Lexus LS (2022 year). Manual in english - page 14

234

4-5. Using the driving support systems



Region A



Region B

■

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 detectable object or other 

object by the roadside at the entrance of 

a curve

• When there are patterns or paint in front 

of your vehicle that may be mistaken for a 

detectable object

• When the front of your vehicle is hit by 

water, snow, dust, etc.

• When overtaking a detectable object 

that is changing lanes or making a 

right/left turn

• When passing a detectable object in an 

oncoming lane that is stopped to make a 

right/left turn

• When a detectable object approaches 

very close and then stops before entering 

the path of your vehicle

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

ered, such as when on an uneven or 

undulating road surface

• When driving on a road surrounded by a 

structure, such as in a tunnel or on an iron 

bridge

• When there is a metal object (manhole 

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

sion in front of your vehicle

235

4

4-5. Using the driving support systems

Driving

• 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.)

• For region A: While making a right/left 

turn, when an oncoming vehicle or a 

crossing pedestrian has already exited 

the path of your vehicle

• For region A: While making a right/left 

turn, closely in front of an oncoming vehi-

cle or a crossing pedestrian.

• For region A: While making a right/left 

turn, when an oncoming vehicle or a 

crossing pedestrian stops before enter-

ing the path of your vehicle

• For region A: While making a right/left 

turn, when an oncoming vehicle turns 

right/left in front of your vehicle

• For region A: 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 

236

4-5. Using the driving support systems

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 or bicy-

cle (for region B)

• If a vehicle ahead is narrow, such as a per-

sonal 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

• For region A: If a vehicle ahead is a child 

sized bicycle, a bicycle that is carrying a 

large load, a bicycle ridden by more than 

one person, or a uniquely shaped bicycle 

(bicycle with a child seat, tandem bicycle, 

etc.)

• For region A: If a pedestrian/or the riding 

height of a bicyclist ahead is shorter than 

approximately 1 m (3.2 ft.) or taller than 

approximately 2 m (6.5 ft.)

• For region A: If a pedestrian/bicyclist is 

wearing oversized clothing (a rain coat, 

long skirt, etc.), making their silhouette 

obscure

• For region A: If a pedestrian is bending 

forward or squatting or bicyclist is bend-

ing forward

• For region A: If a pedestrian/bicyclist is 

moving fast

• For region A: If a pedestrian is pushing a 

stroller, wheelchair, bicycle or other vehi-

cle

• 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 

237

4

4-5. Using the driving support systems

Driving

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

• For region A: When driving in a traffic 

lane separated by more than one lane 

where oncoming vehicles are driving 

while making a right/left turn

• For region A: When largely out of place 

with the opposite facing targeted oncom-

ing vehicle during a right/left turn

• For region A: While making a right/left 

turn, when a pedestrian approaches from 

behind or side of your vehicle

●

For region A: In addition to the above, in 

some situations, such as the following, the 

emergency steering assist may not oper-

ate.

• For region A: 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

• For region A: When the lane is wider or 

narrower than normal

• For region A: When there is a light and 

dark pattern on the road surface, such as 

due to road repairs

• For region A: When the target is too 

close

• For region A: When there is insufficient 

safe or unobstructed space for the vehi-

cle to be steered into

• For region A: If oncoming vehicle is pres-

ent

• For region A: If VSC function is operating

●

In some situations such as the following, 

sufficient braking force or steering force 

(for region A) may not be obtained, pre-

venting 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

• 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.323), the 

pre-collision brake assist and pre-colli-

sion 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.

238

4-5. Using the driving support systems

*

: If  equipped

When the system detects a vehicle 
approaching from the left or right in 
front of your vehicle when approaching 
an intersection, a notification will be 
displayed on the head-up display and 
panoramic view monitor

*

.

*

: Refer to “NAVIGATION AND MULTI-

MEDIA SYSTEM OWNER’S MAN-
UAL”.

When the system determines that your 
vehicle may be about to enter an inter-
section even though a vehicle is 
approaching from the left or right in 
front of your vehicle, a buzzer will 
sound and a message will be displayed 
on the multi-information display to 
urge you to depress the brake pedal.



Head-up display



Multi-information display

FCTA (Front Cross Traffic 
Alert)

*

When approaching an intersection 
at low speed, the radar sensors on 
the front side of the vehicle can 
detect approaching vehicles to the 
left and right of the front of the vehi-
cle. In this case, the head-up display 
is used to inform the driver of 
detected vehicles.

FCTA system functions

WARNING

■

Cautions regarding the use of the 

function

The driver is solely responsible for safe 

driving. Always drive safely, taking care 

to observe your surroundings.
The FCTA system is a supplementary 

system that informs the driver of vehicles 

approaching from the left and right of the 

front of the vehicle.
Do not overly rely on the FCTA system. 

Over reliance on the system may lead to 

an accident, resulting in death or serious 

injury.
The details of the warning display may 

differ from the actual traffic conditions.
Although the warning display will stop 

being displayed after a certain amount of 

time, this does not indicate that vehicles 

or pedestrians are no longer around your 

vehicle.

239

4

4-5. Using the driving support systems

Driving

■

Enabling/disabling the FCTA sys-
tem

The FCTA system can be enabled/dis-
abled on 

 (



P.81) of the 

multi-information display.

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

■

Changing the alert timing

The FCTA (Front Cross Traffic Alert) 
timing can be changed on 

 (



P.81) 

of the multi-information display.

The set alert timing is retained when the 
engine switch is turned off. However, if the 
FCTA system is disabled and re-enabled, 
the alert timing will return to the default 
setting (middle).

1

Early

2

Middle

This is the default setting.

3

Late

■

The FCTA function is operational when

The system operates when all of the follow-

ing conditions are met.

●

A shift position other than P or R is 

selected.

●

Vehicle speed is approximately 15 km/h 

(9 mph) or lower.

●

A vehicle is approaching from the left or 

right in front of your vehicle at a speed 

between approximately 10 km/h (6 mph) 

and 60 km/h (37 mph).

●

There are no preceding vehicles ahead of 

your vehicle.

●

The accelerator pedal is not strongly 

depressed.

●

The brake pedal is not being strongly 

depressed.

■

Situations in which the system may 

operate even though no vehicles are 

approaching

In certain situations, such as the following, 

the system may operate even though no 

vehicles are approaching:

●

When approaching objects on the road-

side, such as guardrails, traffic signs, util-

ity poles, street lights, trees, or walls

●

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

●

When passing an object on the side of the 

road, such as a parked vehicle

●

When a vehicle or pedestrian is 

approaching from the left or right in front 

of your vehicle from far away

●

When a vehicle or pedestrian is moving 

within a parking spot, etc. next to the lane 

your vehicle is driving in

●

When a pedestrian or bicyclist is moving 

on a sidewalk

●

When a vehicle or pedestrian is moving 

away from your vehicle

●

When a vehicle approaching from the left 

or right in front of your vehicle is deceler-

ating or stops

Changing settings of the FCTA 
system

240

4-5. Using the driving support systems

●

When a vehicle approaching from the left 

or right in front of your vehicle makes a 

left/right turn immediately in front of your 

vehicle

●

When a pedestrian is approaching your 

vehicle

●

When an oncoming vehicle makes a 

left/right turn

●

When your vehicle enters an intersection 

before a vehicle approaching from the 

left or right in front of your vehicle

●

When stopped at traffic light and a vehi-

cle approaches from the left or right in 

front of your vehicle

●

When driving in a location where there 

are objects which reflect radar, such as 

vehicles, guardrails, walls, traffic signs, 

etc.

●

When making a left/right turn in front of 

an approaching vehicle

●

When passing an oncoming vehicle

●

When being overtaken by another vehi-

cle

●

When driving next to another vehicle or a 

pedestrian

●

When a vehicle or pedestrian 

approaches the side of your vehicle

Some objects, such as the following, may be 

detected and cause the FCTA system to 

operate:

●

Pedestrians

■

Situations in which the system may not 

operate properly

In some situations, such as the following, a 

vehicle may not be detected by a front side 

radar sensor, preventing the system from 

operating properly:

●

If the front end or side of an approaching 

vehicle is small (sports cars, etc.)

●

If the front end of an approaching vehicle 

is low (low-slung sports cars, etc.)

●

If the ground clearance of an approach-

ing vehicle is extremely high

●

If the shape of an approaching vehicle is 

unusual (tractors, motorcycles with side-

cars, etc.)

●

If a vehicle suddenly enters the detection 

area on the left or right in front of your 

vehicle from a parking lot, etc.

●

If an approaching vehicle moves sud-

denly (sudden steering, acceleration, 

deceleration, etc.)

●

When driving in inclement weather such 

as heavy rain, fog, snow or a sandstorm

●

After the engine has been started and the 

vehicle has not been driven for a certain 

amount of time

●

When driving on a road with a grade that 

changes sharply (sharp incline/decline)

●

When driving around a sharp curve or on 

an undulating road

●

If a vehicle is approaching from the left or 

right of the front of your vehicle diago-

nally

●

When a vehicle is approaching from the 

left or right in front of your vehicle from 

far away

●

When there is an object between your 

vehicle and an approaching vehicle

●

When driving in a location where there 

are objects which reflect radar, such as 

guardrails, walls, vehicles, etc.

●

When a group of vehicles which are close 

together approach

241

4

4-5. Using the driving support systems

Driving

●

Immediately after the FCTA system has 

been enabled

■

If the PCS warning light illuminates and 

a message is displayed on the 

multi-information display

The system may be temporarily unavailable 

or may be malfunctioning.

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

*

, and also can slightly operate 

the steering wheel to help avoid devia-
tion from the lane or course

*

. Also, 

while the dynamic radar cruise control 
with full-speed range is operating, this 
system will operate the steering wheel 
to maintain the vehicle’s lane position.
The LTA system recognizes white (yel-
low) lane lines or a course

*

 using the 

front camera. Additionally, 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

LTA (Lane Tracing Assist) 
(vehicles with Lexus Safety 
System + A)

Summary of functions

242

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.

●

When not using the LTA system, use 

the LTA switch to turn the system off.

■

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.

●

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 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 relia-

ble repairer.

■

Conditions in which functions may 

not operate properly

In the following situations, the functions 

may not operate properly and the vehicle 

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 functions.

●

When the follow-up cruising display is 

displayed (



P.246) and the preced-

ing vehicle changes lanes. (Your vehi-

cle may follow the preceding vehicle 

and also change lanes.)

243

4

4-5. Using the driving support systems

Driving

WARNING

●

When the follow-up cruising display is 

displayed (



P.246) and the preced-

ing vehicle is swaying. (Your vehicle 

may sway accordingly and depart from 

the lane.)

●

When the follow-up cruising display is 

displayed (



P.246) 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.246) 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, 

“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.

244

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.
Vehicle with BSM: When the system deter-
mines 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 lane departure alert will 
operate even if the turn signals are operat-
ing.

*

: Boundary between asphalt and the side 

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

WARNING

●

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.

●

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 system

245

4

4-5. Using the driving support systems

Driving

■

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.

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.
Vehicle with BSM: When the system deter-
mines 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 operat-
ing.

*

: 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.

246

4-5. Using the driving support systems

■

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 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.
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.

Press the LTA switch to turn the LTA 
system on.

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

LTA indicator

The illumination condition of the indicator 
informs the driver of the system operation 
status.
Illuminated in white: LTA system is operat-

Turning LTA system on

Indications on multi-information 
display

A

247

4

4-5. Using the driving support systems

Driving

ing.
Illuminated in green: Steering wheel assis-
tance 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

Displayed when the multi-information dis-
play is switched to the driving support sys-
tem information display.
Indicates that steering wheel assistance of 
the steering assist function or lane center-
ing function is operating.
Both outer sides of the lane are displayed: 
Indicates that steering wheel assist of the 
lane centering function is operating.
One outer side of the lane is displayed: 
Indicates that steering wheel assist of the 
steering assist function is operating.
Both outer sides of the lane are flashing: 
Alerts the driver that their input is neces-
sary to stay in the center of the lane (lane 
centering function).

Lane departure alert function dis-
play

Displayed when the multi-information dis-
play is switched to the driving support sys-
tem information display.



Inside of displayed lines is white

Indicates that the system is recognizing 

white (yellow) lines or a course

*

. When 

the vehicle departs from its lane, the 
white line displayed on the side the 
vehicle departs from flashes orange.



Inside of displayed lines is black

Indicates that the system is not able to 
recognize white (yellow) lines or a 
course

*

 or is temporarily canceled.

*

: Boundary between asphalt and the side 

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

Follow-up cruising display

Displayed when the multi-information dis-
play is switched to the driving support sys-
tem information display.
Indicates that steering assist of the lane 
centering function is operating by monitor-
ing the position of a preceding vehicle.
When the follow-up cruising display is dis-
played, if the preceding vehicle moves, 
your vehicle may move in the same way. 
Always pay careful attention to your 
surroundings and operate the steering 
wheel as necessary to correct the path of 
the vehicle and ensure safety.

B

C

D

248

4-5. Using the driving support systems

■

Warning display

When the lane centering function is oper-
ating and the system determines that the 
vehicle may depart from its lane due to a 
sharp curve, etc., a warning display urging 
the driver to operate the steering wheel, 
will be displayed.
In some situations a warning display may 
not be displayed.

Some displays, which are the same as 
those displayed on the multi-informa-
tion display, will be displayed.

■

LTA system curve display on the 
head-up display

The curve display on the head-up display 
changes according to the direction and 
curvature of the curve.

■

Operation conditions of each function

●

Lane departure alert function

This function operates when all of the fol-

lowing conditions are met.

• LTA is turned on.

• Vehicle speed is approximately 50 km/h 

(32 mph) or more.

*1

• System recognizes white (yellow) lane 

lines or a course

*2

. (When a white [yel-

low] line or course

*2

 is recognized on 

only one side, the system will operate 

only for the recognized side.)

• Width of traffic lane is approximately 3 m 

(9.8 ft.) or more.

• Turn signal lever is not operated. (Vehicle 

with BSM: Except when another vehicle 

is in the lane on the side where the turn 

signal was operated)

• Vehicle is not being driven around a 

sharp curve.

• No system malfunctions are detected. 

(



P.251)

*1

: The function operates even if the vehi-

cle speed is less than approximately 50 
km/h (32 mph) when the lane center-
ing function is operating.

*2

: Boundary between asphalt and the side 

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

●

Steering assist 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.81)

• Vehicle is not accelerated or decelerated 

by a fixed 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.250)

Indications on head-up display

249

4

4-5. Using the driving support systems

Driving

●

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.81)

• 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.251)

●

Lane centering function

This function operates when all of the fol-

lowing conditions are met.

• LTA is turned on.

• Setting for “Steering Assist” and “Lane 

Centre” in 

 of the multi-information 

display are set to “ON”. (



P.81)

• This function recognizes white (yellow) 

lane lines or the position of a preceding 

vehicle (except when the preceding vehi-

cle is small, such as a motorcycle).

• The dynamic radar cruise control with 

full-speed range is operating in vehi-

cle-to-vehicle distance control mode.

• Width of traffic lane is approximately 3 to 

4 m (10 to 13 ft.).

• Turn signal lever is not operated.

• Vehicle is not being driven around a 

sharp curve.

• No system malfunctions are detected. 

(



P.251)

• Vehicle does not accelerate or 

decelerate by a fixed 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.250)

• The driver has one or both hands on the 

steering wheel.

• The vehicle is being driven in the center 

of a lane.

• Steering assist function is not operating.

■

Temporary cancelation of functions

●

When 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.248)

●

If the operation conditions (



P.248) are 

no longer met while the lane centering 

function is operating, the steering wheel 

may vibrate and the buzzer may sound to 

indicate that the function has been tem-

porarily canceled. However, if the “Alert” 
customization setting is set to 

, 

the system will notify the driver by vibrat-

ing the steering wheel instead of sound-

ing the buzzer.

■

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 

operating or the function may not oper-

ate at all.

●

Even if the curve speed reduction func-

tion (



P.272) operates, the lane center-

ing function may not be able to drive the 

vehicle around a curve successfully.

●

The steering control of the function is 

overridden by the driver’s steering wheel 

operation.

●

Do not attempt to test the operation of 

the steering assist function.

■

Lane departure alert function

●

The warning buzzer may be difficult to 

hear due to external noise, audio play-

back, etc. Also, it may be difficult to feel 

steering wheel vibrations due to the road 

conditions, etc.

●

If the edge of the course

*

 is not clear or 

straight, the lane departure alert function 

may not operate.

●

Vehicle with BSM: It may not be possible 

for the system to determine if there is a 

danger of a collision with a vehicle in an 

adjacent lane.

●

Do not attempt to test the operation of