Lexus NX300 (2021 year). Manual in english - page 11

186

4-3. Operating the lights and wipers

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



Type B

Off

Rain-sensing operation

Low speed operation

High speed operation

Temporary operation

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 vehi-
cle speed.

The sensor sensitivity can be adjusted
when

selected.

187

4-3. Operating the lights and wipers

Driving

Increases the sensitivity

Decreases the sensitivity

Washer/wiper dual opera-

tion

■

The windshield wipers and washer can

be operated when

The engine switch is in IGNITION ON

mode.

■

Dripping prevention wiper sweep (vehi-

cles with rain-sensing windshield wip-

ers)

After washing and wiping operation several

times, the wipers operate one more time

after a short delay to prevent dripping.

However, this function will not operate while

driving.

■

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

position while the engine switch is in
IGNITION ON mode, 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.

188

4-3. Operating the lights and wipers

Operating the

switch operates

the rear wiper as follows:



Type A

Off

Intermittent operation

Normal operation

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 fingers,

etc. do not become caught in the wind-

shield 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 battery discharge

Do not leave the wipers on longer than

necessary when the engine is off.

Rear window wiper and
washer

NOTICE

■

When the rear window is dry

Do not use the wiper, as it may damage

the rear window.

Operating the wiper lever

189

4-3. Operating the lights and wipers

Driving

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.



Type B

Off

Intermittent operation

Normal operation

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 engine switch is in IGNITION ON

mode.

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 battery discharge

Do not leave the wiper on longer than

necessary when the engine is off.

190

4-4. Refueling

4-4.Refueling



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



Confirm the type of fuel.

■

Fuel types



P.414

■

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.

■

If the malfunction indicator lamp illumi-

nates

The malfunction indicator lamp may illumi-

nate erroneously if refueling is performed

repeatedly when the fuel tank is nearly full.

With all doors unlocked, press the
center of the rear edge of the fuel
filler door.

Push inward and take your hand away to

slightly open the fuel filler door. Then open

Opening 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 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 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, damaging fuel sys-

tem components or the vehicle’s painted

surface.

Opening the fuel tank cap

191

4-4. Refueling

Driving

the door fully by hand.

Turn the fuel tank cap slowly to
open and 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.

Close the fuel filler door, and press
the center of the rear edge of the
fuel filler door.

When you lock the doors, the fuel filler

door will lock also.

■

Fuel filler door lock condition

The fuel filler door may not be locked even

when the vehicle’s doors are locked in the

following conditions:

●

When operating the door lock button

inside the vehicle

●

When the automatic door locking system

is operated

●

When the fuel filler door is closed after

the vehicle’s doors are locked

■

Warning buzzer for loose fuel cap

When the engine switch is IGNITION ON

mode and the cap is loose, the buzzer

sounds and a message is displayed on the

multi-information display.

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.

192

4-5. Using the driving support systems

4-5.Using the driving support systems

■

PCS (Pre-Collision System)



P.198

■

LTA (Lane Tracing Assist) (if
equipped)



P.205

■

LDA (Lane Departure Alert with
steering control) (if equipped)



P.214

■

AHB (Automatic High Beam)



P.180

■

RSA (Road Sign Assist) (if
equipped)



P.222

■

Dynamic radar cruise control with
full-speed range



P.224

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 + 2.0

The Lexus Safety System + 2.0 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 + 2.0

The Lexus Safety System + 2.0 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

193

4-5. Using the driving support systems

Driving

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 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 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)

194

4-5. Using the driving support systems

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.278)

●

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 ceiling.

●

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.

196

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.

Situation

Actions

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

To clean the part of the windshield in front of
the front camera, use the windshield wipers
or the windshield defogger of the air condi-
tioning system (



P.278).

197

4-5. Using the driving support systems

Driving

●

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 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

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.

Situation

Actions

198

4-5. Using the driving support systems

The system can detect the following:



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.

■

Suspension control (if equipped)

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



P.260) will control the damp-

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

PCS (Pre-Collision System)

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



P.198) 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
collision.

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



P.200)

Detectable objects

System functions

199

4-5. Using the driving support systems

Driving

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.202

• Conditions under which the system

may not operate properly:



P.203

●

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.

■

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 engine running 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

200

4-5. Using the driving support systems

■

Enabling/disabling the pre-colli-
sion system

The pre-collision system can be
enabled/disabled on

(



P.84) of

the multi-information display.

The system is automatically enabled each
time the engine switch is turned to IGNI-
TION 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.

“Pre-Collision System Off”

■

Changing the pre-collision warn-
ing timing

The pre-collision warning timing can
be changed on

(



P.84) of the

multi-information display.

The warning timing setting is retained
when the engine 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

WARNING

●

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 cam-

era is temporarily installed to the vehi-

cle

Changing settings of the pre-col-
lision system

201

4-5. Using the driving support systems

Driving

■

Operational conditions

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

collision with a detected object is high.

Each function is operational at the following speed

●

Pre-collision warning

●

Pre-collision brake assist

●

Pre-collision braking

The system may not operate in the following situations:

●

If a 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)

■

Object detection function

The system detects objects based on their

size, profile, motion, etc. However, an object

may not be detected depending on the sur-

rounding brightness and the motion, pos-

ture, and angle of the detected object,

preventing the system from operating prop-

erly. (



P.203) The illustration shows an

image of detectable objects.

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Vehicles

Approx. 7 to 110 mph (10 to

180 km/h)

Approx. 7 to 110 mph (10 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

Vehicles

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

Vehicles

Approx. 7 to 110 mph (10 to

180 km/h)

Approx. 7 to 110 mph (10 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)

202

4-5. Using the driving support systems

■

Cancelation of the 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.

■

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

• 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.)

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