Lexus LS (2023 year). Manual in english

226

4-3. Operating the lights and wipers

sensor 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 titling 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

• When the vehicle is used in an area in

which vehicles travel on the opposite side

of the road of the country for which the

vehicle was designed, for example using

a vehicle designed for right-hand traffic in

a left-hand traffic area, or vice versa

■

Switching to the high beams

Push the lever away from you.

The AHB 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.

■

Switching to the low beams

Press the Automatic High Beam
switch.

The AHB 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 period of
time. Afterwards, the Automatic High
Beam will be activated again.

Turning the high beams on/off
manually

227

4-3. Operating the lights and wipers

Driving

■

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.

Turn the headlight switch to the

position.

Turn the switch ring to the

position.

When the switch is released, it returns to

When the Multi Weather Lights system is

enabled, the Multi Weather Lights indica-

tor on the meter will illuminate.

Turn the switch ring to the

position

again to disable the system.

■

Operating conditions

The cornering lights will illuminate when the

Multi Weather Lights are enabled and both

of the following conditions are met:

●

The headlights are on

Multi Weather Lights

The Multi Weather Lights is a sys-
tem that illuminates the cornering
lights to ensure visibility when driv-
ing in inclement weather, such as
rain or fog.

Enabling/disabling the Multi
Weather Lights

228

4-3. Operating the lights and wipers

●

The vehicle speed is lower than approxi-

mately 45 km/h (28 mph).

When the vehicle speed increases to
approximately 45 km/h (28 mph) or
higher, the lights will be temporarily turned
off. The lights will turn on again when the
vehicle speed becomes lower than
approximately 35 km/h (22 mph).

■

Rear fog lights

When the Multi Weather Lights system is

enabled, the rear fog lights may also be illu-

minated. (



P.228)

■

Customization

Enabling of the Multi Weather Lights sys-

tem when the rear fog lights are enabled

can be turned on/off. (



P.540)

Turn the headlight switch to the

position.

Turn the switch ring to the

position.

When the switch is released, it returns to

When the rear fog lights are enabled, the

rear fog light indicator on the meter will

illuminate.

Turn the switch ring to the

position

again to disable the rear fog lights.

■

Illumination conditions

●

When enabled, the rear fog lights oper-

ate when the headlights are illuminated.

●

When illuminated, the rear fog lights will

remain on until the tail lights are turned

off.

Rear fog lights

When driving in inclement weather,
such as rain or fog, the rear fog
lights can be used to make your
vehicle more visible to following
vehicles.

Operating instructions

229

4-3. Operating the lights and wipers

Driving

■

Using the rear fog lights

Use the rear fog lights only when necessary.

If the rear fog lights are used when visibility

is not poor, they may impede the visibility of

drivers in following vehicles.

■

Multi Weather Lights system-linked

operation

When the rear fog lights are illuminated, the

Multi Weather Lights system may also

operate. (



P.227)

■

Customization

Enabling of the Multi Weather Lights sys-

tem when the rear fog lights are enabled

can be turned on/off. (



P.540)

Operating the

lever operates

the wipers or washer as follows. When

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 vehicle speed.

Windshield wipers and
washer

Operating the lever can switch
between automatic operation and
manual operation, or can use the
washer.

NOTICE

■

When the windshield is dry

Do not use the wipers, as they may dam-

age the windshield.

Operating the wiper lever

230

4-3. Operating the lights and wipers

Off

Rain-sensing operation

The wipers will operate automatically when
the sensor detects falling rain. The system
automatically adjusts wiper timing in
accordance with rain volume and vehicle
speed.

Low speed operation

High speed operation

Temporary operation

When

is selected, the sensor sen-

sitivity can be adjusted by turning the
switch ring.

Increases the sensitivity

Decreases the sensitivity

Windshield washer/wiper

dual operation

Pulling the lever operates the windshield
wipers and washer.
(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.)
When the power switch is in ON mode
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.

Rear camera washer opera-

tion

Pushing the lever operates the rear cam-
era washer and cleans the rear camera and
the camera for the Digital Rearview Mirror.

: Vehicles with Digital Rearview Mirror

231

4-3. Operating the lights and wipers

Driving

■

The windshield wiper and washer can be

operated when

The power switch is in ON mode.

■

Effects of vehicle speed on wiper opera-

tion

Even when the wipers are not in AUTO

mode, vehicle speed affects the time until

the drip prevention wiper sweep occurs.
With low speed windshield wiper operation

selected, wiper operation will be switched

from low speed to intermittent wiper opera-

tion only when the vehicle is stationary.

(However, when the sensor sensitivity is

adjusted to the highest level, the mode can-

not be switched.)

■

Raindrop sensor

●

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 is turned to AUTO mode

while the power switch is in ON mode,

the wipers will operate once to show that

AUTO mode is activated.

●

If the temperature of the raindrop sensor

is 85°C (185°F) or higher, or -15°C

(5°F) or lower, automatic operation may

not occur. In this case, operate the wipers

in any mode other than AUTO mode.

■

If no washer fluid sprays

Check that the washer nozzles are not

blocked if there is washer fluid in the washer

fluid reservoir.

■

Front door opening linked windshield

wiper stop function

When

is selected and the windshield

wipers are operating, if a front door is

opened while the vehicle is stopped and the

P shift position is selected, operation of the

windshield wipers will be stopped to pre-

vent anyone near the vehicle from being

sprayed by water from the wipers. When

the front door is closed, wiper operation will

resume.

■

When stopping hybrid system in an

emergency while driving

If the windshield wipers are operating when

hybrid system is stopped, the windshield

wipers will operate in high speed operation.

After the vehicle is stopped, operation will

return to normal when the power switch is

turned to ON mode, or operation will stop

when the driver’s door is opened.

■

Outside rear view mirror defogger acti-

vation linked to windshield wiper opera-

tion

The outside rear view mirror defoggers

automatically turn on when you operate the

windshield wipers.

The outside rear view mirror defoggers

automatically turn off approximately 15

minutes after the wipers stop.

For details about the outside rear view mir-

ror defoggers:



P.395

232

4-3. Operating the lights and wipers

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

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

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

WARNING

■

Caution regarding the use of wind-

shield wipers in AUTO mode

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 fingers

or anything else 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 there is no washer fluid spray

from the nozzle

Damage to the washer fluid pump may

be caused if the lever is pulled toward

you and held continually.

■

When a nozzle becomes blocked

In this case, contact any authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer.

Do not try to clear it with a pin or other

object. The nozzle will be damaged.

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

233

4-3. Operating the lights and wipers

Driving

■

Lowering the windshield wipers to the

retracted position

With the windshield wipers placed on the

windshield, turn the power switch to ON

mode and then move the wiper lever to an

operating 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.

234

4-4. Refueling

4-4.Refueling



Close all the doors and windows,
and turn the power switch off.



Confirm the type of fuel.

■

Fuel types



P.539

■

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

Perform the following steps to open
the fuel tank cap:

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

refueling 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 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 electricity to

build up, resulting in a possible 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

Do not spill fuel during refueling.

Doing so may damage the vehicle, such

as causing the emission control system to

operate abnormally or damaging fuel

system components or the vehicle’s

painted surface.

235

4-4. Refueling

Driving

Press the opener switch.

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

■

If the fuel filler door cannot be opened



P.511

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

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.

236

4-5. Using the driving support systems

4-5.Using the driving support systems

: If equipped

■

PCS (Pre-Collision System) (vehi-
cles with Lexus Safety System + A)



P.247

■

FCTA (Front Cross Traffic Alert)



P.272

■

LTA (Lane Tracing Assist) (vehicles
with Lexus Safety System + A)



P.276

■

AHS (Adaptive High-beam Sys-
tem)



P.221

■

RSA (Road Sign Assist)



P.295

■

Dynamic radar cruise control with
full-speed range



P.299

Four types of sensors, located behind
the front grille, front bumper, rear
bumper and windshield, detect infor-
mation necessary to operate the drive
assist systems.



Front

Front radar sensor
Front side radar sensors
Front camera



Rear

Rear side radar sensors (



P.313)

Lexus Safety System + A

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

Drive assist system

WARNING

■

Lexus Safety System + A

The Lexus Safety System + A is designed

to operate under the assumption 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 con-

ditions.

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

A
B
C

237

4-5. Using the driving support systems

Driving

WARNING

■

To avoid malfunction of the front

radar sensor

Observe the following precautions.

Otherwise, the radar sensor may not

operate properly, possibly leading to an

accident resulting in death or serious

injury.

●

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.

A
B

●

Do not subject the radar sensor or its

surrounding area to a strong impact.

If the radar sensor is moved even

slightly off position, the system may

malfunction and objects may not be

detected correctly.

If the radar sensor, front grille, or front

bumper has been subjected to a

strong impact, have the vehicle

inspected by any authorized Lexus

retailer or Lexus authorized repairer,

or any reliable repairer.

●

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 any

authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer 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 side

radar sensors

Observe the following precautions.

Otherwise, the radar sensor may not

operate properly, possibly leading to an

accident resulting in death or serious

injury.

238

4-5. Using the driving support systems

WARNING

●

Keep the radar sensors and their sur-

rounding areas on the front bumper

clean at all times.

If a radar sensor or its surrounding area
on the front bumper is dirty or covered
with snow, the system may not operate
and a warning message (



P.506) will

be displayed.
If this occurs, clean off the dirt or snow
and drive the vehicle for approximately
10 minutes.
If the warning message does not disap-
pear, have your vehicle inspected by any
authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer.

●

Do not attach accessories, stickers

(including transparent stickers), alumi-

num tape or other items to the radar

sensors or their surrounding area.

●

Do not subject a radar sensor or its

surrounding area on the front bumper

to a strong impact.

If a radar sensor is moved even slightly
off position, the system may malfunction
and vehicles may not be detected cor-
rectly.
In the following situations, have your
vehicle inspected by any authorized
Lexus retailer or Lexus authorized
repairer, or any reliable repairer.
• If a radar sensor or its surrounding

area is subject to a strong impact

• If the area on the front bumper around

a radar sensor is scratched or dented,

or the front bumper has become par-

tially disengaged

●

Do not disassemble the radar sensors.

●

Do not modify the radar sensors or

their surrounding area on the front

bumper.

●

In the following cases, the radar sensor

must be recalibrated. Contact any

authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer for details.

• When the radar sensor is removed and

installed, or replaced

• When the front bumper is replaced

●

Do not paint the front bumper any

color other than an official Lexus color.

■

To avoid malfunction of the front cam-

era

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.

• As some glass coating agents may

affect the detection performance of

the front camera, consult any author-

ized Lexus retailer or Lexus authorized

repairer, or any reliable repairer. when

using a glass coating agent.

• 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.

239

4-5. Using the driving support systems

Driving

WARNING

• If the inner side of the windshield

where the front camera is installed is

dirty, contact any authorized Lexus

retailer or Lexus authorized repairer,

or any reliable repairer.

●

Do not attach objects, such as stickers,

transparent stickers, and so forth, to

the outer side of the windshield in front

of the front camera (shaded area in the

illustration).

From the top of the windshield to
approximately 1 cm (0.4 in.) below
the bottom of the front camera
Approximately 36 cm (14.2 in.)
(Approximately 18 cm [7.1 in.] to the
right and left from the center of the
front camera)

●

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.395)

●

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 any authorized Lexus retailer

or Lexus authorized repairer, or any

reliable repairer for details.

●

Do not allow liquids to contact the

front camera.

●

Do not allow bright lights to shine into

the front camera.

●

Do not 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

any authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer.

●

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 ceiling.

●

Do not attach any accessories to the

hood, front grille or front bumper that

may obstruct the front camera. Con-

tact any authorized Lexus retailer or

Lexus authorized repairer, or any relia-

ble repairer 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.

240

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 any authorized Lexus retailer or Lexus author-

ized repairer, or any reliable repairer.

●

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 disappear

and the system will become operational.

If the message does not disappear, contact any authorized Lexus retailer or Lexus author-

ized repairer, or any reliable repairer.

• 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

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.395)

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 sun-
light reflected from the surface of the sun-
shade may cause the temperature of the
front camera 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.

242

4-5. Using the driving support systems

: If equipped

■

PCS (Pre-Collision System) (vehi-
cles with Lexus Safety System +)



P.260

■

LTA (Lane Tracing Assist) (vehicles
with Lexus Safety System +)



P.286

■

AHS (Adaptive High-beam Sys-
tem)



P.221

: If equipped

■

AHB (Automatic High Beam)



P.224

: If equipped

■

RSA (Road Sign Assist)



P.295

: If equipped

■

Dynamic radar cruise control with
full-speed range



P.299

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 +

The Lexus Safety System + consists
of the following drive assist systems
and contributes to a safe and com-
fortable driving experience:

Driving assist system

WARNING

■

Lexus Safety System +

The Lexus Safety System + is designed to

operate under the assumption 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 con-

ditions.

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.

A
B

243

4-5. Using the driving support systems

Driving

WARNING

Otherwise, the radar sensor may not

operate properly, possibly leading to an

accident resulting in death or serious

injury.

●

Keep the radar sensor and the radar

sensor cover clean at all times.

Radar sensor
Radar sensor cover

●

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 any authorized Lexus

retailer or Lexus authorized repairer,

or any reliable repairer.

●

Do not disassemble the radar sensor.

●

Do not modify or paint the radar sen-

sor or radar sensor cover.

A
B

●

In the following cases, the radar sensor

must be recalibrated. Contact any

authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer 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 cam-

era

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 any authorized Lexus

retailer or Lexus authorized repairer,

or any reliable repairer.

244

4-5. Using the driving support systems

WARNING

●

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 1 cm (0.4 in.) below
the bottom of the front camera
Approximately 20 cm (7.9 in.)
(Approximately 10 cm [4.0 in.] to the
right and left from the center of the
front camera)

●

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.395)

●

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 any authorized Lexus retailer

or Lexus authorized repairer, or any

reliable repairer for details.

●

Do not allow liquids to contact the

front camera.

●

Do not allow bright lights to shine into

the front camera.

●

Do not 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

any authorized Lexus retailer or Lexus

authorized repairer, or any reliable

repairer.

●

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 ceiling.

●

Do not attach any accessories to the

hood, front grille or front bumper that

may obstruct the front camera. Con-

tact any authorized Lexus retailer or

Lexus authorized repairer, or any relia-

ble repairer 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.

245

4-5. Using the driving support systems

Driving

■

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 any authorized Lexus retailer or Lexus author-

ized repairer, or any reliable repairer.

●

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 disappear

and the system will become operational.

If the message does not disappear, contact any authorized Lexus retailer or Lexus author-

ized repairer, or any reliable repairer.

• 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

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.395)

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 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.

247

4-5. Using the driving support systems

Driving

■

Pedestrian alert

When the system determines that
there is a possibility of a frontal collision
with a stationary or moving pedestrian
in front of your vehicle, a message will
be displayed on the head-up display to
warn the driver.

■

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.

PCS (Pre-Collision System)
(vehicles with Lexus Safety
System + A)

The pre-collision system uses a
front radar sensor and front camera
to detect vehicles and pedestri-
ans/bicyclists in front of your vehi-
cle and front side radar sensors to
detect vehicles approaching from
the front left or right side. When the
system determines that the possi-
bility of a frontal collision with a
vehicle or pedestrian/bicyclist 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 a vehicle or pedes-
trian/bicyclist is extremely high, the
brakes are automatically applied to
help avoid the collision or help
reduce the impact of the collision.

The pre-collision system can be disa-
bled/enabled and the warning timing
can be changed. (



P.251)

System functions

248

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.)

■

Active steering assist

If the system determines that the possi-
bility of a collision with an object, such

as a guardrail, or pedestrian is high,
even though the brakes are applied,
and that the collision may be avoidable
through steering control, the system
will steer the vehicle automatically to
help avoid the collision or help reduce
the impact of the collision.

■

Active Assist for seat belts (front
seats only)

If the system determines that the possi-
bility of a frontal collision is high, the
system will retract the seat belts. Addi-
tionally, the system may retract the seat
belts if the brakes are applied suddenly
or control of the vehicle is lost.

■

Pre-collision seatbacks (front pas-
senger’s seat / power rear seat [if
equipped])

If the system determines that the possi-
bility of a frontal collision is high, it may
move the seatbacks of the front pas-
senger’s seat and power rear seats to
the upright position automatically, if
reclined.

If a seat is being adjusted, it may not be
moved by the pre-collision seat function.

■

Suspension control

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



P.378) will control the damp-

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

■

Steering control

When the system determines that the
possibility of a frontal collision is high

249

4-5. Using the driving support systems

Driving

and the driver is operating the steering
wheel, the LDH system (



P.378) will

control the turning angle of the front
and rear wheels and effort necessary
to turn the steering wheel to help
enhance steering responsiveness.

WARNING

■

Limitations of the pre-collision system

●

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.

●

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 following conditions care-

fully. 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.254

• Conditions under which the system

may not operate properly:



P.257

●

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

canceled 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.

■

Active steering assist

●

The steering wheel may turn automati-

cally when active steering assist is

operating.

●

As active steering assist operation will

be canceled when the system deter-

mines that a collision has been

avoided, operate the steering wheel as

necessary.

250

4-5. Using the driving support systems

WARNING

●

In the following situations, the system

may determine that the driver is taking

evasive action. In this case, the active

steering assist may not operate or may

be canceled.

• If the accelerator pedal is being

depressed strongly or the steering

wheel is being operated. In this case

the system may determine that the

driver is taking evasive action and the

pre-collision braking may not operate.

• In some situations, while the active

steering assist is operating, operation

of the function may be canceled if the

accelerator pedal is depressed

strongly or the steering wheel is turned

and the system determines that the

driver is taking evasive action.

• When the active 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.

• If the brake pedal is depressed, the sys-

tem may determine that the driver is

taking evasive action and the active

steering assist operation may be

delayed.

■

Active Asssit for seat belts

If the Active Assist has operated and the

seat belts are locked in a retracted posi-

tion, immediately stop the vehicle in a

safe place, release and retract the seat

belts to unlock them and then fasten

them again.

Also, if a seat belt can be loosened, it can

be unlocked by slightly retracting it with-

out releasing it.

■

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

dynamometer or speedometer tester,

or when using an on vehicle wheel bal-

ancer

●

When a strong impact has been

applied to the front bumper, rear

bumper or front grille, due to an acci-

dent 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

251

4-5. Using the driving support systems

Driving

■

Enabling/disabling the pre-colli-
sion system

The pre-collision system can be ena-
bled/disabled on

(



P.114) of the

multi-information display.

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

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

■

Enabling/Disabling the pedestrian
alert system

The pedestrian alert can be ena-
bled/disabled on

(



P.114) of the

multi-information display.

■

Changing the pre-collision warn-
ing timing

The pre-collision warning timing can
be changed on

(



P.114) 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).

Early

Middle

This is the default setting.

Late

■

Changing the pedestrian alert tim-
ing

If the pre-collision warning timing is
changed, the pedestrian alert timing
will also be changed accordingly.

WARNING

●

If equipment (snow plow, etc.) that may

obstruct a radar sensor or the front

camera is temporarily installed to the

vehicle

Changing settings of the pre-col-
lision system

252

4-5. Using the driving support systems

■

Operational conditions

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

collision with a vehicle, pedestrian/bicyclist, guardrail, etc. or a front side collision with a

vehicle 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 position is in R

●

When the VSC OFF indicator is illuminated (only the pedestrian alert and pre-collision

warning function will be operational)

●

When there is insufficient safe or unobstructed space for the vehicle to be steered into

●

When an object is approaching the area the vehicle is to be steered into

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

●

Pedestrian alert

●

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.

●

Pre-collision brake assist

Detectable objects

Vehicle speed

Pedestrians

Approx. 30 to 65 km/h (20 to 40 mph)

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding and stopped vehi-

cles

Approx. 5 to 180 km/h (3 to

110 mph)

Approx. 5 to 180 km/h (3 to

110 mph)

Oncoming vehicles

Approx. 10 to 180 km/h (7 to

110 mph)

Approx. 20 to 180 km/h (13

to 110 mph)

Bicyclists and pedestrians

Approx. 5 to 80 km/h (3 to

50 mph)

Approx. 5 to 80 km/h (3 to

50 mph)

Detectable objects

Vehicle speed

Approaching vehicle speed

Vehicles approaching from

the front left or right side

Approx. 10 to 60 km/h (7 to

37 mph)

Approx. 15 to 60 km/h (10 to

37 mph)

253

4-5. Using the driving support systems

Driving

●

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.

●

Active steering assist

If either of the following occur while the active steering assist function is operating, it will be

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

●

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

When the turn signal lights are not flashing, support for turning left or right at an intersec-
tion which targets oncoming vehicles does not work.

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding and stopped vehi-

cles

Approx. 30 to 180 km/h (20

to 110 mph)

Approx. 30 to 180 km/h (20

to 110 mph)

Bicyclists and pedestrians

Approx. 30 to 80 km/h (20

to 50 mph)

Approx. 30 to 80 km/h (20

to 50 mph)

Detectable objects

Vehicle speed

Approaching vehicle speed

Vehicles approaching from

the front left or right side

Approx. 30 to 60 km/h (19

to 37 mph)

Approx. 15 to 60 km/h (10 to

37 mph)

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding and stopped vehi-

cles

Approx. 5 to 180 km/h (3 to

110 mph)

Approx. 5 to 180 km/h (3 to

110 mph)

Oncoming vehicles

Approx. 10 to 180 km/h (7 to

110 mph)

Approx. 20 to 180 km/h (13

to 110 mph)

Bicyclists and pedestrians

Approx. 5 to 80 km/h (3 to

50 mph)

Approx. 5 to 80 km/h (3 to

50 mph)

Detectable objects

Vehicle speed

Pedestrians

Approx. 40 to 65 km/h (25 to 40 mph)

Guardrail

Approx. 60 to 80 km/h (37 to 50 mph)

254

4-5. Using the driving support systems

●

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

When the turn signal lights are not flashing, support for turning left or right at an intersec-
tion which targets oncoming vehicles does not work.

■

Vehicle, pedestrian or bicyclist detec-

tion function

The pre-collision system detects vehicles,

pedestrians and bicyclists based on the size,

profile, and motion of the person. However,

a vehicle, pedestrian or bicyclist may not be

detected depending on the surrounding

brightness and the motion, posture, and

angle of the person, preventing the system

from operating properly. (



P.257)

The illustration shows an image of vehicles,

pedestrians and bicyclists.

■

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 vehicle, pedestrian or

bicyclist

• When changing lanes while overtaking a

vehicle, pedestrian or bicyclist

• When approaching a vehicle, pedestrian

or bicyclist 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 vehicle,

pedestrian, bicyclist, etc.

• When approaching objects on the road-

side, such as vehicle, pedestrian, bicyclist,

guardrails, traffic signs, utility poles, street

Detectable objects

Vehicle speed

Oncoming vehicle

speed

Relative speed

between your vehicle

and object

Oncoming vehicles

Approx. 10 to 25

km/h (7 to 15 mph)

Approx. 30 to 55

km/h (20 to 35 mph)

Approx. 40 to 80

km/h (25 to 50 mph)

Pedestrians

Approx. 10 to 25

km/h (7 to 15 mph)

—

Approx. 10 to 25

km/h (7 to 15 mph)

Detectable objects

Vehicle speed

Oncoming vehicle

speed

Relative speed

between your vehicle

and object

Oncoming vehicles

Approx. 15 to 25 km/h

(10 to 15 mph)

Approx. 30 to 45

km/h (20 to 28 mph)

Approx. 45 to 70

km/h (28 to 43 mph)

Pedestrians

Approx. 10 to 25

km/h (7 to 15 mph)

—

Approx. 10 to 25

km/h (7 to 15 mph)

255

4-5. Using the driving support systems

Driving

lights, trees, walls, etc.

• When there is a vehicle, pedestrian, bicy-

clist or object by the roadside at the

entrance of a curve

• When there are patterns or paint in front

of your vehicle that may be mistaken for a

vehicle, pedestrian or bicyclist

• When the front of your vehicle is hit by

water, snow, dust, etc.

• When overtaking a vehicle, pedestrian or

bicyclist that is changing lanes or making

a right/left turn

• When passing a vehicle, pedestrian or

bicyclist in an oncoming lane that is

stopped to make a right/left turn

• When a vehicle, pedestrian or bicyclist

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, dips, or a

protrusion on the road surface or road-

side

• When a crossing pedestrian or bicyclist

approaches very close to the vehicle

• When passing through a place with a low

structure above the road such as a low

ceiling, underpass, bridge girder, traffic

sign, etc.

• 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 the vehicle, such as thick

grass, tree branches, or a banner

256

4-5. Using the driving support systems

• 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

• While steering into the direction of

oncoming traffic

• When passing an oncoming vehicle on a

narrow road

• When driving close to objects such as

walls or poles on a median

• When passing an oncoming vehicle

around a sharp curve

• When passing a vehicle which is making

a left/right turn

• When being passed by a vehicle

approaching from the left or right side in

front of your vehicle

• When making a left/right turn while a

vehicle is approaching from the left or

right side in front of your vehicle

• When passing an object on the side of the

road, such as a parked vehicle

• When passing an oncoming vehicle on a

S curve

• When there is an object that may be mis-

taken for a pedestrian, such as a utility

257

4-5. Using the driving support systems

Driving

pole, tree, or pole on the roadside or at

the entrance of a curve

• When there is a bicycle or motorcycle on

the roadside at the entrance of a curve

• If the preceding vehicle is a bicycle or

motorcycle

●

The system may operate the pedestrian

alert unnecessarily if it detects the follow-

ing:

• Pedestrians on a sidewalk

• Bicycles and motorcycles

• Patterns or paint on the road, a wall,

median, billboard, etc. that may be mis-

taken for a pedestrian or bicyclist

■

Situations in which the system may not

operate properly

●

In some situations, such as the following,

a vehicle, pedestrian or bicyclist may not

be detected by the sensors, preventing

the system from operating properly:

• When a vehicle, pedestrian or bicyclist is

approaching your vehicle

• When your vehicle or a vehicle, pedes-

trian or bicyclist is wobbling

• If a vehicle, pedestrian or bicyclist makes

an abrupt maneuver (such as sudden

swerving, acceleration or deceleration)

• When your vehicle approaches a vehicle,

pedestrian or bicyclist rapidly

• When a vehicle, pedestrian or bicyclist is

not directly in front of your vehicle

• When a vehicle, pedestrian or bicyclist is

near a wall, fence, guardrail, manhole

cover, vehicle, steel plate on the road, etc.

• When a vehicle, pedestrian or bicyclist is

under a structure

• When part of a vehicle, pedestrian or

bicyclist is hidden 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 vehicles, pedestrians or

bicyclists are close together

• If the sun or other light is shining directly

on a vehicle, pedestrian, bicyclist or

guardrail ahead

• When a vehicle, pedestrian or bicyclist is

a shade of white and looks extremely

bright

• When a vehicle, pedestrian or bicyclist

appears to be nearly the same color or

brightness as its surroundings

• If a vehicles, pedestrians or bicyclists 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 per-

sonal 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

Lexus LS (2023 year). Manual in english - page 7