Get Driving -> PKSB (Parking Support Brake) Guide for Toyota bZ4X SUV Second Generation (2025-2026)

331

5-4. Using the driving support systems

leaves on the road

PKSB (Parking Sup-

• Metal covers (gratings), such as

those used for drainage ditches

• Objects reflected in a puddle or on

a wet road surface

*

port Brake)

*

: If equipped

• Shadows on the road

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

probability of a collision

with a detected object or

pedestrian is high, a warn-

ing operates to urge the

driver to take evasive

action. If the system deter-

mines 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.

●In some situations, such as the

following, the rear camera detec-

tion function may operate even

though there are no pedestrians in

the detection area.

• When backing up toward the road-

side or a bump on the road

• When backing up toward an

incline/decline

• If the rear of the vehicle is raised

or lowered due to the carried load

• If a bumper protector, such as an

additional trim strip, is installed to

the rear bumper

• If the orientation of the rear cam-

era has been changed

• If a towing eyelet is installed to the

rear of the vehicle

5

• When water is flowing over the

rear camera 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 emer-

gency flashers of another vehicle

• When a tire chains or an emer-

gency tire puncture repair kit is

used

●Situations in which the rear cam-

era detection function may be diffi-

cult to notice

PKSB (Parking Support

Brake) system

• The buzzer may be difficult to hear

if the surrounding area is noisy,

the volume of the audio system

volume is high, the air condition-

ing system is being used, etc.

• If the temperature in the cabin is

extremely high or low, the audio

system screen may not operate

correctly.

■ Static Objects Front and

Rear of the Vehicle (if

equipped)

P.336

■ Moving Vehicles Rear of the

Vehicle (if equipped)

P.339

Owners Manual_USA_M42C01_en

332

5-4. Using the driving support systems

■ Pedestrians Rear of the

●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.

Vehicle (if equipped)

P.342

■ Static Objects Around the

Vehicle (vehicles with

Advanced Park)

■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 colli-

sion.

P.340

WARNING

■Cautions regarding the use of

the system

●When inspecting the vehicle

using a chassis roller, chassis

dynamo or free roller

Do not overly rely on the system,

as doing so may lead to an acci-

dent.

●When loading the vehicle onto a

boat, truck or other transport

vessel

Always drive while checking the

safety of the surroundings of the

vehicle.

●If the suspension has been

modified or tires of a size other

than specified are installed

Depending on the vehicle and

road conditions, weather, etc., the

system may not operate.

●If the front of the vehicle is

raised or lowered due to the

carried load

The detection capabilities of sen-

sors and radars are limited.

Always drive while checking the

safety of the surroundings of the

vehicle.

●When equipment that may

obstruct a sensor is installed,

such as a towing eyelet, bumper

protector (an additional trim

strip, etc.), bicycle carrier, or

snow plow

●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.

●When using automatic car

washing devices

●If the vehicle cannot be driven in

a stable manner, such as when

the vehicle has been in an acci-

dent or is malfunctioning

●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.

●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

Owners Manual_USA_M42C01_en

333

5-4. Using the driving support systems

WARNING

was disabled, select

on the

multi-information display, select

●When a tire chains, compact

spare tire or an emergency tire

puncture repair kit is used

“

PKSB” and then On. If dis-

abled using this method, the sys-

tem will not be re-enabled by

turning the power switch off and

then to ON.

■Precautions for the suspen-

sion

Do not modify the suspension of

the vehicle. If the height or tilt of

the vehicle is changed, the sen-

sors may not be able to detect

detectable objects and the system

may not operate correctly, possi-

bly leading to an accident.

Display and buzzer for EV

system output restriction

control and brake control

If the EV system output restriction

control or brake control operates, a

buzzer will sound and a message

will be displayed on the multi-infor-

mation display and multimedia sys-

tem screen, to alert the driver.

Enabling/Disabling the

Parking Support Brake

The Parking Support Brake can

be enabled/disabled on the

multi-information display. All of

the Parking Support Brake func-

tions (static objects front and

rear of the vehicle, moving vehi-

cles rear of the vehicle, pedestri-

ans rear of the vehicle and static

objects around the vehicle) are

enabled/disabled simultane-

ously.

Depending on the situation, EV

system output restriction control will

operate to either limit acceleration

or restrict output as much as possi-

ble.

5

 EV system output restriction

control is operating (accelera-

tion restriction)

Acceleration greater than a certain

amount is restricted by the system.

Use the meter control switches

to enable/disable the parking

support brake. (P.156)

Multimedia display: No warning dis-

played

Multi-information display: “Object

Detected Acceleration Reduced”

1 Press

or

to select

.

Driving assist information indicator:

Not illuminated

2 Press

Buzzer: Does not sound

“

PKSB” and then press

 EV system output restriction

control is operating (output

restricted as much as possi-

ble)

.

When the Parking Support Brake is

disabled, the driving assist informa-

tion indicator (P.149) illuminates.

The system has determined that

To re-enable the system when it

Owners Manual_USA_M42C01_en

334

5-4. Using the driving support systems

stronger-than-normal brake opera-

tion is necessary.

(EV system output restriction

control: See figure 2.)

Additionally, if the accelerator

pedal continues to be

Multimedia display: “BRAKE!”

Multi-information display: “BRAKE!”

depressed, the brakes will be

applied automatically to reduce

the vehicle speed. (Brake con-

trol: See figure 3.)

Driving assist information indicator:

Not illuminated

Buzzer: Short beep

 Brake control is operating

 Figure 1 When the PKSB

(Parking Support Brake) is not

operating

The system determined that emer-

gency braking is necessary.

Multimedia display: “BRAKE!”

Multi-information display: “BRAKE!”

Driving assist information indicator:

Not illuminated

Buzzer: Short beep

 Vehicle stopped by system

operation

The vehicle has been stopped by

brake control operation.

EV system output

Braking force

Time

Multimedia display: “Press Brake

Pedal”

Multi-information display: “Acceler-

ator Pedal is Pressed Press Brake

Pedal” (If the accelerator pedal is

not depressed, “Press Brake Pedal”

will be displayed.)

 Figure 2 When EV system

output restriction control oper-

ates

Driving assist information indicator:

Illuminated

Buzzer: Sounds repeatedly

System overview

If the Parking Support Brake

determines that a collision with a

detected object or pedestrian is

possible, the EV system output

will be restricted to restrain any

increase in the vehicle speed.

EV system output

Braking force

Owners Manual_USA_M42C01_en

335

5-4. Using the driving support systems

mation indicator will illuminate. If the

Parking Support Brake operates

unnecessarily, brake control can be

canceled by depressing the brake

pedal or waiting for approximately 2

seconds for it to automatically be

canceled. Then, the vehicle can be

operated by depressing the acceler-

ator pedal.

Time

EV system output restriction

control begins operating

(System determines that pos-

sibility of collision with

detected object is high)

■Re-enabling the Parking Sup-

 Figure 3 When EV system

output restriction control and

brake control operates

port Brake

To re-enable the Parking Support

Brake when it has been disabled

due to operation of the Parking Sup-

port Brake, either enable the system

again (P.333), or turn the power

switch off and then back to ON.

Additionally, if any of the following

conditions are met, the system will

be re-enabled automatically and the

driving assist information indicator

will turn off:

●The P shift position is selected

5

●The object is no longer detected in

the traveling direction of the vehi-

cle

EV system output

Braking force

Time

●The traveling direction of the vehi-

*

cle changes

*

: Except when the pedestrian rear

EV system output restriction

control begins operating

(System determines that pos-

sibility of collision with

of the vehicle operated.

■Intuitive parking assist-sensor

buzzer

Regardless of whether the intuitive

parking assist-sensor buzzer is

enabled or not, if the PKSB (Parking

Support Brake) system is enabled,

the front or rear sensors detect a

static object and brake control is

performed, the intuitive parking

assist-sensor buzzer will sound to

notify the driver of the approximate

distance to the object.

detected object is high)

Brake control begins operat-

ing (System determines that

possibility of collision with

detected object is extremely

high)

■If a 12-volt battery terminal has

been disconnected and recon-

nected

■If the Parking Support Brake

has operated

If the vehicle is stopped due to oper-

ation of the Parking Support Brake,

the Parking Support Brake will be

disabled and the driving assist infor-

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

Owners Manual_USA_M42C01_en

Driving -> PKSB (Parking Support Brake) for Your Toyota bZ4X SUV Second Generation (2025-2026)

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