Lexus TX350 (2024 year). Manual in english

282

4-5. Using the driving support systems

WARNING

●

Even if Traffic Jam Assist is operating

properly, the surrounding conditions

as recognized by the driver and

detected by the system may differ.

Therefore, it is necessary for the driver

to pay attention, assess risks, and

ensure safety. Over-reliance on this

system to drive the vehicle safely may

lead to an accident resulting in death

or serious injury.

●

While the Traffic Jam Assist function is

operating, as driver operation may

become necessary, the driver must

ensure they have clear visibility of their

surroundings.

●

In certain situations, a message urging

the driver to hold the steering wheel

may be displayed by the Traffic Jam

Assist function. In this case, hold the

steering wheel and drive the vehicle

manually to ensure safety.

●

The Traffic Jam Assist function cannot

detect the following objects. Operate

the steering wheel, accelerator pedal,

or brake pedal as necessary to avoid a

collision. As the function will not be

able to provide appropriate control,

using it may lead to an accident result-

ing in death or serious injury.

• Objects on the road surface

• Vehicles outside of a lane (such as on

the shoulder of the road)

• Potholes, cracks, ruts, or other road

damage

• Road construction zones

• Vehicles running in parallel with your

vehicle or nearby walls

• Animals

■

Situations in which Traffic Jam Assist

Function should not be used

Do not use Traffic Jam Assist Function in

situations such as the following. As the

system will not be able to provide appro-

priate control, using it may lead to an

accident resulting in death or serious

injury.

●

When it is necessary to disable the sys-

tem



P.217

●

Situations in which the sensors may not

operate properly



P.221

●

Situations in which the lane may not be

detected



P.222

■

Situations in which the function may

not operate properly

In situations such as the following, the

Traffic Jam Assist function may not oper-

ate properly. Manually operate the vehi-

cle as necessary.

●

When a sensor is splashed by water

●

When the ambient temperature is high

or low

●

When a vehicle cuts in front of your

vehicle

●

When another lane merges into the

lane in the same traveling direction as

your vehicle

●

When driving in low visibility condition

●

When the vehicle posture is changing

●

When the traction on the road surface

differs greatly between the left and

right side tires

●

When driving on an expressway with

no median strips or when driving on an

expressway equipped with temporary

median markers, such as poles.

283

4-5. Using the driving support systems

Driving

■

Operating conditions of the function

This function is operable when all of the fol-

lowing conditions are met:

●

The system detects lane lines and the

path of preceding or surrounding vehi-

cles.

●

The dynamic radar cruise control and the

lane tracing assist are operating.

●

The turn signal lever is not being oper-

ated.

●

The vehicle is not being driven around a

sharp curve.

●

The vehicle is being driven in the center

of a lane.

●

The driver monitor camera is detecting

that the driver is facing front of the vehi-

cle.

●

The vehicle is driving in traffic jam on a

highway or expressway at approximately

25 mph (40 km/h) or less. (In some situ-

ations, such as when a traffic jam starts,

this function may be operational at

approximately 20 mph [30 km/h] or

less.)

●

Safety Connect is being subscribed to.

●

The driver’s door is closed.

●

The driver’s seat belt is fastened.

●

Customized setting of the Traffic Jam

Assist is not set to off.

●

Functions and components composing

the system are in proper condition.

●

Customized setting of the PCS (Pre-Col-

lision System) is not set to off.

●

Customized setting of the dynamic radar

cruise control (re-start time extension) is

not set to off.

■

Temporary cancelation of the function

●

When the operating conditions are no

longer met, a function may be temporar-

ily canceled. However, when the opera-

tion conditions are met again, operation

of the function will automatically be

restored.

●

If the operating conditions of a function

are no longer met while the function is

operating, a buzzer may sound with a dis-

play to indicate that the function has been

temporarily canceled. If no driver’s

responses to the indication are detected,

the driver emergency stop assist function

may operate. For types of display and

action to be taken, see the page men-

tioned below. (



P.284)

■

Driving operations during controlled

driving

●

Accelerator pedal

As with normal driving, acceleration can
be performed by depressing the accelera-
tor pedal. In some situations, such as when
driving at approximately 6 mph (10 km/h)
or more and the accelerator pedal is
depressed, this function will be canceled.

●

Brake pedal

As with normal driving, deceleration can
be performed by depressing the brake
pedal. However, controlled driving will be
cancelled.

●

Steering wheel

As with normal driving, the steering wheel
can be operated. If the steering wheel is
operated more than a certain amount, con-
trolled driving will be cancelled.

WARNING

●

When there is a significant difference

in speed between your vehicle and the

other vehicle

●

The map data has not been updated

properly.

■

To prevent malfunction of the radar

sensors



P.219

■

To prevent malfunction of the front

camera



P.220

■

Front camera installation area on the

windshield



P.221

284

4-5. Using the driving support systems

■

When a warning message is displayed

●

“TrafficJamAsst System Malfunction Visit

Your Dealer”

The Traffic Jam Assist function may not be
operating properly.

●

“TrafficJamAsst Unavailable Stop Assist

Activated”

The system temporarily cannot be used as
the driver emergency stop assist function
has operated.



The setting of Traffic Jam Assist can
be enabled/disabled through a cus-
tomize setting. (



P.528)



The setting of driver monitor cam-
era recording can be enabled/dis-
abled through a customize setting.
(



P.528)

The following displays indicate the operating status of the Traffic Jam Assist func-
tion:

Changing Traffic Jam Assist set-
tings

Displays and system operation

Display

Status

Action to be taken

Traffic Jam Assist function is
operating



(Grey)

Traffic Jam Assist function is
about to end

Hold the steering wheel.

(Orange)

Traffic Jam Assist function has
ended

Hold the steering wheel.

(Red)

Operation of either or both of
dynamic radar cruise control
/LTA (Lane Tracing Assist)
ended

Manually operate the steering
wheel immediately.

286

4-5. Using the driving support systems

■

Stopping the engine

While driving with the D shift position
selected, depress the brake pedal and
stop the vehicle. The engine will stop
automatically.

When the engine stops, the Stop & Start
indicator will illuminate.

■

Restarting the engine

Release the brake pedal. The engine
will start automatically.

When the engine starts, the Stop & Start
indicator will turn off.

■

When the brake hold system is
operating



When the engine is stopped by the
Stop & Start system, if the brake

pedal is released the engine will
remain stopped.



If the accelerator pedal is depressed
while the engine is stopped by the
Stop & Start system, the engine will
restart.



While the engine is stopped by the
Stop & Start system, if the engine is
restarted, the brake hold system will
continue to apply the brakes, unless
the operation conditions of the
brake hold system are no longer
met. (



P.195)

■

When the dynamic radar cruise
control is operating



When the vehicle is stopped by the
dynamic radar cruise control, the
engine will stop automatically even
though the brake pedal is not
depressed.



When the preceding vehicle starts
off, the engine will restart automati-
cally.



If the engine is restarted by the Stop
& Start system while the vehicle is
stopped by the dynamic radar
cruise control, the vehicle will
remain stopped.

Press the Stop & Start cancel switch to
disable the Stop & Start system.

The Stop & Start cancel indicator will illu-
minate.
Pressing the switch again will enable the
Stop & Start system and the Stop & Start

Stop & Start system

The Stop & Start system stops and
starts the engine according to
brake pedal or shift lever operation
when the vehicle is stopped, such as
at a stoplight, intersection, etc., in
order to improve fuel economy and
reduce noise pollution caused by
the engine idling.

Stop & Start system operation

Disabling the Stop & Start sys-
tem

287

4-5. Using the driving support systems

Driving

cancel indicator will turn off.



Vehicles without downhill assist con-
trol system



Vehicles with downhill assist control
system

■

Automatic enabling of the Stop & Start

system

If the Stop & Start system is disabled using

the Stop & Start cancel switch, it will be

automatically re-enabled once the engine

switch is turned off and then the engine is

started.

When the engine is stopped by the
Stop & Start system when the vehicle is
on an incline, when the brake pedal is
released, brake force is temporarily
maintained to prevent the vehicle from
rolling backwards before the engine is
restarted and drive force is generated.
When drive force is generated, the

maintained brake force is automatically
canceled.



This function operates on flat sur-
faces as well as steep inclines.



Sound may be generated from the
brake system, but this does not indi-
cate a malfunction.



Brake pedal response may change
and vibration may occur, but this
does not indicate a malfunction.

■

Points for use

●

If the engine switch is pressed when the

engine is stopped by the Stop & Start sys-

tem, the engine will not be able to be

restarted by the automatic engine start

function. In this case, restart the engine

using the normal engine starting proce-

dure. (



P.182)

●

When the engine is being restarted by

the Stop & Start system, the power out-

lets may be temporarily unusable, but this

does not indicate a malfunction.

●

Installation and removal of electrical

components and wireless devices may

affect the Stop & Start system. Contact

your Lexus dealer for details.

●

When stopping the vehicle for a longer

period of time, turn the engine switch off

to stop the engine completely.

●

When the engine is restarted by the Stop

& Start system, the steering wheel may

temporarily feel heavy.

■

Operating conditions

●

The Stop & Start system is operational

when all of the following conditions are

met:

• The vehicle has been driven a certain

amount of time.

• The brake pedal is being depressed

firmly. (Except when the vehicle is

stopped by the dynamic radar cruise

control when in vehicle-to-vehicle dis-

tance control mode)

• The D shift position is selected.

• The driver’s seat belt is fastened.

Hill-start assist control

288

4-5. Using the driving support systems

• The driver’s door is closed.

• The windshield defogger is off.

• The accelerator pedal is not being

depressed.

• The engine is adequately warmed up.

• The hood is closed. (



P.288)

●

In the following situations the engine may

not be stopped by the Stop & Start sys-

tem. This is not a malfunction of the Stop

& Start system.

• When the air conditioning system is

being used.

• When the battery is undergoing a peri-

odic recharge.

• When the battery is not sufficiently

charged, such as if the vehicle has been

parked for a long time and the battery

charge has decreased, the electric load is

large, the battery fluid temperature is

excessively low or the battery has deteri-

orated.

• When the brake booster vacuum is low.

• When the elapsed time since the engine

was restarted is short.

• When the vehicle is stopped frequently,

such as when in a traffic jam.

• When the engine coolant temperature or

transmission fluid temperature is

extremely low or high.

• When the vehicle is stopped on a steep

incline.

• When the vehicle is being driven in a high

altitude area.

• When the battery fluid temperature is

extremely low or high.

• For a while after the battery terminals

have been disconnected and recon-

nected.

●

When the engine is stopped by the Stop

& Start system, the engine will be

restarted automatically if any of the fol-

lowing conditions are met: (To enable the

engine to be stopped by the Stop & Start

system again, drive the vehicle.)

• The air conditioning system is being used.

• The windshield defogger is turned on.

• The shift lever is shifted from D or P.

• The shift lever is shifted from P. (When

the engine is stopped by the Stop & Start

system when the shift lever is in P.)

• The driver’s seat belt is unfastened.

• The driver’s door is opened.

• The Stop & Start cancel switch is pressed.

• Advanced Park is operated. (if equipped)

• The accelerator pedal is depressed.

• The vehicle starts to roll on an incline.

●

When the engine is stopped by the Stop

& Start system, the engine may restart

automatically in the following situations:

(To enable the engine to be stopped by

the Stop & Start system again, drive the

vehicle.)

• When the brake pedal is pumped or

strongly depressed.

• When the air conditioning system is

being used.

• When a switch of the air conditioning sys-

tem is operated (windshield defogger

switch, etc.).

• If the battery charge becomes low.

■

When the hood is opened

●

If the hood is opened while the engine is

stopped by the Stop & Start system, the

engine will stall and will not be able to be

restarted by the automatic engine start

function. In this case, restart the engine

using the normal engine starting proce-

dure. (



P.182)

●

If the hood is closed after the engine is

started with the hood open, the Stop &

Start system will not operate. Close the

hood, turn the engine switch off, wait 30

seconds or more, and then start the

engine.

■

Air conditioning system operation while

the engine is stopped by the Stop &

Start system

When the air conditioning is in automatic

mode and the engine is stopped by the Stop

& Start system, the fan may operate at a low

speed in order to prevent the temperature

in the cabin from increasing or decreasing

or may be stopped.
To prioritize air conditioning system perfor-

mance when the vehicle is stopped, disable

the Stop & Start system by pressing the

Stop & Start cancel switch.

●

If the windshield is fogged up

Turn the windshield defogger on.
(



P.375)

If the windshield fogs up frequently, press
the Stop & Start cancel switch to disable

289

4-5. Using the driving support systems

Driving

the Stop & Start system.

●

If an odor is emitted from the air condi-

tioning system

Press the Stop & Start cancel switch to
deactivate the Stop & Start system.

■

Changing the idling stop time with the

air conditioning system on

The length of time the Stop & Start system

will operate when the air conditioning sys-

tem is on can be changed on the center dis-

play. (The length of time the Stop & Start

system will operate when the air condition-

ing system is off cannot be changed.)

Select .

Select “Vehicle customize”.

Select “Utility”.

Select “Stop & Start duration”.

Select “Standard” or “Extended”.

■

Multi-information display messages

If the following situations,

and a mes-

sage may be displayed on the multi-infor-

mation display.

●

When the engine cannot be stopped by

the Stop & Start system

“Press Brake More to Activate”

• The brake pedal is not sufficiently

depressed.



If the brake pedal is depressed further,

the system will operate.

“Non-Dedicated Battery”

• A battery not designed for use with a

Stop & Start system may have been

installed.



Have the vehicle inspected by your

Lexus dealer.

“Battery Charging”

• The battery charge may be low.



Stopping of the engine is temporarily

prohibited to prioritize charging of the bat-
tery. After the engine runs for a certain
amount of time, the system will be enabled.

• A refresh charge may be occurring



After a refresh charge for up to an hour

completes, the system can be operated.
• If displayed continuously for a long time

(more than an hour)



The battery may be deteriorated. Con-

tact your Lexus dealer for details.

“Stop & Start System Unavailable”

• The Stop & Start system is temporarily

disabled.



Allow the engine to run for some time.

• The engine may have been started with

the hood open.



Close the hood, turn the engine switch

off, wait for 30 seconds or more, and then
start the engine.

“In Preparation”

• The vehicle is being driven in a high alti-

tude area.

• The brake booster vacuum is low.



When the brake booster vacuum

reaches a predetermined level, the system
will be enabled.

“For Climate Control”

• The air conditioning system is being used

when the ambient temperature is high or

low.



If the difference between the set tem-

perature and cabin temperature becomes
small, the system will be enabled.
• The windshield defogger is on.

●

When the engine automatically restarts

while stopped by the Stop & Start system

“In Preparation”

• The brake pedal has been depressed fur-

ther or pumped.



The system will be enabled after the

engine runs and the brake booster vacuum
reaches a predetermined level.

“For Climate Control”

290

4-5. Using the driving support systems

• The air conditioning system is being used.
• The windshield defogger has been

turned on.

“Battery Charging”

• The battery charge may be low.



The system will be enabled after the

engine runs to sufficiently charge the bat-
tery.

■

When the buzzer sounds

If the driver’s door is opened when the

engine is stopped by the Stop & Start sys-

tem and the shift lever is in D, a buzzer will

sound and the Stop & Start system indicator

will flash. To stop the buzzer, close the

driver’s door.

■

The Stop & Start system protection

function

●

When the volume of the audio system is

excessively high, sound output from the

audio system may suddenly be cut off in

order to reduce battery consumption. To

prevent the audio system from being cut

off, keep the volume of audio system at a

moderate level. If the audio system has

been cut off, turn the engine switch off,

wait for 3 seconds or more and then turn

it to ACC or ON to re-enable the audio

system.

●

The audio system may not be activated if

the battery terminals are disconnected

and then reconnected. If this occurs, turn

the engine switch off and then repeat the

following operation twice to activate the

audio system normally.

• Turn the engine switch to ON and then to

off.

■

Replacing the battery



P.502

■

If the Stop & Start cancel indicator

flashes continuously

The system may be malfunctioning. Have

the vehicle inspected by your Lexus dealer.

■

If the malfunction indicator lamp comes

The system may be malfunctioning. Have

the vehicle inspected by your Lexus dealer.

■

If “Stop & Start System Malfunction

Visit Your Dealer” is displayed on the

multi-information display

The system may be malfunctioning. Have

the vehicle inspected by your Lexus dealer.

WARNING

■

When the Stop & Start system is

operating

Make sure to disable the Stop & Start

system while the vehicle is in a poorly

ventilated area. If not disabled, the

engine may be automatically restarted

unexpectedly, causing exhaust gases to

collect and enter the vehicle, possibly

resulting in death or a serious health haz-

ard.

●

Do not leave the vehicle while the

engine is stopped by the Stop & Start

system (while the Stop & Start indica-

tor is on). An accident may occur due

to the automatic engine start function.

●

Depress the brake pedal and apply the

parking brake when necessary while

the engine is stopped by the Stop &

Start system (while the Stop & Start

indicator is on).

NOTICE

■

To ensure the system operates cor-

rectly

If any of the following situations occur,

the Stop & Start system may not operate

correctly. Have your vehicle inspected by

your Lexus dealer.

●

While the driver’s seat belt is fastened,

the driver’s and front passenger’s seat

belt reminder light flashes.

●

Even though the driver’s seat belt is not

fastened, the driver’s and front passen-

ger’s seat belt reminder light does not

illuminate.

291

4-5. Using the driving support systems

Driving

Center display

Turning the Blind Spot Monitor on/off.

NOTICE

●

Even though the driver’s door is

closed, the open door warning light is

illuminated or the interior light is illumi-

nated when the interior light switch is

in the door position.

●

Even though the driver’s door is open,

the open door warning light does not

illuminate or the interior light does not

illuminate when the interior light switch

is in the door position.

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 supple-

mentary function which alerts the

driver that a vehicle is in a blind spot of

the outside rear view mirrors or is

approaching rapidly 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 cor-

rectly under certain conditions, the

driver’s own visual confirmation of

safety is necessary.

System components

292

4-5. Using the driving support systems

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 (



P.70) on the detected side will

illuminate. If the turn signal lever is oper-
ated toward the detected side, the outside
rear view mirror indicator will flash and a
buzzer will sound.

Driving assist information indicator

Illuminates when the Blind Spot Monitor is
turned off. At this time, a message will be
displayed on the multi-information display.

■

Outside rear view mirror indicator visi-

bility

In strong sunlight, the outside rear view mir-

ror indicator may be difficult to see.

■

Buzzer

If the volume setting of the audio system is

high or the surrounding area is loud, it may

be difficult to hear the buzzer.

■

Customization

Some functions can be customized.

(



P.528)

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 will be
displayed. In this situation, clear off the
dirt or snow and drive the vehicle with
the operation conditions of the BSM
function (



P.294) satisfied for approxi-

mately 10 minutes. If the warning mes-
sage 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 paint the surrounding area of a

sensor 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.

293

4-5. Using the driving support systems

Driving

The Blind Spot Monitor can be
enabled/disabled through a customize
setting. (



P.528)

When the Blind Spot Monitor is off, the
driving assist information indicator
(



P.70) will illuminate and a message

will be displayed on the multi-informa-
tion display.
Each time the engine switch is turned
to ON, the Blind Spot Monitor is
enabled.

■

Objects that can be detected while driving

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)

■

Detection range while driving

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

WARNING

●

Do not modify the sensor or surround-

ing area on the rear bumper.

●

If a sensor or the rear bumper needs to

be removed/installed or replaced,

contact your Lexus dealer.

●

The sensors are likely to be affected by

paint on the rear bumper. If the rear

bumper is not repaired correctly, the

Blind Spot Monitor may not operate

with a warning message displayed. If

any paint repair is needed, contact

your Lexus dealer.

Turning the Blind Spot Monitor
on/off

Blind Spot Monitor operation

294

4-5. Using the driving support systems

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 230 ft. (70 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.

: While the vehicle is to being overtaken, up to approximately 9.8 ft. (3 m) forward of the

rear bumper will 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 linked
function

The LDA (Lane Departure Alert) has a
function that uses information of
detected vehicles driving in an adja-
cent lane. For details about the function
and its operating conditions, P.245.

■

The Blind Spot Monitor is operational

when

The Blind Spot Monitor is operational when

all of the following conditions are met:

●

The engine switch is in ON.

●

The Blind Spot Monitor is on.

●

The shift position is in a position other

than R.

●

The vehicle speed is greater than approx-

imately 7 mph (10 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.

■

Situations in which the Blind Spot Moni-

tor cannot detect vehicles.

The Blind Spot Monitor cannot detect the

following vehicles and other objects:

●

Small motorcycles, bicycles, pedestrians,
etc.

●

Vehicles traveling in the opposite direc-

tion

●

Guardrails, walls, signs, parked vehicles

295

4-5. Using the driving support systems

Driving

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 in which a buzzer may not

sound

In situations such as the following, while the

turn signal lever is being operated, the indi-

cator will flash but a buzzer may not sound.

●

When a second vehicle is detected while

the turn signal lever is being held

●

When overtaking a vehicle in the adja-
cent lane at a much higher speed than it

: Depending on the situations, a buzzer

may sound.

■

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

• When towing with the vehicle

●

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

• When towing with the vehicle

296

4-5. Using the driving support systems

Center display

Turning the safe exit assist on/off.

Outside rear view mirror indicators

When a vehicle or bicycle which may col-
lide with a door (other than the back door)
when opened is detected, the outside rear
view mirror indicator (



P.70) on the

detected side will illuminate. If the door on
the detected side is open, or opening of the
door is canceled, the outside rear view mir-
ror indicator will blink.

Multi-information display

If collision with a door is likely and the door
is opened or opening of the door is can-
celed, the door will be displayed on the
multi-information display. Also, if a door is
opened when an outside rear view mirror
indicator is illuminated, a buzzer will sound
as a warning.

Driving assist information indicator

Illuminates when the safe exit assist is
turned off. At this time, a message will be
displayed on the multi-information display.

Speakers

When the outside rear view mirror indica-
tor blinks, the driver is informed through
voice guidance that the system has oper-
ated. After the notification through voice
guidance is made, no more voice guidance
notifications will be made again until the
door is fully closed.

Door opener switch (manual
release handle)

If a door opener switch is operated to open
a door while the outside rear view mirror
indicator on that side is illuminated and the
system determines that the possibility of
the door or an exiting occupant colliding
with a vehicle or bicycle is high, opening of
the door will be canceled.

Safe Exit Assist

The safe exit assist (with door open-
ing control) is a system that uses
rear side radar sensors installed on
the inner side of the rear bumper to
help occupants judge if an
approaching vehicle or bicycle may
collide with a door when exiting or
cancel opening of a door, to help
reduce the possibility of a collision.

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 safe exit assist is a supplementary

system that, when the vehicle is

stopped, informs occupants of the

existence of approaching vehicles and

bicycles. As this system alone cannot

be used to judge safety, over-reliance

on this system may lead to an accident

resulting in death or serious injury.

In certain situations, this system may not

function to its fullest extent. Therefore it is

necessary for the occupants to visually

check for safety directly and using the

mirrors.

System components

297

4-5. Using the driving support systems

Driving

■

Outside rear view mirror indicator visi-

bility

In strong sunlight, the outside rear view mir-

ror indicator may be difficult to see.

■

Buzzer

If the volume setting of the audio system is

high or the surrounding area is loud, it may

be difficult to hear the buzzer.

■

Voice notifications

In the following situations, voice notifica-

tions will not be output:

●

When it is estimated that no occupants
are on board

●

After opening a door and entering the

vehicle, until the engine is started

●

When 3 minutes or more have elapsed

since the engine was stopped

●

When the language setting of the center

display has been set to a language that

does not support voice notifications

●

When all of the doors have been locked

from outside the vehicle

●

When a door remains open for 1 minute

or more after the engine is stopped

●

When the ACC mode (



P.528) has

been enabled through a customize set-

ting on the center display and the engine

has been stopped

●

When the parking assist volume setting

on the center display has been set to off

: For each seating position, judgment is

made based on the opening and closing

of a door, before driving for ingress and
after driving for egress.

■

Opening of a door can be canceled

when

Opening of a door can be canceled only

when the inside door opener switch is

pushed in. Opening of a door will not be

able to be canceled when the outside door

opener switch is used.

■

Customization

Some functions can be customized.

(



P.528)

The safe exit assist system can be
enabled/disabled through a customize
setting. (



P.528)

When the safe exit assist is off, the driv-
ing assist information indicator will illu-
minate and a message will be displayed
on the multi-information display.
Each time the engine switch is turned
to ON, the safe exit assist is enabled.

■

Objects that can be detected by the safe exit assist

When the safe exit assist detects the following vehicles or bicycles behind your
vehicle using a rear side radar sensor, the occupants of the vehicle are informed
through an outside rear view mirror indicator, buzzer, multi-information display,
and voice notification.

WARNING

■

To ensure the system can operate

properly



P.292

Turning the safe exit assist sys-
tem ON/OFF

Safe exit assist operation

298

4-5. Using the driving support systems

Vehicle or bicycle which has a high possibility of colliding with a door (other
than the back door) when opened

■

The safe exit assist detection areas

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

Approximately 145 ft. (45 m) rearward from the front door

: The faster a vehicle or bicycle is approaching, the distance at which an outside rear view

mirror indicator will illuminate or blink will become further.

■

The safe exit assist is operational when

The safe exit assist is operational when all of

the following conditions are met:

●

When the engine switch is ON, less than

3 minutes have elapsed since the engine

was off, or less than 3 minutes have

elapsed since a door was opened and

someone has entered the vehicle (the

time which operation is possible may be

extended if a door is opened and closed)

●

Safe exit assist is on

●

The vehicle is stopped.

●

The shift position is in a position other

than R.

■

The safe exit assist will detect a vehicle

when

The safe exit assist will detect a vehicle

present in the detection area in the follow-

ing situations:

●

When the vehicle is stopped and a vehi-

cle or bicycle, which is traveling parallel

to the vehicle, is approaching within the

area that a door opens (other than the

back door)

■

Conditions under which the system will

not detect a vehicle

●

Safe exit assist does not detect the follow-

ing objects, vehicles, and bicycles:

• Vehicles or bicycles which are approach-

ing slowly

• Vehicles or bicycles which are deter-

299

4-5. Using the driving support systems

Driving

mined to have a low possibility of colliding

with a door (other than the back door)
when opened

• Vehicles or bicycles which are approach-

ing from directly behind

• Vehicles or bicycles which are approach-

ing from the front

• Guardrails, walls, signs, parked vehicles,

and other stationary objects

• Pedestrians, animals, etc.

●

In situations such as the following, safe

exit assist will not operate:

• When 3 minutes or more have elapsed

since the engine off (the time which oper-

ation is possible may be extended if a

door is opened and closed)

• When your vehicle is not completely

stopped

: Depending on the conditions, detection

of a vehicle and/or object may occur.

■

Opening the doors when opening is

canceled by the system

Perform the following operation to open a

door.
After the approaching vehicle or bicycle

passes or changes direction, check the sur-

rounding area and press the inside door

opener switch again. Perform the following

only in an emergency, etc., to open a door

while the warning is operating, after check-

ing the safety of the area around your vehi-

cle.

●

Press and hold an inside door opener

switch for approximately 3 seconds or

●

Press an inside door opener switch

quickly 3 times or more

●

Pull a manual release handle

■

Conditions under which the system may

not function correctly

●

The safe exit assist may not detect vehi-

cles correctly in the following situations:

• 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 a vehicle or bicycle approaches

from behind a nearby parked vehicle

• When an approaching vehicle or bicycle

suddenly changes direction

• Immediately after a vehicle or bicycle

starts moving

• When the back door is open

• When a bicycle carrier, ramp, or other

accessory is installed to the back of the

vehicle

• When a parked vehicle, wall, sign, person

or other stationary object is behind the

vehicle

• When the vehicle is stopped at an angle

to the road

• When a vehicle is traveling near an

approaching vehicle or bicycle

• When an approaching vehicle or bicycle

is traveling along a stationary object, such

a wall or sign

• When a vehicle or bicycle is approaching

at high speed

• When towing with the vehicle

• When stopped on a steep slope

• When stopped on a curve or at the exit of

a curve

●

Instances of the safe exit assist unneces-

sarily detecting a vehicle and/or object

may increase in the following situations:

• When the sensor is misaligned due to a

strong impact to the sensor or its sur-

rounding area

• When a vehicle or bicycle approaches

your vehicle from directly behind in an

offset position

• When the vehicle is stopped at an angle

to the road

• When a vehicle or bicycle approaches

from behind a parked vehicle at an angle

• When a parked vehicle, wall, sign, person

or other stationary object is behind the

vehicle

• When an approaching vehicle or bicycle

suddenly changes direction

• When an approaching vehicle or bicycle

is traveling along a stationary object, such

a wall or sign

• When the back door is open

• When a bicycle carrier, ramp, or other

accessory is installed to the back of the

vehicle

300

4-5. Using the driving support systems

• When a vehicle or bicycle is approaching

at high speed

• When towing with the vehicle

• When stopped on a steep slope

• When stopped on a curve or at the exit of

a curve

• When a vehicle or bicycle approaches

from behind a vehicle stopped in an adja-

cent lane

: If equipped

■

Type of sensors

Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
Front side sensors (vehicles with
Advanced Park)
Rear side sensors (vehicles with
Advanced Park)

■

Display

When the sensors detect an object,
such as a wall, a graphic is shown on
the center display depending on the
position and distance to the object.

Intuitive parking assist

The intuitive parking assist function
detects the approximate distance
from the vehicle and an object such
as a wall using ultrasonic sensors
and informs the driver with the cen-
ter display distance display and
buzzer.

System components

301

4-5. Using the driving support systems

Driving

Vehicles without center display or rear
camera: When detecting a stationary
object, the intuitive parking assist
detection indicator illuminates.
(



P.70)

Center display:

Front corner sensor detection
Front center sensor detection
Rear corner sensor detection
Rear center sensor detection
Front side sensor detection (vehi-
cles with Advanced Park)
Rear side sensor detection (vehi-
cles with Advanced Park)

The intuitive parking assist function can
be enabled/disabled through a cus-
tomize setting. (



P.528)

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



P.70) illumi-

nates on the multi-information display.
If the system switches to OFF (dis-
abled) and the intuitive parking assist is
stopped, the intuitive parking assist will
not be re-enabled until ON (enabled)

is selected again from the customize
setting (



P.528). (It remains off even

if the engine switch is turned to ON
again after the engine switch has been
turned off.)
Vehicles without the center display or
rear camera: However, the system will
automatically turn on (enabled) and
the intuitive parking assist OFF indica-
tor will turn off if the shift position is
changed to R.
When the shift position is R, the intui-
tive parking assist cannot be turned on
or off.
The setting of intuitive parking assist
itself will not change.

Turning the intuitive parking
assist function ON/OFF

WARNING

■

Cautions regarding the use of the sys-

tem

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.

■

To ensure the system can operate

properly

Make sure to observe the following pre-

cautions. The system may not operate

properly and may lead to an unexpected

accident. When these precautions can-

not be observed, turn the system off.

●

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.

302

4-5. Using the driving support systems

■

The system can be operated when

●

The engine switch is in ON.

●

The intuitive parking assist is on.

●

The vehicle speed is less than about 6

mph (10 km/h).

●

A shift position other than P is selected.

●

Vehicles without the center display or

rear camera: The system will automati-

cally turn on (enabled) and the intuitive

parking assist OFF indicator will turn off if

the shift position is changed to R.

The setting of intuitive parking assist itself

will not change.

■

Sensor detection information

●

The sensor’s detection areas are limited

to the areas around the vehicle’s front and

rear bumpers.

●

Certain vehicle conditions and the sur-

rounding environment may affect the

ability of a sensor to correctly detect an

object.

●

Objects may not be detected if they are

too close to the sensor.

●

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 sen-

sor’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 sound of this

system due to the buzzers of other sys-

tems.

●

If the meter malfunctions, the buzzer may

not sound.

■

Objects which the system may not be

properly detected

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, water drops 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 dis-

WARNING

●

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.

●

Do not install a suspension other than a

genuine suspension.

■

Notes when washing the vehicle

●

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 vehicle,

do not direct steam too close to the

sensors, as doing so may cause a sen-

sor to malfunction.

303

4-5. Using the driving support systems

Driving

played 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.

●

When strong winds are 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 such as a towing eyelet,

transport hook, bumper protector,

bumper trim, bicycle carrier or

snow-removal device (snow plow) is

installed near the sensor

●

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, compact spare tire or

an emergency tire puncture repair kit are

used

●

When towing with the vehicle

■

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

304

4-5. Using the driving support systems

●

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, compact spare tire or

an emergency tire puncture repair kit are

used

●

When towing with the vehicle

■

Detection range of the sensors



Vehicles without Advanced Park

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.

Sensor detection display, object
distance

305

4-5. Using the driving support systems

Driving



Vehicles with Advanced Park

Approximately 6.6 ft. (200 cm)

■

The distance and buzzer



Vehicles without Advanced Park

Approximate distance to obstacle

Buzzer

Front center sensor:
Approximately 3.3 ft. (100 cm) to 2.0 ft. (60
cm)

Rear center sensor:
Approximately 4.9 ft. (150 cm) to 2.0 ft. (60
cm)

Slow

Approximately 2.0 ft. (60 cm) to 1.5 ft. (45
cm)

Medium

Approximately 1.5 ft. (45 cm) to 1.0 ft. (30
cm)

Fast

Approximately less than 1.0 ft. (30 cm)

Continuous

307

4-5. Using the driving support systems

Driving

: Automatic buzzer mute function is

enabled. (



P.307)

■

Intuitive parking assist buzzer

A buzzer sounds when the sensors are
operating.



The buzzer beeps faster as the vehi-
cle approaches a static object.
When the vehicle comes within the
approximately 1.0 ft. (30 cm) of the
object, the buzzer will sound contin-
uously.



When 2 or more sensors simultane-
ously detect a static object, the
buzzer sounds for the nearest
object.



After a buzzer begins sounding, if
the distance between the vehicle
and the detected a static object
does not become shorter, the

buzzer will be muted automatically.
(automatic buzzer mute function)

■

Adjusting the buzzer volume

The buzzer volume of the intuitive parking

assist, RCTA, and RCD (if equipped) can all

be changed at once from the customize set-

tings. (



P.528)

■

Muting a buzzer

When the temporary mute switch is dis-

played on the center display, this switch can

be pressed to temporarily mute the buzzer.
Select the switch to mute a buzzer of the

intuitive parking assist, RCTA, and RCD (if

equipped) all together.

●

Mute will be automatically canceled in

the following situations:

• When the shift position is changed.

• When the vehicle speed exceeds a cer-

tain speed.

• When there is a malfunction in a sensor

or the system is temporarily unavailable.

• When the operating function is disabled

manually.

• When the engine switch is turned off.

The object warning function informs
the driver of the existence of objects
along the side of the vehicle, using a

display and buzzer, if the objects are
within the estimated path of the vehicle.

Except side sensor:
Approximately 1.5 ft. (45 cm) to 1.0 ft. (30
cm)

Side sensor:
Approximately 1.3 ft. (40 cm) to 1.0 ft. (30
cm)

Fast

Approximately less than 1.0 ft. (30 cm)

Continuous

Approximate distance to obstacle

Buzzer

Intuitive parking assist object warning function (vehicles with Advanced
Park)

308

4-5. Using the driving support systems

Object
Calculated vehicle route

When the vehicle is moving, the side sensors or side cameras can detect objects.
While the vehicle is moving, if a detected object can no longer be detected by the
side sensors or side cameras, the location of the object relative to the vehicle is
estimated. If the object is determined to be in the estimated path of the vehicle, the
object warning function will operate.

Object detected by side sensors or side cameras

The vehicle is stopped and objects along the sides of the vehicle are not
detected.

Objects are detected as the vehicle is moving.

Even though the objects are outside of the detection area of the side sensors or
side cameras, a warning is displayed and a buzzer sounds.

■

Object warning function operating con-

ditions

●

The vehicle moves about 23.0 ft. (7 m)

after the engine is started.

●

The R shift position is selected.

●

After the D shift position has been

selected, the vehicle has moved 23.0 ft.

(7 m) or less.

●

switch has been pressed and the

center display is displayed.

●

The front or rear sensor detects a station-

ary object.

■

Detection of objects along the sides of

the vehicle

●

Objects along the sides of the vehicle are

not instantaneously detected. The loca-

tion of objects in relation to the vehicle is

estimated after they are first detected by

the front or rear side sensors, or side

cameras. Therefore, after the engine

switch is changed to ON, even if an

object is along the side of the vehicle, it

may not be detected until the vehicle has

been driven a small amount and the side

309

4-5. Using the driving support systems

Driving

sensors or side cameras completely scan

the areas along the sides of the vehicle.

●

If a vehicle, person, animal, etc., is

detected by a side sensors or side cam-

eras, but then leaves the detection area of

the side sensors or side cameras, the sys-

tem will assume the object has not

moved.

WARNING

■

Side sensors and side cameras

In situations such as the following, the

function may not operate correctly, pos-

sibly leading to an accident. Proceed

carefully.

●

When starting off shortly after the

engine switch is turned to ON and a

small vehicle or other object which

cannot be detected by a front side sen-

sor is next to the vehicle.

In the situation shown in the following

illustration, even if the vehicle starts off,

the vehicle on the left will not be

detected and the object warning func-

tion will not operate.

●

When an object or person is in a posi-

tion which cannot be detected by the

side sensors or side cameras.

●

When, after the side sensors have

completed scanning the areas along

the sides of the vehicle, a vehicle, per-

son, or other object approaches the

side of the vehicle and cannot be

detected.

●

When the outside rear view mirror is

closed, the side sensors or side cam-

eras cannot detect objects.

●

If the battery was discharged or has

been removed and installed, fold and

extend the outside rear view mirrors.

310

4-5. Using the driving support systems

Center display

Turning the RCTA function on/off in center

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



P.311) for the detected

side will be displayed on the center display.
This illustration

shows an example of a

vehicle approaching from both sides of the
vehicle.

: Depending on the vehicle grade and

equipped options, the actual screen may
be different from this illustration.

Outside rear view mirror indicators

If a vehicle is detected as approaching
from the left or right behind the vehicle,
both outside rear view mirror indicators
(



P.70) will blink and a buzzer will sound.

Driving assist information indicator

Illuminates when the RCTA is turned off. At
this time, a message will be displayed on
the multi-information display.

The RCTA can be enabled/disabled
through a customize setting.
(



P.528)

When the RCTA function is off, the
driving assist information indicator
(



P.70) will illuminate and a message

will be displayed on the multi-informa-
tion display. Each time the engine
switch is turned to ON, the RCTA
function is enabled.

■

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

RCTA (Rear Cross Traffic
Alert) function

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

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 RCTA

function is only a supplementary function

which alerts the driver that a vehicle is

approaching from the right or left at the

rear of the vehicle. As the RCTA function

may not function correctly under certain

conditions, the driver’s own visual confir-

mation of safety is necessary. Over reli-

ance on this function may lead to an

accident resulting death or serious injury.

■

To ensure the system can operate

properly



P.292

System components

Turning the RCTA function
on/off

311

4-5. Using the driving support systems

Driving

over loud noises, such as if the audio system

volume is high.

■

Rear side radar sensors



P.292

■

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 (Panoramic view monitor)
(if equipped): Vehicles are
approaching from both sides of the
vehicle

■

RCTA function detection areas

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

RCTA function

312

4-5. Using the driving support systems

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 engine switch is ON.

●

The RCTA function is on.

●

The shift position 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 volume of the RCTA buzzer can be

adjusted through a customize setting.

(



P.528)

The buzzer volume of the RCTA, intuitive

parking assist (if equipped) and RCD (if

equipped) can be adjusted all together

through a customize setting. (



P.528)

■

Muting a buzzer temporarily

When an object is detected, the temporary

mute switch is displayed on the center dis-

play. Select the switch to mute the buzzer of

the intuitive parking assist (if equipped),

RCTA, and RCD (if equipped) all together.
Mute will be canceled automatically in the

following situations:

●

When the shift position is changed.

●

When the vehicle speed exceeds a cer-

tain speed.

●

When there is a malfunction in a sensor

or the system is temporarily unavailable.

●

When the operating function is disabled

manually.

●

When the engine switch is turned off.

■

Conditions under which the system will

not detect a vehicle

The RCTA function is not designed to

detect the following types of vehicles and/or

objects:

●

Vehicles approaching from directly

behind

●

Vehicles backing up in a parking space

next to your vehicle

●

Vehicles that the sensors cannot detect

due to obstructions

●

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

●

Small motorcycles, bicycles, pedestrians,

Approaching vehi-

cle speed

Approximate

alert distance

34 mph (56 km/h)

(fast)

98 ft. (30 m)

5 mph (8 km/h)

(slow)

13 ft. (4 m)

313

4-5. Using the driving support systems

Driving

etc.

●

Vehicles moving away from your vehicle

●

Vehicles approaching from the parking
spaces next to your vehicle

●

The distance between the sensor and

approaching vehicle gets too close

: Depending on the conditions, detection

of a vehicle and/or object may occur.

■

Situations in which the system may not

operate properly

The RCTA function may not detect vehicles

correctly in the following situations:

●

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 position above 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 a vehicle is approaching at high

speed

●

When equipment that may obstruct a

sensor is installed, such as a towing eye-

let, bumper protector (an additional trim

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

●

When backing up on a slope with a sharp

change in grade

●

When backing out of a sharp angle park-

ing spot

●

Immediately after the RCTA function is

turned on

●

Immediately after the engine is started

with the RCTA function on

●

When the sensors cannot detect a vehi-

cle due to obstructions

●

When towing with the vehicle

●

When there is a significant difference in

height between your vehicle and the

vehicle that enters the detection area

●

When a sensor or the area around a sen-

sor is extremely hot or cold

●

If the suspension has been modified or

tires of a size other than specified are

installed

●

If the front of the vehicle is raised or low-

ered due to the carried load

●

When turning while backing up

Lexus TX350 (2024 year). Manual in english - page 9