Lexus LS500h (2023 year). Manual in english - page 8

P.245)

●

“Unavailable Surrounding Vehicle

Detected”

The function cannot be used as a vehicle

was detected in the lane toward which the

turn signal was operated. Operate the turn

signal lever again after checking that there

are no other vehicles nearby.

■

Customization

Function settings can be changed. (Cus-

tomizable features:

250

4-5. Using the driving support systems

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 + 2.5)

Summary of functions

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.

●

During emergency towing.

251

4-5. Using the driving support systems

Driving

WARNING

■

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 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.255) 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.255) 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.255) 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.255) 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.

252

4-5. Using the driving support systems

WARNING

●

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.

●

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.

253

4-5. Using the driving support systems

Driving

■

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

■

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 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
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.

Functions included in LTA system

255

4-5. Using the driving support systems

Driving

Assist Active Lane centering Active” is dis-
played.
When the LTA system is turned on, opera-
tion of the LTA system continues in the
same condition the next time the hybrid
system is started.

■

Turning the LTA system off

Press and hold the LTA switch.

The LTA indicator light turns off when the
LTA is turned off.
When the LTA system is turned off, opera-
tion of the LTA system continues in the
same condition the next time the hybrid
system 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-
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.

Indications on multi-information
display

256

4-5. Using the driving support systems



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 sur-
roundings and operate the steering wheel
as necessary to correct the path of the
vehicle and ensure safety.

■

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 32 mph

(50 km/h) or more.

• System recognizes white (yellow) lane

lines or a course

. (When a white [yel-

low] line or course

is recognized on

only one side, the system will operate

only for the recognized side.)

• Width of traffic lane is approximately 9.8

ft. (3 m) or more.

• Turn signal lever is not operated. (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.258)

: The function operates even if the vehi-

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

: 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.

• 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, TRAC and PCS are not oper-

ating.

• TRAC or VSC is not turned off.

●

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”.

(



• Vehicle speed is approximately 32 mph

(50 km/h) or more.

• Width of traffic lane is approximately 9.8

ft. (3 m) or more.

• No system malfunctions are detected.

(



P.258)

●

Lane centering function

This function operates when all of the fol-

lowing conditions are met.

• LTA is turned on.
• Setting for “Lane Center” in

of the

multi-information display is set to “ON”.

(



• This function recognizes white (yellow)

lane lines or the position of a preceding

vehicle (except when the preceding vehi-

257

4-5. Using the driving support systems

Driving

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 10

to 13 ft. (3 to 4 m).

• Turn signal lever is not operated.

• Vehicle is not being driven around a

sharp curve.

• No system malfunctions are detected.

(

P.258)

• Vehicle does not accelerate or deceler-

ate by a fixed amount or more.

• Steering wheel is not operated with a

steering force level suitable for changing

lanes.

• ABS, VSC, TRAC and PCS are not oper-

ating.

• TRAC or VSC is not turned off.

• Hands off steering wheel warning is not

displayed. (



P.257)

• 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 can-

celed. However, when the operation con-

ditions are met again, operation of the

function is automatically restored.

(

P.256)

●

If the operation conditions (



P.256) 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.

●

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.

●

It may not be possible for the system to

determine if there is a danger of a colli-

sion with a vehicle in an adjacent lane.

●

Do not attempt to test the operation of

the lane departure alert function.

: Boundary between asphalt and the side

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

■

Hands off steering wheel warning

In the following situations, a warning mes-

sage urging the driver to hold the steering

wheel and the symbol shown in the illustra-

tion are displayed on the multi-information

display to warn the driver. The warning

stops when the system determines that the

driver holds the steering wheel. Always

keep your hands on the steering wheel

when using this system, regardless of warn-

ings.

●

When the system determines the driver is

not holding the steering wheel while the

lane centering function is operating.

258

4-5. Using the driving support systems

The buzzer also sounds even if the alert
type is set to

●

When the system determines that the

vehicle may deviate from the lane while

driving around a curve while the lane

centering function is operating.

●

When the system determines that the

driver is driving without holding the steer-

ing wheel while the steering wheel assist

of the steering assist function is operating

■

Vehicle sway warning function

When the system determines that the vehi-

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.

■

Warning message

If the following warning message is dis-

played on the multi-information display and

the LTA indicator illuminates in orange, fol-

low the appropriate troubleshooting proce-

dure. Also, if a different warning message is

displayed, follow the instructions displayed

on the screen.

●

“LTA Malfunction Visit Your Dealer”

The system may not be operating properly.

Have the vehicle inspected by your Lexus

dealer.

●

“LTA Unavailable”

The system is temporarily canceled due to

a malfunction in a sensor other than the

front camera. Turn the LTA system off, wait

for a little while, and then turn the LTA sys-

tem back on.

●

“LTA Unavailable at Current Speed”

The function cannot be used as the vehicle

speed exceeds the LTA operation range.

Drive slower.

■

Customization

Function settings can be changed. (Cus-

tomizable features:

259

4-5. Using the driving support systems

Driving

: If equipped

The RSA system recognizes specific
road signs using the front camera
and/or navigation system (when speed
limit information is available) to provide
information to the driver via the display.

If the system judges that the vehicle is
being driven over the speed limit, per-
forming prohibited actions, etc.
according to the recognized road
signs, it notifies the driver through a
visual notification and notification
buzzer.

When the front camera recognizes a

sign and/or information of a sign is
available from the navigation system,
the sign will be displayed on the
multi-information display.



When the Driving support system
information display is selected, a
maximum of 3 signs can be dis-
played. (





When a tab other than the Driving
support system information display
is selected, the following types of
road signs will be displayed.
(

• Speed limit sign
• Do Not Enter sign (when notification is

necessary)

If signs other than speed limit signs are rec-
ognized, they will be displayed in an over-
lapping stack under the current speed limit
sign.

RSA (Road Sign Assist)

Summary of function

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.

Indication on the multi-informa-
tion display

260

4-5. Using the driving support systems

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

A non-official or a recently introduced traf-
fic sign may not be recognized.

In the following situations, the RSA sys-
tem will notify the driver.



When the vehicle speed exceeds
the speed notification threshold of
the speed limit sign displayed, the
sign display will be emphasized and
a buzzer will sound.



When the RSA system recognizes a
do not enter sign and determines
that your vehicle has entered a
no-entry area, the displayed sign will
flash and a buzzer will sound.

Depending on the situation, a notifica-
tion function may not operate properly.

■

Setting procedure

Press

of the meter control

switches and select

Press

of the meter control

switches and select “Vehicle Settings”,
then press

Press

of the meter control

switches and select

, then press

Press

of the meter control

switches and select “RSA”, then press

■

Automatic turn-off of RSA sign display

In the following situations, a displayed

speed limit sign and/or do not enter sign will

stop being displayed automatically:

●

No sign has been recognized for a cer-

tain distance.

●

The road changes due to a left or right

turn, etc.

In the following situations, stop and yield

signs will stop being displayed automati-

cally:

●

The system determines that your vehicle

has passed the sign.

●

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.

Supported types of road signs

Speed limit

US Night speed limit

Do Not Enter

Stop

Yield

Notification function

261

4-5. Using the driving support systems

Driving

●

The sign is dirty, faded, tilted or bent.

●

The contrast of electronic sign is low.

●

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.

●

If a sign not appropriate for the currently

traveled lane, but the sign exists directly

after a freeway branches, or in an adja-

cent lane just before merging.

●

Stickers are attached to the rear of the

preceding vehicle.

●

A sign resembling a system compatible

sign is recognized.

●

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.

●

The front of the vehicle is raised or low-

ered due to the carried load.

●

The surrounding brightness is not suffi-

cient or changes suddenly.

●

When a sign intended for trucks, etc. is

recognized.

●

The map data is outdated.

●

The navigation system is not operating.

●

When driving in an area where

Advanced Drive operation is not possi-

ble. (if equipped)

●

The speed information displayed on the

meter and on the navigation system may

be different due to the navigation system

using map data.

■

Speed limit sign display

If the power switch was last turned off while

a speed limit sign was displayed on the

multi-information display, the same sign dis-

plays again when the power switch is turned

to ON mode.

■

If “RSA Malfunction Visit Your Dealer”

is shown

The system may be malfunctioning. Have

the vehicle inspected by your Lexus dealer.

■

Customization

Some functions can be customized. (Cus-

tomizable features:

262

4-5. Using the driving support systems

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



Vehicle-to-vehicle distance control
mode (

P.264)



Constant speed control mode
(



P.270)

■

Meter display

Multi-information display
Set speed
Indicators

■

Operation switches



Vehicles without Advanced Drive

Vehicle-to-vehicle distance switch
“+RES” switch
Cruise control main switch
Cancel switch
“-SET” switch



Vehicles with Advanced Drive

Vehicle-to-vehicle distance switch
“+RES” switch
Advanced Drive main switch
Cancel switch
“-SET” switch

Dynamic radar cruise con-
trol with full-speed range

Summary of functions

System Components

A
B
C

A
B
C
D

263

4-5. Using the driving support systems

Driving

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.273

• Conditions under which the vehi-

cle-to-vehicle distance control mode

may not function correctly:

P.273

●

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 solely on this system or

assuming the system ensures safety

while driving can lead to an accident,

resulting in death or serious injury.

●

Vehicles without Advanced Drive:

Switch the dynamic radar cruise con-

trol with full-speed range setting to 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 necessary for driver to pay close

attention to the vehicle’s surroundings.

●

Assisting the driver to judge proper

following distance

The dynamic radar cruise control with

full-speed range determines whether the

following distance between the driver’s

own vehicle and a designated vehicle

traveling ahead is within a set range. It is

not capable of making any other type of

judgement. Therefore, it is absolutely

necessary for the driver to remain vigi-

lant and to determine whether or not

there is a possibility of danger in any

given situation.

●

Assisting the driver to operate the

vehicle

The dynamic radar cruise control with

full-speed range does not include func-

tions which will prevent or avoid colli-

sions with vehicles ahead of your vehicle.

Therefore, if there is ever any possibility

of danger, the driver must take immedi-

ate and direct control of the vehicle and

act appropriately in order to ensure the

safety of all involved.

264

4-5. Using the driving support systems

This mode employs a radar to detect the presence of vehicles up to approximately

WARNING

■

Situations unsuitable for dynamic

radar cruise control with full-speed

range

Do not use dynamic radar cruise control

with full-speed range in any of the follow-

ing situations. Doing so may result in

inappropriate speed control and could

cause an accident resulting in death or

serious injury.

●

Roads where there are pedestrians,

cyclists, etc.

●

In heavy traffic

●

On roads with sharp bends

●

On winding roads

●

On slippery roads, such as those cov-

ered with rain, ice or snow

●

On steep downhills, or where there

are sudden changes between sharp up

and down gradients

Vehicle speed may exceed the set

speed when driving down a steep hill.

●

At entrances to freeways and highways

●

When weather conditions are bad

enough that they may prevent the sen-

sors from detecting correctly (fog,

snow, sandstorm, heavy rain, etc.)

●

When there is rain, snow, etc. on the

front surface of the radar or front cam-

era

●

In traffic conditions that require fre-

quent repeated acceleration and

deceleration

●

During emergency towing

●

When an approach warning buzzer is

heard often

Driving in vehicle-to-vehicle distance control mode

265

4-5. Using the driving support systems

Driving

328 ft. (100 m) ahead, determines the current vehicle-to-vehicle following dis-
tance, and operates to maintain a suitable following distance from the vehicle
ahead. The desired vehicle-to-vehicle distance can also be set by operating the
vehicle-to-vehicle distance switch.

When driving on downhill slopes, the vehicle-to-vehicle distance may become shorter.

Example of constant speed cruising
When there are no vehicles ahead

The vehicle travels at the speed set by the driver.

Example of deceleration cruising and follow-up cruising
When a preceding vehicle driving slower than the set speed appears

When a vehicle is detected running ahead of you, the system automatically decelerates
your vehicle. When a greater reduction in vehicle speed is necessary, the system applies
the brakes (the stop lights will come on at this time). The system will respond to changes in
the speed of the vehicle ahead in order to maintain the vehicle-to-vehicle distance set by
the driver. Approach warning warns you when the system cannot decelerate sufficiently to
prevent your vehicle from closing in on the vehicle ahead.
When the vehicle ahead of you stops, your vehicle will also stop (vehicle is stopped by sys-
tem control). After the vehicle ahead starts off, pressing the “+RES” switch or depressing
the accelerator pedal (start-off operation) will resume follow-up cruising. If the start-off
operation is not performed, system control continues to keep your vehicle stopped.
When the turn signal lever is operated and your vehicle moves to an overtaking lane while
driving at 50 mph (80 km/h) or more, the vehicle will accelerate to help to overtake a
passing vehicle.
The system’s identification of what is an overtaking lane may be determined solely based on
the location of the steering wheel in the vehicle (left side driver position versus right side
driver position.) If the vehicle is driven to a region where the overtaking lane is on a different
side from where the vehicle is normally driven, the vehicle may accelerate when the turn
signal lever is operated in the opposite direction to the overtaking lane (e.g., if the driver

266

4-5. Using the driving support systems

normally operates the vehicle in a region where the overtaking lane is to the right but then
drives to a region where the overtaking lane is to the left, the vehicle may accelerate when
the right turn signal is activated).

Example of acceleration
When there are no longer any preceding vehicles driving slower than the set
speed

The system accelerates until the set speed is reached. The system then returns to constant
speed cruising.



Vehicles without Advanced Drive

Press the cruise control main switch
to activate the cruise control.

Dynamic radar cruise control indicator will

come on and a message will be displayed

on the multi-information display. Press the

switch again to deactivate the cruise con-

trol.
If the cruise control main switch is pressed

and held for 1.5 seconds or more, the sys-

tem turns on in constant speed control

mode. (

P.270)

Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 20 mph [30 km/h])
and press the “-SET” switch to set
the speed.

Cruise control “SET” indicator will come

on.

The vehicle speed at the moment the

switch is released becomes the set speed.



Vehicles with Advanced Drive

Check that the dynamic radar
cruise control indicator is illumi-
nated.

Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 20 mph [30 km/h])
and press the “-SET” switch or
Advanced Drive main switch to set
the speed.

Cruise control “SET” indicator will come

Setting the vehicle speed (vehi-
cle-to-vehicle distance control
mode)

267

4-5. Using the driving support systems

Driving

on.
The vehicle speed at the moment the

switch is released becomes the set speed.

Also, LTA (Lane Tracing Assist) will turn on.
If the use conditions of the Advanced Drive

are met, it will operate.



Adjusting the set speed by the
switch

To change the set speed, press the
“+RES” or “-SET” switch until the
desired set speed is displayed.

Increases the speed (Except when
the vehicle has been stopped by
system control in vehicle-to-vehi-
cle distance control mode)

Decreases the speed

Fine adjustment: Press the switch.
Large adjustment: Press and hold the
switch to change the speed, and release
when the desired speed is reached.

In the vehicle-to-vehicle distance con-
trol mode, the set speed will be
increased or decreased as follows:
• For the U.S. mainland, Hawaii

Fine adjustment: By 1 mph (1.6 km/h)

or 1

km/h (0.6mph)

each time the switch is

pressed
Large adjustment: Increases or decreases
in 1mph (1.6 km/h)

or 1 km/h (0.6 mph)

increments for as long as the switch is held

• For Canada and Puerto Rico

Fine adjustment: By 1 mph (1.6 km/h)

or 1

km/h (0.6mph)

each time the switch is

pressed
Large adjustment: Increases or decreases
in 5 mph (8 km/h)

or 5 km/h (3.1 mph)

increments for as long as the switch is held

In the constant speed control mode
(

P.270), the set speed will be

increased or decreased as follows:

Fine adjustment: By 1 mph (1.6 km/h)

or 1

km/h (0.6 mph)

each time the switch is

pressed
Large adjustment: The speed will continue
to change while the switch is held.

: When the set speed is shown in “MPH”

: When the set speed is shown in “km/h”



Increasing the set speed by the
accelerator pedal

Accelerate with accelerator pedal
operation to the desired vehicle
speed

Press the “-SET” switch

Adjusting the set speed

268

4-5. Using the driving support systems

Pressing the switch changes the vehi-
cle-to-vehicle distance as follows:

Long

Medium

Short

If a vehicle is running ahead of you, the pre-
ceding vehicle mark

will also be dis-

played.

Select a distance from the table below.
Note that the distances shown corre-
spond to a vehicle speed of 50 mph
(80 km/h). Vehicle-to-vehicle distance
increases/decreases in accordance
with vehicle speed. When the vehicle is
stopped by system control, the vehicle
stops at a certain vehicle-to-vehicle
distance depending on the situation.

After the vehicle ahead of you starts
off, press the “+RES” switch.
Your vehicle will also resume follow-up
cruising if the accelerator pedal is
depressed after the vehicle ahead of
you starts off.

Changing the vehicle-to-vehicle
distance (vehicle-to-vehicle dis-
tance control mode)

Vehicle-to-vehicle distance set-
tings (vehicle-to-vehicle dis-
tance control mode)

Distance

options

Vehicle-to-vehicle dis-

tance

Long

Approximately 160 ft. (50

Medium

Approximately 130 ft. (40

Short

Approximately 100 ft. (30

Resuming follow-up cruising
when the vehicle has been
stopped by system control (vehi-
cle-to-vehicle distance control
mode)

269

4-5. Using the driving support systems

Driving

Pressing the cancel switch cancels
the speed control.

The speed control is also canceled when
the brake pedal is depressed. (When the
vehicle has been stopped by system con-
trol, depressing the brake pedal does not
cancel the setting.)

Pressing the “+RES” switch
resumes the cruise control and
returns vehicle speed to the set
speed.

When your vehicle is too close to a
vehicle ahead, and sufficient automatic
deceleration via the cruise control is
not possible, the display will flash and
the buzzer will sound to alert the driver.
An example of this would be if another
driver cuts in front of you while you are
following a vehicle. Depress the brake
pedal to ensure an appropriate vehi-
cle-to-vehicle distance.

■

Warnings may not occur when

In the following instances, warnings
may not occur even when the vehi-
cle-to-vehicle distance is small.



When the speed of the preceding
vehicle matches or exceeds your
vehicle speed



When the preceding vehicle is trav-
eling at an extremely slow speed



Immediately after the cruise control
speed was set



When depressing the accelerator
pedal

While driving in vehicle-to-vehicle dis-
tance control mode, this function will
reduce the vehicle speed, if it is deter-
mined to be necessary.

■

Function operation

When the steering wheel begins to be
turned, the vehicle speed will begin
being reduced. When the steering
wheel is returned to the center posi-
tion, the vehicle speed reduction will
end.
Depending on the situation, the vehicle
speed will then return to the vehi-

Canceling and resuming the
speed control

Approach warning (vehi-
cle-to-vehicle distance control
mode)

Curve speed reduction function

270

4-5. Using the driving support systems

cle-to-vehicle distance control mode
set speed.
In situations where vehicle-to-vehicle
distance control needs to operate,
such as when a preceding vehicle cuts
in front of your vehicle, the curve speed
reduction function will be canceled.

■

Operation display

Displayed when the vehicle speed is
being reduced.

When the vehicle speed reduction ends,
the display will disappear.

■

Changing the settings of the curve
speed reduction function

The curve speed reduction function
can be enabled/disabled and the vehi-
cle speed reduction strength can be
adjusted on

(



P.84) of the

multi-information display.

The setting will change each time the

meter control switch is pressed.

When constant speed control mode is
selected, your vehicle will maintain a
set speed without controlling the vehi-
cle-to-vehicle distance. Select this

mode only when vehicle-to-vehicle dis-
tance control mode does not function
correctly due to a dirty radar, etc.



Vehicles without Advanced Drive

With the cruise control off, press
and hold the cruise control main
switch for 1.5 seconds or more.

Immediately after the switch is pressed, the

dynamic radar cruise control indicator will

come on. Afterwards, it switches to the

cruise control indicator.
Switching to constant speed control mode

is only possible when operating the switch

with the cruise control off.

Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 20 mph [30 km/h])
and press the “-SET” switch to set
the speed.

Cruise control “SET” indicator will come

on.
The vehicle speed at the moment the

switch is released becomes the set speed.
Adjusting the speed setting:



P.267

Canceling and resuming the speed setting:

Selecting constant speed con-
trol mode

271

4-5. Using the driving support systems

Driving

P.269



Vehicles with Advanced Drive

Check that the dynamic radar
cruise control indicator is illumi-
nated and the cruise control “SET”
indicator is not illuminated.

Press and hold the cancel switch for
1.5 seconds or more.

The dynamic radar cruise control indicator

will turn off and the cruise control indicator

will illuminate.
If the cancel switch is pressed and held for

1.5 seconds or more again, the radar cruise

control indicator will illuminate and the

mode will change to vehicle-to-vehicle dis-

tance control mode.

Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 20 mph [30 km/h])
and press the “-SET” switch to set
the speed.

Cruise control “SET” indicator will come

on.
The vehicle speed at the moment the

switch is released becomes the set speed.
Adjusting the speed setting:



P.267

Canceling and resuming the speed setting:



P.269

■

Dynamic radar cruise control with

full-speed range can be set when

●

The shift position is in D.

●

The desired set speed can be set when

the vehicle speed is approximately 20

mph (30 km/h) or more.

(However, when the vehicle speed is set

while driving at below approximately 20

mph [30 km/h], the set speed will be set

to approximately 20 mph [30 km/h].)

272

4-5. Using the driving support systems

■

Accelerating after setting the vehicle

speed

The vehicle can accelerate by operating the

accelerator pedal. After accelerating, the

set speed resumes. However, during vehi-

cle-to-vehicle distance control mode, the

vehicle speed may decrease below the set

speed in order to maintain the distance to

the preceding vehicle.

■

When the vehicle stops while follow-up

cruising

●

Pressing the “+RES” switch while the

vehicle ahead stops will resume follow-up

cruising if the vehicle ahead starts off

within approximately 3 seconds after the

switch is pressed.

●

If the vehicle ahead starts off within 3 sec-

onds after your vehicle stops, follow-up

cruising will be resumed.

■

Automatic cancelation of vehi-

cle-to-vehicle distance control mode

Vehicle-to-vehicle distance control mode is

automatically canceled in the following situ-

ations.

●

VSC is activated.

●

TRAC is activated for a period of time.

●

When the VSC or TRAC system is

turned off.

●

The sensor cannot detect correctly

because it is covered in some way.

●

When the brake control or output restric-

tion control of a driving support system

operates. (For example: Pre-Collision

System, Drive-Start Control)

●

The parking brake is operated.

●

The vehicle is stopped by system control

on a steep incline.

●

The following are detected when the

vehicle has been stopped by system con-

trol:

• The driver is not wearing a seat belt.

• The driver’s door is opened.

• The vehicle has been stopped for about 3

minutes.

If vehicle-to-vehicle distance control mode

is automatically canceled for any reasons

other than the above, there may be a mal-

function in the system. Contact your Lexus

dealer.

■

Automatic cancelation of constant

speed control mode

Constant speed control mode is automati-

cally canceled in the following situations:

●

Actual vehicle speed is more than

approximately 10 mph (16 km/h) below

the set vehicle speed.

●

Actual vehicle speed falls below approxi-

mately 20 mph (30 km/h).

●

VSC is activated.

●

TRAC is activated for a period of time.

●

When the VSC or TRAC system is

turned off.

●

When the brake control or output restric-

tion control of a driving support system

operates. (For example: Pre-Collision

System, Drive-Start Control)

●

The parking brake is operated.

If constant speed control mode is automati-

cally canceled for any reasons other than

the above, there may be a malfunction in the

system. Contact your Lexus dealer.

■

Situations in which the curve speed

reduction function may not operate

In situations such as the following, the curve

speed reduction function may not operate:

●

When the vehicle is being driven around

a gentle curve

●

When the accelerator pedal is being

depressed

●

When the vehicle is being driven around

an extremely short curve

■

Brake operation

A brake operation sound may be heard and

the brake pedal response may change, but

these are not malfunctions.

■

Warning messages and buzzers for

dynamic radar cruise control with

full-speed range

Warning messages and buzzers are used to

indicate a system malfunction or to inform

the driver of the need for caution while driv-

ing. If a warning message is shown on the

multi-information display, read the message

and follow the instructions.(



P.203, 208,

273

4-5. Using the driving support systems

Driving

467)

■

When the sensor may not be correctly

detecting the vehicle ahead

In the case of the following and depending

on the conditions, operate the brake pedal

when deceleration of the system is insuffi-

cient or operate the accelerator pedal

when acceleration is required.

As the sensor may not be able to correctly

detect these types of vehicles, the approach

warning (

P.269) may not be activated.

●

Vehicles that cut in suddenly

●

Vehicles traveling at low speeds

●

Vehicles that are not moving in the same

lane

●

Vehicles with small rear ends (trailers

with no load on board, etc.)

●

Motorcycles traveling in the same lane

●

When water or snow thrown up by the

surrounding vehicles hinders the detect-

ing of the sensor

●

When your vehicle is pointing upwards

(caused by a heavy load in the luggage

compartment, etc.)

●

Preceding vehicle has an extremely high

ground clearance

■

Conditions under which the vehi-

cle-to-vehicle distance control mode

may not function correctly

In the case of the following conditions,

operate the brake pedal (or accelerator

pedal, depending on the situation) as nec-

essary.

As the sensor may not be able to correctly

detect vehicles ahead, the system may not

operate properly.

●

When the road curves or when the lanes

are narrow

●

When steering wheel operation or your

position in the lane is unstable

●

When the vehicle ahead of you deceler-

ates suddenly

●

When driving on a road surrounded by a

structure, such as in a tunnel or on a

bridge

●

While the vehicle speed is decreasing to

the set speed after the vehicle acceler-

ates by depressing the accelerator pedal

274

4-5. Using the driving support systems

■

Situations in which the curve speed

reduction function may not operate

properly

In situations such as the following, the curve

speed reduction function may not operate

properly:

●

When the vehicle is being driven around

a curve on an incline/decline

●

When the course of the vehicle differs

from the shape of the curve

●

When the vehicle speed is excessively

high when entering a curve

●

When the steering wheel is suddenly

operated

Meter control switches

Turning the Blind Spot Monitor on/off.

BSM (Blind Spot Monitor)

The Blind Spot Monitor is a system
that uses rear side radar sensors
installed on the inner side of the
rear bumper on the left and right
side to assist the driver in confirm-
ing safety when changing lanes.

WARNING

■

Cautions regarding the use of the sys-

tem

The driver is solely responsible for safe

driving. Always drive safely, taking care

to observe your surroundings.

The Blind Spot Monitor is a supplemen-

tary function which alerts the driver that a

vehicle is in a blind spot of the outside

rear view mirrors or is approaching rap-

idly from behind into a blind spot. Do not

overly rely on the Blind Spot Monitor. As

the function cannot judge if it is safe to

change lanes, over reliance could lead to

an accident resulting in death or serious

injury.

As the system may not function correctly

under certain conditions, the driver’s own

visual confirmation of safety is necessary.

System components

275

4-5. Using the driving support systems

Driving

Outside rear view mirror indicators

When a vehicle is detected in a blind spot
of the outside rear view mirrors or
approaching rapidly from behind into a
blind spot, the outside rear view mirror
indicator on the detected side will illumi-
nate. If the turn signal lever is operated
toward the detected side, the outside rear
view mirror indicator flashes.

■

Outside rear view mirror indicator visi-

bility

In strong sunlight, the outside rear view mir-

ror indicator may be difficult to see.

■

When “Blind Spot Monitor Unavailable”

is shown on the multi-information dis-

play

Ice, snow, mud, etc., may be attached to the

rear bumper around the sensors. (

P.275)

The system should return to normal opera-

tion after removing the ice, snow, mud, etc.

from the rear bumper. Additionally, the sen-

sors may not operate normally when driving

in extremely hot or cold environments.

■

Customization

Some functions can be customized.

(



WARNING

■

To ensure the system can operate

properly

Blind Spot Monitor sensors are installed

behind the left and right sides of the rear

bumper respectively. Observe the fol-

lowing to ensure the Blind Spot Monitor

can operate correctly.

●

Keep the sensors and the surrounding

areas on the rear bumper clean at all

times.

If a sensor or its surrounding area on the
rear bumper is dirty or covered with
snow, the Blind Spot Monitor may not
operate and a warning message
(

P.275) will be displayed. In this situa-

tion, clear off the dirt or snow and drive
the vehicle with the operation conditions
of the BSM function (

P.277) satisfied

for approximately 10 minutes. If the
warning message does not disappear,
have the vehicle inspected by your Lexus
dealer.

●

Do not attach accessories, stickers

(including transparent stickers), alumi-

num tape, etc. to a sensor or its sur-

rounding area on the rear bumper.

●

Do not subject a sensor or its sur-

rounding area on the rear bumper to a

strong impact.

If a sensor is moved even slightly off

position, the system may malfunction

and vehicles may not be detected cor-

rectly.

In the following situations, have your

vehicle inspected by your Lexus

dealer.

• A sensor or its surrounding area is

subject to a strong impact.

• If the surrounding area of a sensor is

scratched or dented, or part of them

has become disconnected.

●

Do not disassemble the sensor.

●

Do not modify the sensor or surround-

ing area on the rear bumper.

276

4-5. Using the driving support systems

Use the meter control switches to turn

on/off the function.

Press

to select

Press

to select

and

then press

When the BSM function is disabled, the

BSM OFF indicator illuminates. (Each time

the power switch is turned off then

changed to ON mode, the Blind Spot

Monitor will be enabled automatically.)

■

Vehicles that can be detected by the Blind Spot Monitor

The Blind Spot Monitor uses rear side radar sensors to detect the following vehi-
cles traveling in adjacent lanes and advises the driver of the presence of such vehi-
cles via the indicators on the outside rear view mirrors.

Vehicles that are traveling in areas that are not visible using the outside rear
view mirrors (the blind spots)
Vehicles that are approaching rapidly from behind in areas that are not visible
using the outside rear view mirrors (the blind spots)

■

The Blind Spot Monitor detection areas

The areas that vehicles can be detected in are outlined below.

WARNING

●

If a sensor or the rear bumper needs to

be removed/installed or replaced,

contact your Lexus dealer.

●

Do not paint the rear bumper any

color other than an official Lexus color.

Turning the Blind Spot Monitor
on/off

Blind Spot Monitor operation

277

4-5. Using the driving support systems

Driving

The range of each detection area is:

Approximately 1.6 ft. (0.5 m) to 11.5 ft. (3.5 m) from either side of the vehicle

Approximately 3.3 ft. (1 m) forward of the rear bumper
Approximately 9.8 ft. (3 m) from the rear bumper

Approximately 9.8 ft. (3 m) to 197 ft. (60 m) from the rear bumper

: The area between the side of the vehicle and 1.6 ft. (0.5 m) from the side of the vehicle

cannot be detected.

: The greater the difference in speed between your vehicle and the detected vehicle is,

the farther away the vehicle will be detected, causing the outside rear view mirror indi-
cator to illuminate or flash.

■

The Blind Spot Monitor is operational

when

The Blind Spot Monitor is operational when

all of the following conditions are met:

●

The Blind Spot Monitor is on.

●

The shift position is in a position other

than R.

●

The vehicle speed is greater than approx-

imately 10 mph (16 km/h).

■

The Blind Spot Monitor will detect a

vehicle when

The Blind Spot Monitor will detect a vehicle

present in the detection area in the follow-

ing situations:

●

A vehicle in an adjacent lane overtakes

your vehicle.

●

You overtake a vehicle in an adjacent lane

slowly.

●

Another vehicle enters the detection

area when it changes lanes.

■

Conditions under which the system will

not detect a vehicle

The Blind Spot Monitor is not designed to

detect the following types of vehicles and/or

objects:

●

Small motorcycles, bicycles, pedestrians,
etc.

●

Vehicles traveling in the opposite direc-

tion

●

Guardrails, walls, signs, parked vehicles
and similar stationary objects

●

Following vehicles that are in the same
lane

●

Vehicles traveling 2 lanes away from your
vehicle

●

Vehicles which are being overtaken rap-
idly by your vehicle

: Depending on the conditions, detection

of a vehicle and/or object may occur.

A
B
C
D

278

4-5. Using the driving support systems

■

Conditions under which the system may

not function correctly

●

The Blind Spot Monitor may not detect

vehicles correctly in the following situa-

tions:

• When the sensor is misaligned due to a

strong impact to the sensor or its sur-

rounding area

• When mud, snow, ice, a sticker, etc. is

covering the sensor or surrounding area

on the rear bumper

• When driving on a road surface that is

wet with standing water during bad

weather, such as heavy rain, snow, or fog

• When multiple vehicles are approaching

with only a small gap between each vehi-

cle

• When the distance between your vehicle

and a following vehicle is short

• When there is a significant difference in

speed between your vehicle and the vehi-

cle that enters the detection area

• When the difference in speed between

your vehicle and another vehicle is

changing

• When a vehicle enters a detection area

traveling at about the same speed as your

vehicle

• As your vehicle starts from a stop, a vehi-

cle remains in the detection area

• When driving up and down consecutive

steep inclines, such as hills, dips in the

road, etc.

• When driving on roads with sharp bends,

consecutive curves, or uneven surfaces

• When vehicle lanes are wide, or when

driving on the edge of a lane, and the

vehicle in an adjacent lane is far away

from your vehicle

• When an accessory (such as a bicycle

carrier) is installed to the rear of the vehi-

cle

• When there is a significant difference in

height between your vehicle and the

vehicle that enters the detection area

• Immediately after the Blind Spot Monitor

is turned on

●

Instances of the Blind Spot Monitor

unnecessarily detecting a vehicle and/or

object may increase in the following situ-

ations:

• When the sensor is misaligned due to a

strong impact to the sensor or its sur-

rounding area

• When the distance between your vehicle

and a guardrail, wall, etc. that enters the

detection area is short

• When driving up and down consecutive

steep inclines, such as hills, dips in the

road, etc.

• When vehicle lanes are narrow, or when

driving on the edge of a lane, and a vehi-

cle traveling in a lane other than the adja-

cent lanes enters the detection area

• When driving on roads with sharp bends,

consecutive curves, or uneven surfaces

• When the tires are slipping or spinning

• When the distance between your vehicle

and a following vehicle is short

• When an accessory (such as a bicycle

carrier) is installed to the rear of the vehi-

cle

279

4-5. Using the driving support systems

Driving

■

Intuitive parking assist

Ultrasonic sensors are used to detect
static objects in the detection area
when driving at a low speed or backing
up. (

P.280)

■

RCTA (Rear Cross Traffic Alert)
function

Radar sensors are used to detect
approaching vehicles in the detection
areas behind the vehicle when backing
up. (

P.289)

■

RCD (Rear camera detection)
function

A rear camera sensor is used to detect
pedestrians in the detection area
behind the vehicle when backing up.
(



P.293)

■

Adjusting the buzzer volume

The buzzer volume can be adjusted on
the multi-information display. The vol-
ume of buzzers for the intuitive parking
assist, RCTA function and RCD func-
tion will be adjusted simultaneously.
Use the meter control switches to
change settings. (