a detectable object

• When a detectable object is white and

looks extremely bright

• When the color or brightness of a detect-

able object causes it to blend in with its

surroundings

• When a detectable object cuts in front of

or suddenly emerges in front of your

vehicle

• When approaching a vehicle which is

diagonal

• If a bicycle is a child sized bicycle, is car-

rying a large load, is carrying an extra

passenger, is carrying a forward leaning

rider, or has an unusual shape (bicycles

equipped with a child seat, tandem bicy-

cles, etc.)

• If a pedestrian or bicycle is shorter than

approximately 3.2 ft. (1 m) or taller than

approximately 6.5 ft. (2 m).

• When the silhouette of a pedestrian or

bicycle is unclear (such as when they are

wearing a raincoat, long skirt, etc.)

• When a pedestrian is bending forward or

squatting

• When a pedestrian or bicycle is moving

at high speed

270

4-5. Using the driving support systems

• When a pedestrian is pushing a stroller,

wheelchair, bicycle or other vehicle

• When a detectable object blends in with

the surrounding area, such as when it is

dim (at dawn or dusk) or dark (at night or

in a tunnel)

• When the vehicle has not been driven for

a certain amount of time after the hybrid

system was started

• While turning left/right or a few seconds

after turning left/right

• While driving around a curve and a few

seconds after driving around a curve

• When turning left/right and an oncoming

vehicle is driving in a lane 3 or more lanes

from the vehicle

• When turning left/right and the direction

of the vehicle differs greatly from the

direction traffic flows in the oncoming

lane

• When turning left/right, a pedestrian or

bicycle behind the vehicle comes in front

of it as if it overtakes the vehicle

• When at an intersection, the approaching

crossing vehicle is long in overall length,

such as a large truck, towing trailer, etc.

●

In addition to the preceding, in certain sit-

uations, such as the following, the emer-

gency steering assist may not operate

properly:

• When a detectable object is too close to

the vehicle

• When there is insufficient space to per-

form evasive steering maneuvers or an

obstruction exists in the evasion direction

• When there is an oncoming vehicle

●

In addition to the preceding, in certain sit-

uations, such as the following, walls may

not be detected as a target object and the

Acceleration Suppression at Low Speed

function may not operate properly:

• When scenery behind the wall is visible,

such as a glass door, grid fence, etc.

• When the wall is slanted or low

• When the wall is narrow, such as a pole,

etc.

• When the wall is made of plants, such as a

hedge, etc.

• When the road, etc. is reflected on the

wall

• When the vehicle is approaching the wall

at an angle



The pre-collision system can be
enabled/disabled through a custom-
ize setting. (



P.590)

The system is enabled each time the power
switch is turned to ON.



When the system is disabled, the
PCS warning light will illuminate
and a message will be displayed on
the multi-information display.



The pre-collision setting can be
changed on the customize settings.
(



P.590)



Vehicles with active steering func-
tion: When the pre-collision warn-
ing timing is changed, the
emergency steering assist timing
will also be changed. When “Later”
is selected, the emergency steering
assist (excluding the active steering
function) will not operate in most
cases.

Changing the pre-collision set-
ting

271

4-5. Using the driving support systems

Driving



Vehicles with a driver monitor cam-
era: When the system determines
that the driver is not facing forward,
the pre-collision warning and emer-
gency steering assist will operate at
the “Earlier” timing, regardless of
the user setting.



When the dynamic radar cruise
control is operating, the pre-colli-
sion warning will operate at the
“Earlier” timing, regardless of the
user setting.



Vehicles with Traffic Jam Assist:
When the Traffic Jam Assist is oper-
ating, the pre-collision warning will
operate at the “Earlier” timing,
regardless of the user setting.



When driving on a road with clear
lane lines with the dynamic radar
cruise control operating, lane lines
and preceding and surrounding
vehicles are detected using the front
camera and radar sensor, and the
steering wheel is operated to main-
tain the vehicle’s lane position.

Use the this function only on highways and
expressways.
If the dynamic radar cruise control is not
operating, the function will not operate.
In situations where the lane lines are diffi-
cult to see or are not visible, such as when
in a traffic jam, support will be provided
using the path of preceding and surround-
ing vehicles.
If the system determines that the steering
wheel has not been operated for a certain
amount of time or the steering wheel is not
being firmly gripped, the driver will be
alerted and this function will be temporarily
canceled.
If the steering wheel is firmly gripped, the
function will begin operating again.

LTA (Lane Tracing Assist)

LTA functions

272

4-5. Using the driving support systems



When the function is operating, if
the vehicle is likely to depart from its
lane, the driver will be alerted via a
display and buzzer.

When the buzzer sounds, check the area
around the vehicle and carefully operate
the steering wheel to move the vehicle
back to the center of the lane.

■

Operating conditions of function

This function is operable when all of the fol-

lowing conditions are met:

●

The LTA system detects lane lines or the

path of preceding or surrounding vehi-

WARNING

■

Before using the LTA system

●

Do not overly rely on the LTA system.

The LTA system is not a system which

provides automated assistance in driv-

ing and it is not a system which reduces

the amount of attention necessary for

safe driving. The driver is solely

responsible for paying attention to

their surroundings and operating the

steering wheel as necessary to ensure

safety. Also, the driver is responsible

for taking adequate breaks when

fatigued, such as when driving for a

long time.

●

Failure to perform appropriate driving

operations and pay careful attention

may lead to an accident.

●

When not using the LTA system, turn it

off using the LTA switch.

273

4-5. Using the driving support systems

Driving

cles.

●

The dynamic radar cruise control is oper-

ating.

●

The lane width is approximately 10 to 13

ft. (3 to 4 m).

●

The turn signal lever is not being oper-

ated.

●

The vehicle is not being driven around a

sharp curve.

●

The vehicle is not accelerating or decel-

erating more than a certain amount.

●

The steering wheel is not being turned

with a large force.

●

The hands off steering wheel warning

(



P.273) is not operating.

●

The vehicle is being driven in the center

of a lane.

■

Temporary cancelation of functions

●

When the operating conditions are no

longer met, a function may be temporar-

ily canceled. However, when the opera-

tion conditions are met again, operation

of the function will automatically be

restored. (



P.272)

●

If the operating conditions of a function

are no longer met while the function is

operating, a buzzer may sound to indi-

cate that the function has been temporar-

ily canceled.

●

The steering assist operation of the func-

tion can be overridden by the steering

wheel operation of the driver.

■

Lane departure warning function when

the LTA is operating

●

Even if the LDA warning method is

changed to vibration of the steering

wheel, if the vehicle deviates from the

lane while the LTA is operating, the warn-

ing buzzer will sound to alert the driver.

●

If steering wheel operation equivalent to

that necessary for a lane change is

detected, the system will determine the

vehicle is not deviating from the lane and

the warning will not operate.

■

Hands off steering wheel warning oper-

ation

●

When the system determines the driver is

not holding the steering wheel, a mes-

sage urging the driver to grip the steering

wheel and the icon shown in the illustra-

tion will be displayed on the multi-infor-

mation display to warn the driver. If the

system detects that the steering wheel is

held, the warning will be canceled. When

using the system, make sure to grip the

steering wheel firmly, regardless of

whether the warning is operating or not.

●

If no operations are detected for a certain

amount of time, the warning will operate

and the function will be temporarily can-

celed. This warning may also operate if

the driver only operates steering wheel a

small amount continuously.

■

Situations in which the hands off steer-

ing wheel warning may not operate

properly

●

Depending on the condition of the vehi-

cle,handle control condition and road

surface, the warning function may not

operate.

●

Vehicles with LCA: In the following situa-

tions, the system may not be able to

detect when the driver’s hands are off the

steering wheel.

• When a steering wheel cover is installed

• When the driver is wearing gloves

• When foreign matter is attached to the

steering wheel

• When the driver is gripping the wood

trim, seam of the leather, spokes, or other

part of the steering wheel that does not

have sensors

●

Vehicles with LCA: In the following situa-

tions, the hands off steering wheel warn-

ing may not operate and the LTA function

may continue operating even though the

driver’s hands are off the steering wheel:

• When something other than a hand is

contacting the steering wheel

• When a wide object or arms are held

274

4-5. Using the driving support systems

across the steering wheel

The LTA will change between
ON/OFF each time the LTA switch is
pressed.

When the LTA is ON, the LTA indicator will
illuminate.



Vehicles without a head-updisplay



Vehicles with a head-up display

Enabling/disabling the system

WARNING

■

Situations in which the functions may

not operate properly

In the following situations, the functions

may not operate properly and the vehicle

may depart from its lane. Do not overly

rely on these functions. The driver is

solely responsible for paying attention to

their surroundings and operating the

steering wheel as necessary to ensure

safety.

●

When a preceding or surrounding

vehicle changes lanes (Your vehicle

may follow the preceding or surround-

ing vehicle and also change lanes)

●

When a preceding or surrounding

vehicle is swaying (Your vehicle may

sway accordingly and depart from the

lane)

●

When a preceding or surrounding

vehicle departs from a lane (Your vehi-

cle may follow the preceding or sur-

rounding vehicle and also depart from

the lane)

●

When a preceding or surrounding

vehicle is being driven extremely close

to the left/right lane line (Your vehicle

may follow the preceding or surround-

ing vehicle accordingly and depart

from the lane)

●

When there are moving objects or

structures in the surrounding area

(Depending on the position of the

moving object or structure relative to

your vehicle, your vehicle may sway)

●

When the vehicle is struck by a cross-

wind or the turbulence of other nearby

vehicles

●

Situations in which the sensors may not

operate properly:



P.257

●

Situations in which the lane may not be

detected:



P.258

●

When it is necessary to disable the sys-

tem:



P.252

276

4-5. Using the driving support systems

: If equipped

This function is linked to the LTA and
provides assistance in performing lane
changes through steering wheel oper-
ations.

Use the this function only on highways and
expressways.
The steering assist operation can be over-
ridden by the steering wheel operation of
the driver.
The lane change assist function is not
designed to operate when changing lanes
at a junction.

■

Operating conditions of function

This function is operable when all of the fol-

lowing conditions are met:

●

The LTA is operating.

●

The lane change assist function is

enabled by a customize setting.

●

The vehicle speed is between approxi-

mately 55 and 85 mph (90 and 140

km/h).

●

The system detects a broken white line on

the side which the lane change is to be

performed.

●

A vehicle is not detected in the lane

toward which the turn signal is operated.

●

The steering wheel is not being turned

with a large force.

●

The hands off steering wheel warning

(



P.273) is not operating.

■

Cancelation of functions

In the following situations, operation of the

LCA may be canceled with the display and

buzzer:

LCA (Lane Change Assist)

LCA functions

WARNING

■

Before using the LCA system

●

Do not overly rely on the LCA system.

The LCA system is not a system which
provides automated assistance in driving
and it is not a system which reduces the
need for checking an adjacent lane for
other vehicles, approaching vehicles, etc.
when changing lanes. The driver is solely
responsible for paying attention to their
surroundings and operating the steering
wheel as necessary to ensure safety.
Also, do not use the LCA to change
lanes into which a lane change should
not be performed (oncoming lanes, road
shoulders, etc.).

●

Failure to perform appropriate driving

operations and pay careful attention

may lead to an accident.

277

4-5. Using the driving support systems

Driving

●

When the operating conditions

(



P.276) are no longer met

●

When the system can no longer detect

lane lines

●

When the turn signal lever is operated to

the second position (



P.277)

●

When the turn signal lever is operated in

the opposite direction of the lane change

●

When the system detects operation of

the steering wheel, brake pedal or accel-

erator pedal by the driver.

If the system detects that a vehicle is quickly

approaching in the lane toward which the

turn signal is operated a buzzer will sound

and a message will be displayed to alert the

driver. At the same time the steering wheel

may be slightly operated to help keep the

vehicle away from the approaching vehicle.

■

Hands off steering wheel warning oper-

ation

When the system determines the driver is

not holding the steering wheel, a message

urging the driver to grip the steering wheel

and the icon shown in the illustration will be

displayed on the multi-information display

to warn the driver. If the system detects that

the steering wheel is held, the warning will

be canceled. When using the system, make

sure to grip the steering wheel firmly,

regardless of whether the warning is oper-

ating or not.

■

Situations in which the hands off steer-

ing wheel warning may not operate

properly

●

Depending on the condition of the vehi-

cle, handle control condition and road

surface, the warning function may not

operate.

●

In the following situations, the system may

not be able to detect when the driver’s

hands are off the steering wheel.

• When a steering wheel cover is installed

• When the driver is wearing gloves

• When foreign matter is attached to the

steering wheel

• When the driver is gripping the wood

trim, seam of the leather, spokes, or other

part of the steering wheel that does not

have sensors

●

In the following situations, the hands off

steering wheel warning may not operate

and the LCA function may continue

operating even though the driver’s hands

are off the steering wheel:

• When something other than a hand is

contacting the steering wheel

• When a wide object or arms are held

across the steering wheel

If the turn signal lever is held in the first
position, the lane change direction will
be displayed and the function will oper-
ate.

To change lanes by holding the turn signal
lever in the first position without using the
LCA, turn the customize setting of the
LCA off.

Operating the LCA

278

4-5. Using the driving support systems

First position: LCA is operational

Second position: LCA is not opera-
tional

LCA can be enabled/disabled through
a customize setting. (



P.590)

The operating state of the LCA system is indicated.

WARNING

■

Situations in which the LCA should

not be used

●

When driving on a one lane road

●

When there is no broken white line

between the current lane and the lane

to be changed to

Enabling/disabling the system

Displays and system operation

LCA display

Steering icon

Condition

Blue arrow and white line

Green

LCA is operating

Grey

Approaching vehicle detected while LCA is
operating

Not displayed

Grey

Lane line no longer detected while LCA is
operating

279

4-5. Using the driving support systems

Driving

The LDA system warns the driver if the
vehicle may deviate from the current
lane or course

, and also can slightly

operate the steering wheel to help
avoid deviation from the lane or
course

The front camera is used to detect lane
lines or a course

: Boundary between the asphalt and

grass, soil, etc., or structures, such as a
curb, guardrail, etc.

■

Lane departure alert function

When the system determines that the
vehicle might depart from its lane or
course

, a warning is displayed on a

display, and either a warning buzzer
will sound or the steering wheel will
vibrate to alert the driver.

Check the area around your vehicle and
carefully operate the steering wheel to
move the vehicle back to the center of the
lane or course*.
If the system determines that the vehicle
may collide with a vehicle in an adjacent
lane, the lane departure alert will operate
even if the turn signals are operating.

: Boundary between the asphalt and

grass, soil, etc., or structures, such as a
curb, guardrail, etc.

■

Lane departure prevention func-
tion

If the system determines that the vehi-
cle is likely to depart from its lane or
course

, it provides assistance through

steering wheel operations to help
avoid deviation from the lane or
course

If the system determines that the steering
wheel has not been operated for a certain
amount of time or the steering wheel is not
being firmly gripped, a warning message
may be displayed and a warning buzzer
may sound to alert the driver.
If the system determines that the vehicle
may collide with a vehicle in an adjacent
lane, the lane departure prevention func-
tion will operate even if the turn signals are
operating.

: Boundary between the asphalt and

grass, soil, etc., or structures, such as a
curb, guardrail, etc.

LDA (Lane Departure Alert)

Basic functions

280

4-5. Using the driving support systems

■

Break suggestion function

If the vehicle is swaying, a message will
be displayed and a buzzer will sound to
urge the driver to take a break.

■

Operating conditions of each function

●

Lane departure alert/prevention function

This function is operable when all of the fol-

lowing conditions are met:

• The vehicle speed is approximately 30

mph (50 km/h) or more.

Operation may be possible when the vehi-
cle speed is approximately 25 mph (40
km/h) or more if vehicles, motorcycles,
bicycles, or pedestrians are detected near
the lane.
• The system recognizes a lane or course

(When recognized on only one side, the

system will operate only for the recog-

nized side.)

• The lane width is approximately 9.8 ft. (3

m) or more.

• The turn signal lever is not being oper-

ated.

(Except when a vehicle is detected in the
direction that the turn signal lever is oper-
ated.)
• The vehicle is not being driven around a

sharp curve.

• The vehicle is not accelerating or decel-

erating more than a certain amount.

• The steering wheel is not being turned

sufficiently to perform a lane change.

WARNING

■

Before using the LDA system

●

Do not overly rely on the LDA system.

The LDA system is a system which pro-

vides automated assistance in driving.

However, as it is not a system which

reduces the amount of attention nec-

essary for safe driving. The driver is

solely responsible for paying attention

to their surroundings and operating

the steering wheel as necessary to

ensure safety. Also, the driver is

responsible for taking adequate

breaks when fatigued, such as when

driving for a long time.

●

Failure to perform appropriate driving

operations and pay careful attention

may lead to an accident.

Lexus RX350h (2023 year). Manual in english - page 8