Lexus LS (2022 year). Manual in english - page 18

298

4-5. Using the driving support systems

: If equipped

Meter control switches

Turning the RCTA function on/off.
When the RCTA function is disabled, the
RCTA OFF indicator illuminates.

Outside rear view mirror indicators

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

Center Display

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



P.299) for the detected

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

RCTA buzzer

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

RCTA (Rear crossing 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

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.286)

■

To ensure the system can operate

properly



P.287

System components

299

4-5. Using the driving support systems

Driving

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

Use the meter control switches to ena-
ble/disable the RCTA function.
(



P.82)

Press

to select

Press

to select “PKSA”

and then press

Press

to select “RCTA”

and then press

When the RCTA function is disabled, the

RCTA OFF indicator (



P.70) illuminates.

(Each time the engine switch is turned off

then changed to IGNITION ON mode,

the RCTA function will be enabled auto-

matically.)

■

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 “RCTA Not Available” is shown

on the multi-information display

Water, snow, mud, etc., may be attached to

the rear bumper around the sensors.

(



P.287) Removing the water, snow, mud,

etc., from the attached to the rear bumper

around the sensors to normal.
Additionally, the function may not function

normally when used in extremely hot or

cold environments.

■

Rear side radar sensors



P.287

■

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):
Vehicles are approaching from both
sides of the vehicle

Turning the RCTA function
on/off

RCTA function

A
B

300

4-5. Using the driving support systems

■

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 IGNITION ON

mode.

●

The RCTA function is on.

●

The shift position is in R.

●

The vehicle speed is approximately 15

km/h (9 mph) or less.

●

The approaching vehicle speed is

between approximately 8 km/h (5 mph)

and 56 km/h (35 mph).

■

Setting the buzzer volume

The buzzer volume can be adjusted on the

multi-information display. (



P.291)

■

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,
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:

Approaching vehi-

cle speed

Approximate

alert distance

56 km/h (35 mph)

(fast)

40 m (131 ft.)

8 km/h (5 mph)

(slow)

5.5 m (18 ft.)

301

4-5. Using the driving support systems

Driving

●

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

●

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

●

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-

sary 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

302

4-5. Using the driving support systems

●

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

303

4-5. Using the driving support systems

Driving

: If equipped

Pedestrian detection icon

Displayed automatically when a pedestrian
is detected.

RCD OFF icon

When the RCD function is disabled, the
RCD OFF icon illuminates. (Each time the
engine switch is turned off then changed to
IGNITION ON mode, the RCD function
will be enabled automatically.)

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 Center Display to inform the
driver of the pedestrian.

WARNING

■

Cautions regarding the use of the sys-

tem

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 with damag-

ing 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 at any authorized

Lexas retailer or Lexas authorized

repairer, or any reliable repairer.

●

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 trunk and back doors

are 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 Lexas genuine

parts are installed.

Center Display

304

4-5. Using the driving support systems

Use the meter control switches to ena-
ble/disable the RCD function. (



P.82)

Press

to select

Press

to select “PKSA”

and then press

Press

to select “RCD”

and then press

When the RCD function is disabled, the

RCD OFF indicator (



P.70) illuminates.

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 IGNITION ON

mode.

●

RCD function is on.

●

The shift position is in R.

■

Setting the buzzer volume

The buzzer volume can be adjusted on the

multi-information display. (



P.291)

■

If “Rear Camera Detection Unavailable

Remove the Dirt of Rear Camera” is dis-

played on the multi-information display

A rear camera lens may be dirty or covered

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

removed from the rear camera lens, the sys-

tem should return to normal. (It may be nec-

essary to drive the vehicle for some time

before the system returns to normal.)

■

If “Rear Camera Detection Unavaila-

ble” is displayed on the multi-informa-

tion 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

Turning the RCD function on/off

When a pedestrian is detected

305

4-5. Using the driving support systems

Driving

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 is 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

• 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 a tire chains or an emergency tire

puncture repair kit is used

●

Situations in which the rear camera

detection function may be difficult to

notice

306

4-5. Using the driving support systems

• If 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 audio system

screen may not operate correctly.

: If equipped

■

Parking Support Brake function
(static objects)

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



P.311)

■

Parking Support Brake function
(rear-crossing vehicles) (if
equipped)

Rear radar sensors are used to detect
approaching vehicles in the detection
area behind the vehicle when backing
up. (



P.313)

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 a collision with a
detected object or pedestrian is
high, a warning operates to urge
the driver to take evasive action. If
the system determines that the pos-
sibility 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 colli-
sion.

PKSB (Parking Support Brake)
system

307

4-5. Using the driving support systems

Driving

■

Parking Support Brake function
(rear pedestrians) (if equipped)

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



P.315)

WARNING

■

Cautions regarding the use of the sys-

tem

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,

radars and camera are limited. Always

drive while checking the safety of the

surroundings of the vehicle.

●

Do not attempt to test the operation of

this system by driving the vehicle

toward another vehicle, a person or

detected object, as it may not operate

properly, possibly leading to an acci-

dent.

●

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 a tire chains, compact spare tire

or an emergency tire puncture repair

kit is used

308

4-5. Using the driving support systems

The Parking Support Brake can be
enabled/disabled on the multi-informa-
tion display. All of the Parking Support
Brake functions (static objects,
rear-crossing vehicles, and rear pedes-
trians) are enabled/disabled simultane-
ously.
Use the meter control switches to ena-
ble/disable the parking support brake.
(



P.82)

Press

to select

Press

to select

and then press

When the Parking Support Brake is disa-

bled, the PKSB OFF indicator (



P.70)

illuminates.
To re-enable the system when it was disa-
bled, select

on the multi-information

display, select

and then On. If disa-

bled using this method, the system will not

be re-enabled by turning the engine switch

off and then to IGNITION ON mode.

If the engine output restriction control
or brake control operates, a buzzer will
sound and a message will be displayed
on the Center Display and multi-infor-
mation display, 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.
On vehicles with a head-up display, the
head-up display will display the same mes-
sage as the multi-information display.



Engine output restriction control is
operating (acceleration restriction)

Acceleration greater than a certain
amount is restricted by the system.
Center Display: No warning displayed
Multi-information display: “Object
Detected Acceleration Reduced”
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 stron-
ger-than-normal brake operation is neces-
sary.
Center Display: “BRAKE!”
Multi-information display: “BRAKE!”
PKSB OFF indicator: Not illuminated
Buzzer: Short beep



Brake control is operating

NOTICE

■

If “Parking Support Brake Unavaila-

ble” is displayed on the multi-informa-

tion display

If this message is displayed immediately

after the engine switch is changed to

IGNITION ON mode, operate the vehi-

cle carefully, paying attention to your

surroundings. It may be necessary to

drive the vehicle for a certain amount of

time before the system returns to normal.

(If the system is not return to normal after

driving for a while, clean the rear camera

lens.)

Enabling/Disabling the Parking
Support Brake

Displays and buzzers for engine
output restriction control and
brake control

309

4-5. Using the driving support systems

Driving

The system determined that emergency
braking is necessary.
Center Display: “BRAKE!”
Multi-information display: “BRAKE!”
PKSB OFF indicator: Not illuminated
Buzzer: Short beep



Vehicle stopped by system opera-
tion

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

If the Parking Support Brake deter-
mines that a collision with a detected
object or pedestrian is possible, the
engine output will be restricted to
restrain any increase in the vehicle
speed. (Engine output restriction con-
trol: See figure 2.)
Additionally, if the accelerator pedal
continues to be depressed, the brakes
will be applied automatically to reduce
the vehicle speed. (Brake control: See
figure 3.)



Figure 1 When the PKSB (Parking
Support Brake) is disabled

Engine output
Braking force
Time



Figure 2 When engine output
restriction control operates



Figure 3 When brake control oper-
ates

System overview

A
B
C

A
B
C
D

310

4-5. Using the driving support systems

Engine output
Braking force
Time
Engine output restriction control
begins operating
System determines that possibility
of collision with detected object is
high
Engine output reduced
System determines that possibility
of collision with detected object is
extremely high
Brake control begins operating
Brake control strength increased
Example: Multi-information display:
“BRAKE!”
Example: Multi-information display:
“Switch to Brake”

■

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 has been disabled due to operation

of the Parking Support Brake, either enable

the system again (



P.308), or turn the

engine switch off and then back to IGNI-

TION ON mode.
Additionally, if any of the following condi-

tions are met, the system will be re-enabled

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 (rear pedestrians) operated.

■

If “Parking Support Brake Unavailable”

is displayed on the multi-information

display

●

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.

●

Initialization may not have been per-

formed after a battery terminal was dis-

connected and reconnected. Initialize the

system. (



P.311)

If this message continues to be displayed

even after initialization, have the vehicle

inspected by any authorized Lexus

retailer or Lexus authorized repairer, or

any reliable repairer.

■

If “Parking Support Brake Unavailable”

and “Parking Assist Unavailable” are

displayed on the multi-information dis-

play

Water may be continuously flowing over the

sensor surface, such as in a heavy rain.

When the system determines that it is nor-

A
B
C
D

311

4-5. Using the driving support systems

Driving

mal, the system will return to normal.

■

If “Parking Support Brake Unavailable”

and “Clean Parking Assist Sensor” are

displayed on the multi-information dis-

play

●

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. 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 any author-

ized Lexus retailer or Lexus authorized

repairer, or any reliable repairer.

●

A sensor may be frozen. Once the ice

melts, the system will return to normal.

■

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 35 km/h (22 mph) or more.

Additionally, for vehicles with the Parking

Support Brake function, turn the steering

wheel fully to the left and right with the vehi-

cle stopped.

: If equipped

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 func-
tion (static objects)

If the sensors detect a static object,
such as a wall, in the travelling
direction of the vehicle and the sys-
tem determines that a collision may
occur due to the vehicle suddenly
moving forward due to an acciden-
tal 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 system will operate to lessen
the impact with the detected static
object and reduce the resulting
damage.

Examples of function operation

312

4-5. Using the driving support systems



When the accelerator pedal is
depressed excessively



When the vehicle moves in the unin-
tended direction due to the wrong
shift position being selected



P.292

■

The Parking Support Brake function

(static object) will operate when

The function will operate when the PKSB

OFF indicator is not illuminated (



P.72)

and all of the following conditions are met:

●

Engine output restriction control

• The Parking Support Brake is enabled.

• The vehicle speed is approximately 15

km/h (9 mph) or less.

• There is a static object in the traveling

direction of the vehicle and approxi-

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

• The Parking Support Brake determines

that a stronger-than-normal brake opera-

Types of sensors

WARNING

■

To ensure the system can operate

properly



P.293

■

If the Parking Support Brake function

(static objects) operates unnecessar-

ily, such as at a railroad crossing



P.310

■

Notes when washing the vehicle



P.294

313

4-5. Using the driving support systems

Driving

tion 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 nec-

essary to avoid a collision.

■

The Parking Support Brake function

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

vehicle or in the traveling direction of the

vehicle.

■

Detection range of the Parking Support

Brake function (static objects)

The detection range of the Parking Support

Brake function (static objects) differs from

the detection range of the Lexus parking

assist-sensor. (



P.297) Therefore, even if

the Lexus parking assist-sensor detects an

object and provides a warning, the Parking

Support Brake function (static objects) may

not start operating.

■

Situations in which the system may not

operate properly



P.295

■

Situations in which the system may

operate even if there is no possibility of a

collision



P.295

: If equipped

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.287

Parking Support Brake func-
tion (rear-crossing vehicles)

If a rear radar sensor detects a vehi-
cle approaching from the right or
left at the rear of the vehicle and the
system determines that the possi-
bility of a collision is high, this func-
tion will perform brake control to
reduce the likelihood of an impact
with the approaching vehicle.

Examples of function operation

Types of sensors

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