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Lexus UX250h (2023 year). Manual in english - page 11

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

ivi

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

ivi

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

ivi

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

192

4-3. Operating the lights and wipers

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 wiper on longer than

necessary when the hybrid system is off.

193

4-4. Refueling

ivi

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

ivi

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.

A
B

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

ivi

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-

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

ivi

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

ivi

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.

Content .. 9 10 11 12 ..