Lexus RC-F (2022 year). Manual in english

157

4-5. Using the driving support systems

Driving

WARNING

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 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 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 your

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., 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 front

camera.

• If the inner side of the windshield

where the camera sensor 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, 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.231)

158

4-5. Using the driving support systems

WARNING

●

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.

If the windshield needs to be replaced,

contact any authorized Lexus retailer

or Lexus authorized repairer, or any

reliable repairer.

●

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 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

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 that

may obstruct the camera sensor to the

hood, front grille or front bumper.

Contact any authorized Lexus retailer

or Lexus authorized repairer, or any

reliable 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.

159

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 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.231).

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 Unavailable” is
displayed

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

161

4-5. Using the driving support systems

Driving

: If equipped

■

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.212) will control the damping

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

PCS (Pre-Collision System)

The pre-collision system uses a
radar sensor and front camera 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.163)

System functions

162

4-5. Using the driving support systems

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.164

• Conditions under which the system

may not operate properly:



P.166

●

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.

■

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

dynamometer or speedometer tester,

or when using an on vehicle wheel bal-

ancer

163

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.78) 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.

■

Changing the pre-collision warn-
ing timing

The pre-collision warning timing can
be changed on

(



P.78) of the

multi-information display.

The operation timing setting is retained
when the engine switch is turned off.

Far

The warning will begin to operate earlier
than with the default timing.

Middle

This is the default setting.

Near

The warning will begin to operate later
than with the default timing.

WARNING

●

When a strong impact is applied to the

front bumper or front grille, due to an

accident or other reasons

●

If the vehicle cannot be driven in a sta-

ble manner, such as when the vehicle

has been in an accident or is malfunc-

tioning

●

When the vehicle is driven in a sporty

manner or off-road

●

When the tires are not properly

inflated

●

When the tires are very worn

●

When tires of a size other than speci-

fied are installed

●

When tire chains are installed

●

When a compact spare tire or an

emergency tire puncture repair kit is

used

●

If equipment (snow plow, etc.) that may

obstruct the radar sensor or front cam-

era is temporarily installed to the vehi-

cle

Changing settings of the pre-col-
lision system

164

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 or pedestrian

is high.
Each function is operational at the following

speeds:

●

Pre-collision warning:

• Vehicle speed is between approximately

10 and 180 km/h (7 and 110 mph). (For

detecting a pedestrian, vehicle speed is

between approximately 10 and 80 km/h

[7 and 50 mph].)

• The relative speed between your vehicle

and the vehicle or pedestrian ahead is

approximately 10 km/h (7 mph) or more.

●

Pre-collision brake assist:

• Vehicle speed is between approximately

30 and 180 km/h (20 and 110 mph). (For

detecting a pedestrian, vehicle speed is

between approximately 30 and 80 km/h

[20 and 50 mph].)

• The relative speed between your vehicle

and the vehicle or pedestrian ahead is

approximately 30 km/h (20 mph) or

more.

●

Pre-collision braking:

• Vehicle speed is between approximately

10 and 180 km/h (7 and 110 mph). (For

detecting a pedestrian, vehicle speed is

between approximately 10 and 80 km/h

[7 and 50 mph].)

• The relative speed between your vehicle

and the vehicle or pedestrian ahead is

approximately 10 km/h (7 mph) or more.

The system may not operate in the following

situations:

●

If a battery terminal has been discon-

nected and reconnected and then the

vehicle has not been driven for a certain

amount of time

●

If the shift lever is in R

●

If VSC is disabled (only the pre-collision

warning function will be operational)

■

Pedestrian detection function

The pre-collision system detects pedestri-

ans based on the size, profile, and motion of

a detected object. However, a pedestrian

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.166)

■

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 vehicle or pedestrian

• When changing lanes while overtaking a

preceding vehicle

• When overtaking a preceding vehicle

that is changing lanes

• When overtaking a preceding vehicle

that is making a left/right turn

• When passing a vehicle in an oncoming

lane that is stopped to make a right/left

turn

165

4-5. Using the driving support systems

Driving

• When driving on a road where relative

location to vehicle ahead in an adjacent

lane may change, such as on a winding

road

• When rapidly closing on a vehicle ahead

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

ered, such as when the road surface is

uneven or undulating

• When approaching objects on the road-

side, such as guardrails, utility poles,

trees, or walls

• When there is a vehicle, pedestrian, or

object by the roadside at the entrance of

a curve

• When driving on a narrow path sur-

rounded by a structure, such as in a tun-

nel or on an iron bridge

• When there is a metal object (manhole

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

sion on the road surface or roadside

• When a crossing pedestrian approaches

very close to the vehicle

• When passing through a place with a low

structure above the road (low ceiling,

traffic sign, etc.)

• When passing under an object (billboard,

etc.) at the top of an uphill road

• When rapidly closing on 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

• When the vehicle is hit by water, snow,

dust, etc. from a vehicle ahead

166

4-5. Using the driving support systems

• When driving through steam or smoke

• When there are patterns or paint on the

road or a wall that may be mistaken for a

vehicle or pedestrian

• 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, or

other location where strong radio waves

or electrical noise may be present

■

Situations in which the system may not

operate properly

●

In some situations such as the following, a

vehicle may not be detected by the radar

sensor and front camera, preventing the

system from operating properly:

• If an oncoming vehicle is approaching

your vehicle

• If a vehicle ahead is a motorcycle or bicy-

cle

• When approaching the side or front of a

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 is carrying a load which

protrudes past its rear bumper

• If a vehicle ahead has extremely high

ground clearance

• If a vehicle ahead is irregularly shaped,

such as a tractor or side car

• If the sun or other light is shining directly

on a vehicle ahead

• If a vehicle cuts in front of your vehicle or

emerges from beside a vehicle

• If a vehicle ahead makes an abrupt

maneuver (such as sudden swerving,

acceleration or deceleration)

• When suddenly cutting behind a preced-

ing vehicle

• When a vehicle ahead is not directly in

front of your vehicle

• When driving in inclement weather such

as heavy rain, fog, snow or a sandstorm

• When the vehicle is hit by water, snow,

dust, etc. from a vehicle ahead

• When driving through steam or smoke

• When driving in a place where the sur-

rounding brightness changes suddenly,

such as at the entrance or exit of a tunnel

• When a very bright light, such as the sun

or the headlights of oncoming traffic,

shines directly into the front camera

• When the surrounding area is dim, such

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

a tunnel

• After the engine has started the vehicle

has not been driven for a certain amount

of time

• While making a left/right turn and for a

few seconds after making a left/right turn

• While driving on a curve and for a few

seconds after driving on a curve

• If your vehicle is skidding

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

ered

167

4-5. Using the driving support systems

Driving

• If the wheels are misaligned

• If a wiper blade is blocking the front cam-

era

• The vehicle is wobbling.

• The vehicle is being driven at extremely

high speeds.

• When driving on a hill

• If the radar sensor or front camera is mis-

aligned

●

In some situations such as the following,

sufficient braking force may not be

obtained, preventing the system from

performing properly:

• If the braking functions cannot operate to

their full extent, such as when the brake

parts are extremely cold, extremely hot,

or wet

• If the vehicle is not properly maintained

(brakes or tires are excessively worn,

improper tire inflation pressure, etc.)

• When the vehicle is being driven on a

gravel road or other slippery surface

●

Some pedestrians such as the following

may not be detected by the radar sensor

and front camera, preventing the system

from operating properly:

• Pedestrians shorter than approximately 1

m (3.2 ft.) or taller than approximately 2

m (6.5 ft.)

• Pedestrians wearing oversized clothing

(a rain coat, long skirt, etc.), making their

silhouette obscure

• Pedestrians who are carrying large bag-

gage, holding an umbrella, etc., hiding

part of their body

• Pedestrians who are bending forward or

squatting

• Pedestrians who are pushing a stroller,

wheelchair, bicycle or other vehicle

• Groups of pedestrians which are close

together

• Pedestrians who are wearing white and

look extremely bright

• Pedestrians in the dark, such as at night

or while in a tunnel

• Pedestrians whose clothing appears to

be nearly the same color or brightness as

their surroundings

• Pedestrians near walls, fences, guardrails,

or large objects

• Pedestrians who are on a metal object

(manhole cover, steel plate, etc.) on the

road

• Pedestrians who are walking fast

• Pedestrians who are changing speed

abruptly

• Pedestrians running out from behind a

vehicle or a large object

• Pedestrians who are extremely close to

the side of the vehicle (outside rear view

mirror, etc.)

■

If VSC is disabled

●

If VSC is disabled (



P.212), the pre-col-

lision brake assist and pre-collision brak-

ing functions are also disabled.

●

The PCS warning light will turn on and

“VSC Turned Off Pre-Collision Brake

System Unavailable” will be displayed on

the multi-information display.

168

4-5. Using the driving support systems

: If equipped

■

Lane departure alert function

When the system determines that the
vehicle might depart from its lane, a
warning is displayed on the multi-infor-
mation display, and either the warning
buzzer sounds or the steering wheel
vibrates to alert the driver.

When the warning buzzer sounds or the
steering wheel vibrates, check the sur-
rounding road situation and carefully oper-

ate the steering wheel to move the vehicle
back to the center of the lane.

■

Steering control function

When the system determines that the
vehicle might depart from its lane, the
system provides assistance as neces-
sary by operating the steering wheel in
small amounts for a short period of
time to keep the vehicle in its lane.

If the system detects that the steering
wheel has not been operated for a fixed
amount of time or the steering wheel is not
being firmly gripped, a warning is displayed
on the multi-information display and the
function is temporarily canceled.

LDA (Lane Departure Alert
with steering control)

When driving on highways and
freeways with white (yellow) lines,
this function alerts the driver when
the vehicle might depart from its
lane and provides assistance by
operating the steering wheel to
keep the vehicle in its lane.

The LDA system recognizes visible
white (yellow) lines with the camera
sensor on the upper portion of the
front windshield.

Functions included in LDA sys-
tem

169

4-5. Using the driving support systems

Driving

■

Vehicle sway warning function

When the vehicle is swaying or
appears as if it may depart from its lane
multiple times, the warning buzzer
sounds and a message is displayed on
the multi-information display to alert
the driver.

WARNING

■

Before using LDA system

Do not rely solely upon the LDA system.

The LDA system does not automatically

drive the vehicle or reduce the amount of

attention that must be paid to the area in

front of the vehicle. The driver must

always assume full responsibility for driv-

ing safely by paying careful attention to

the surrounding conditions and operat-

ing the steering wheel to correct the path

of the vehicle. Also, the driver must take

adequate breaks when fatigued, such as

from driving for a long period of time.
Failure to perform appropriate driving

operations and pay careful attention may

lead to an accident, resulting in death or

serious injury.

■

To avoid operating LDA system by

mistake

When not using the LDA system, use the

LDA switch to turn the system off.

170

4-5. Using the driving support systems

Press the LDA switch to turn the LDA
system on.

The LDA indicator illuminates and a mes-
sage is displayed on the multi-information
display.
Press the LDA switch again to turn the
LDA system off.
When the LDA system is turned on or off,
operation of the LDA system continues in
the same condition the next time the
engine is started.

WARNING

■

Situations unsuitable for LDA system

Do not use the LDA system in the follow-

ing situations.

The system may not operate properly

and lead to an accident, resulting in

death or serious injury.

●

A spare tire, tire chains, etc. are

equipped.

●

When the tires have been excessively

worn, or when the tire inflation pres-

sure is low.

●

Tires which differ by structure, manu-

facturer, brand or tread pattern are

used.

●

Objects or patterns that could be mis-

taken for white (yellow) lines are pres-

ent on the side of the road (guardrails,

curbs, reflective poles, etc.).

●

Vehicle is driven on a snow-covered

road.

●

White (yellow) lines are difficult to see

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

●

Asphalt repair marks, white (yellow)

line marks, etc. are present due to road

repair.

●

Vehicle is driven in a temporary lane or

restricted lane due to construction

work.

●

Vehicle is driven on a road surface

which is slippery due to rainy weather,

fallen snow, freezing, etc.

●

Vehicle is driven in traffic lanes other

than on highways and freeways.

●

Vehicle is driven in a construction

zone.

●

During emergency towing

■

Preventing LDA system malfunctions

and operations performed by mistake

●

Do not modify the headlights or place

stickers, etc. on the surface of the

lights.

●

Do not modify the suspension etc. If

the suspension etc. needs to be

replaced, contact your authorized

Lexus retailer or Lexus authorized

repairer, or any reliable repairer.

●

Do not install or place anything on the

hood or grille. Also, do not install a

grille guard (bull bars, kangaroo bar,

etc.).

●

If your windshield needs repairs, con-

tact your authorized Lexus retailer or

Lexus authorized repairer, or any relia-

ble repairer.

Turning LDA system on

171

4-5. Using the driving support systems

Driving

LDA indicator

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

Operation display of steering
wheel operation support

Indicates that steering wheel assistance of
the steering control function is operating.

Lane departure alert function dis-
play

Displayed when the multi-information dis-
play is switched to the driving assist system
information screen.



Inside of displayed white lines is
white

Indicates that the system is recognizing
white (yellow) lines. When the vehicle
departs from its lane, the white line dis-
played on the side the vehicle departs from
flashes orange.



Inside of displayed white lines is
black

Indicates that the system is not able to rec-
ognize white (yellow) lines or is temporar-
ily canceled.

Indications on multi-information
display

172

4-5. Using the driving support systems

■

Operation conditions of each function

●

Lane departure alert function

This function operates when all of the fol-

lowing conditions are met.

• LDA is turned on.

• Vehicle speed is approximately 50 km/h

(32 mph) or more.

• System recognizes white (yellow) lines.

• Width of traffic lane is approximately 3 m

(9.8 ft.) or more.

• Turn signal lever is not operated.

• Vehicle is driven on a straight road or

around a gentle curve with a radius of

more than approximately 150 m (492 ft.).

• No system malfunctions are detected.

(



P.174)

●

Steering control function

This function operates when all of the fol-

lowing conditions are met in addition to the

operation conditions for the lane depar-

ture alert function.
• Setting for “Steering Assist” in

of the

multi-information display is set to “On”.

(



P.78)

• Vehicle is not accelerated or decelerated

by a certain amount or more.

• Steering wheel is not operated with a

steering force level suitable for changing

lanes.

• ABS, VSC, TRC and PCS are not oper-

ating.

• TRC or VSC is not turned off.

• Hands off steering wheel warning is not

displayed. (



P.172)

●

Vehicle sway warning function

This function operates when all of the fol-

lowing conditions are met.
• Setting for “Sway Warning” in

of the

multi-information display is set to “On”.

(



P.78)

• Vehicle speed is approximately 50 km/h

(32 mph) or more.

• Width of traffic lane is approximately 3 m

(9.8 ft.) or more.

• No system malfunctions are detected.

(



P.174)

■

Temporary cancellation of functions

When the operation conditions are no

longer met, a function may be temporarily

canceled. However, when the operation

conditions are met again, operation of the

function is automatically restored. (



P.172)

■

Steering control function

Depending on the vehicle speed, lane

departure situation, road conditions, etc.,

the driver may not feel the function is oper-

ating or the function may not operate at all.

■

Lane departure alert function

The warning buzzer may be difficult to hear

due to external noise, audio playback, etc.

Also, it may be difficult to feel steering

wheel vibrations due to the road conditions

etc.

■

Hands off steering wheel warning

In the following situations, a warning mes-

sage urging the driver to hold the steering

wheel and the symbol shown in the illustra-

tion are displayed on the multi-information

display to warn the driver.The warning stops

when the system determines that the driver

holds the steering wheel. Always keep your

hands on the steering wheel when using this

system, regardless of warnings.

●

When the system determines that the

driver is driving without holding the steer-

ing wheel while the system is operating

If the driver continues to keep their hands
off of the steering wheel, the buzzer
sounds, the driver is warned and the func-
tion is temporarily canceled. This warning
also operates in the same way when the
driver continuously operates the steering
wheel only a small amount.
The buzzer also sounds even if the alert

Lexus RC-F (2022 year). Manual in english - page 9