Lexus LC (2021 year). Manual in english

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4-5. Using the driving support systems

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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

• 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

: For countries/areas specified as Region

B (



P.259), the pedestrian detection

function may not be available.

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,

266

4-5. Using the driving support systems

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 <hybrid system> 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

• 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.)

: For countries/areas specified as Region

B (



P.259), the pedestrian detection

function may not be available.

If VSC is disabled

If VSC is disabled (



P.326), 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.

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4-5. Using the driving support systems

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: 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 to alert the driver.

When the warning buzzer sounds, check
the surrounding road situation and care-
fully operate the steering wheel to move
the vehicle back to the center of the lane.

Steering assist 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.

For Israel: 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 dis-
played on the multi-information display
and the warning buzzer sounds.
Except for Israel: 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 warn-
ing is displayed on the multi-information
display and the function is temporarily can-

LKA (Lane-Keeping Assist)

When driving on highways and
freeways with white or 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. Further-
more, the system also provides
steering assistance when dynamic
radar cruise control with full-speed
range is operating to keep the vehi-
cle in its lane.
The LKA system recognizes visible
white or yellow lines with the front
camera on the upper portion of the
front windshield.

Functions included in LKA sys-
tem

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WARNING

Before using LKA system

Do not rely solely upon the LKA system.

The LKA 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 LKA system by

mistake

When not using the LKA system, use the

LKA switch to turn the system off.

Situations unsuitable for LKA system

Do not use the LKA 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.

Preventing LKA system malfunctions

and operations performed by mistake

Do not modify the headlights or place

stickers, etc. on the surface of the

lights.

270

4-5. Using the driving support systems

Press the LKA switch to turn the LKA
system on.

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

LKA indicator

The illumination condition of the indicator
informs the driver of the system operation
status.
Illuminated in white:
LKA system is operating.
Illuminated in green:
Steering wheel assistance of the steering
assist function or lane centering 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 assist function or lane center-
ing 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.

WARNING

Do not modify the suspension etc. If

the suspension etc. needs to be

replaced, contact any 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 any authorized Lexus retailer or

Lexus authorized repairer, or any reli-

able repairer.

Turning LKA system on

Indications on multi-information
display

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

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
recognize white (yellow) lines or is
temporarily canceled.

Operation conditions of each function

Lane departure alert function

This function operates when all of the fol-
lowing conditions are met.
• LKA 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.273)

Steering assist function

This function operates when all of the fol-
lowing conditions are met in addition to the
operation conditions for the lane departure
alert function.
• Setting for “Steering Assist” in

of the

multi-information display is set to “On”.

(



P.106)

• 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.

• Except for Israel: Hands off steering

wheel warning is not displayed.

(



P.272)

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.106)

• 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.273)

Lane centering function

This function operates when all of the fol-
lowing conditions are met.
• LKA is turned on.

• Setting for “Steering Assist” and “Lane

Center” in

of the multi-information

display are set to “On”. (



P.106)

• System recognizes white (yellow) lines.

• Dynamic radar cruise control with full-

272

4-5. Using the driving support systems

speed range is operating.

• Width of traffic lane is approximately 2.5

to 4.1 m (8.2 to 13.5 ft.).

• 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 200 m (656

ft.).

• No system malfunctions are detected.

(



P.273)

• Vehicle does not accelerate or deceler-

ate 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.

• Except for Israel: Hands off steering

wheel warning is not displayed.

(



P.272)

• Steering assist function is not operating.

Temporary cancellation of functions

When the operation conditions are no lon-

ger met, a function may be temporarily can-

celed. However, when the operation

conditions are met again, operation of the

function is automatically restored. (



P.271)

Steering assist function/lane centering

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.

Hands off steering wheel warning

For Israel: When the system determines

that the driver has removed their hands

from the steering wheel while the steering

assist function or lane centering function is

operating, a warning message urging the

driver to hold the steering wheel and the

symbol shown in the illustration are dis-

played on the multi-information display.
If the driver continues to keep their hands

off of the steering wheel, a buzzer sounds

and a warning message and the symbol

shown in the illustration are displayed on

the multi-information display. This warning

also operates in the same way when the

driver continuously operates the steering

wheel only a small amount. Always keep

your hands on the steering wheel when

using this system, regardless of warnings.

Depending on the vehicle and road condi-

tions, the warning may not operate.
Except for Israel: When the system deter-

mines that the driver has removed their

hands from the steering wheel while the

steering assist function or lane centering

function is operating, a warning message

urging the driver to hold the steering wheel

and the symbol shown in the illustration are

displayed on the multi-information display.
If the driver continues to keep their hands

off of the steering wheel, a warning mes-

sage and the symbol shown in the illustra-

tion are displayed on the multi-information

display, and the function is temporarily can-

celed. This warning also operates in the

same way when the driver continuously

operates the steering wheel only a small

amount. Always keep your hands on the

steering wheel when using this system,

regardless of warnings.

Depending on the vehicle and road condi-

tions, the warning may not operate.

Vehicle sway warning function

When the system determines that the vehi-

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4-5. Using the driving support systems

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cle is swaying while the vehicle sway warn-

ing function is operating, a buzzer sounds

and a warning message urging the driver to

rest and the symbol shown in the illustration

are simultaneously displayed on the multi-

information display.

Depending on the vehicle and road condi-

tions, the warning may not operate.

White (yellow) lines are only on one side

of road

The LKA system will not operate for the

side on which white (yellow) lines could not

be recognized.

Conditions in which functions may not

operate properly

In the following situations, the front camera

may not detect white (yellow) lines and vari-

ous functions may not operate normally.

There are shadows on the road that run

parallel with, or cover, the white (yellow)

lines.

The vehicle is driven in an area without

white (yellow) lines, such as in front of a

tollgate or checkpoint, or at an intersec-

tion, etc.

The white (yellow) lines are cracked,

“Raised pavement marker” or stones are

present.

The white (yellow) lines cannot be seen

or are difficult to see due to sand, etc.

The vehicle is driven on a road surface

that is wet due to rain, puddles, etc.

The traffic lines are yellow (which may be

more difficult to recognize than lines that

are white).

The white (yellow) lines cross over a curb,

etc.

The vehicle is driven on a bright surface,

such as concrete.

The vehicle is driven on a surface that is

bright due to reflected light, etc.

The vehicle is driven in an area where the

brightness changes suddenly, such as at

the entrances and exits of tunnels, etc.

Light from the headlights of an oncoming

vehicle, the sun, etc. enters the camera.

The vehicle is driven where the road

diverges, merges, etc.

The vehicle is driven on a slope.

The vehicle is driven on a road which tilts

left or right, or a winding road.

The vehicle is driven on an unpaved or

rough road.

The vehicle is driven around a sharp

curve.

The traffic lane is excessively narrow or

wide.

The vehicle is extremely tilted due to car-

rying heavy luggage or having improper

tire pressure.

The distance to the preceding vehicle is

extremely short.

The vehicle is moving up and down a

large amount due to road conditions

during driving (poor roads or road

seams).

The headlight lenses are dirty and emit a

faint amount of light at night, or the beam

axis has deviated.

The vehicle is struck by a crosswind.

The vehicle has just changed lanes or

crossed an intersection.

Snow tires, etc. are equipped.

Warning message

If the following warning message is dis-

played on the multi-information display and

the LKA indicator illuminates in orange, fol-

low the appropriate troubleshooting proce-

dure.

274

4-5. Using the driving support systems

If a different warning message is displayed,

follow the instructions displayed on the

screen.

Customization

The following settings can be changed.

Warning mes-

sage

Details/Actions

“Lane Keep-

ing Assist

Malfunction

Visit Your

Dealer”

The system may not be
operating properly.



Have the vehicle

inspected any authorized
Lexus retailer or Lexus
authorized repairer, or
any reliable repairer.

“Front Cam-

era Vision

Blocked

Clean and

Demist Wind-

shield”

Dirt, rain, condensation,
ice, snow, etc. are present
on the windshield in front
of the front camera.



Turn the LKA system

off, remove any dirt, rain,
condensation, ice, snow,
etc. from the windshield,
and then turn the LKA sys-
tem back on.

“Front Cam-

era Unavail-

able”

The operation conditions
of the front camera (tem-
perature, etc.) are not
met.



When the operation

conditions of the front
camera (temperature,
etc.) are met, the LKA sys-
tem will become avail-
able. Turn the LKA system
off, wait for a little while,
and then turn the LKA sys-
tem back on.

“Lane Keep-

ing Assist

Unavailable”

The LKA system is tempo-
rarily canceled due to a
malfunction in a sensor
other than the front cam-
era.



Turn the LKA system

off and follow the appro-
priate troubleshooting
procedures for warning
messages. Afterward,
drive the vehicle for a
short time, and then turn
the LKA system back on.

“Lane Keep-

ing Assist

Unavailable

Below

Approx

50km/h”

The LKA system cannot
be used as the vehicle
speed is less than approxi-
mately 50 km/h (32
mph).



Drive the vehicle at

approximately 50 km/h
(32 mph) or more.

“Lane Keep-

ing Assist

Unavailable at

Current

Speed”

The LKA system cannot
be used as the vehicle
speed is too high.



Slow down.

Function

Setting details

Lane depar-

ture alert

function

Adjust alert sensitivity

Steering

assist function

Turn steering wheel assis-

tance on and off

Warning mes-

sage

Details/Actions

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For how to change settings, refer to P.495.

: If equipped

Vehicle sway

warning func-

tion

Turn function on and off

Adjust alert sensitivity

Lane center-

ing function

Turn function on and off

Function

Setting details

RSA (Road Sign Assist)

RSA recognizes specific road signs
using the front camera

and pro-

vides information to the driver via
the multi-information display.

If the system judges that the vehicle
is being driven over the speed limit,
performing prohibited actions, etc.
in relation to the recognized road
signs, it alerts the driver using a
warning display and warning
buzzer

: This setting needs to be customized.

WARNING

Before using the RSA

Do not rely solely upon the RSA system.

RSA is a system which supports the

driver by providing information, but it is

not a replacement for a driver’s own

vision and awareness. Drive safely by

always paying careful attention to the

traffic rules.
Inappropriate or negligent driving could

lead to an unexpected accident.

276

4-5. Using the driving support systems

After the front camera recognizes a
sign, it is displayed on the multi-infor-
mation display when the vehicle passes
the sign.



When the driving assist system
information is selected, a maximum
of 3 signs can be displayed.
(



P.106)



When other than the driving assist
system information is selected, a
speed limit sign or an all canceled
sign can be displayed. (



P.106)

A no overtaking sign and a speed limit sign
with supplemental mark are not displayed.
However, if signs other than speed limit
signs are recognized, they are mentioned
in a stack under the current speed limit
sign.

The following types of road signs, including electronic signs and blinking signs, are
recognized.

A non-official (not meeting the Vienna Convention) or a recently introduced traffic sign
may not be recognized.

Indication on the multi-informa-
tion display

Types of recognized road signs

Type

Multi-information display

Speed limit begins/ends

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4-5. Using the driving support systems

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: If the turn signal indicator is not operated when changing lanes, the mark does not dis-

play.

: For vehicles with navigation system

In the following situations, the RSA sys-
tem alerts the driver using a warning
display.



When the vehicle speed exceeds
the speed warning threshold
applied to the speed limit of the sign
displayed on the multi-information

display, the sign color becomes
inverted.



If it is detected that your vehicle is
overtaking when a no overtaking
sign is displayed on the multi-infor-
mation display, the sign flashes.



Vehicles with navigation system:
When the RSA system recognizes a
no-entry sign and detects that the

Speed limit with supple-
mental mark (Displayed

simultaneously with

speed limit)

(Display example)

Wet

Rain

Ice

On/off ramp

Supplemental mark

exists

(Contents not recog-

nized)

No overtaking begins/ends

No-entry

All canceled

(All restrictions canceled. Returns to default road

regulation.)

Type

Multi-information display

Warning display

278

4-5. Using the driving support systems

vehicle has entered a no-entry area
based on the map information of the
navigation system, the no-entry sign
flashes.

Depending on the situation, traffic
environment (traffic direction, speed,
unit) may be detected incorrectly and a
warning display may not operate prop-
erly.

Automatic turn-off of RSA sign display

One or more signs automatically turn off in

the following situations.

A new sign is not recognized for a certain

distance.

The road changes due to a left or right

turn, etc.

Conditions in which the function may

not operate or detect correctly

In the following situations, RSA does not

operate normally and may not recognize

signs, display the incorrect sign, etc. How-

ever, this does not indicate a malfunction.

The front camera is misaligned due to a

strong impact being applied to the sen-

sor, etc.

Dirt, snow, stickers, etc., are on the wind-

shield near the front camera.

In inclement weather such as heavy rain,

fog, snow or sand storms

Light from an oncoming vehicle, the sun,

etc. enters the front camera.

The sign is dirty, faded, tilted or bent, and

if an electronic sign, the contrast is poor.

All or part of the sign is hidden by the

leaves of a tree, a pole, etc.

The sign is only visible to the front camera

for a short amount of time.

The driving scene (turning, lane change,

etc.) is judged incorrectly.

Even if it is a sign not appropriate for the

currently traveled lane, such a sign exists

directly after a freeway branches, or in an

adjacent lane just before merging.

Stickers are attached to the rear of the

preceding vehicle.

A sign resembling a system compatible

sign is recognized.

The vehicle is driven in a country with a

different direction of traffic.

Side road speed signs may be detected

and displayed (if positioned in sight of the

front camera) while the vehicle is travel-

ing on the main road.

Roundabout exit road speed signs may

be detected and displayed (if positioned

in sight of the front camera) while travel-

ing on a roundabout.

Vehicles without navigation system: The

speed information displayed on the

meter and that displayed on the naviga-

tion system may be different due to the

navigation system using map data.

When driving vehicle in country with dif-

ferent speed unit

Since RSA recognizes signs based on the

set unit of the meter, it is necessary to

change the set unit of the meter. Adjust the

set unit of the meter to the speed unit of

signs in the current location. (



P.495)

Turning the system on/off

Select

of the

multi-information display (



P.106)

Press “OK” on the steering wheel.

Speed limit sign display

If the engine switch <power switch> was last

turned off while a speed limit sign was dis-

played on the multi-information display, the

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4-5. Using the driving support systems

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same sign displays again when the engine

switch <power switch> is turned to IGNI-

TION ON mode <ON mode>.

Customization

Setting (e.g. speeding warning threshold)

can be changed.

(Customizable feature:



P.495)

: If equipped

Meter display

Display

Set speed

Indicators

Dynamic radar cruise con-
trol with full-speed range

In vehicle-to-vehicle distance con-
trol mode, the vehicle automati-
cally accelerates, decelerates and
stops to match the speed changes
of the preceding vehicle even if the
accelerator pedal is not depressed.
In constant speed control mode,
the vehicle runs at a fixed speed.
Use the dynamic radar cruise con-
trol with full-speed range on free-
ways and highways.



Vehicle-to-vehicle distance con-
trol mode (



P.282)



Constant speed control mode
(



P.286)

System components

A
B
C

280

4-5. Using the driving support systems

Operation switches

Vehicle-to-vehicle distance switch

“+RES” switch

Cruise control main switch

Cancel switch

“-SET” switch

WARNING

Before using dynamic radar cruise

control with full-speed range

Driving safely is the sole responsibility

of the driver. Do not rely solely on the

system, and drive safely by always pay-

ing careful attention to your surround-

ings.

The dynamic radar cruise control with

full-speed range provides driving

assistance to reduce the driver’s bur-

den. However, there are limitations to

the assistance provided.

Read the following conditions care-

fully. Do not overly rely on this system

and always drive carefully.

• When the sensor may not be correctly

detecting the vehicle ahead:



P.288

• Conditions under which the vehicle-

to-vehicle distance control mode may

not function correctly:



P.288

A
B
C
D

Set the speed appropriately depend-

ing on the speed limit, traffic flow, road

conditions, weather conditions, etc.

The driver is responsible for checking

the set speed.

Even when the system is functioning

normally, the condition of the preced-

ing vehicle as detected by the system

may differ from the condition

observed by the driver. Therefore, the

driver must always remain alert, assess

the danger of each situation and drive

safely. Relying on this system or assum-

ing the system ensures safety while

driving can lead to an accident, result-

ing in death or serious injury.

Switch the dynamic radar cruise con-

trol with full-speed range off using the

cruise control main switch when not in

use.

Cautions regarding the driving assist

systems

Observe the following precautions, as

there are limitations to the assistance

provided by the system.

Failure to do so may cause an accident

resulting in death or serious injury.

Assisting the driver to measure follow-

ing distance

The dynamic radar cruise control with
full-speed range is only intended to help
the driver in determining the following
distance between the driver’s own vehi-
cle and a designated vehicle traveling
ahead. It is not a mechanism that allows
careless or inattentive driving, and it is
not a system that can assist the driver in
low-visibility conditions. It is still neces-
sary for driver to pay close attention to
the vehicle’s surroundings.

Lexus LC (2021 year). Manual in english - page 12