Lexus LX600 (2022 year). Manual in english

219

4-5. Using the driving support systems

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ing

The system can detect the following
(The detectable objects differs
depending on the function.):



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.

■

Emergency steering assist

If the system determines that the possi-
bility of a frontal collision is high and
that there is sufficient space for the
vehicle to be steered into within its
lane, and the driver has begun evasive
maneuver or steering, emergency
steering assist will assist the steering
movements to help enhance the vehi-
cle stability and for lane departure pre-
vention. During operation, the
indicator will illuminate in green.

PCS (Pre-Collision System)

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



P.219) 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 fron-
tal 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.222)

Detectable objects

System functions

220

4-5. Using the driving support systems

■

Intersection right/left turn assis-
tance

If the system determines that there is a
high possibility of a collision in the fol-
lowing situations, it will assist with Pre-
collision warning and, if necessary Pre-
collision braking.
Depending on the configuration of the
intersection, it may not be possible to
support.



When you turn right/left at an inter-
section and cross the path of an
oncoming vehicle



When you turn right/left, pedestrian
is detected in the forward direction
and estimated to enter your vehi-
cle’s path (bicyclists are not
detected.)

■

Pre-collision seatbacks (rear seats
of 4-passenger models)

If the system determines that the possi-
bility of a frontal collision is high, it may
move the seatbacks of the front pas-
senger’s seat and power rear seats to
the upright position automatically, if
reclined.
If a seat is being adjusted, it may not be
moved by the pre-collision seat func-
tion.

■

Suspension control (if equipped)

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



P.366) will control the damp-

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

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4-5. Using the driving support systems

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WARNING

■

Limitations of the pre-collision sys-

tem

●

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.225

• Conditions under which the system

may not operate properly:



P.227

●

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.

■

Emergency steering assist

●

As emergency steering assist opera-

tion will be canceled when the system

determines that lane departure pre-

vention function has been completed.

●

Emergency steering assist may not

operate or may be cancel in the fol-

lowing cases as the system may deter-

mine the driver is taking actions.

• If the accelerator pedal is being

depressed strongly, the steering wheel

is being operated sharply, the brake

pedal is being depressed or the turn

signal lever is being operated. In this

case, the system may determine that

the driver is taking evasive action and

the emergency steering assist may not

operate.

222

4-5. Using the driving support systems

■

Enabling/disabling the pre-colli-
sion system

The pre-collision system can be
enabled/disabled on

(



P.81) of

the multi-information display.

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

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

WARNING

• In some situations, while the emer-

gency steering assist is operating,

operation of the function may be can-

celed if the accelerator pedal is

depressed strongly, the steering wheel

is operated sharply or the brake pedal

is being depressed and the system

determines that the driver is taking

evasive action.

• When the emergency steering assist is

operating, if the steering wheel is held

firmly or is operated in the opposite

direction to that which the system is

generating torque, the function may

be canceled.

■

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

●

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

camera is temporarily installed to the

vehicle

Changing settings of the pre-
collision system

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■

Changing the pre-collision warn-
ing timing

The pre-collision warning timing can
be changed on

(



P.81) of the

multi-information display.

The warning timing setting is retained
when the engine switch is turned to OFF.
However, if the pre-collision system is dis-
abled and re-enabled, the operation timing
will return to the default setting (middle).
If the pre-collision warning timing is
changed, emergency steering assist tim-
ing will also be changed accordingly.
If late is selected, emergency steering
assist would not operate in case of an
emergency.

Early

Middle

This is the default setting.

Late

■

Operational conditions for each pre-collision function

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

tal collision with a detected object is high.
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)

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

●

Pre-collision warning

While the pre-collision warning function is operating, if the steering wheel is operated heav-

ily or suddenly, the pre-collision warning may be cancelled.

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding and stopped vehi-

cles

Approx. 7 to 110 mph (10 to

180 km/h)

Approx. 7 to 110 mph (10 to

180 km/h)

Oncoming vehicles

Approx. 7 to 110 mph (10 to

180 km/h)

Approx. 13 to 110 mph (20 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)

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4-5. Using the driving support systems

●

Pre-collision brake assist

●

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.

●

Emergency steering assist

When the turn signal lights are flashing, emergency steering assist will not operate in case of

an emergency.

If any of the following occur while the emergency steering assist function is operating, it will

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

●

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

When the turn signal lights are not flashing, support for turning left or right at an intersection

which targets oncoming vehicles does not work.

Detectable objects

Vehicle speed

Relative speed between your

vehicle and object

Preceding and stopped vehi-

cles

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

Preceding and stopped vehi-

cles

Approx. 7 to 110 mph (10 to

180 km/h)

Approx. 7 to 110 mph (10 to

180 km/h)

Oncoming vehicles

Approx. 7 to 110 mph (10 to

180 km/h)

Approx. 13 to 110 mph (20 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

Preceding and stopped vehi-

cles, bicyclists and pedestri-

ans

Approx. 25 to 50 mph (40

to 80 km/h)

Approx. 25 to 50 mph (40

to 80 km/h)

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4-5. Using the driving support systems

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●

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

When the turn signal lights are not flashing, support for turning left or right at an intersection

which targets oncoming vehicles does not work.

■

Object detection function

The system detects objects based on their

size, profile, motion, etc. However, an

object may not be detected depending on

the surrounding brightness and the motion,

posture, and angle of the detected object,

preventing the system from operating

properly. (



P.227)

The illustration shows an image of detect-

able objects.

■

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

Detectable objects

Vehicle speed

Oncoming vehicle

speed

Relative speed

between your vehi-

cle and object

Oncoming vehicles

Approx. 7 to 15 mph

(10 to 25 km/h)

Approx. 20 to 35

mph (30 to 55 km/h)

Approx. 25 to 50

mph (40 to 80

km/h)

Pedestrians

Approx. 7 to 15 mph

(10 to 25 km/h)



Approx. 7 to 15 mph

(10 to 25 km/h)

Detectable objects

Vehicle speed

Oncoming vehicle

speed

Relative speed

between your vehi-

cle and object

Oncoming vehicles

Approx. 10 to 15 mph

(15 to 25 km/h)

Approx. 20 to 28

mph (30 to 45 km/h)

Approx. 28 to 43

mph (45 to 70 km/h)

Pedestrians

Approx. 7 to 15 mph

(10 to 25 km/h)



Approx. 7 to 15 mph

(10 to 25 km/h)

226

4-5. Using the driving support systems

• 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.)

• When approaching an electric toll gate

barrier, parking area barrier, or other

barrier that opens and closes

• When using an automatic car wash

• When driving through or under objects

that may contact your vehicle, such as

thick grass, tree branches, or a banner

• When driving through steam or smoke

• When driving near an object that reflects

radio waves, such as a large truck or

guardrail

• When driving near a TV tower, broad-

casting station, electric power plant,

radar equipped vehicles, etc., or other

location where strong radio waves or

electrical noise may be present

• When there are many things which can

reflect the radio waves of the radar in the

vicinity (tunnels, truss bridges, gravel

roads, snow covered road that have

tracks, etc.)

• While making a right/left turn, when an

oncoming vehicle or a crossing pedes-

trian has already exited the path of your

vehicle

• While making a right/left turn, closely in

front of an oncoming vehicle or a cross-

ing pedestrian.

• While making a right/left turn, when an

oncoming vehicle or a crossing pedes-

trian stops before entering the path of

your vehicle

• While making a right/left turn, when an

oncoming vehicle turns right/left in front

of your vehicle

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4-5. Using the driving support systems

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• While steering into the direction of

oncoming traffic

■

Situations in which the system may not

operate properly

●

In some situations such as the following,

an object may not be detected by the

radar sensor and front camera, prevent-

ing the system from operating properly:

• When a detectable object is approaching

your vehicle

• When your vehicle or a detectable object

is wobbling

• If a detectable object makes an abrupt

maneuver (such as sudden swerving,

acceleration or deceleration)

• When your vehicle approaches a detect-

able object rapidly

• When a detectable object is not directly

in front of your vehicle

• When a detectable object is near a wall,

fence, guardrail, manhole cover, vehicle,

steel plate on the road, etc.

• When a detectable object is under a

structure

• When part of a detectable object is hid-

den by an object, such as large baggage,

an umbrella, or guardrail

• When there are many things which can

reflect the radio waves of the radar in the

vicinity (tunnels, truss bridges, gravel

roads, snow covered road that have

tracks, etc.)

• When there is an effect on the radio

waves to the radar that is installed on

another vehicle

• When multiple detectable objects are

close together

• If the sun or other light is shining directly

on a detectable object

• When a detectable object is a shade of

white and looks extremely bright

• When a detectable object appears to be

nearly the same color or brightness as its

surroundings

• If a detectable object cuts or suddenly

emerges in front of your vehicle

• When the front of your vehicle is hit by

water, snow, dust, etc.

• When a very bright light ahead, such as

the sun or the headlights of oncoming

traffic, shines directly into the front cam-

era

• When approaching the side or front of a

vehicle ahead

• If a vehicle ahead is a motorcycle

• If a vehicle ahead is narrow, such as a

personal mobility vehicle

• If a preceding vehicle has a small rear

end, such as an unloaded truck

• If a preceding vehicle has a low rear end,

such as a low bed trailer

• If a vehicle ahead has extremely high

ground clearance

• If a vehicle ahead is carrying a load which

protrudes past its rear bumper

• If a vehicle ahead is irregularly shaped,

such as a tractor or side car

• If a vehicle ahead is a child sized bicycle,

a bicycle that is carrying a large load, a

228

4-5. Using the driving support systems

bicycle ridden by more than one person,

or a uniquely shaped bicycle (bicycle with

a child seat, tandem bicycle, etc.)

• If a pedestrian/or the riding height of a

bicyclist ahead is shorter than approxi-

mately 3.2 ft. (1 m) or taller than approxi-

mately 6.5 ft. (2 m)

• If a pedestrian/bicyclist is wearing over-

sized clothing (a rain coat, long skirt,

etc.), making their silhouette obscure

• If a pedestrian is bending forward or

squatting or bicyclist is bending forward

• If a pedestrian/bicyclist is moving fast

• If a pedestrian is pushing a stroller,

wheelchair, bicycle or other vehicle

• When driving in inclement weather such

as heavy rain, fog, snow or a sandstorm

• When driving through steam or smoke

• When the surrounding area is dim, such

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

a tunnel, making a detectable object

appear to be nearly the same color as its

surroundings

• When driving in a place where the sur-

rounding brightness changes suddenly,

such as at the entrance or exit of 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

• If the wheels are misaligned

• If a wiper blade is blocking the front cam-

era

• The vehicle is being driven at extremely

high speeds

• When driving on a hill

• If the radar sensor or front camera is mis-

aligned

• When driving in a traffic lane separated

by more than one lane where oncoming

vehicles are driving while making a

right/left turn

• When largely out of place with the oppo-

site facing targeted oncoming vehicle

during a right/left turn

• While making a right/left turn, when a

pedestrian approaches from behind or

side of your vehicle

●

In addition to the above, in some situa-

tions, such as the following, the emer-

gency steering assist may not operate.

• When the white (yellow) lane lines are

difficult to see, such as when they are

faint, diverging/merging, or a shadow is

cast upon them

• When the lane is wider or narrower than

normal

• When there is a light and dark pattern on

the road surface, such as due to road

repairs

• When the target is too close

• When there is insufficient safe or unob-

structed space for the vehicle to be

steered into

• If oncoming vehicle is present

• If VSC function is operating

●

In some situations such as the following,

sufficient braking force or steering force

may not be obtained, preventing the sys-

tem from performing properly:

• If the braking functions cannot operate to

their full extent, such as when the brake

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4-5. Using the driving support systems

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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

• When the road surface has deep wheel

tracks

• When driving on a hill road

• When driving on a road that has inclines

to the left or right

■

If VSC is disabled

●

If VSC is disabled (



P.366), the pre-

collision brake assist and pre-collision

braking 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.

LTA (Lane Tracing Assist)

While driving on a road with clear
white (yellow) lane lines, the LTA
system warns the driver if the vehi-
cle may deviate from the current
lane or course

, and also can

slightly operate the steering wheel
to help avoid deviation from the
lane or course

. Also, while the

dynamic radar cruise control with
full-speed range (



P.241) is oper-

ating, this system will operate the
steering wheel to maintain the vehi-
cle’s lane position.

The LTA system recognizes white
(yellow) lane lines or a course

using the front camera. Addition-
ally, it detects preceding vehicles
using the front camera and radar.

: Boundary between asphalt and the

side of the road, such as grass, soil, or
a curb

230

4-5. Using the driving support systems

WARNING

■

Before using LTA system

●

Do not rely solely upon the LTA sys-

tem. The LTA system does not auto-

matically 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 driving safely by pay-

ing careful attention to the surround-

ing conditions and operating 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.

■

Situations unsuitable for LTA system

In the following situations, use the LTA

switch to turn the system off. Failure to do

so may lead to an accident, resulting in

death or serious injury.

●

Vehicle is driven on a road surface

which is slippery due to rainy weather,

fallen snow, freezing, etc.

●

Vehicle is driven on a snow-covered

road.

●

White (yellow) lines are difficult to see

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

●

Vehicle is driven in a temporary lane

or restricted lane due to construction

work.

●

Vehicle is driven in a construction

zone.

●

A spare tire, tire chains, etc. are

equipped.

●

When the tires have been excessively

worn, or when the tire inflation pres-

sure is low.

●

When your vehicle is towing a trailer

or during emergency towing

■

Preventing LTA 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 Lexus dealer.

●

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 Lexus dealer.

■

Conditions in which functions may

not operate properly

In the following situations, the functions

may not operate properly and the vehi-

cle may depart from its lane. Drive safely

by always paying careful attention to

your surroundings and operate the

steering wheel to correct the path of the

vehicle without relying solely on the func-

tions.

●

When the follow-up cruising display is

displayed (



P.234) and the preced-

ing vehicle changes lanes. (Your vehi-

cle may follow the preceding vehicle

and also change lanes.)

●

When the follow-up cruising display is

displayed (



P.234) and the preced-

ing vehicle is swaying. (Your vehicle

may sway accordingly and depart from

the lane.)

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4-5. Using the driving support systems

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WARNING

●

When the follow-up cruising display is

displayed (



P.234) and the preced-

ing vehicle departs from its lane. (Your

vehicle may follow the preceding vehi-

cle and depart from the lane.)

●

When the follow-up cruising display is

displayed (



P.234) and the preced-

ing vehicle is being driven extremely

close to the left/right lane line. (Your

vehicle may follow the preceding vehi-

cle and depart from the lane.)

●

Vehicle is being driven around a sharp

curve.

●

Objects or patterns that could be mis-

taken for white (yellow) lines are pres-

ent on the side of the road (guardrails,

reflective poles, etc.).

●

Vehicle is driven where the road

diverges, merges, etc.

●

Repair marks of asphalt, white (yellow)

lines, etc. are present due to road

repair.

●

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 inter-

section, etc.

●

The white (yellow) lines are cracked,

“Botts’ dots”, “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 sur-

face, such as concrete.

●

If the edge of the road is not clear or

straight.

●

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.

232

4-5. Using the driving support systems

■

Lane departure alert function

When the system determines that the
vehicle might depart from its lane or
course

, a warning is displayed on the

multi-information display, and either a
warning buzzer will sound or the steer-
ing wheel will vibrate to alert the driver.

When the warning buzzer sounds or the
steering wheel vibrates, check the area
around your vehicle and carefully operate
the steering wheel to move the vehicle
back to the center of the lane.
When the system determines that the vehi-
cle might depart from its lane and that the
possibility of a collision with an overtaking
vehicle in the adjacent lane is high, the lane
departure alert will operate even if the turn
signals are operating.

: Boundary between asphalt and the side

of the road, such as grass, soil, or a curb

WARNING

●

Light from the headlights of an oncom-

ing vehicle, the sun, etc. enters the

camera.

●

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 traffic lane is excessively narrow

or wide.

●

The vehicle is extremely tilted due to

carrying 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).

●

When driving in a tunnel or at night

with the headlights off or when a head-

light is dim due to its lens being dirty or

it being misaligned.

●

The vehicle is struck by a crosswind.

●

The vehicle is affected by wind from a

vehicle driven in a nearby lane.

●

The vehicle has just changed lanes or

crossed an intersection.

●

Tires which differ by structure, manu-

facturer, brand or tread pattern are

used.

●

When tires of a size other than speci-

fied are installed.

●

Snow tires, etc. are equipped.

●

The vehicle is being driven at

extremely high speeds.

Functions included in LTA sys-
tem

233

4-5. Using the driving support systems

riv

ing

■

Steering assist function

When the system determines that the
vehicle might depart from its lane or
course

, the system provides assis-

tance as necessary by operating the
steering wheel in small amounts for a
short period of time to keep the vehicle
in its lane.
When the system determines that the
vehicle might depart from its lane and
that the possibility of a collision with an
overtaking vehicle in the adjacent lane
is high, the steering assist function will
operate even if the turn signals are
operating.

: Boundary between asphalt and the side

of the road, such as grass, soil, or a curb

■

Vehicle sway warning function

When the vehicle is swaying within a
lane, the warning buzzer will sound
and a message will be displayed on the
multi-information display to alert the

driver.

■

Lane centering function

This function is linked with dynamic
radar cruise control with full-speed
range and provides the required assis-
tance by operating the steering wheel
to keep the vehicle in its current lane.

When dynamic radar cruise control with
full-speed range or is not operating, the
lane centering function does not operate.
In situations where the white (yellow) lane
lines are difficult to see or are not visible,
such as when in a traffic jam, this function
will operate to help follow a preceding
vehicle by monitoring the position of the
preceding vehicle.

234

4-5. Using the driving support systems

■

Turning the LTA system ON

Press the LTA switch.

The LTA indicator illuminates and a mes-
sage is displayed on the multi-information
display.

■

Turning the lane centering func-
tion ON/OFF

Press the LTA switch.
The lane centering function will change
between ON/OFF each time the
switch is pressed.
The current setting will be displayed on
the multi-information display.



Lane centering function ON

“LTA Steering Assist Active Lane
Centering Active”



Lane centering function OFF

“LTA Steering Assist Active”

■

Turning the LTA system OFF

Press and hold the LTA switch.
The LTA indicator light turns off when
the LTA is turned OFF.
Press the switch again to turn the sys-
tem on.
When the LTA system is turned on or
off, operation of the LTA system con-
tinues in the same condition the next
time the engine started.

LTA indicator

LTA system setting

Indications on multi-information
display

Lexus LX600 (2022 year). Manual in english - page 13