Lexus UX250H (2024 year). Manual in english

184

4-3. Operating the lights and wipers

out its headlights turned on is detected.

●

House lights, street lights, traffic signals,

and illuminated billboards or signs and

other reflective objects may cause the

high beams to change to the low beams,

or the low beams to remain on.

●

The following factors may affect the

amount of time taken for the high beams

to turn on or off:

• The brightness of the headlights, fog

lights, and tail lights of vehicles ahead

• The movement and direction of vehicles

ahead

• When a vehicle ahead only has opera-

tional lights on one side

• When a vehicle ahead is a two-wheeled

vehicle

• The condition of the road (gradient,

curve, condition of the road surface, etc.)

• The number of passengers and amount of

luggage in the vehicle

●

The high beams may turn on or off unex-

pectedly.

●

Bicycles or similar vehicles may not be

detected.

●

In the following situations the system may

not be able to correctly detect the sur-

rounding brightness level. This may cause

the low beams to remain on or the high

beams to flash or dazzle pedestrians or

vehicles ahead. In such a case, it is neces-

sary to manually switch between the high

and low beams.

• When driving in inclement weather

(heavy rain, snow, fog, sandstorms, etc.)

• When the windshield is obscured by fog,

mist, ice, dirt, etc.

• When the windshield is cracked or dam-

aged

• When the front camera is deformed or

dirty

• When the temperature of the front cam-

era is extremely high

• When the surrounding brightness level is

equal to that of headlights, tail lights or

fog lights

• When headlights or tail lights of vehicles

ahead are turned off, dirty, changing

color, or not aimed properly

• When the vehicle is hit by water, snow,

dust, etc. from a preceding vehicle

• When driving through an area of inter-

mittently changing brightness and dark-

ness

• When frequently and repeatedly driving

ascending/descending roads, or roads

with rough, bumpy or uneven surfaces

(such as stone-paved roads, gravel

roads, etc.)

• When frequently and repeatedly taking

curves or driving on a winding road

• When there is a highly reflective object

ahead of the vehicle, such as a sign or

mirror

• When the back of a preceding vehicle is

highly reflective, such as a container on a

truck

• When the vehicle’s headlights are dam-

aged or dirty, or are not aimed properly

• When the vehicle is listing or tilting due to

a flat tire, a trailer being towed, etc.

• When the headlights are changed

between the high beams and low beams

repeatedly in an abnormal manner

• When the driver believes that the high

beams may be flashing or dazzling

pedestrians or other drivers

■

Temporarily lowering sensor sensitivity

The sensitivity of the sensor can be tempo-

rarily lowered.

Turn the power switch off while the fol-

lowing conditions are met.

●

The headlight switch is in

position.

●

The headlight switch lever is in the origi-

nal position.

●

Automatic High Beam switch is on.

Turn the power switch to ON.

Within 60 seconds after step

, repeat

pushing the headlight switch lever to

the high beam position then pulling it to

the original position quickly 10 times,

then leave the lever in the original posi-

tion.

If the sensitivity is changed, the Auto-

matic High Beam indicator is turn on

and off 3 times.

185

4-3. Operating the lights and wipers

Driving

■

Switching to the high beams

Push the lever away from you.

The Automatic High Beam indicator will
turn off and the high beam indicator will
turn on.
Pull the lever to its original position to acti-
vate the Automatic High Beam system
again.

■

Switching to the low beams

Press the Automatic High Beam
switch.

The Automatic High Beam indicator will
turn off.
Press the switch to activate the Automatic
High Beam system again.

■

Temporarily switching to the low
beams

Pull the lever toward you and then

return it to its original position.

The high beams are on while the lever is
pulled toward you, however, after the lever
is returned to its original position, the low
beams remain on for a certain amount of
time. Afterwards, the Automatic High
Beam will be activated again.

■

Temporarily switching to the low beams

It is recommended to switch to the low

beams when the high beam may cause

problems or distress to other drivers or

pedestrians nearby.

Turning the high beams on/off
manually

186

4-3. Operating the lights and wipers

: If equipped

Turns the fog

lights off

Turns the fog lights on

: For the U.S.A.

: For Canada

■

Fog lights can be used when

The headlights are on in low beam.

Fog light switch

When in difficult driving conditions,
such as in rain and fog, turn on the
fog lights to secure front visibility.

Turning on the fog light

NOTICE

■

To prevent 12-volt battery discharge

Do not leave the lights on longer than

necessary when the hybrid system is off.

187

4-3. Operating the lights and wipers

Driving

Operating the

lever operates

the wipers or washer as follows:



Intermittent windshield wipers with
interval adjuster

Off

Intermittent

operation

Low speed oper-

ation

High speed oper-

ation

Temporary oper-

ation

: For the U.S.A.

: For Canada

Wiper intervals can be adjusted when
intermittent operation is selected.

Increases the intermittent wind-
shield wiper frequency

Decreases the intermittent wind-
shield wiper frequency

Washer/wiper dual opera-

tion

Pulling the lever operates the wipers and
washer.
The wipers will automatically operate a
couple of times after the washer squirts.

Windshield wipers and
washer

Operating the lever can change
wiper operation to automatic/man-
ual or squirt washer fluid.

NOTICE

■

When the windshield is dry

Do not use the wipers, as they may dam-

age the windshield.

Operating the wiper lever

188

4-3. Operating the lights and wipers

Vehicles with headlight cleaners:
When the power switch is in ON and the
headlights are on, if the lever is pulled, the
headlight cleaners will operate once. After
this, the headlight cleaners will operate
every 5th time the lever is pulled.



Rain-sensing windshield wipers

When AUTO is selected, the wipers
will operate automatically when the
sensor detects falling rain. The system
automatically adjusts wiper timing in
accordance with rain volume and vehi-
cle speed.

Off

Rain-sensing operation

Low speed oper-

ation

High speed oper-

ation

Temporary oper-

ation

: For the U.S.A.

: For Canada

When AUTO is selected, the sensor
sensitivity can be adjusted by turning
the switch ring.

Increases the sensitivity

Decreases the sensitivity

Washer/wiper dual opera-

tion

Pulling the lever operates the wipers and
washer.
The wipers will automatically operate a
couple of times after the washer squirts.
(After operating several times, the wipers
operate once more time after a short delay
to prevent dripping. However, the dripping
prevention does not operate while the
vehicle is moving.)
Vehicles with headlight cleaners: When
the power switch is in ON and the head-
lights are on, if the lever is pulled, the head-
light cleaners will operate once. After this,
the headlight cleaners will operate every

189

4-3. Operating the lights and wipers

Driving

5th time the lever is pulled.

■

The windshield wipers and washer can

be operated when

The power switch is in ON.

■

Effects of vehicle speed on wiper opera-

tion (vehicles with rain-sensing wind-

shield wipers)

Vehicle speed affects the Intermittent wiper

interval.

■

Raindrop sensor (vehicles with rain-

sensing windshield wipers)

●

The raindrop sensor judges the amount

of raindrops.

An optical sensor is adopted. It may not

operate properly when sunlight from the

rising or setting of the sun intermittently

strikes the windshield, or if bugs, etc. are

present on the windshield.

●

If the wiper switch is turned to the AUTO

position while the power switch is in ON,

the wipers will operate once to show that

AUTO mode is activated.

●

If the temperature of the raindrop sensor

is 194°F (90°C) or higher, or 5°F (-

15°C) or lower, automatic operation may

not occur. In this case, operate the wipers

in any mode other than AUTO mode.

■

If no windshield washer fluid sprays

Check that the washer nozzles are not

blocked, if there is washer fluid in the

washer fluid tank.

When the windshield wipers are not
being used, they retract to below the
hood. To enable the windshield wipers
to be lifted when parking in cold condi-
tions or when replacing a windshield
wiper insert, change the rest position of

WARNING

■

Caution regarding the use of wind-

shield wipers in AUTO mode (vehi-

cles with rain-sensing windshield

wipers)

The windshield wipers may operate

unexpectedly if the sensor is touched or

the windshield is subject to vibration in

AUTO mode. Take care that your fin-

gers, etc. do not become caught in the

windshield wipers.

■

Caution regarding the use of washer

fluid

When it is cold, do not use the washer

fluid until the windshield becomes warm.

The fluid may freeze on the windshield

and cause low visibility. This may lead to

an accident, resulting in death or serious

injury.

NOTICE

■

When the washer fluid tank is empty

Do not operate the switch continually as

the washer fluid pump may overheat.

■

When a nozzle becomes blocked

In this case, contact your Lexus dealer.

Do not try to clear it with a pin or other

object. The nozzle will be damaged.

■

To prevent 12-volt battery discharge

Do not leave the wipers on longer than

necessary when the hybrid system is off.

Changing the windshield wiper
rest position/Lifting the wind-
shield wipers

190

4-3. Operating the lights and wipers

the windshield wipers to the service
position using the wiper lever.

■

Raising the wipers to the service
position

Within approximately 45 seconds of
turning the power switch off, move the
wiper lever to the

(U.S.A.) or

(Canada) position and hold it for
approximately 2 seconds or more.

The wipers will move to the service posi-
tion.

■

Lifting the windshield wipers

While holding the hook portion

the wiper arm, lift the windshield wiper
from the windshield.

■

Lowering the windshield wipers to the

retracted position

With the windshield wipers placed on the

windshield, turn the power switch to ON

and then move the wiper lever to an operat-

ing position. When the wiper switch is

turned off, the windshield wipers will stop at

the retracted position. Even if the wipers

deviate while the power switch is OFF, the

wipers will return to the normal position.

NOTICE

■

When lifting the windshield wipers

●

Do not lift the windshield wipers when

they are in the retracted position

below the hood. Otherwise, they may

contact the hood, possibly resulting in

damage to a windshield wiper and/or

the hood.

●

Do not lift a windshield wiper by the

wiper blade. Otherwise, the wiper

blade may be deformed.

●

Do not operate the wiper lever when

the windshield wipers are lifted. Oth-

erwise, the windshield wipers may

contact the hood, possibly resulting in

damage to the windshield wipers

and/or hood.

191

4-3. Operating the lights and wipers

Driving

Operating the

switch operates

the rear wiper as follows:

Off

Intermittent

operation

Normal operation

: For the U.S.A.

: For Canada

Washer/wiper dual opera-

tion

Pushing the lever operates the wiper and
washer.
The wiper will automatically operate a cou-
ple of times after the washer squirts.

■

The rear window wiper and washer can

be operated when

The power switch is in ON.

■

If no windshield washer fluid sprays

Check that the washer nozzles are not

blocked, if there is washer fluid in the

washer fluid tank.

■

Reverse-linked rear window wiper

function

When the shift lever is shifted to R when the

front wipers are operating, the rear window

wiper will operate once.

■

Back door opening linked rear window

wiper stop function

When the rear window wiper is operating, if

the back door is opened while the vehicle is

stopped, operation of the rear window

wiper will be stopped to prevent anyone

near the vehicle from being sprayed by

water from the wiper. When the back door
is closed, wiper operation will resume.

: The setting must be customized at your

Lexus dealer.

■

Customization

Setting of the reverse-linked function can

be changed. (Customizable fea-

tures:



P.432

Rear window wiper and
washer

The rear window wiper and washer
can be used by operating the lever.

NOTICE

■

When the rear window is dry

Do not use the wiper, as it may damage

the rear window.

Operating the wiper lever

193

4-4. Refueling

Driving

4-4.Refueling



Turn the power switch off and
ensure that all the doors and win-
dows are closed.



Confirm the type of fuel.

■

Fuel types



P.415

■

Fuel tank opening for unleaded gasoline

To help prevent incorrect fueling, your vehi-

cle has a fuel tank opening that only accom-

modates the special nozzle on unleaded

fuel pumps.

Opening the fuel tank cap

The fuel tank of your vehicle has a
special structure, which requires a
reduction in fuel tank pressure
before refueling. After the opener
switch has been pressed, it will take
several seconds until the vehicle is
ready for refueling.

Before refueling the vehicle

WARNING

■

When refueling the vehicle

Observe the following precautions while

refueling the vehicle. Failure to do so

may result in death or serious injury.

●

After exiting the vehicle and before

opening the fuel door, touch an

unpainted metal surface to discharge

any static electricity. It is important to

discharge static electricity before refu-

eling because sparks resulting from

static electricity can cause fuel vapors

to ignite while refueling.

●

Always hold the grips on the fuel tank

cap and turn it slowly to remove it.

A whooshing sound may be heard

when the fuel tank cap is loosened.

Wait until the sound cannot be heard

before fully removing the cap. In hot

weather, pressurized fuel may spray

out of the filler neck and cause injury.

●

Do not allow anyone that has not dis-

charged static electricity from their

body to come close to an open fuel

tank.

●

Do not inhale vaporized fuel.

Fuel contains substances that are

harmful if inhaled.

●

Do not smoke while refueling the vehi-

cle.

Doing so may cause the fuel to ignite

and cause a fire.

●

Do not return to the vehicle or touch

any person or object that is statically

charged. This may cause static elec-

tricity to build up, resulting in a possi-

ble ignition hazard.

■

When refueling

Observe the following precautions to

prevent fuel overflowing from the fuel

tank:

●

Securely insert the fuel nozzle into the

fuel filler neck.

●

Stop filling the tank after the fuel noz-

zle automatically clicks off.

●

Do not top off the fuel tank.

NOTICE

■

Refueling

●

Finish refueling within 30 minutes. If

more than 30 minutes passes, the

internal valve closes. In this condition,

fuel may overflow during the refueling

process. Press the fuel filler door

opener switch again.

194

4-4. Refueling

Press the opener switch.

The fuel filler door will open within about

10 seconds of the switch being pressed.

Before refueling is possible, a message will

be shown on the multi-information display

in the instrument cluster to indicate the

progress of the fuel filler door opener.

Turn the fuel tank cap slowly and
remove it, then put it into the holder
on the fuel filler door.

■

When the fuel filler door cannot be

opened



P.395

After refueling, turn the fuel tank cap
until you hear a click. Once the cap is
released, it will turn slightly in the
opposite direction.

NOTICE

●

Make sure that the fuel filler door lock

is not pushed by the fuel nozzle boot,

etc. If the lock is held, the internal valve

closes and fuel may overflow. To pre-

vent it, press the fuel filler door opener

switch again.

●

Do not spill fuel during refueling.

Doing so may damage the vehicle,

such as causing the emission control

system to operate abnormally, damag-

ing fuel system components or the

vehicle’s painted surface.

Opening the fuel tank cap

Closing the fuel tank cap

WARNING

■

When replacing the fuel tank cap

Do not use anything but a genuine Lexus

fuel tank cap designed for your vehicle.

Doing so may cause a fire or other inci-

dent which may result in death or serious

injury.

195

4-5. Using the driving support systems

Driving

4-5.Using the driving support systems

■

PCS (Pre-Collision System)



P.199

■

LTA (Lane Tracing Assist)



P.209

■

AHB (Automatic High Beam)



P.183

■

RSA (Road Sign Assist)



P.218

■

Dynamic radar cruise control with
full-speed range



P.221

: If equipped

Two types of sensors, located behind
the front grille and windshield, detect
information necessary to operate the
drive assist systems.

Radar sensor

Front camera

Lexus Safety System + 2.5

The Lexus Safety System + 2.5 con-
sists of the following drive assist sys-
tems and contributes to a safe and
comfortable driving experience:

Driving assist system

WARNING

■

Lexus Safety System + 2.5

The Lexus Safety System + 2.5 is

designed to operate under the assump-

tion that the driver will drive safely, and is

designed to help reduce the impact to

the occupants and the vehicle in the case

of a collision or assist the driver in normal

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

always responsible for paying attention

to the vehicle’s surroundings and driving

safely.

Sensors

WARNING

■

To avoid malfunction of the radar sen-

sor

Observe the following precautions.
Otherwise, the radar sensor may not

operate properly, possibly leading to an

accident resulting in death or serious

injury.

196

4-5. Using the driving support systems

WARNING

●

Keep the radar sensor and the radar

sensor cover clean at all times.

Radar sensor

Radar sensor cover

If the front of the radar sensor or the front
or back of the radar sensor cover is dirty
or covered with water droplets, snow,
etc., clean it.
Clean the radar sensor and radar sensor
cover with a soft cloth to avoid damaging
them.

●

Do not attach accessories, stickers

(including transparent stickers) or

other items to the radar sensor, radar

sensor cover or surrounding area.

●

Do not subject the radar sensor or its

surrounding area to a strong impact.

If the radar sensor, front grille, or front

bumper has been subjected to a

strong impact, have the vehicle

inspected by your Lexus dealer.

●

Do not disassemble the radar sensor.

●

Do not modify or paint the radar sen-

sor or radar sensor cover.

●

In the following cases, the radar sensor

must be recalibrated. Contact your

Lexus dealer for details.

• When the radar sensor or front grille

are removed and installed, or replaced

• When the front bumper is replaced

■

To avoid malfunction of the front

camera

Observe the following precautions.
Otherwise, the front camera may not

operate properly, possibly leading to an

accident resulting in death or serious

injury.

●

Keep the windshield clean at all times.

• If the windshield is dirty or covered

with an oily film, water droplets, snow,

etc., clean the windshield.

• 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 your Lexus dealer.

●

Do not attach objects, such as stickers,

transparent stickers, etc., to the outer

side of the windshield in front of the

front camera (shaded area in the illus-

tration).

From the top of the windshield to
approximately 0.4 in. (1 cm) below
the bottom of the front camera

Approximately 7.9 in. (20 cm)
(Approximately 4.0 in. [10 cm] to the
right and left from the center of the
front camera)

197

4-5. Using the driving support systems

Driving

WARNING

●

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. (



P.276)

●

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.

After replacing the windshield, the

front camera must be recalibrated.

Contact your Lexus dealer for details.

●

Do not allow liquids to contact the

front camera.

●

Do not allow bright lights to shine into

the front camera.

●

Do not dirty or damage the front cam-

era.

When cleaning the inside of the wind-

shield, do not allow glass cleaner to

contact the lens of the front camera.

Also, do not touch the lens.

If the lens is dirty or damaged, contact

your Lexus dealer.

●

Do not subject the front camera to a

strong impact.

●

Do not change the installation position

or direction of the front camera or

remove it.

●

Do not disassemble the front camera.

●

Do not modify any components of the

vehicle around the front camera

(inside rear view mirror, etc.) or ceil-

ing.

●

Do not attach any accessories to the

hood, front grille or front bumper that

may obstruct the front camera. Con-

tact your Lexus dealer for details.

●

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 the headlights or other

lights.

198

4-5. Using the driving support systems

■

If a warning message is displayed on the multi-information display

A system may be temporarily unavailable or there may be a malfunction in the system.

●

In the following situations, perform the actions specified in the table. When the normal

operating conditions are detected, the message will disappear and the system will

become operational.

If the message does not disappear, contact your Lexus dealer.

●

In the following situations, if the situation has changed (or the vehicle has been driven for

some time) and the normal operating conditions are detected, the message will disap-

pear and the system will become operational.

If the message does not disappear, contact your Lexus dealer.

• When the temperature around the radar sensor is outside of the operational range, such

as when the vehicle is in the sun or in an extremely cold environment

• When the front camera cannot detect objects in front of the vehicle, such as when driving

in the dark, snow, or fog, or when bright lights are shining into the front camera

• Depending on the conditions in the vicinity of the vehicle, the radar may judge the sur-

rounding environment can not be properly recognized. In that case, “Pre-Collision Sys-

tem Unavailable See Owner’s Manual” is displayed.

Situation

Actions

When the area around a camera is covered
with dirt, moisture (fogged up, covered with
condensation, ice, etc.), or other foreign
matter

Using the wiper and A/C function, remove
the dirt and other attached matter.
(



P.276)

When the temperature around the front
camera is outside of the operational range,
such as when the vehicle is in the sun or in an
extremely cold environment

If the front camera is hot, such as after the
vehicle had been parked in the sun, use the
air conditioning system to decrease the tem-
perature around the front camera.
If a sunshade was used when the vehicle was
parked, depending on its type, the sunlight
reflected from the surface of the sunshade
may cause the temperature of the front cam-
era to become excessively high.

If the front camera is cold, such after the
vehicle is parked in an extremely cold envi-
ronment, use the air conditioning system to
increase the temperature around the front
camera.

The area in front of the front camera is
obstructed, such as when the hood is open
or a sticker is attached to the part of the
windshield in front of the front camera.

Close the hood, remove the sticker, etc. to
clear the obstruction.

When “Pre-Collision System Radar In Self
Calibration Unavailable See Owner’s Man-
ual” is displayed.

Check whether there is attached materials
on the radar sensor and radar sensor cover,
and if there is, remove it.

199

4-5. Using the driving support systems

Driving

The system can detect the following
(The detectable objects differs
depending on the function.):



Vehicles



Bicyclists



Pedestrians

■

Pre-collision warning

When the system determines that the
possibility of a frontal collision is high, a
buzzer will sound and a warning mes-

sage will be displayed on the multi-
information display to urge the driver
to take evasive action.

■

Pre-collision brake assist

When the system determines that the
possibility of a frontal collision is high,
the system applies greater braking
force in relation to how strongly the
brake pedal is depressed.

■

Pre-collision braking

If the system determines that the possi-
bility of a frontal 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 possi-
bility of a frontal collision is high and
that there is sufficient space for the
vehicle to be steered into within its
lane, and the driver has begun evasive
maneuver or steering, emergency
steering assist will assist the steering
movements to help enhance the vehi-
cle stability and for lane departure pre-
vention. During operation, the
indicator will illuminate in green.

PCS (Pre-Collision System)

The pre-collision system uses a
radar sensor and front camera to
detect objects (



P.199) in front of

the vehicle. When the system
determines that the possibility of a
frontal collision with an 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 deter-
mines that the possibility of a frontal
collision with an object 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.202)

Detectable objects

System functions

200

4-5. Using the driving support systems

■

Intersection right/left turn assis-
tance

If the system determines that there is a
high possibility of a collision in the fol-
lowing situations, it will assist with Pre-
collision warning and, if necessary Pre-
collision braking.
Depending on the configuration of the
intersection, it may not be possible to
support.



When you turn right/left at an inter-
section and cross the path of an
oncoming vehicle



When you turn right/left, pedestrian
is detected in the forward direction
and estimated to enter your vehi-
cle’s path (bicyclists are not
detected.)

■

Suspension control (if equipped)

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



P.261) will control the damping

force of the shock absorbers to help
maintain an appropriate vehicle pos-
ture.

WARNING

■

Limitations of the pre-collision sys-

tem

●

The driver is solely responsible for safe

driving. Always drive safely, taking

care to observe your surroundings.

Do not use the pre-collision system

instead of normal braking operations

under any circumstances. This system

will not prevent collisions or lessen col-

lision damage or injury in every situa-

tion. Do not overly rely on this system.

Failure to do so may lead to an acci-

dent, resulting in death or serious

injury.

201

4-5. Using the driving support systems

Driving

WARNING

●

Although this system is designed to

help avoid a collision or help reduce

the impact of the collision, its effective-

ness may change according to various

conditions, therefore the system may

not always be able to achieve the same

level of performance. Read the follow-

ing conditions carefully. Do not overly

rely on this system and always drive

carefully.

• Conditions under which the system

may operate even if there is no possi-

bility of a collision:



P.205

• Conditions under which the system

may not operate properly:



P.207

●

Do not attempt to test the operation of

the pre-collision system yourself.

Depending on the objects used for

testing (dummies, cardboard objects

imitating detectable objects, etc.), the

system may not operate properly, pos-

sibly leading to an accident.

■

Pre-collision braking

●

When the pre-collision braking func-

tion is operating, a large amount of

braking force will be applied.

●

If the vehicle is stopped by the opera-

tion of the pre-collision braking func-

tion, the pre-collision braking function

operation will be canceled after

approximately 2 seconds. Depress the

brake pedal 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.

●

In some situations, while the pre-colli-

sion braking function is operating,

operation of the function may be can-

celed if the accelerator pedal is

depressed strongly or the steering

wheel is turned and the system deter-

mines that the driver is taking evasive

action.

●

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 braking function.

■

Emergency steering assist

●

As emergency steering assist opera-

tion will be canceled when the system

determines that lane departure pre-

vention function has been completed.

●

Emergency steering assist may not

operate or may be cancel in the fol-

lowing cases as the system may deter-

mine the driver is taking actions.

• If the accelerator pedal is being

depressed strongly, the steering wheel

is being operated sharply, the brake

pedal is being depressed or the turn

signal lever is being operated. In this

case, the system may determine that

the driver is taking evasive action and

the emergency steering assist may not

operate.

• In some situations, while the emer-

gency steering assist is operating,

operation of the function may be can-

celed if the accelerator pedal is

depressed strongly, the steering wheel

is operated sharply or the brake pedal

is being depressed and the system

determines that the driver is taking

evasive action.

• When the emergency steering assist is

operating, if the steering wheel is held

firmly or is operated in the opposite

direction to that which the system is

generating torque, the function may

be canceled.

202

4-5. Using the driving support systems

■

Enabling/disabling the pre-colli-
sion system

The pre-collision system can be
enabled/disabled on

(



P.89) of

the multi-information display.

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

If the system is disabled, the PCS warn-
ing light will turn on and a message will
be displayed on the multi-information
display.

■

Changing the pre-collision warn-
ing timing

The pre-collision warning timing can
be changed on

(



P.89) of the

multi-information display.

The warning timing setting is retained
when the power switch is turned off. How-
ever, if the pre-collision system is disabled
and re-enabled, the operation timing will
return to the default setting (middle).

If the pre-collision warning timing is

WARNING

■

When to disable the pre-collision sys-

tem

In the following situations, disable the

system, as it may not operate properly,

possibly leading to an accident resulting

in death or serious injury:

●

When the vehicle is being towed

●

When your vehicle is towing another

vehicle

●

When transporting the vehicle via

truck, boat, train or similar means of

transportation

●

When the vehicle is raised on a lift with

the hybrid system on 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 a strong impact is applied to the

front bumper or front grille, due to an

accident or other reasons

●

If the vehicle cannot be driven in a sta-

ble manner, such as when the vehicle

has been in an accident or is malfunc-

tioning

●

When the vehicle is driven in a sporty

manner or off-road

●

When the tires are not properly

inflated

●

When the tires are very worn

●

When tires of a size other than speci-

fied are installed

●

When tire chains are installed

●

When a compact spare tire or an

emergency tire puncture repair kit is

used

●

If equipment (snow plow, etc.) that

may obstruct the radar sensor or front

camera is temporarily installed to the

vehicle

Changing settings of the pre-
collision system

203

4-5. Using the driving support systems

Driving

changed, emergency steering assist
timing will also be changed accord-
ingly.
If late is selected, emergency steering
assist would not operate in case of an
emergency.

Early

Middle

This is the default setting.

Late

■

Operational conditions for each pre-collision function

The pre-collision system is enabled and the system determines that the possibility of a fron-

tal collision with a detected object is high.
The system may not operate in the following situations:
• If a 12-volt battery terminal has been disconnected and reconnected and then the vehicle

has not been driven for a certain amount of time

• If the shift lever is in R
• When the VSC OFF indicator is illuminated (only the pre-collision warning function will

be operational)

The operation speeds and operation cancellation for each function is listed below.

●

Pre-collision warning

While the pre-collision warning function is operating, if the steering wheel is operated heav-

ily or suddenly, the pre-collision warning may be cancelled.

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding and stopped vehi-

cles

Approx. 7 to 110 mph (10 to

180 km/h)

Approx. 7 to 110 mph (10 to

180 km/h)

Oncoming vehicles

Approx. 7 to 110 mph (10 to

180 km/h)

Approx. 13 to 110 mph (20 to

180 km/h)

Bicyclists and pedestrians

Approx. 7 to 50 mph (10 to

80 km/h)

Approx. 7 to 50 mph (10 to

80 km/h)

204

4-5. Using the driving support systems

●

Pre-collision brake assist

●

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 depressed strongly.
• The steering wheel is turned sharply or abruptly.

●

Emergency steering assist

When the turn signal lights are flashing, emergency steering assist will not operate in case of

an emergency.

If any of the following occur while the emergency steering assist function is operating, it will

be canceled:
• The accelerator pedal is depressed strongly.
• The steering wheel is turned sharply or abruptly.
• The brake pedal is depressed.

●

Intersection right/left turn assistance (pre-collision warning)

When the turn signal lights are not flashing, support for turning left or right at an intersection

which targets oncoming vehicles does not work.

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding and stopped vehi-

cles

Approx. 20 to 110 mph (30

to 180 km/h)

Approx. 20 to 110 mph (30

to 180 km/h)

Bicyclists and pedestrians

Approx. 20 to 50 mph (30

to 80 km/h)

Approx. 20 to 50 mph (30

to 80 km/h)

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding and stopped vehi-

cles

Approx. 7 to 110 mph (10 to

180 km/h)

Approx. 7 to 110 mph (10 to

180 km/h)

Oncoming vehicles

Approx. 7 to 110 mph (10 to

180 km/h)

Approx. 13 to 110 mph (20 to

180 km/h)

Bicyclists and pedestrians

Approx. 7 to 50 mph (10 to

80 km/h)

Approx. 7 to 50 mph (10 to

80 km/h)

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding and stopped vehi-

cles, bicyclists and pedestri-

ans

Approx. 25 to 50 mph (40

to 80 km/h)

Approx. 25 to 50 mph (40

to 80 km/h)

205

4-5. Using the driving support systems

Driving

●

Intersection right/left turn assistance (pre-collision braking)

When the turn signal lights are not flashing, support for turning left or right at an intersection

which targets oncoming vehicles does not work.

■

Object detection function

The system detects objects based on their

size, profile, motion, etc. However, an

object may not be detected depending on

the surrounding brightness and the motion,

posture, and angle of the detected object,

preventing the system from operating

properly. (



P.207) The illustration shows

an image of detectable objects.

■

Conditions under which the system may

operate even if there is no possibility of a

collision

●

In some situations such as the following,

the system may determine that there is a

possibility of a frontal collision and oper-

ate.

• When passing a detectable object, etc.

• When changing lanes while overtaking a

detectable object, etc.

• When approaching a detectable object

in an adjacent lane or on the roadside,

such as when changing the course of

travel or driving on a winding road

• When rapidly closing on a detectable

object, etc.

• When approaching objects on the road-

side, such as detectable objects, guard-

rails, utility poles, trees, or walls

• When there is a detectable object or

other object by the roadside at the

entrance of a curve

Detectable objects

Vehicle speed

Oncoming vehicle

speed

Relative speed

between your vehi-

cle and object

Oncoming vehicles

Approx. 7 to 15 mph

(10 to 25 km/h)

Approx. 20 to 35

mph (30 to 55 km/h)

Approx. 25 to 50

mph (40 to 80

km/h)

Pedestrians

Approx. 7 to 15 mph

(10 to 25 km/h)



Approx. 7 to 15 mph

(10 to 25 km/h)

Detectable objects

Vehicle speed

Oncoming vehicle

speed

Relative speed

between your vehi-

cle and object

Oncoming vehicles

Approx. 10 to 15 mph

(15 to 25 km/h)

Approx. 20 to 28

mph (30 to 45 km/h)

Approx. 28 to 43

mph (45 to 70 km/h)

Pedestrians

Approx. 7 to 15 mph

(10 to 25 km/h)



Approx. 7 to 15 mph

(10 to 25 km/h)

206

4-5. Using the driving support systems

• When there are patterns or paint in front

of your vehicle that may be mistaken for a

detectable object

• When the front of your vehicle is hit by

water, snow, dust, etc.

• When overtaking a detectable object

that is changing lanes or making a

right/left turn

• When passing a detectable object in an

oncoming lane that is stopped to make a

right/left turn

• When a detectable object approaches

very close and then stops before entering

the path of your vehicle

• If the front of your vehicle is raised or low-

ered, such as when on an uneven or

undulating road surface

• When driving on a road surrounded by a

structure, such as in a tunnel or on an iron

bridge

• When there is a metal object (manhole

cover, steel plate, etc.), steps, or a protru-

sion in front of your vehicle

• When passing under an object (road

sign, billboard, etc.)

• When approaching an electric toll gate

barrier, parking area barrier, or other

barrier that opens and closes

• When using an automatic car wash

• When driving through or under objects

that may contact your vehicle, such as

thick grass, tree branches, or a banner

• When driving through steam or smoke

• When driving near an object that reflects

radio waves, such as a large truck or

guardrail

• 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 there are many things which can

reflect the radio waves of the radar in the

vicinity (tunnels, truss bridges, gravel

roads, snow covered road that have

tracks, etc.)

• While making a right/left turn, when an

oncoming vehicle or a crossing pedes-

trian has already exited the path of your

vehicle

• While making a right/left turn, closely in

front of an oncoming vehicle or a cross-

ing pedestrian.

• While making a right/left turn, when an

oncoming vehicle or a crossing pedes-

trian stops before entering the path of

your vehicle

• While making a right/left turn, when an

oncoming vehicle turns right/left in front

of your vehicle

207

4-5. Using the driving support systems

Driving

• While steering into the direction of

oncoming traffic

■

Situations in which the system may not

operate properly

●

In some situations such as the following,

an object may not be detected by the

radar sensor and front camera, prevent-

ing the system from operating properly:

• When a detectable object is approaching

your vehicle

• When your vehicle or a detectable object

is wobbling

• If a detectable object makes an abrupt

maneuver (such as sudden swerving,

acceleration or deceleration)

• When your vehicle approaches a detect-

able object rapidly

• When a detectable object is not directly

in front of your vehicle

• When a detectable object is near a wall,

fence, guardrail, manhole cover, vehicle,

steel plate on the road, etc.

• When a detectable object is under a

structure

• When part of a detectable object is hid-

den by an object, such as large baggage,

an umbrella, or guardrail

• When there are many things which can

reflect the radio waves of the radar in the

vicinity (tunnels, truss bridges, gravel

roads, snow covered road that have

tracks, etc.)

• When there is an effect on the radio

waves to the radar that is installed on

another vehicle

• When multiple detectable objects are

close together

• If the sun or other light is shining directly

on a detectable object

• When a detectable object is a shade of

white and looks extremely bright

• When a detectable object appears to be

nearly the same color or brightness as its

surroundings

• If a detectable object cuts or suddenly

emerges in front of your vehicle

• When the front of your vehicle is hit by

water, snow, dust, etc.

• When a very bright light ahead, such as

the sun or the headlights of oncoming

traffic, shines directly into the front cam-

era

• When approaching the side or front of a

vehicle ahead

• If a vehicle ahead is a motorcycle

• If a vehicle ahead is narrow, such as a

personal mobility vehicle

• If a preceding vehicle has a small rear

end, such as an unloaded truck

• If a preceding vehicle has a low rear end,

such as a low bed trailer

• If a vehicle ahead has extremely high

ground clearance

• If a vehicle ahead is carrying a load which

protrudes past its rear bumper

• If a vehicle ahead is irregularly shaped,

such as a tractor or side car

• If a vehicle ahead is a child sized bicycle,

a bicycle that is carrying a large load, a

208

4-5. Using the driving support systems

bicycle ridden by more than one person,

or a uniquely shaped bicycle (bicycle with

a child seat, tandem bicycle, etc.)

• If a pedestrian/or the riding height of a

bicyclist ahead is shorter than approxi-

mately 3.2 ft. (1 m) or taller than approxi-

mately 6.5 ft. (2 m)

• If a pedestrian/bicyclist is wearing over-

sized clothing (a rain coat, long skirt,

etc.), making their silhouette obscure

• If a pedestrian is bending forward or

squatting or bicyclist is bending forward

• If a pedestrian/bicyclist is moving fast

• If a pedestrian is pushing a stroller,

wheelchair, bicycle or other vehicle

• When driving in inclement weather such

as heavy rain, fog, snow or a sandstorm

• When driving through steam or smoke

• When the surrounding area is dim, such

as at dawn or dusk, or while at night or in

a tunnel, making a detectable object

appear to be nearly the same color as its

surroundings

• When driving in a place where the sur-

rounding brightness changes suddenly,

such as at the entrance or exit of a tunnel

• After the hybrid system has started the

vehicle has not been driven for a certain

amount of time

• While making a left/right turn and for a

few seconds after making a left/right turn

• While driving on a curve and for a few

seconds after driving on a curve

• If your vehicle is skidding

• If the front of the vehicle is raised or low-

ered

• If the wheels are misaligned

• If a wiper blade is blocking the front cam-

era

• The vehicle is being driven at extremely

high speeds

• When driving on a hill

• If the radar sensor or front camera is mis-

aligned

• When driving in a traffic lane separated

by more than one lane where oncoming

vehicles are driving while making a

right/left turn

• When largely out of place with the oppo-

site facing targeted oncoming vehicle

during a right/left turn

• While making a right/left turn, when a

pedestrian approaches from behind or

side of your vehicle

●

In addition to the above, in some situa-

tions, such as the following, the emer-

gency steering assist may not operate.

• When the white (yellow) lane lines are

difficult to see, such as when they are

faint, diverging/merging, or a shadow is

cast upon them

• When the lane is wider or narrower than

normal

• When there is a light and dark pattern on

the road surface, such as due to road

repairs

• When the target is too close

• When there is insufficient safe or unob-

structed space for the vehicle to be

steered into

• If oncoming vehicle is present

• If VSC function is operating

●

In some situations such as the following,

sufficient braking force or steering force

may not be obtained, preventing the sys-

tem from performing properly:

• If the braking functions cannot operate to

their full extent, such as when the brake

209

4-5. Using the driving support systems

Driving

parts are extremely cold, extremely hot,

or wet

• If the vehicle is not properly maintained

(brakes or tires are excessively worn,

improper tire inflation pressure, etc.)

• When the vehicle is being driven on a

gravel road or other slippery surface

• When the road surface has deep wheel

tracks

• When driving on a hill road

• When driving on a road that has inclines

to the left or right

■

If VSC is disabled

●

If VSC is disabled (



P.261), the pre-col-

lision brake assist and pre-collision brak-

ing functions are also disabled.

●

The PCS warning light will turn on and

“VSC Turned Off Pre-Collision Brake

System Unavailable” will be displayed on

the multi-information display.

LTA (Lane Tracing Assist)

While driving on a road with clear
white (yellow) lane lines, the LTA
system warns the driver if the vehi-
cle 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

. Also, while the

dynamic radar cruise control with
full-speed range (



P.221) is oper-

ating, this system will operate the
steering wheel to maintain the vehi-
cle’s lane position.

The LTA system recognizes white
(yellow) lane lines or a course

using the front camera. Addition-
ally, it detects preceding vehicles
using the front camera and radar.

: Boundary between asphalt and the

side of the road, such as grass, soil, or
a curb

210

4-5. Using the driving support systems

WARNING

■

Before using LTA system

●

Do not rely solely upon the LTA sys-

tem. The LTA system does not auto-

matically drive the vehicle or reduce

the amount of attention that must be

paid to the area in front of the vehicle.

The driver must always assume full

responsibility for driving safely by pay-

ing careful attention to the surround-

ing conditions and operating the

steering wheel to correct the path of

the vehicle. Also, the driver must take

adequate breaks when fatigued, such

as from driving for a long period of

time.

●

Failure to perform appropriate driving

operations and pay careful attention

may lead to an accident, resulting in

death or serious injury.

■

Situations unsuitable for LTA system

In the following situations, use the LTA

switch to turn the system off. Failure to do

so may lead to an accident, resulting in

death or serious injury.

●

Vehicle is driven on a road surface

which is slippery due to rainy weather,

fallen snow, freezing, etc.

●

Vehicle is driven on a snow-covered

road.

●

White (yellow) lines are difficult to see

due to rain, snow, fog, dust, etc.

●

Vehicle is driven in a temporary lane

or restricted lane due to construction

work.

●

Vehicle is driven in a construction

zone.

●

A spare tire, tire chains, etc. are

equipped.

●

When the tires have been excessively

worn, or when the tire inflation pres-

sure is low.

●

During emergency towing

■

Preventing LTA system malfunctions

and operations performed by mistake

●

Do not modify the headlights or place

stickers, etc. on the surface of the

lights.

●

Do not modify the suspension etc. If

the suspension etc. needs to be

replaced, contact your Lexus dealer.

●

Do not install or place anything on the

hood or grille. Also, do not install a

grille guard (bull bars, kangaroo bar,

etc.).

●

If your windshield needs repairs, con-

tact your Lexus dealer.

■

Conditions in which functions may

not operate properly

In the following situations, the functions

may not operate properly and the vehi-

cle may depart from its lane. Drive safely

by always paying careful attention to

your surroundings and operate the

steering wheel to correct the path of the

vehicle without relying solely on the func-

tions.

●

When the follow-up cruising display is

displayed (



P.214) and the preced-

ing vehicle changes lanes. (Your vehi-

cle may follow the preceding vehicle

and also change lanes.)

●

When the follow-up cruising display is

displayed (



P.214) and the preced-

ing vehicle is swaying. (Your vehicle

may sway accordingly and depart from

the lane.)

211

4-5. Using the driving support systems

Driving

WARNING

●

When the follow-up cruising display is

displayed (



P.214) and the preced-

ing vehicle departs from its lane. (Your

vehicle may follow the preceding vehi-

cle and depart from the lane.)

●

When the follow-up cruising display is

displayed (



P.214) and the preced-

ing vehicle is being driven extremely

close to the left/right lane line. (Your

vehicle may follow the preceding vehi-

cle and depart from the lane.)

●

Vehicle is being driven around a sharp

curve.

●

Objects or patterns that could be mis-

taken for white (yellow) lines are pres-

ent on the side of the road (guardrails,

reflective poles, etc.).

●

Vehicle is driven where the road

diverges, merges, etc.

●

Repair marks of asphalt, white (yellow)

lines, etc. are present due to road

repair.

●

There are shadows on the road that

run parallel with, or cover, the white

(yellow) lines.

●

The vehicle is driven in an area without

white (yellow) lines, such as in front of

a tollgate or checkpoint, or at an inter-

section, etc.

●

The white (yellow) lines are cracked,

“Botts’ dots”, “Raised pavement

marker” or stones are present.

●

The white (yellow) lines cannot be

seen or are difficult to see due to sand,

etc.

●

The vehicle is driven on a road surface

that is wet due to rain, puddles, etc.

●

The traffic lines are yellow (which may

be more difficult to recognize than

lines that are white).

●

The white (yellow) lines cross over a

curb, etc.

●

The vehicle is driven on a bright sur-

face, such as concrete.

●

If the edge of the road is not clear or

straight.

●

The vehicle is driven on a surface that

is bright due to reflected light, etc.

●

The vehicle is driven in an area where

the brightness changes suddenly, such

as at the entrances and exits of tunnels,

etc.

212

4-5. Using the driving support systems

■

Lane departure alert function

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

, a warning is displayed on the

multi-information display, and either a
warning buzzer will sound or the steer-
ing wheel will vibrate to alert the driver.

When the warning buzzer sounds or the
steering wheel vibrates, check the area
around your vehicle and carefully operate
the steering wheel to move the vehicle
back to the center of the lane.
Vehicle with BSM: When the system
determines that the vehicle might depart
from its lane and that the possibility of a
collision with an overtaking vehicle in the
adjacent lane is high, the lane departure
alert will operate even if the turn signals
are operating.

: Boundary between asphalt and the side

of the road, such as grass, soil, or a curb

WARNING

●

Light from the headlights of an oncom-

ing vehicle, the sun, etc. enters the

camera.

●

The vehicle is driven on a slope.

●

The vehicle is driven on a road which

tilts left or right, or a winding road.

●

The vehicle is driven on an unpaved or

rough road.

●

The traffic lane is excessively narrow

or wide.

●

The vehicle is extremely tilted due to

carrying heavy luggage or having

improper tire pressure.

●

The distance to the preceding vehicle

is extremely short.

●

The vehicle is moving up and down a

large amount due to road conditions

during driving (poor roads or road

seams).

●

When driving in a tunnel or at night

with the headlights off or when a head-

light is dim due to its lens being dirty or

it being misaligned.

●

The vehicle is struck by a crosswind.

●

The vehicle is affected by wind from a

vehicle driven in a nearby lane.

●

The vehicle has just changed lanes or

crossed an intersection.

●

Tires which differ by structure, manu-

facturer, brand or tread pattern are

used.

●

When tires of a size other than speci-

fied are installed.

●

Snow tires, etc. are equipped.

●

The vehicle is being driven at

extremely high speeds.

Functions included in LTA sys-
tem

214

4-5. Using the driving support systems

■

Lane centering function

This function is linked with dynamic
radar cruise control with full-speed
range and provides the required assis-
tance by operating the steering wheel
to keep the vehicle in its current lane.

When dynamic radar cruise control with
full-speed range is not operating, the lane
centering function does not operate.
In situations where the white (yellow) lane
lines are difficult to see or are not visible,
such as when in a traffic jam, this function
will operate to help follow a preceding
vehicle by monitoring the position of the
preceding vehicle.

Press the LTA switch to turn the LTA
system on.

The LTA indicator illuminates and a mes-
sage is displayed on the multi-information
display.
Press the LTA switch again to turn the LTA

system off.
When the LTA system is turned on or off,
operation of the LTA system continues in
the same condition the next time the hybrid
system is started.

LTA indicator

The illumination condition of the indicator
informs the driver of the system operation
status.
Illuminated in white:
LTA system is operating.
Illuminated in green:
Steering wheel assistance of the steering
assist function or lane centering function is
operating.
Flashing in orange:
Lane departure alert function is operating.

Operation display of steering
wheel operation support

Turning LTA system on

Indications on multi-information
display

215

4-5. Using the driving support systems

Driving

Displayed when the multi-information dis-
play is switched to the driving support sys-
tem information display.
Indicates that steering wheel assistance of
the steering assist function or lane center-
ing function is operating.
Both outer sides of the lane are displayed:
Indicates that steering wheel assist of the
lane centering function is operating.
One outer side of the lane is displayed:
Indicates that steering wheel assist of the
steering assist function is operating.
Both outer sides of the lane are flashing:
Alerts the driver that their input is neces-
sary to stay in the center of the lane (lane
centering function).

Follow-up cruising display

Displayed when the multi-information dis-
play is switched to the driving support sys-
tem information display.
Indicates that steering assist of the lane
centering function is operating by monitor-
ing the position of a preceding vehicle.
When the follow-up cruising display is dis-
played, if the preceding vehicle moves,
your vehicle may move in the same way.
Always pay careful attention to your sur-
roundings and operate the steering wheel
as necessary to correct the path of the
vehicle and ensure safety.

Lane departure alert function dis-
play

Displayed when the multi-information dis-
play is switched to the driving support sys-
tem information display.



Inside of displayed lines is white

Indicates that the system is recognizing
white (yellow) lines or a course

. When the

vehicle departs from its lane, the white line
displayed on the side the vehicle departs
from flashes orange.



Inside of displayed lines is black

Indicates that the system is not able to rec-
ognize white (yellow) lines or a course

is temporarily canceled.

: Boundary between asphalt and the side

of the road, such as grass, soil, or a curb

■

Operation conditions of each function

●

Lane departure alert function

This function operates when all of the fol-
lowing conditions are met.
• LTA is turned on.

• Vehicle speed is approximately 32 mph

(50 km/h) or more.

• System recognizes white (yellow) lane

lines or a course

. (When a white [yel-

low] line or course

is recognized on

only one side, the system will operate

Lexus UX250H (2024 year). Manual in english - page 6