Toyota Highlander (2022 year). Manual in english — page 18

P.287) If this message contin-

ues to be displayed even after ini-

tialization, have the vehicle

inspected by your Toyota dealer.

■

If “Parking Assist Unavailable

Clean Parking Assist Sensor” is

displayed on the multi-informa-

tion display

A sensor may be covered with ice,

snow, dirt, etc. Remove the ice,

snow, dirt, etc., from the sensor to

return the system to 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 sys-

tem will return to normal.

■

If a battery terminal has been

disconnected and reconnected

The system needs to be initialized.

To initialize the system, drive the

vehicle straight ahead for 5 seconds

or more at a speed of approximately

22 mph (35 km/h) or more.

■

Sensor detection information

●

The following situations may occur

during use.

• The sensor's detection areas are

limited to the areas around the

vehicle front and rear bumpers.

• Depending on the shape of the

object and other factors, the

detection distance may shorten, or

detection may be impossible.

• If an object is extremely close to a

sensor, it may not be detected.

• There will be a short delay

between object detection and dis-

play. Even at low speeds, there is

a possibility that the object will

come within the sensor’s detec-

tion areas before the display is

shown and the warning beep

sounds.

• It might be difficult to hear the

buzzer due to the volume of the

audio system or air flow noise of

the air conditioning system.

• It may be difficult to hear the

buzzer if buzzers for other sys-

tems are sounding.

■

Objects which the system may

not be properly detected

The shape of the object may pre-

vent the sensor from detecting it.

Pay particular attention to the follow-

ing objects:

●

Wires, fences, ropes, etc.

●

Cotton, snow and other materials

that absorb sound waves

●

Sharply-angled objects

●

Low objects

●

Tall objects with upper sections

projecting outwards in the direc-

tion of your vehicle

People may not be detected if they

are wearing certain types of cloth-

ing.

■

Situations in which the system

may not operate properly

Certain vehicle conditions and the

surrounding environment may affect

the ability of a sensor to correctly

detect objects. Particular 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 dis-

play may be displayed abnormally,

or objects, such as a wall, may not

be detected.

●

When a sensor or the area around

a sensor is extremely hot or cold.

288

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 clear-

ance sonar of other vehicles or

other devices which produce ultra-

sonic 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 ultra-

sonic waves (ex. skirts with gath-

ers or frills).

●

If objects draw too close to the

sensor.

●

When a pedestrian is wearing

clothing that does not reflect ultra-

sonic waves (ex. skirts with gath-

ers or frills).

●

When objects that are not perpen-

dicular to the ground, not perpen-

dicular 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 eyelet, bumper pro-

tector (an additional trim strip,

etc.), bicycle carrier, or snow plow.

●

If the front of the vehicle is raised

or lowered 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 a tire chains, compact

spare tire or an emergency tire

puncture repair kit is used.

■

Situations in which the system

may operate even if there is no

possibility of a collision

In some situations, such as the fol-

lowing, 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 rail-

road 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.)

289

4-5. Using the driving support systems

ing

●

A sensor is coated with a sheet of

spray or heavy rain.

●

When driving in inclement weather

such as fog, snow or a sandstorm.

●

When strong winds are blowing.

●

When vehicle horns, vehicle

detectors, motorcycle engines, air

brakes of large vehicles, the clear-

ance sonar of other vehicles or

other devices which produce ultra-

sonic waves are near the vehicle.

●

If the front of the vehicle is raised

or lowered 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, con-

struction 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 a tire chains, compact

spare tire or an emergency tire

puncture repair kit is used.

■

Adjusting the buzzer vol-
ume

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



Press

to select

Press

to select and

then press and hold

Select the 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
when an object is detected. To
mute the buzzer, press

Mute will be canceled automati-
cally in the following situations:



When the shift lever is
changed.



When the vehicle speed
exceeds a certain speed.



When there is malfunction in
a sensor or the system is tem-
porarily unavailable.



When the operating function
is disabled manually.



When the engine switch is
turned off.

Setting the buzzer volume

290

4-5. Using the driving support systems

■

Detection range of the sen-
sors

Approximately 3.3 ft. (100
cm)
Approximately 4.9 ft. (150
cm)
Approximately 2.0 ft. (60 cm)

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

■

Multi-information display, head-up display (if equipped) and
audio system screen

When an object is detected by a sensor, the approximate distance to
the object will be displayed on the multi-information display, audio
system screen, and head-up display (if equipped). (As the distance
to the object becomes short, the distance segments may blink.)



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

(Rear center sensor)

: Automatic buzzer mute function is enabled. (





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

(Front center sensor)

Sensor detection display,
object distance

Multi-information dis-

play

Audio system screen

Head-up display

291

4-5. Using the driving support systems

ing

: Automatic buzzer mute function is enabled. (





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

: Automatic buzzer mute function is enabled. (





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

: Automatic buzzer mute function is enabled. (





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

:Automatic buzzer mute function is disabled. (



:The distance segments will blink slowly.



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

Multi-information dis-

play

Audio system screen

Head-up display

Multi-information dis-

play

Audio system screen

Head-up display

Multi-information dis-

play

Audio system screen

Head-up display

Multi-information dis-

play

Audio system screen

Head-up display

292

4-5. Using the driving support systems

:Automatic buzzer mute function is disabled. (



:The distance segments will blink rapidly.

■

Buzzer operation and dis-
tance to an object

A buzzer sounds when the sen-
sors are operating.



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



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

operate.)

The buzzer sounds volume can
be adjusted. (

P.289)

Multi-information dis-

play

Audio system screen

Head-up display

293

4-5. Using the driving support systems

ing

: If equipped

Meter control switches

Turning the RCTA function on/off.
When the RCTA function is dis-
abled, the RCTA OFF indicator illu-
minates.

Outside rear view mirror indi-
cators

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.

Audio system screen

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



P.296) for the detected side will

be displayed on the audio system
screen. This illustration shows an
example of a vehicle approaching
from both sides of the vehicle.

RCTA buzzer

If a vehicle approaching from the

RCTA (Rear Cross Traf-

fic Alert) function

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

WARNING

■

Cautions regarding the use of

the system

There is a limit to the degree of

recognition 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.278)

■

To ensure the system can

operate properly



P.280

System components

294

4-5. Using the driving support systems

right or left at the rear of the vehicle
is detected, a buzzer will sound.



4.2-inch display

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

P.89)

Press

to select

Press

to select

“RCTA” and then press



7-inch display

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

Press

to select

Press

to select

“RCTA” and then press

When the RCTA function is dis-
abled, the RCTA OFF indicator
(

P.78) illuminates on the

multi-information display. (Each
time the engine switch is turned off
then changed to ON, the RCTA
function will be enabled automati-
cally.)

■

Outside rear view mirror indica-

tor visibility

In strong sunlight, the outside rear

view mirror 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” is shown on the

multi-information display

Water, ice, snow, mud, etc., may be

attached to the rear bumper around

the sensors. (



P.280) Removing

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

the attached to the rear bumper

around the sensors to return the

function to normal.
Additionally, the function may not

Turning the RCTA func-
tion on/off

WARNING

■

Cautions regarding the use of

the function

The driver is solely responsible for

safe driving. Always drive safely,

taking care to observe your sur-

roundings.
The RCTA function is only a sup-

plementary function which alerts

the driver that a vehicle is

approaching from the right or left

at the rear of the vehicle. As the

RCTA function may not function

correctly under certain condi-

tions, the driver’s own visual con-

firmation of safety is necessary.

Over reliance on this function may

lead to an accident resulting

death or serious injury.

NOTICE

■

Before using the RCTA func-

tion

Do not place objects near the sen-

sors.

295

4-5. Using the driving support systems

ing

operate normally when driving in

extremely hot or cold environments.

■

Rear side radar sensors

P.280

■

Adjusting the buzzer vol-
ume

The buzzer volume can be
adjusted on the multi-informa-
tion display.



4.2-inch display

Use the meter control switches
to change settings. (

P.89)

Press

to select

Press

to select

“RCTA” and then press and
hold

Select the volume and then
press

Each time the switch is pressed,

the volume level will change

between 1, 2, and 3.



7-inch display

Use the meter control switches
to change settings. (

Press

to select

Press

to select and

“RCTA” then press and hold

Select the 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
when an object is detected. To
mute the buzzer, press

Mute will be canceled automati-
cally in the following situations:



When the shift lever is
changed.



When the vehicle speed
exceeds a certain speed.



When the operating function
is temporarily canceled.



When the operating function
is disabled manually.



When the engine switch is
turned off.

■

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.

Setting the buzzer volume
(vehicles with a Intuitive
parking assist)

RCTA function

296

4-5. Using the driving support systems

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 displayed on
the audio system screen.



Example (Toyota parking
assist monitor) (if equipped):
Vehicles are approaching
from both sides of the vehicle



Example (Panoramic view
monitor) (if equipped): Vehi-
cles are approaching from
both sides of the vehicle

■

RCTA function detection areas

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

297

4-5. Using the driving support systems

ing

The buzzer can alert the driver
of faster vehicles approaching
from farther away.
Example:

■

The RCTA function is opera-

tional 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 approxi-

mately 5 mph (8 km/h) or less.

●

The approaching vehicle speed is

between approximately 5 mph (8

km/h) and 18 mph (28 km/h).

■

Conditions under which the

system will not detect a vehicle

The RCTA function is not designed

to detect the following types of vehi-

cles 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 vehi-
cle

●

The distance between the sensor

and approaching vehicle gets too

: Depending on the conditions,

detection of a vehicle and/or
object may occur.

■

Situations in which the system

may not operate properly

The RCTA function may not detect

vehicles correctly in the following

situations:

●

When the sensor is misaligned

due to a strong impact to the sen-

sor or its surrounding area

Approaching

vehicle 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)

298

4-5. Using the driving support systems

●

When mud, snow, ice, a sticker,

etc.,is covering the sensor or sur-

rounding 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 vehicle

●

When a vehicle is approaching at

high speed

●

When equipment that may

obstruct a sensor is installed, such

as a towing eyelet, bumper pro-

tector (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 parking spot

●

When there is a significant differ-

ence in height between your vehi-

cle and the vehicle that enters the

detection area

●

When a sensor or the area around

a sensor is extremely hot or cold

●

If the suspension has been modi-

fied 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 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

unnecessary 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

299

4-5. Using the driving support systems

ing

a guardrail, wall, sigh, or parked

vehicle, which may reflect electri-

cal waves toward the rear of the

vehicle, is short

●

When equipment that may

obstruct a sensor is installed, such

as a towing eyelet, bumper pro-

tector (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 conditioning 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 sensor is extremely hot or cold

●

If the suspension has been modi-

fied 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

300

4-5. Using the driving support systems

: If equipped

■

Parking Support Brake
function (static objects) (if
equipped)

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

P.307)

■

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.310)

PKSB (Parking Sup-

port Brake)

The Parking Support Brake
system consists of the fol-
lowing functions that oper-
ate when driving at a low
speed or backing up, such
as when parking. When the
system determines that the
possibility of a collision
with a detected object is
high, a warning operates to
urge the driver to take eva-
sive action. If the system
determines that the possi-
bility of a collision with a
detected object is extremely
high, the brakes are auto-
matically applied to help
avoid the collision or help
reduce the impact of the col-
lision.

PKSB (Parking Support
Brake) system

WARNING

■

Cautions regarding the use of

the system

Do not overly rely on the system,

as doing so may lead to an acci-

dent.
Always drive while checking the

safety of the surroundings of the

vehicle.
Depending on the vehicle and

road conditions, weather, etc., the

system may not operate.
The detection capabilities of sen-

sors 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 sys-

tem is not designed to stop the

vehicle completely. Additionally,

even if the system has stopped

the vehicle, it is necessary to

depress the brake pedal imme-

diately as brake control will be

canceled after approximately 2

seconds.

301

4-5. Using the driving support systems

ing

The Parking Support Brake can
be enabled/disabled on the
multi-information display. All of
the Parking Support Brake func-
tions (static objects and
rear-crossing vehicles) are
enabled/disabled simultane-
ously.
Use the meter control switches
to enable/disable the parking
support brake. (

