LEXUS RC300, RC350 (2019 year). Instruction — part 9

139

4-3. Operating the lights and wipers

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4

Driving

come on when the system is operating.

■

Conditions to turn the high beams on/off

automatically

●

When all of the following conditions are

met, the high beams will be turned on

automatically (after approximately 1 sec-

ond):

• The vehicle speed is approximately 21

mph (34 km/h) or more.

• The area ahead of the vehicle is dark.

• There are no vehicles ahead with head-

lights or tail lights turned on.

• There are few streetlights on the road

ahead.

●

If any of the following conditions is met,

the high beams will turn off automatically:

• The vehicle speed is below approxi-

mately 17 mph (27 km/h).

• The area ahead of the vehicle is not dark.

• Vehicles ahead have their headlights or

tail lights turned on.

• There are many streetlights on the road

ahead.

■

Camera sensor detection information

●

The high beams may not be automatically

turned off in the following situations:

• When a vehicle suddenly appears from

around a curve

• When the vehicle is cut in front of by

another vehicle

• When vehicles ahead cannot be

detected due to repeated curves, road

dividers or roadside trees

• When vehicles ahead appear in a far-

away lane on a wide road

• When the lights of vehicles ahead are not

on

●

The high beams may be turned off if a

vehicle ahead that is using fog lights with-

out its headlights turned on is detected.

●

House lights, street lights, traffic signals,

and illuminated billboards or signs and

other reflective objects may cause the

high beams to change to the low beams,

or the low beams to remain on.

●

The following factors may affect the

amount of time taken for the high beams

to turn on or off:

• The brightness of the headlights, fog

lights, and tail lights of vehicles ahead

• The movement and direction of vehicles

ahead

• When a vehicle ahead only has opera-

tional lights on one side

• When a vehicle ahead is a two-wheeled

vehicle

• The condition of the road (gradient,

curve, condition of the road surface, etc.)

• The number of passengers and amount of

luggage in the vehicle

●

The high beams may turn on or off unex-

pectedly.

●

Bicycles or similar vehicles may not be

detected.

●

In the following situations the system may

not be able to correctly detect the sur-

rounding brightness level. This may cause

the low beams to remain on or the high

beams to flash or dazzle pedestrians or

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

sary to manually switch between the high

and low beams.

• When driving in inclement weather

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

• When the windshield is obscured by fog,

mist, ice, dirt, etc.

• When the windshield is cracked or dam-

aged

• When the camera sensor is deformed or

dirty

• When the temperature of the camera

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-

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4-3. Operating the lights and wipers

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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

■

Temporarily lowering sensor sensitivity

The sensitivity of the sensor can be tempo-

rarily lowered.

1

Turn the engine switch off while the fol-

lowing conditions are met.

●

The headlight switch is in

or

.

●

The headlight switch lever is in high beam

position.

●

Automatic High Beam switch is on.

2

Turn the engine switch to IGNITION

ON mode.

3

Within 30 seconds after

2

, repeat pull-

ing the headlight switch lever to the

original position then pushing it to the

high beam position quickly 10 times,

then leave the lever in high beam posi-

tion.

4

If the sensitivity is changed, the Auto-

matic High Beam indicator is turn on

and off 3 times.

Automatic High Beam (headlights) may

turn on even when the vehicle is stopped.

■

Switching to the low beams

Pull the lever to its original position.

The Automatic High Beam indicator will
turn off.
Push the lever away from you to activate
the Automatic High Beam system again.

■

Switching to the high beams

Press the Automatic High Beam
switch.

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

Turning the high beams on/off
manually

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Driving

Operating the

lever operates

the wipers or washer as follows. The
lever will return to its original position
after operation.



Intermittent windshield wipers with
interval adjuster

1

(U.S.A.) or

(Canada)

Move the lever up by 2 levels

2

Move the lever up by 1 level

3

(U.S.A.) or

(Canada)

Move the lever down by 1 level

4

(U.S.A.) or

(Canada)

Move the lever down by 2 levels

Depending on the operating state of
the wipers when the wiper lever is
operated, the wipers will operate as
follows.
• Current wiper operation: Off

• Current wiper operation: Intermit-

tent operation

• Current wiper operation: Low

speed operation

Windshield wipers and
washer

Operating the lever can use the
windshield wipers or the washer.

NOTICE

■

When the windshield is dry

Do not use the wipers, as they may dam-

age the windshield.

Operating the wiper lever

Wiper lever oper-

ation

Wiper operation

or

Temporary operation

Temporary operation

or

Intermittent operation

or

High speed operation

Wiper lever oper-

ation

Wiper operation

or

Off

Off

or

Low speed operation

or

High speed operation

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• Current wiper operation: High

speed operation

Wiper intervals can be adjusted when
intermittent operation is selected.

5

Increases the intermittent wind-
shield wiper frequency

6

Decreases the intermittent wind-
shield wiper frequency

7

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
engine switch is in IGNITION 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.



Rain-sensing windshield wipers

1

(U.S.A.) or

(Canada)

Wiper lever oper-

ation

Wiper operation

or

Off

Intermittent operation

or

High speed operation

or

High speed operation

Wiper lever oper-

ation

Wiper operation

or

Off

Low speed operation

or

No change

or

No change

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Driving

Move the lever up by 2 levels

2

Move the lever up by 1 level

3

(U.S.A.) or

(Canada)

Move the lever down by 1 level

4

(U.S.A.) or

(Canada)

Move the lever down by 2 levels

5

AUTO mode on/off switch

With AUTO mode selected, the wipers will
operate automatically when the sensor
detects falling rain. The system automati-
cally adjusts wiper timing in accordance
with rain volume and vehicle speed.
The AUTO mode indicator

will turn on

when AUTO mode is selected.

Depending on the operating state of
the wipers when the wiper lever is
operated, the wipers will operate as
follows.
• Current wiper operation: Off

• Current wiper operation: Low

speed operation

• Current wiper operation: High

speed operation

• Current wiper operation: AUTO

mode (Intermittent operation)

• Current wiper operation: AUTO

mode (Continuously)

Wiper lever oper-

ation

Wiper operation

or

Temporary operation

Temporary operation

or

Low speed operation

or

High speed operation

Wiper lever oper-

ation

Wiper operation

or

Off

Off

A

or

High speed operation

or

High speed operation

Wiper lever oper-

ation

Wiper operation

or

Off

Low speed operation

or

No change

or

No change

Wiper lever oper-

ation

Wiper operation

or

Off

Temporary opera-

tion

*1

or

Low speed opera-

tion

*2

or

High speed opera-

tion

*2

Wiper lever oper-

ation

Wiper operation

or

Off

No change

Wiper lever oper-

ation

Wiper operation

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*1

: After temporary operation, the mode

will return to AUTO mode.

*2

: AUTO mode will be canceled.

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

6

Increases the sensitivity

7

Decreases the sensitivity

8

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
engine switch is in IGNITION 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.

The wipers can be used as intermittent
windshield wipers, which operate
regardless of vehicle speed or amount
of raindrops. The intermittent wind-
shield wiper operation can be switched
when the vehicle is stopped and the
wiper is off. The wiper operation can-
not be switched during AUTO mode
or while the intermittent windshield
wipers are operating.

Press and hold

until the AUTO

mode indicator stops flashing.

If

is pressed and held until the AUTO

mode indicator stops flashing again, it will
return to its previous state.
The wiper can be switched when the vehi-
cle is stopped and the wipers are off.

or

Low speed opera-

tion

*2

or

High speed opera-

tion

*2

Wiper lever oper-

ation

Wiper operation

Switching between the intermit-
tent windshield wipers and
rain-sensing windshield wipers
(vehicles with rain-sensing wind-
shield wipers)

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Driving

■

Operation of the intermittent
windshield wipers with interval
adjuster

1

(U.S.A.) or

(Canada)

Move the lever up by 2 levels

2

Move the lever up by 1 level

3

(U.S.A.) or

(Canada)

Move the lever down by 1 level

4

(U.S.A.) or

(Canada)

Move the lever down by 2 levels

Depending on the operating state of
the wipers when the wiper lever is
operated, the wipers will operate as
follows.
• Current wiper operation: Off

• Current wiper operation: Intermit-

tent operation

• Current wiper operation: Low

speed operation

• Current wiper operation: High

speed operation

Wiper lever oper-

ation

Wiper operation

or

Temporary operation

Temporary operation

or

Intermittent operation

or

High speed operation

Wiper lever oper-

ation

Wiper operation

or

Off

Off

or

Low speed operation

or

High speed operation

Wiper lever oper-

ation

Wiper operation

or

Off

Intermittent operation

or

High speed operation

or

High speed operation

Wiper lever oper-

ation

Wiper operation

or

Off

Low speed operation

Wiper lever oper-

ation

Wiper operation

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Wiper intervals can be adjusted when
intermittent operation is selected.

5

Increases the intermittent wind-
shield wiper frequency

6

Decreases the intermittent wind-
shield wiper frequency

7

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
engine switch is in IGNITION 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.

■

The windshield wiper and washer can be

operated when

The engine switch is in IGNITION ON

mode.

■

Dripping prevention wiper sweep

After performing a washing and wiping

operation several times, the wipers operate

one more time after a short delay to prevent

dripping.
However, this final wiper operation will not

be performed while driving.

■

Effects of vehicle speed on wiper opera-

tion (vehicles with rain-sensing wind-

shield wipers)

Vehicle speed affects the following even

when the wipers are not in AUTO mode.

●

Intermittent wiper interval

●

Wiper operation when the washer is

being used (delay until drip prevention

wiper sweep occurs)

With low speed windshield wiper opera-

tion selected, wiper operation will be

switched from low speed to intermittent

wiper operation only when the vehicle is

stationary.

■

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 is turned to AUTO mode

while the engine switch is in IGNITION

or

No change

or

No change

Wiper lever oper-

ation

Wiper operation

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Driving

ON mode, the wipers will operate once

to show that AUTO mode is activated.

●

If the temperature of the raindrop sensor

is 185°F (85°C) or higher, or -22°F

(-30°C) or lower, automatic operation

may not occur. In this case, operate the

wipers in any mode other than AUTO

mode.

■

When the windshield wipers are in tem-

porary operation (vehicles with

rain-sensing windshield wipers)

AUTO mode cannot be activated even if

is pressed.

■

If no windshield washer fluid sprays

Check that the washer nozzles are not

blocked if there is washer fluid in the wind-

shield washer fluid reservoir.

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 your Lexus dealer.

Do not try to clear it with a pin or other

object. The nozzle will be damaged.

148

4-4. Refueling

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4-4.Refueling

 Close both side doors and windows,

and turn the engine switch off.

 Confirm the type of fuel.

■

Fuel types

P.327

■

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.

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 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 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.

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4-4. Refueling

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Driving

1

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

Push until you hear a click and take your

hand away to slightly open the fuel filler

door. Then open the door fully by hand.

2

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.303

1

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.

2

Close the fuel filler door, and press
the center of the rear edge of the
fuel filler door until you hear a click.

When you lock the doors, the fuel filler

door will also lock.

■

When closing the fuel filler door

Do not lock the doors before closing the

fuel filler door, as the fuel filler door cannot

be closed if the doors are locked. If the

doors are locked and the fuel filler door

cannot be closed, unlock the doors and

then close the fuel filler door.

■

Fuel filler door lock condition

The fuel filler door may not be locked even

when the vehicle’s doors are locked in the

following situations:

●

When operating the door lock button

inside the vehicle

●

When the automatic door locking system

is operated (

P.88)

Opening the fuel tank cap

Closing the fuel tank cap

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4-4. Refueling

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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.

151

4-5. Using the driving support systems

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Driving

4-5.Using the driving support systems

■

PCS (Pre-Collision System)

P.154

■

LDA (Lane Departure Alert with
steering control)

P.161

■

Automatic High Beam

P.138

■

Dynamic radar cruise control

P.168

The pre-collision system is equipped
with a sophisticated computer that will
record certain data, such as:

• Accelerator status
• Brake status
• Vehicle speed
• Operation status of the pre-collision

system functions

• Information (such as the distance

and relative speed between your
vehicle and the vehicle ahead or
other objects)

• Images from the camera sensor

(available only when the pre-colli-
sion braking function or the pre-col-
lision brake assist function was
operating)

The pre-collision system does not
record conversations, sounds or
images of the inside of the vehicle.
 Data usage

Lexus may use the data recorded in this
computer to diagnose malfunctions, con-
duct research and development, and
improve quality.
Lexus will not disclose the recorded data to
a third party except:
• With the consent of the vehicle owner or

with the consent of the lessee if the vehi-
cle is leased

• In response to an official request by the

police, a court of law or a government
agency

• For use by Lexus in a lawsuit
• For research purposes where the data is

not tied to a specific vehicle or vehicle
owner

 Recorded images can be erased

using a specialized device.

The image recording function can be dis-
abled. However, if the function is disabled,
data from when the pre-collision system

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.

Vehicle data recording

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operates will not be available.

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

Radar sensor
Camera sensor

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.

●

Keep the radar sensor and front grille

emblem clean at all times.

Radar sensor

Front grille emblem

A
B

A
B

If the front of the radar sensor or the front
or back of the front grille emblem is dirty
or covered with water droplets, snow,
etc., clean it.
Clean the radar sensor and front grille
emblem with a soft cloth so you do not
mark or damage them.

●

Do not attach accessories, stickers

(including transparent stickers) or

other items to the radar sensor, front

grille emblem or surrounding area.

●

Do not subject the radar sensor or sur-

rounding 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, front grille emblem or surrounding

area.

●

If the radar sensor, front grille, or front

bumper needs to be removed and

installed, or replaced, contact your

Lexus dealer.

■

To avoid malfunction of the camera

sensor

Observe the following precautions.
Otherwise, the camera sensor 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., clear 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 camera

sensor.

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Driving

WARNING

• If the inner side of the windshield

where the camera sensor is installed is

dirty, contact your Lexus dealer.

●

Do not attach objects, such as stickers,

transparent stickers, and so forth, to

the outer side of the windshield in front

of the camera sensor (shaded area in

the illustration).

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

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

●

If the part of the windshield in front of

the camera sensor is fogged up or

covered with condensation or ice, use

the windshield defogger to remove the

fog, condensation or ice. (

P.209)

●

If water droplets cannot be properly

removed from the area of the wind-

shield in front of the camera sensor by

the windshield wipers, replace the

wiper insert or wiper blade.

If the wiper inserts or wiper blades need
to be replaced, contact your Lexus
dealer.

●

Do not attach window tinting to the

windshield.

●

Replace the windshield if it is damaged

or cracked.

If the windshield needs to be replaced,

contact your Lexus dealer.

A

B

●

Do not get the camera sensor wet.

●

Do not allow bright lights to shine into

the camera sensor.

●

Do not dirty or damage the camera

sensor.

When cleaning the inside of the wind-

shield, do not allow glass cleaner to

contact the lens. Also, do not touch the

lens.

If the lens is dirty or damaged, contact

your Lexus dealer.

●

Do not subject the camera sensor to a

strong impact.

●

Do not change the installation position

or direction of the camera sensor or

remove it.

●

Do not disassemble the camera sen-

sor.

●

Do not modify any components of the

vehicle around the camera sensor

(inside rear view mirror, etc.) or ceiling.

●

Do not attach any accessories that

may obstruct the camera sensor to the

hood, front grille or front bumper.

Contact 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 camera sen-

sor.

●

Do not modify the headlights or other

lights.

154

4-5. Using the driving support systems

RC350AWD_RC350_RC300AWD_RC30

0_OM_(U)_1810

■

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

When the system determines that the
possibility of a frontal collision is high,
the system warns the driver. If the sys-
tem determines that the possibility of a
frontal collision is extremely high, the
brakes are automatically applied to
help avoid the collision or reduce the
collision speed.

■

Suspension control (if equipped)

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

P.192) will control the damping

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

■

Steering control (if equipped)

When the system determines that the
possibility of a frontal collision is high
and the driver is operating the steering
wheel, the LDH system (

P.193) will

control the turning angle of the front

PCS (Pre-Collision System)

The pre-collision system uses a
radar sensor and camera sensor to
detect vehicles and pedestrians in
front of your vehicle. When the sys-
tem determines that the possibility
of a frontal collision with a vehicle
or pedestrian is high, a warning
operates to urge the driver to take
evasive action and the potential
brake pressure is increased to help
the driver avoid the collision. If the
system determines that the possi-
bility of a frontal collision with a
vehicle or pedestrian 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.156)

System functions