Lexus UX250H (2024 year). Manual in english - page 7

P.218)

: The function operates even if the vehicle

speed is less than approximately 32 mph
(50 km/h) when the lane centering
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 departure
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

operating.

• 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 “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.218)

●

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-

cle is small, such as a motorcycle).

• The dynamic radar cruise control with

full-speed range is operating in vehicle-

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.218)

• 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

operating.

• TRAC or VSC is not turned off.

• Hands off steering wheel warning is not

displayed. (

P.217)

• 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 lon-

ger met, a function may be temporarily

canceled. However, when the operation

conditions are met again, operation of

the function is automatically restored.

(



P.215)

●

If the operation conditions (



P.215) 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 vibrating
the steering wheel instead of sounding
the buzzer.

217

4-5. Using the driving support systems

Driving

■

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.

●

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

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.

If the driver continues to keep their hands
off of the steering wheel, the buzzer sounds,
the driver is warned and the function is tem-
porarily canceled. This warning also oper-
ates in the same way when the driver
continuously operates the steering wheel
only a small amount.
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.

Depending on the vehicle condition and
road conditions, the warning may not oper-
ate.

●

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 operat-

ing.

If the driver continues to keep their hands
off of the steering wheel and the steering
wheel assist is operating, the buzzer sounds
and the driver is warned. Each time the
buzzer sounds, the continuing time of the
buzzer becomes longer.
The buzzer also sounds even if the alert
type is set to

■

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.

218

4-5. Using the driving support systems

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 system
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.
(Customizable features:



P.433)

: If equipped

When the front camera recognizes a
sign and/or information of a sign is

RSA (Road Sign Assist)

The RSA system recognizes spe-
cific road signs using the front cam-
era 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,
performing prohibited actions, etc.
according to the recognized road
signs, it notifies the driver through a
visual notification and notification
buzzer.

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

219

4-5. Using the driving support systems

Driving

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
recognized, they will be displayed in an
overlapping stack under the current
speed limit sign.

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.

: Speed limit

: Do Not Enter

: Stop

: Yield

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.

Supported types of road signs

Notification function

220

4-5. Using the driving support systems

■

Setting procedure

Press

of the meter control

switches and select

Press

of the meter control

switches and select “Vehicle Settings”,
then press “OK”

Press

of the meter control

switches and select

, then press

“OK”

Press

of the meter control

switches and select “RSA”, then press
“OK”

■

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.

●

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 navigation system map data is out-

dated.

●

The navigation system is not operating.

●

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.

■

If “RSA Malfunction Visit Your Dealer”

is shown

The system may be malfunctioning. Have

221

4-5. Using the driving support systems

Driving

the vehicle inspected by your Lexus dealer.

■

Customization

Some functions can be customized. (Cus-

tomizable features:

P.433)

■

Meter display

Multi-information display

Set speed

Indicators

Dynamic radar cruise con-
trol with full-speed range

In vehicle-to-vehicle distance con-
trol mode, the vehicle automati-
cally accelerates, decelerates and
stops to match the speed changes
of the preceding vehicle even if the
accelerator pedal is not depressed.
In constant speed control mode,
the vehicle runs at a fixed speed.

Use the dynamic radar cruise con-
trol with full-speed range on free-
ways and highways.



Vehicle-to-vehicle distance con-
trol mode (

P.224)



Constant speed control mode
(



P.229)

System components

A
B
C

222

4-5. Using the driving support systems

■

Operation switches

Vehicle-to-vehicle distance switch

“+RES” switch

Cruise control main switch

Cancel switch

“-SET” switch

WARNING

■

Before using dynamic radar cruise

control with full-speed range

●

Driving safely is the sole responsibility

of the driver. Do not rely solely on the

system, and drive safely by always pay-

ing careful attention to your surround-

ings.

●

The dynamic radar cruise control with

full-speed range provides driving

assistance to reduce the driver’s bur-

den. However, there are limitations to

the assistance provided.

Read the following conditions carefully.
Do not overly rely on this system and
always drive carefully.
• When the sensor may not be correctly

detecting the vehicle ahead:



P.230

• Conditions under which the vehicle-

to-vehicle distance control mode may

not function correctly:

P.231

●

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.

●

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.

223

4-5. Using the driving support systems

Driving

WARNING

●

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.

■

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 high-

ways

●

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

224

4-5. Using the driving support systems

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

Driving in vehicle-to-vehicle distance control mode

225

4-5. Using the driving support systems

Driving

driver position.) If the vehicle is driven to a region where the overtaking lane is on a differ-
ent 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 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.

Press the cruise control main
switch to activate the cruise con-
trol.

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.229)

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 set speed by the
switch

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

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

Adjusting the set speed

226

4-5. Using the driving support systems

Increases the speed (Except when
the vehicle has been stopped by
system control in vehicle-to-vehicle
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 and 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 1 mph (1.6 km/h)

or 1 km/h (0.6 mph)

increments for as long as the switch is held



Except for the U.S. mainland and
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 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.229), 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

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.

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

227

4-5. Using the driving support systems

Driving

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 dis-
tance increases/decreases in accor-
dance 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.

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

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

Distance options

Vehicle-to-vehicle

distance

Long

Approximately 160

ft. (50 m)

Medium

Approximately 130

ft. (40 m)

Short

Approximately 100

ft. (30 m)

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

Canceling and resuming the
speed control

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

228

4-5. Using the driving support systems

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 appropri-
ate vehicle-to-vehicle distance.

■

Warnings may not occur when

In the following instances, warnings
may not occur even when the vehicle-
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 vehicle-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 can-
celed.

■

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.89) of the multi-

information display.

The setting will change each time the “OK”
meter control switch is pressed.

Curve speed reduction function

229

4-5. Using the driving support systems

Driving

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
distance control mode does not func-
tion correctly due to a dirty radar, etc.

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.225

Canceling and resuming the speed setting:



P.227

■

Dynamic radar cruise control with full-

speed range can be set when

●

The shift lever 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].)

■

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 vehicle-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.

Selecting constant speed con-
trol mode

230

4-5. Using the driving support systems

●

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

restriction 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

restriction 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.227) may not be activated.

P.198, 387)

■

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 (



●

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.)

231

4-5. Using the driving support systems

Driving

●

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 vehicle-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

■

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

232

4-5. Using the driving support systems

: If equipped

Multi-information display

The Blind Spot Monitor can be turned

on/off.

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.

BSM indicator

Illuminates when the Blind Spot Monitor is
enabled

■

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.232) The system should return to nor-

mal operation after removing the ice, snow,

mud, etc. from the rear bumper. Addition-

ally, the sensors may not operate normally

when driving in extremely hot or cold envi-

ronments.

■

Customization

Some functions can be customized. (Cus-

tomizable features:



P.434)

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

system

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 nec-

essary.

System components

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.

233

4-5. Using the driving support systems

Driving

Use the meter control switches to turn
on/off the function (

P.89).

Press

to select

Press

to select

and

then press “OK”.

WARNING

●

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.232) 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.235) satisfied

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

●

Do not attach stickers to the sensor or

surrounding 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 posi-
tion, the system may malfunction and
vehicles may not be detected correctly.
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.

●

Do not paint the rear bumper any

color other than an official Lexus color.

Turning the Blind Spot Monitor
on/off

234

4-5. Using the driving support systems

■

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.

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.

Blind Spot Monitor operation

A
B
C
D

235

4-5. Using the driving support systems

Driving

: 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 lever is in a position other than R.

●

The vehicle speed is greater than

approximately 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 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.

■

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

vehicle 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

236

4-5. Using the driving support systems

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

: If equipped

■

Intuitive parking assist

P.237

■

RCTA (Rear Cross Traffic Alert)
function (if equipped)

P.244

■

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 and RCTA function will be
adjusted simultaneously.
Use the meter control switches to
change settings. (

Press

to select

Press

to select “PKSA”

and then press “OK”.

PKSA (Parking Support
Alert)

The Parking Support Alert system
consists of the following functions
that operate when driving at a low
speed or backing up, such as when
parking. When the system deter-
mines that the possibility of a colli-
sion with a detected object, such as
a wall is high, a warning operates to
urge the driver to take evasive
action.

PKSA (Parking Support Alert)
system

Setting the buzzer volume

237

4-5. Using the driving support systems

Driving

Press

to select

and

then press “OK”.

Each time the switch is pressed, the vol-

ume level will change between 1, 2, and 3.

■

Muting a buzzer temporarily

A mute button will be displayed on the
multi-information display or Center
Display when an object is detected. To
mute the buzzer, press “OK” or

The buzzers for the intuitive parking
assist and RCTA function will be muted
simultaneously.
Mute will be canceled automatically in
the following situations:



When the shift lever is changed.



When there is a malfunction in a
sensor or the system is temporarily
unavailable.



When the operating function is dis-
abled manually.



When the power switch is turned
off.

: If equipped

■

Types of sensors

Front corner sensors

Front center sensors

Rear corner sensors

Rear center sensors

■

Display

When the sensors detect an object,
such as a wall, a graphic is shown on
the multi-information display, head-up
display (if equipped) and Center Dis-
play depending on the position and dis-
tance to the object.

Intuitive parking assist

The distance from your vehicle to
objects, such as a wall, when paral-
lel parking or maneuvering into a
garage is measured by the sensors
and communicated via the multi-
information display, head-up dis-
play (if equipped), Center Display
and a buzzer. Always check the sur-
rounding area when using this sys-
tem.

System components

A
B
C
D

238

4-5. Using the driving support systems



Multi-information display and head-
up display

Front corner sensor detection

Front center sensor detection

Rear corner sensor detection

Rear center sensor detection



Center Display

A simplified image is displayed on the
Center Display when an object is detected.
• When the shift lever is in R
A graphic is shown when the Lexus park-
ing assist monitor is displayed.

• When the shift lever is in N, S or D

Use the meter control switches to
enable/disable the intuitive parking
assist. (

P.90)

Press

to select

Press

to select “PKSA”

and then press “OK”.

Press

to select

and

then press “OK”.

When the intuitive parking assist func-
tion is disabled, the intuitive parking
assist OFF indicator (

P.76) illumi-

nates on the multi-information display.
When the intuitive parking assist func-
tion is turned on or off, operation of the
intuitive parking assist function contin-
ues in the same condition the next time
the hybrid system is started.

Turning intuitive parking assist
on/off

WARNING

■

Cautions regarding the use of the

system

There is a limit to the degree of recogni-

tion accuracy and control performance

that this system can provide, do not

overly rely on this system. The driver is

always responsible for paying attention

to the vehicle’s surroundings and driving

safely.

239

4-5. Using the driving support systems

Driving

■

The system can be operated when

●

The power switch is in ON.

●

Intuitive parking assist function is on.

●

The vehicle speed is less than about 6

mph (10 km/h).

●

The shift lever is in a position other than P.

■

Setting the buzzer volume

The buzzer volume can be adjusted on the

multi-information display. (

P.236)

■

If “Parking Assist Unavailable Clean

Parking Assist Sensor” is displayed on

the multi-information display

A sensor may be covered with ice, snow,

dirt, etc. Remove the ice, snow, dirt, etc.,

from the sensor to return the system to nor-

mal.
Also, due to ice forming on a sensor at low

temperatures, a warning message may be

displayed or the sensor may not be able to

detect an object. Once the ice melts, the

system will return to normal.

■

If “Parking Assist Unavailable” is dis-

played on the multi-information display

●

Water may be continuously flowing over

the sensor surface, such as in a heavy

rain. When the system determines that it

is normal, the system will return to nor-

mal.

●

Initialization may not have been per-

formed after a 12-volt battery terminal

was disconnected and reconnected. Ini-

tialize the system. (

P.239)

If this message continues to be displayed
even after initialization, have the vehicle
inspected by your Lexus dealer.

■

If a 12-volt battery terminal has been

disconnected and reconnected

The system needs to be initialized. To initial-

ize the system, drive the vehicle straight

ahead for 5 seconds or more at a speed of

WARNING

■

To ensure the system can operate

properly

Observe the following precautions.

Failing to do so may result in the vehicle

being unable to be driven safely and pos-

sibly cause an accident.

●

Do not damage the sensors, and

always keep them clean.

●

Do not attach a sticker or install an

electronic component, such as a back-

lit license plate (especially fluorescent

type), fog lights, fender pole or wire-

less antenna near a radar sensor.

●

Do not subject the surrounding area of

the sensor to a strong impact. If sub-

jected to an impact, have the vehicle

inspected by your Lexus dealer. If the

front or rear bumper needs to be

removed/installed or replaced, con-

tact your Lexus dealer.

●

Do not modify, disassemble or paint

the sensors.

●

Do not attach a license plate cover.

●

Keep your tires properly inflated.

■

When to disable the function

In the following situations, disable the

function as it may operate even though

there is no possibility of a collision.

●

Failing to observe the warnings above.

●

A non-genuine Lexus suspension

(lowered suspension, etc.) is installed.

■

Notes when washing the vehicle

Do not apply intensive bursts of water or

steam to the sensor area.
Doing so may result in the sensor mal-

functioning.

●

When using a high pressure washer to

wash the vehicle, do not spray the sen-

sors directly, as doing so may cause a

sensor to malfunction.

●

When using steam to clean the vehi-

cle, do not direct steam too close to

the sensors as doing so may cause a

sensor to malfunction.

240

4-5. Using the driving support systems

approximately 22 mph (35 km/h) or more.

■

Sensor detection information

●

The sensor’s detection areas are limited

to the areas around the vehicle’s front

and rear bumpers.

●

The following situations may occur

during use.

• Depending on the shape of the object

and other factors, the detection distance

may shorten, or detection may be impos-

sible.

• There will be a short delay between

object detection and display. Even at low

speeds, there is a possibility that the

object will come within the sensor’s

detection areas before the display is

shown and the warning beep sounds.

• It might be difficult to hear the buzzer due

to the volume of the audio system or air

flow noise of the air conditioning system.

• It may be difficult to hear the buzzer if

buzzers for other systems are sounding.

■

Objects which the system may not prop-

erly detect

The shape of the object may prevent the

sensor from detecting it. Pay particular

attention to the following objects:

●

Wires, fences, ropes, etc.

●

Cotton, snow and other materials that

absorb sound waves

●

Sharply-angled objects

●

Low objects

●

Tall objects with upper sections project-

ing outwards in the direction of your vehi-

cle

People may not be detected if they are

wearing certain types of clothing.

■

Situations in which the system may not

operate properly

Certain vehicle conditions and the sur-

rounding environment may affect the ability

of a sensor to correctly detect objects. Par-

ticular instances where this may occur are

listed below.

●

There is dirt, snow or ice on a sensor.

(Cleaning the sensors will resolve this

problem.)

●

A sensor is frozen. (Thawing the area will

resolve this problem.) In especially cold

weather, if a sensor is frozen the sensor

display may be displayed abnormally, or

objects, such as a wall, may not be

detected.

●

When a sensor or the area around a sen-

sor is extremely hot or cold.

●

On an extremely bumpy road, on an

incline, on gravel, or on grass.

●

When vehicle horns, vehicle detectors,

motorcycle engines, air brakes of large

vehicles, the clearance sonar of other

vehicles or other devices which produce

ultrasonic waves are near the vehicle.

●

A sensor is coated with a sheet of spray

or heavy rain.

●

If objects draw too close to the sensor.

●

When a pedestrian is wearing clothing

that does not reflect ultrasonic waves (ex.

skirts with gathers or frills).

●

When objects that are not perpendicular

to the ground, not perpendicular to the

vehicle traveling direction, uneven, or

waving are in the detection range.

●

Strong wind is blowing.

●

When driving in inclement weather such

as fog, snow or a sandstorm.

●

When an object that cannot be detected

is between the vehicle and a detected

object.

●

If an object such as a vehicle, motorcycle,

bicycle or pedestrian cuts in front of the

vehicle or runs out from the side of the

vehicle.

●

If the orientation of a sensor has been

changed due to a collision or other

impact.

●

When equipment that may obstruct a

sensor is installed, such as a towing eye-

let, bumper protector (an additional trim

241

4-5. Using the driving support systems

Driving

strip, etc.), bicycle carrier, or snow plow.

●

If the front of the vehicle is raised or low-

ered due to the carried load.

●

If the vehicle cannot be driven in a stable

manner, such as when the vehicle has

been in an accident or is malfunctioning.

●

When tire chains, a compact spare tire or

an emergency tire puncture repair kit are

used.

■

Situations in which the system may

operate even if there is no possibility of a

collision

In some situations, such as the following, the

system may operate even though there is

no possibility of a collision.

●

When driving on a narrow road.

●

When driving toward a banner, flag, low-

hanging branch or boom barrier (such as

those used at railroad crossings, toll

gates and parking lots).

●

When there is a rut or hole in the surface

of the road.

●

When driving on a metal cover (grating),

such as those used for drainage ditches.

●

When driving up or down a steep slope.

●

If a sensor is hit by a large amount of

water, such as when driving on a flooded

road.

●

There is dirt, snow, water drops or ice on

a sensor. (Cleaning the sensors will

resolve this problem.)

●

A sensor is coated with a sheet of spray

or heavy rain.

●

When driving in inclement weather such

as fog, snow or a sandstorm.

●

When strong winds are blowing.

●

When vehicle horns, vehicle detectors,

motorcycle engines, air brakes of large

vehicles, the clearance sonar of other

vehicles or other devices which produce

ultrasonic waves are near the vehicle.

●

If the front of the vehicle is raised or low-

ered due to the carried load.

●

If the orientation of a sensor has been

changed due to a collision or other

impact.

●

The vehicle is approaching a tall or

curved curb.

●

Driving close to columns (H-shaped steel

beams, etc.) in multi-story parking

garages, construction sites, etc.

●

If the vehicle cannot be driven in a stable

manner, such as when the vehicle has

been in an accident or is malfunctioning.

●

On an extremely bumpy road, on an

incline, on gravel, or on grass.

●

When tire chains, a compact spare tire or

an emergency tire puncture repair kit are

used.

242

4-5. Using the driving support systems

■

Detection range of the sensors

Approximately 3.3 ft. (100 cm)

Approximately 4.9 ft. (150 cm)

Approximately 2.0 ft. (60 cm)

The diagram shows the detection range of
the sensors. Note that the sensors cannot
detect objects that are extremely close to
the vehicle.
The range of the sensors may change
depending on the shape of the object, etc.

■

Multi-information display, head-up display (if equipped) and Center Display

When an object is detected by a sensor, the approximate distance to the object will
be displayed on the multi-information display, Center Display, and head-up dis-
play. (As the distance to the object becomes short, the distance segments may
blink.)



Approximate distance to object: 4.9 ft. (150 cm) to 2.0 ft. (60 cm)

(Rear center

sensor)

: Automatic buzzer mute function is enabled. (



Approximate distance to object: 3.3 ft. (100 cm) to 2.0 ft. (60 cm)

(Front cen-

ter sensor)

Sensor detection display, object
distance

A
B
C

Multi-information display

Center Display

Head-up display

Multi-information display

Center Display

Head-up display

243

4-5. Using the driving support systems

Driving

: Automatic buzzer mute function is enabled. (



Approximate distance to object: 2.0 ft. (60 cm) to 1.5 ft. (45 cm)

: Automatic buzzer mute function is enabled. (



Approximate distance to object: 1.5 ft. (45 cm) to 1.0 ft. (30 cm)

: Automatic buzzer mute function is enabled. (



Approximate distance to object: 1.0 ft. (30 cm) to 0.5 ft. (15 cm)

: Automatic buzzer mute function is disabled. (

: The distance segments will blink slowly.



Approximate distance to object: Less than 0.5 ft. (15 cm)

: Automatic buzzer mute function is disabled. (

: The distance segments will blink rapidly.

Multi-information display

Center Display

Head-up display

Multi-information display

Center Display

Head-up display

Multi-information display

Center Display

Head-up display

Multi-information display

Center Display

Head-up display

244

4-5. Using the driving support systems

■

Buzzer operation and distance to
an object

A buzzer sounds when the sensors are
operating.



The buzzer beeps faster as the vehi-
cle approaches an object. When the
vehicle comes within the following
distance of the object, the buzzer
sounds continuously:

Approximately 1.0 ft. (30 cm)



When 2 or more objects are
detected simultaneously, the buzzer
sounds for the nearest object. If one
or more objects come within
approximately 1.0 ft. (30 cm) of the
vehicle, the buzzer will repeat a long
tone, followed by fast beeps.



Automatic buzzer mute function:
After a buzzer begins sounding, if
the distance between the vehicle
and the detected object does not
become shorter, the buzzer will be
muted automatically. (However, if
the distance between the vehicle
and object is 1.0 ft. [30 cm] or less,
this function will not operate.)

The buzzer sounds volume can be
adjusted. (



P.236)

: If equipped

RCTA (Rear Cross Traffic
Alert) function

The RCTA function uses the BSM
rear side radar sensors installed on
the inner side of the rear bumper.
This function is intended to assist
the driver in checking areas that
are not easily visible when backing
up.

WARNING

■

Cautions regarding the use of the

system

There is a limit to the degree of recogni-

tion accuracy and control performance

that this system can provide, do not

overly rely on this system. The driver is

always responsible for paying attention

to the vehicle’s surroundings and driving

safely. (

P.232)

■

To ensure the system can operate

properly

P.232

245

4-5. Using the driving support systems

Driving

Multi-information display

The RCTA function can be turned on/off.
When the RCTA function is disabled, the
RCTA OFF indicator illuminates.

Outside rear view mirror indicators

When a vehicle approaching from the right
or left at the rear of the vehicle is detected,
both outside rear view mirror indicators
will flash.

Center Display

If a vehicle approaching from the right or
left at the rear of the vehicle is detected,
the RCTA icon (

P.246) for the detected

side will be displayed on the Center Dis-
play. This illustration shows an example of a
vehicle approaching from both sides of the
vehicle.

RCTA buzzer

If a vehicle approaching from the right or
left at the rear of the vehicle is detected, a
buzzer will sound. The buzzer also sounds

for approximately 1 second immediately
after the RCTA function is turned on.

Use the meter control switches to
enable/disable the RCTA function.
(



Vehicles without the Intuitive park-
ing assist

Press

to select

Press

to select “RCTA”

and then press “OK”.

Press

to select “RCTA”

again and then press “OK”.

Each time “OK” is pressed, the RCTA

function will be enabled/disabled.



Vehicles with the Intuitive parking
assist

Press

to select

Press

to select “PKSA”

and then press “OK”.

Press

to select “RCTA”

and then press “OK”.

Each time the power switch is turned to

OFF then changed to ON, the RCTA

function will be enabled automatically.

■

Outside rear view mirror indicator visi-

bility

In strong sunlight, the outside rear view mir-

ror indicator may be difficult to see.

■

Hearing the RCTA buzzer

The RCTA buzzer may be difficult to hear

over loud noises, such as if the audio system

volume is high.

System components

Turning the RCTA function
on/off

246

4-5. Using the driving support systems

■

When “Rear Cross Traffic Alert

Unavailable” is shown on the multi-

information display

Ice, water, snow, mud, etc., may be attached

to the rear bumper around the sensors.

(



P.233) Remove the ice, snow, mud, etc.,

attached to the rear bumper around the

sensors to return the function to normal.
Additionally, the function may not operate

normally when used in extremely hot or

cold environments.

■

Rear side radar sensors

P.233

■

Operation of the RCTA function

The RCTA function uses rear side
radar sensors to detect vehicles
approaching from the right or left at
the rear of the vehicle and alerts the
driver of the presence of such vehicles
by flashing the outside rear view mirror
indicators and sounding a buzzer.

Approaching vehicles

Detection areas of approaching
vehicles

■

RCTA icon display

When a vehicle approaching from the
right or left at the rear of the vehicle is
detected, the following will be dis-
played on the Center Display.



Example (Lexus parking assist mon-
itor): Vehicles are approaching
from both sides of the vehicle

■

RCTA function detection areas

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

The buzzer can alert the driver of
faster vehicles approaching from far-
ther away.
Example:

■

The RCTA function is operational when

The RCTA function operates when all of the

following conditions are met:

●

The power switch is in ON.

RCTA function

A
B

Approaching vehi-

cle speed

Approximate

alert distance

34 mph (56 km/h)

(fast)

131 ft. (40 m)

5 mph (8 km/h)

(slow)

18 ft. (5.5 m)

247

4-5. Using the driving support systems

Driving

●

The RCTA function is on.

●

The shift lever is in R.

●

The vehicle speed is less than approxi-

mately 9 mph (15 km/h).

●

The approaching vehicle speed is

between approximately 5 mph (8 km/h)

and 34 mph (56 km/h).

■

Setting the buzzer volume

The buzzer volume can be adjusted on the

multi-information display.
Use the meter control switches to change

settings. (



P.90)



Vehicles without the Intuitive parking

assist

Press

to select

Press

to select “RCTA” and

then press “OK”.

Press

to select

and then

press “OK”.

Each time the switch is pressed, the volume

level will change between 1, 2 and 3.



Vehicles with the Intuitive parking assist

P.236

■

Muting a buzzer temporarily



Vehicles without the Intuitive parking

assist

A mute button will be displayed on the
multi-information display when an object is
detected. To mute the buzzer, press “OK”.

●

When the shift lever is changed.

●

When the vehicle speed exceeds a cer-

tain speed.

●

When the operating function is tempo-

rarily canceled.

●

When the operating function is disabled

manually.

●

When the power switch is turned off.



Vehicles with the Intuitive parking assist