Lexus LX600 (2024 year). Manual in english - page 8

 

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Lexus LX600 (2024 year). Manual in english - page 8

 

 

252

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.200)

When the dynamic radar cruise 
control with full-speed range is 
operating

When the vehicle is stopped by the 
dynamic radar cruise control with 
full-speed range, 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 with full-speed range, 
the vehicle will remain stopped.

Press the Stop & Start cancel switch to 
disable the Stop & Start system.
The Stop & Start cancel indicator will 
illuminate.

Pressing the switch again will enable the 

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

253

4-5. Using the driving support systems

4

Driving

Stop & Start system and the Stop & Start 
cancel indicator will turn off.

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 automati-
cally 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.188)

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 stopped by the Stop 

& Start system, the steering wheel feel 

heavy.

While driving in L4 mode, it is recom-

mended that the Stop & Start system be 

canceled because the system may not 

operate properly.

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 with full-
speed range when in vehicle-to-vehicle dis-
tance control mode)
• The D shift position is selected.

• The driver’s seat belt is fastened.

• The driver’s door is closed.

• The center differential is not locked.

• The Multi-terrain Select is not operated.

• The windshield defogger is off.

• The accelerator pedal is not being 

depressed.

• The engine is adequately warmed up.

• The hood is closed. (

P.254)

Hill-start assist control

254

4-5. Using the driving support systems

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 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.

*

: The state that the engine is not stopped 

may continue.

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 vehi-
cle.)
• 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 center differential is locked.

• The Multi-terrain Select is operated.

• The Stop & Start cancel switch is pressed.

• 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 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.188)

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.388)

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

If an odor is emitted from the air condi-

255

4-5. Using the driving support systems

4

Driving

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 in 

 of the 

multi-information display (

P.82). (The 

length of time the Stop & Start system will 
operate when the air conditioning system is 
off cannot be changed.)

Displaying the Stop & Start system sta-

tus

P.82

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.

 “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

 “For Climate Control”

• 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 

256

4-5. Using the driving support systems

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.527

If the Stop & Start cancel indicator 

flashes continuously

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 auto-

matically restarted unexpectedly, caus-

ing exhaust gases to collect and enter the 

vehicle, possibly resulting in death or a 

serious health hazard.

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 

passenger’s seat belt reminder light 

does not illuminate.

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.

257

4-5. Using the driving support systems

4

Driving

Meter control switches

Turning the Blind Spot Monitor 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 OFF indicator

Illuminates when the Blind Spot Monitor is 
disabled.

Outside rear view mirror indicators visi-

bility

In strong sunlight, the outside rear view mir-

ror indicator may be difficult to see.

When “Blind Spot Monitor Unavailable 

See Owner’s Manual” is shown on the 

multi-information display

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

rear bumper around the sensors. 

(

P.258)

The system should return to normal opera-

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

from the rear bumper. Additionally, the sen-

sors may not operate normally when driving 

in extremely hot or cold environments.

When “Blind Spot Monitor Malfunction 

Visit Your Dealer” is shown on the multi-

information display

There may be a sensor malfunction or mis-

aligned. Have the vehicle inspected at a 

Lexus dealer.

Customization

Some functions can be customized. (Cus-

tomizable features: 

P.561)

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

A

B

C

258

4-5. Using the driving support systems

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

P.83)

1

Press the meter control switch to 
select .

2

Press the meter control switch to 
select 

 and then press 

.

When the BSM function is disabled, the 

BSM OFF indicator illuminates. (Each time 

the engine switch is turned to OFF then 

changed to ON, the Blind Spot Monitor 

will be enabled automatically.)

WARNING

To ensure the system can operate 

properly

Blind Spot Monitor sensors are installed 

inside the left and right sides of the rear 

bumper respectively. Observe the fol-

lowing to ensure the Blind Spot Monitor 

can function correctly.

Keep the sensors and the surrounding 

areas on the rear bumper clean at all 

times. 

If a sensor or its surrounding area on 

the rear bumper is dirty or covered 

with snow, the Blind Spot Monitor may 

not operate and a warning message 

(

P.257) will be displayed. In this sit-

uation, clear off the dirt or snow and 

drive the vehicle with the operation 

conditions of the BSM function 

(

P.260) satisfied for approximately 

10 minutes. If the warning message 

does not disappear, have the vehicle 

inspected by your Lexus dealer.

Do not attach accessories, stickers 

(including transparent stickers), alumi-

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

rounding area on the rear bumper.

Do not subject a sensor or its sur-

rounding area on the rear bumper to a 

strong impact. 

If a sensor is moved even slightly off 

position, the system may malfunction 

and vehicles may not be detected cor-

rectly. 

In the following situations, have your 

vehicle inspected by your Lexus 

dealer.

• A sensor or its surrounding area is 

subject to a strong impact.

• If the surrounding area of a sensor is 

scratched or dented, or part of them 

has become disconnected.

Do not disassemble the sensor.

Do not modify the sensor or surround-

ing area on the rear bumper.

If a sensor or the rear bumper needs to 

be removed/installed or replaced, 

contact your Lexus dealer.

Do not paint the rear bumper any 

color other than an official Lexus color.

Turning the Blind Spot Monitor 
on/off

259

4-5. Using the driving support systems

4

Driving

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

*1

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

*2

*1

: 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

A
B
C
D

260

4-5. Using the driving support systems

*2

: 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 6 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.

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 towing a trailer

• 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 

261

4-5. Using the driving support systems

4

Driving

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

Types of sensors

Front corner sensors

Front center sensors

Rear corner sensors

Rear center sensors

Display (Multimedia Display)

When the sensors detect an object, 
such as a wall, a graphic is shown on 
the Multimedia Display depending on 
the position and distance to the object. 
(As the distance to the object becomes 
short, the distance segments may 
blink.)
A simplified image is displayed on the 
screen when an obstacle is detected 

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-
media Display and a buzzer. Always 
check the surrounding area when 
using this system.

System components

A
B
C
D

262

4-5. Using the driving support systems

while magnified display is shown. 
(

P.287)

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

P.83)

1

Press the meter control switch to 
select .

2

Press the meter control switch to 
select 

 and then press 

.

When the intuitive parking assist function is 
disabled, the intuitive parking assist OFF 
indicator (

P.76) illuminates on the multi-

information display.

To re-enable the system, select 

 on the 

multi-information display, select 

 and 

turn it on.
If the system is disabled, it will remain off 
even if the engine switch is turned to ON 
after the engine switch has been turned off.

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.

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.

263

4-5. Using the driving support systems

4

Driving

The system can be operated when

The engine 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 other than P.

If “Parking Assist Unavailable” is dis-

played on the multi-information display

A sensor may be covered with water 

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

water drops, ice, snow, dirt, etc., from the 

sensor to return the system to normal.

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 a warning message is displayed even if 

the sensor is clean, there may be a sensor 

malfunction. Have the vehicle inspected 

by your Lexus dealer.

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.

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.

• Detection may be impossible if static 

objects draw too close to the sensor.

• There will be a short delay between static 

object detection and display (warning 

buzzer sounds). Even at low speeds, 

there is a possibility that the object will 

come within 11.9 in. (30 cm) before the 

display is shown and the warning buzzer 

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.

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

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-

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.

WARNING

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.

264

4-5. Using the driving support systems

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 

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

265

4-5. Using the driving support systems

4

Driving

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.

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.

The distance and buzzer

Sensor detection display, object 
distance

A
B
C

Approximate distance to obstacle

Buzzer

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

*

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

*

Slow

2.0 ft. to 1.5 ft. (60 cm to 45 cm)

*

Medium

1.5 ft. to 1.0 ft. (45 cm to 30 cm)

*

Fast

266

4-5. Using the driving support systems

*

: Automatic buzzer mute function is enabled. (

P.266)

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 
approximately 1.0 ft. (30 cm) of the 
object, the buzzer sounds continu-
ously.

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

Even when the sensors are operat-
ing, the buzzer will be muted in 
some situations. (automatic buzzer 
mute function)

Adjusting the buzzer volume

The buzzer volume can be adjusted on 
the multi-information display.
Use the meter control switches to 
change settings. (

P.83)

1

Press the meter control switch to 
select .

2

Press the meter control switch to 
select “Vehicle Settings”.

3

Select “

Volume” and then press 

.

Each time the switch is pressed, the vol-

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

Muting a buzzer

A mute button will be displayed on the 
multi-information display and Multime-
dia Display when an object is detected. 
To mute the buzzer, press 

 or 

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

When the shift lever is changed.

When the vehicle speed exceeds a 
certain speed.

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

When the operating function is dis-
abled manually.

When the engine switch is turned 
off.

1.0 ft. to 0.5 ft. (30 cm to 15 cm)

Continuous

Less than 0.5 ft. (15 cm)

Approximate distance to obstacle

Buzzer

267

4-5. Using the driving support systems

4

Driving

Meter control switches

Turning the RCTA function on/off.

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.

Multimedia Display

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

P.268) for the detected 

side will be displayed on the Multimedia 
Display. 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.

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 

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.257)

To ensure the system can operate 

properly

P.258

System components

A

B

C

D

268

4-5. Using the driving support systems

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

P.83)

1

Press the meter control switch to 
select .

2

Press the meter control switch to 
select “RCTA” and then press 

.

When the RCTA function is disabled, the 

RCTA OFF indicator (

P.76) illumi-

nates. (Each time the engine switch is 

turned to OFF then changed to ON, the 

RCTA function will be enabled automati-

cally.)

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.

When “Rear Cross Traffic Alert 

Unavailable See Owner’s Manual” is 

shown on the multi-information display

The sensor voltage has become abnormal, 

or water, snow, mud, etc., may be built up in 

the vicinity of the sensor area of the position 

above the rear bumper. (

P.258)

Removing the water, snow, mud, etc., from 

the vicinity of the sensor area should return 

it to normal. Also, the sensor may not func-

tion normally when used in extremely hot or 

cold weather.

When “Rear Cross Traffic Alert Mal-

function Visit Your Dealer” is shown on 

the multi-information display

There may be a sensor malfunction or mis-

aligned. Have the vehicle inspected at your 

Lexus dealer.

Radar sensors

P.258

Operation of the RCTA function

The RCTA function uses 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 sound-
ing 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 Multimedia Display.

This illustration shows an example of 
a vehicle approaching from both 
sides of the vehicle

Turning the RCTA function 
on/off

RCTA function

A
B

269

4-5. Using the driving support systems

4

Driving

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 engine switch is in ON.

The RCTA function is on.

The shift lever is in R.

The vehicle speed is less than approxi-

mately 5 mph (8 km/h).

The approaching vehicle speed is 

between approximately 5 mph (8 km/h) 

and 18 mph (28 km/h).

Adjusting the buzzer volume

The buzzer volume can be adjusted on the 

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

settings. (

P.83)

1

Press the meter control switch to select 

.

2

Press the meter control switch to select 

“Vehicle Settings”.

3

Select “RCTA Volume” and then press 

.

Each time the switch is pressed, the volume 

level will change between 1, 2, and 3.

Muting a buzzer temporarily

A mute button will be displayed on the 
multi-information display and Multimedia 
Display when vehicles or objects are 
detected. To mute the buzzer, press 

 or 

.

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

When the shift lever 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 

Approaching vehi-

cle speed

 Approximate 

alert distance

18 mph (28 km/h) 

(fast)

65 ft. (20 m)

5 mph (8 km/h) 

(slow)

18 ft. (5.5 m)

A

270

4-5. Using the driving support systems

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, 
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 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 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

When towing a trailer

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

271

4-5. Using the driving support systems

4

Driving

When a vehicle turns into the detection 

area

Situations in which the system may 

operate even if there is no possibility of a 

collision

Instances of the RCTA function unneces-

sarily detecting a vehicle and/or object may 

increase in the following situations:

When the parking space faces a street 

and vehicles are being driven on the 

street

When the distance between your vehicle 

and metal objects, such as a guardrail, 

wall, sign, or parked vehicle, which may 

reflect electrical waves toward the rear of 

the vehicle, is short

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 a vehicle passes by the side of your 

vehicle

When a detected vehicle turns while 

approaching the vehicle

When there are spinning objects near 

your vehicle such as the fan of an air con-

ditioning unit

When water is splashed or sprayed 

toward the rear bumper, such as from a 

sprinkler

Moving objects (flags, exhaust fumes, 

large rain droplets or snowflakes, rain 

water on the road surface, etc.)

When the distance between your vehicle 

and a guardrail, wall, etc., that enters the 

detection area is short

Gratings and gutters

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

272

4-5. Using the driving support systems

Pedestrian detection icon

Displayed automatically when a pedestrian 
is detected.

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

P.83)

1

Press the meter control switch to 
select .

2

Press the meter control switch to 
select “RCD” and then press 

.

When the RCD function is disabled, the 

RCD OFF indicator (

P.76) illuminates.

RCD (Rear Camera Detec-
tion) function

When the vehicle is backing up, the 
rear camera detection function can 
detect pedestrians in the detection 
area behind the vehicle. If a pedes-
trian is detected, a buzzer will 
sound and an icon will be displayed 
on the Multimedia Display to 
inform the driver of the pedestrian.

WARNING

Cautions regarding the use of the 

system

The recognition and control capabilities 

for this system are limited.
The driver should always drive safely by 

always being responsible without over 

relying on the system and have a under-

standing of the surrounding situations.

To ensure the system can operate 

properly

Observe the following, otherwise there is 

the danger that could lead to an acci-

dent.

Always clean the camera without 

damaging it.

Do not install market electronic parts 

(such as Illuminated license plate, fog 

lamps, etc.) in the camera vicinity.

Do not subject the camera vicinity to 

strong impacts. If the vicinity is sub-

jected to a strong impact, have the 

vehicle inspected by your Lexus 

dealer.

Do not disassemble, remodel or paint 

the camera.

Do not attach accessories or stickers 

to the camera.

Do not install market protection parts 

(bumper trim, etc.) to the rear bumper.

Maintain suitable tire air pressure.

Make sure the back door is completely 

closed.

RCD function is turned off

In the following situations the system 

turns off. The RCD function may not 

operate properly and thus there is the 

danger that an accident may occur.

The contents mentioned above are not 

observed.

Suspensions other than Lexus genu-

ine parts are installed.

Multimedia Display

Turning the RCD function on/off

A

273

4-5. Using the driving support systems

4

Driving

If the rear camera detection function 
detects a pedestrian in the detection 
area, the buzzer and pedestrian detec-
tion will operate as follows:

If a pedestrian is detected in area 

Buzzer: Sounds repeatedly
Pedestrian detection icon: Blinks 3 
times and then stays on

If a pedestrian is detected in area 

Buzzer (When the vehicle is sta-
tionary): Sounds 3 times
Buzzer (When the vehicle is back-
ing up, when a pedestrian 
approaches the rear of the vehicle): 
Sounds repeatedly
Pedestrian detection icon: Blinks 3 
times and then stays on

If the system determines that your 
vehicle may collide with a pedes-
trian in area 
Buzzer: Sounds repeatedly

Pedestrian detection icon: Blinks 3 
times and then stays on

The rear camera detection function is 

operational when

The engine switch is in ON.

RCD function is on.

The shift position is in R.

Adjusting the buzzer volume

The buzzer volume can be adjusted on the 

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

settings. (

P.83)

1

Press the meter control switch to select 

.

2

Press the meter control switch to select 

“Vehicle Settings”.

3

Select “RCD Volume” and then press 

.

Each time the switch is pressed, the volume 

level will change between 1, 2, and 3.

Muting a buzzer

A mute button will be displayed on the 
multi-information display and Multimedia 
Display when an object is detected. To 
mute the buzzer, press 

 or 

The buzzers for the intuitive parking assist, 
RCTA function and RCD function will be 
muted simultaneously.
Mute will be canceled automatically in the 

following situations:

When the shift lever 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.

When a pedestrian is detected

A

A

B

B

C

C

274

4-5. Using the driving support systems

If “Rear Camera Detection Unavailable 

Remove the Dirt of Rear Camera” is 

displayed on the multi-information dis-

play

The rear camera lens may be dirty or cov-

ered with snow or ice. In such cases, if it is 

removed from the rear camera lens, the 

system should return to normal. (It may be 

necessary to drive the vehicle for some time 

before the system returns to normal.)

If “Rear Camera Detection Unavailable 

See Owner’s Manual” is displayed on 

the multi-information display

If this message is displayed after the bat-

tery has been disconnected and recon-

nected, fully turn the steering wheel to 

the left and then the right on level ground.

If this message is displayed only when the 

R shift position is selected, the rear cam-

era lens may be dirty. Clean the rear 

camera lens.

Situations in which the system may not 

operate properly

Some pedestrians, such as the following, 

may not be detected by the rear camera 

detection function, preventing the func-

tion from operating properly:

• Pedestrians who are bending forward or 

squatting

• Pedestrians who are lying down

• Pedestrians who are running

• Pedestrians who suddenly enter the 

detection area

• People riding a bicycle, skateboard, or 

other light vehicle

• Pedestrians wearing oversized clothing 

such as a rain coat, long skirt, etc., making 

their silhouette obscure

• Pedestrians whose body is partially hid-

den by an object, such as a cart or 

umbrella

• Pedestrians which are obscured by dark-

ness, such as at night

In some situations, such as the following, 

pedestrians may not be detected by the 

rear camera detection function, prevent-

ing the function from operating properly:

• When backing up in inclement weather 

(rain, snow, fog, etc.)

• When the rear camera is obscured (dirt, 

snow, ice, etc. are attached) or scratched

• When a very bright light, such as the sun, 

or the headlights of another vehicle, 

shines directly into the rear camera

• When backing up in a place where the 

surrounding brightness changes sud-

denly, such as at the entrance or exit of a 

garage or underground parking lot

• When backing up in a dim environment 

such as during dusk or in an underground 

parking lot

• When the camera position and direction 

are deviated

• When a towing hook is attached

• When water droplets are flowing on the 

camera lens

• When the vehicle height is extremely 

changed (nose up, nose down)

• When tire chains or an emergency tire 

puncture repair kit are used

Situations in which the system may 

operate unexpectedly

Even though there are no pedestrians in 

the detection area, some objects, such as 

the following, may be detected, possibly 

causing the rear camera detection func-

tion to operate.

• Three dimensional objects, such as a 

pole, traffic cone, fence, or parked vehi-

cle

• Moving objects, such as a car or motor-

cycle

• Objects moving toward your vehicle 

when backing up, such as flags or pud-

dles (or airborne matter, such as smoke, 

steam, rain, or snow)

• Cobblestone or gravel roads, tram rails, 

road repairs, white lines, pedestrian 

crossings or fallen leaves on the road

• Metal covers (gratings), such as those 

used for drainage ditches

• Objects reflected in a puddle or on a wet 

road surface

• Shadows  on  the  road

In some situations, such as the following, 

the rear camera detection function may 

operate even though there are no pedes-

trians in the detection area.

• When backing up toward the roadside or 

a bump on the road

• When backing up toward an 

incline/decline

• If the rear of the vehicle is raised or low-

ered due to the carried load

275

4-5. Using the driving support systems

4

Driving

• If a bumper protector, such as an addi-

tional trim strip, is installed to the rear 

bumper

• If the orientation of the rear camera has 

been changed

• If a towing eyelet is installed to the rear of 

the vehicle

• When water is flowing over the rear cam-

era lens

• When the rear camera is obscured (dirt, 

snow, ice, etc. are attached) or scratched

• If there is a flashing light in the detection 

area, such as the emergency flashers of 

another vehicle

• When tire chains or an emergency tire 

puncture repair kit are used

Situations in which the rear camera 

detection function may be difficult to 

notice

• The buzzer may be difficult to hear if the 

surrounding area is noisy, the volume of 

the audio system volume is high, the air 

conditioning system is being used, etc.

• If the temperature in the cabin is 

extremely high or low, the Multimedia 

Display may not operate correctly.

Parking Support Brake function 
(Static Objects Front and Rear of 
the Vehicle)

P.280

Parking Support Brake function 
(Moving Vehicles Rear of the 
Vehicle)

P.283

Parking Support Brake function 
(Pedestrians Rear of the Vehicle)

P.285

PKSB (Parking Support 
Brake)

The Parking Support Brake 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 or 
pedestrian is high, a warning oper-
ates to urge the driver to take eva-
sive action. If the system 
determines that the possibility of a 
collision with a detected object or 
pedestrian is extremely high, the 
brakes are automatically applied to 
help avoid the collision or help 
reduce the impact of the collision.

PKSB (Parking Support Brake) 
system

276

4-5. Using the driving support systems

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

P.83)

1

Press the meter control switch to 
select .

2

Press the meter control switch to 
select 

 and then press 

.

When the Parking Support Brake is dis-

abled, the PKSB OFF indicator (

P.76) 

illuminates.

WARNING

Cautions regarding the use of the 

system

Do not overly rely on the system, as 

doing so may lead to an accident.
Always drive while checking the safety of 

the surroundings of the vehicle.
Depending on the vehicle and road con-

ditions, weather, etc., the system may not 

operate.
The detection capabilities of sensors and 

radars are limited. Always drive while 

checking the safety of the surroundings 

of the vehicle.

The driver is solely responsible for safe 

driving. Always drive carefully, taking 

care to observe your surroundings. 

The Parking Support Brake system is 

designed to provide support to lessen 

the severity of collisions. However, it 

may not operate in some situations.

The Parking Support Brake system is 

not designed to stop the vehicle com-

pletely. Additionally, even if the system 

has stopped the vehicle, it is necessary 

to depress the brake pedal immedi-

ately as brake control will be canceled 

after approximately 2 seconds.

It is extremely dangerous to check the 

system operations by intentionally 

driving the vehicle into the direction of 

a wall, etc. Never attempt such actions.

When to disable the Parking Support 

Brake

In the following situations, disable the 

Parking Support Brake as the system 

may operate even though there is no 

possibility of a collision.

When inspecting the vehicle using a 

chassis roller, chassis dynamo or free 

roller

When loading the vehicle onto a boat, 

truck or other transport vessel

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 

lowered due to the carried load

When equipment that may obstruct a 

sensor is installed, such as a towing 

eyelet, bumper protector (an addi-

tional trim strip, etc.), bicycle carrier, 

or snow plow

When using automatic car washing 

devices

If the vehicle cannot be driven in a sta-

ble manner, such as when the vehicle 

has been in an accident or is malfunc-

tioning

When the vehicle is driven in a sporty 

manner or off-road

When the tires are not properly 

inflated

When the tires are very worn

When tire chains, a compact spare tire 

or an emergency tire puncture repair 

kit are used.

When your vehicle is towing a trailer 

(with towing hitch) or during emer-

gency towing

Enabling/Disabling the Parking 
Support Brake

277

4-5. Using the driving support systems

4

Driving

To re-enable the system, select 

 on the 

multi-information display, select 

 and 

turn it on.
If the system is disabled, it will remain off 

even if the engine switch is turned to ON 

after the engine switch has been turned off.

If the four-wheel drive control switch is 

in L4

Parking Support Brake will be turned off 

automatically.

If the engine output restriction control 
or brake control operates, a buzzer will 
sound and a message will be displayed 
on the multi-information and head-up 
display (if equipped), Multimedia Dis-
play, to alert the driver.

Depending on the situation, engine output 
restriction control will operate to either 
limit acceleration or restrict output as 
much as possible.

Engine output restriction control is 
operating (acceleration restriction)

Acceleration greater than a certain 
amount is restricted by the system.
Multimedia Display: No warning displayed
Multi-information display: “Object 
Detected Acceleration Reduced”
Head-up display (if equipped): No warning 
displayed
PKSB OFF indicator: Not illuminated
Buzzer: Does not sound

Engine output restriction control is 
operating (output restricted as 
much as possible)

The system has determined that stronger-
than-normal brake operation is necessary.
Multimedia Display: “BRAKE!”
Multi-information display and head-up dis-
play (if equipped): “BRAKE!”
PKSB OFF indicator: Not illuminated
Buzzer: Short beep

Brake control is operating

The system determined that emergency 
braking is necessary.
Multimedia Display: “BRAKE!”
Multi-information display and head-up dis-
play (if equipped): “BRAKE!”
PKSB OFF indicator: Not illuminated
Buzzer: Short beep

Vehicle stopped by system opera-
tion

The vehicle has been stopped by brake 
control operation.
Multimedia Display: “Press Brake Pedal”
Multi-information display and head-up dis-
play (if equipped): “Switch to Brake” (If the 
accelerator pedal is not depressed, “Press 
Brake Pedal” will be displayed.)
PKSB OFF indicator: Illuminated
Buzzer: Short beep

If the Parking Support Brake deter-
mines that a collision with a detected 
object is possible, the engine output 
will be restricted to restrain any 
increase in the vehicle speed. (Engine 
output restriction control: See figure 
2.)
Additionally, if the accelerator pedal 
continues to be depressed, the brakes 

Display and buzzer for engine 
output restriction control and 
brake control

System overview

278

4-5. Using the driving support systems

will be applied automatically to reduce 
the vehicle speed. (Brake control: See 
figure 3.)

Figure 1: When the PKSB (Parking 
Support Brake) is not operating

Engine output

Braking force

Time

Figure 2: When engine output 
restriction control operates

Engine output

Braking force

Time

Engine output restriction control 
begins operating (System deter-
mines that possibility of collision 
with detected object is high)

Figure 3: When engine output 
restriction control and brake control 

operates

Engine output

Braking force

Time

Engine output restriction control 
begins operating (System deter-
mines that possibility of collision 
with detected object is high)

Brake control begins operating 
(System determines that possibility 
of collision with detected object is 
extremely high)

If the Parking Support Brake has oper-

ated

If the vehicle is stopped due to operation of 

the Parking Support Brake, the Parking 

Support Brake will be disabled and the 

PKSB OFF indicator will illuminate. If the 

Parking Support Brake operates unneces-

sarily, brake control can be canceled by 

depressing the brake pedal or waiting for 

approximately 2 seconds for it to automati-

cally be canceled. Then, the vehicle can be 

operated by depressing the accelerator 

pedal.

Re-enabling the Parking Support Brake

To re-enable the Parking Support Brake 

when it is disabled due to operation of the 

Parking Support Brake, either enable the 

system again (

P.276), or turn the engine 

switch off and then back to ON.

Additionally, if any of the following condi-

tions are met, the system will be re-enabled 

A
B
C

A
B
C
D

A
B
C
D

E

279

4-5. Using the driving support systems

4

Driving

automatically and the PKSB OFF indicator 

will turn off:

The P shift position is selected

The object is no longer detected in the 

traveling direction of the vehicle

The traveling direction of the vehicle 
changes

*

*

: Except when the Parking Support Brake 

function (Pedestrians Rear of the Vehi-
cle) operated.

If “Parking Support Brake Unavailable” 

is displayed on the multi-information 

display and the PKSB OFF indicator 

comes on

If the vehicle is stopped due to operation of 

the Parking Support Brake, the Parking 

Support Brake will be disabled and the 

PKSB OFF indicator will illuminate.

A sensor may be covered with water 

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

water drops, ice, snow, dirt, etc., from the 

sensor to return the system to normal.

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 this message is displayed only when the 

R shift position is selected, the rear cam-

era lens may be dirty. Clean the camera 

lens. If this message is displayed when the 

shift position is any position other than R, 

a sensor on the front or rear bumper may 

be dirty. Clean the sensors and their sur-

rounding area on the bumpers.

If this message continues to be displayed 

even after cleaning the sensor, or is dis-

played even though the sensor is clean, 

have the vehicle inspected by your Lexus 

dealer.

If a battery terminal has been discon-

nected 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 

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

280

4-5. Using the driving support systems

This function will operate in situations such as the following if an object is detected 
in the traveling direction of the vehicle.

When traveling at a low speed and the brake pedal is not depressed, or is 
depressed late

Parking Support Brake function (Static Objects Front and 
Rear of the Vehicle)

If the sensors detect a static object, such as a wall, in the traveling direction of 
the vehicle and the system determines that a collision may occur due to the 
vehicle suddenly moving forward due to an accidental accelerator pedal 
operation, the vehicle moving the unintended direction due to the wrong shift 
position being selected, or while parking or traveling at low speeds, the sys-
tem will operate to lessen the impact with the detected static object and 
reduce the resulting damage.

Examples of function operation

281

4-5. Using the driving support systems

4

Driving

When the accelerator pedal is depressed excessively

When the vehicle moves in the unintended direction due to the wrong shift 
position being selected

P.261

Types of sensors

WARNING

To ensure the system can operate 

properly

P.262

If the Parking Support Brake function 

(Static Objects Front and Rear of the 

Vehicle) operates unnecessarily, 

such as at a railroad crossing

P.278

Notes when washing the vehicle

P.262

282

4-5. Using the driving support systems

The Parking Support Brake function 

(Static Objects Front and Rear of the 

Vehicle) will operate when

The function will operate when the PKSB 

OFF indicator is not illuminated (

P.74, 

76) and all of the following conditions are 

met:

Engine output restriction control

• The Parking Support Brake is enabled.

• The vehicle speed is approximately 9 

mph (15 km/h) or less.

• There is a static object in the traveling 

direction of the vehicle and approxi-

mately 6 to 13 ft. (2 to 4 m) away.

• The Parking Support Brake determines 

that a stronger-than-normal brake oper-

ation is necessary to avoid a collision.

Brake control

• Engine output restriction control is oper-

ating

• The Parking Support Brake determines 

that an immediate brake operation is 

necessary to avoid a collision.

The Parking Support Brake function 

(Static Objects Front and Rear of the 

Vehicle) will stop operating when

The function will stop operating if any of the 

following conditions are met:

Engine output restriction control

• The Parking Support Brake is disabled.

• The system determines that the collision 

has become avoidable with normal brake 

operation.

• The static object is no longer approxi-

mately 6 to 13 ft. (2 to 4 m) away from the 

vehicle or in the traveling direction of the 

vehicle.

Brake control

• The Parking Support Brake is disabled.

• Approximately 2 seconds have elapsed 

since the vehicle was stopped by brake 

control.

• The brake pedal is depressed after the 

vehicle is stopped by brake control.

• The static object is no longer approxi-

mately 6 to 13 ft. (2 to 4 m) away from the 

vehicle or in the traveling direction of the 

vehicle.

Detection range of the Parking Support 

Brake function (Static Objects Front 

and Rear of the Vehicle)

The detection range of the Parking Support 

Brake function (Static Objects Front and 

Rear of the Vehicle) differs from the detec-

tion range of the intuitive parking assist. 

(

P.265) Therefore, even if the intuitive 

parking assist detects an object and pro-

vides a warning, the Parking Support Brake 

function (Static Objects Front and Rear of 

the Vehicle) may not start operating.

Situations in which the system may not 

operate properly

P.263

Situations in which the system may 

operate even if there is no possibility of a 

collision

P.264

283

4-5. Using the driving support systems

4

Driving

This function will operate in situations such as the following if a vehicle is detected 
in the traveling direction of the vehicle.

When reversing, a vehicle is approaching and the brake pedal is not 
depressed, or is depressed late

P.258

The Parking Support Brake function 

(Moving Vehicles Rear of the Vehicle) 

will operate when

The function will operate when the PKSB 

OFF indicator is not illuminated (

P.74, 

76) and all of the following conditions are 

met:

Engine output restriction control

• The Parking Support Brake is enabled.

• The vehicle speed is approximately 9 

mph (15 km/h) or less.

• Vehicles are approaching from the right 

or left at the rear of the vehicle at a travel-

ing speed of approximately 5 mph (8 

Parking Support Brake function (Moving Vehicles Rear of the 
Vehicle)

If a rear radar sensor detects a vehicle approaching from the right or left at 
the rear of the vehicle and the system determines that the possibility of a colli-
sion is high, this function will perform brake control to reduce the likelihood of 
an impact with the approaching vehicle.

Examples of function operation

Types of sensors

WARNING

To ensure the system can operate 

properly

P.258

 

 

 

 

 

 

 

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