Get When trouble arises -> Warning lights and buzzers Guide for Toyota bZ4X SUV Second Generation (2025-2026)

513

8-2. Steps to take in an emergency

If a warning light turns on or a warning buzzer

sounds

Calmly perform the following actions if any of the warning

lights comes on or flashes. If a light comes on or flashes, but

then goes off, this does not necessarily indicate a malfunc-

tion in the system. However, if this continues to occur, have

the vehicle inspected by your Toyota dealer.

Actions to the warning lights or warning buzzers

■ Brake system warning light (warning buzzer)

Warning light

Details/Actions

Indicates that:

The brake fluid level is low; or

The brake system is malfunctioning

(U.S.A.)

or

 Immediately stop the vehicle in a safe place and con-

tact your Toyota dealer. Continuing to drive the vehi-

cle may be dangerous.

(Canada)

(Red)

■ Brake system warning light

Warning light

Details/Actions

Indicates a malfunction in:

The regenerative braking system;

The electronically controlled brake system; or

The parking brake system

8

(Yellow)

 Have the vehicle inspected by your Toyota dealer

immediately.

■ Charging system warning light^*

Warning light Details/Actions

Indicates a malfunction in the vehicle’s charging system

 Immediately stop the vehicle in a safe place and con-

tact your Toyota dealer.

*

: This light illuminates on the multi-information display with a message.

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514

8-2. Steps to take in an emergency

■ SRS warning light (warning buzzer)

Warning light Details/Actions

Indicates a malfunction in:

The SRS airbag system; or

The seat belt pretensioner system

 Have the vehicle inspected by your Toyota dealer

immediately.

■ ABS warning light

Warning light

Details/Actions

Indicates a malfunction in:

The ABS; or

The brake assist system

(U.S.A.)

or

 Have the vehicle inspected by your Toyota dealer

immediately.

(Canada)

■ Inappropriate pedal operation warning light^*(warning buzzer)

Warning light Details/Actions

When a buzzer sounds:

Indicates a malfunction in:

The Brake Override System;

The Drive-Start Control

 Have the vehicle inspected by your Toyota dealer

immediately.

Indicates that the shift position was changed and Drive-

Start Control was operated while depressing the accelerator

pedal.

 Momentarily release the accelerator pedal.

When a buzzer does not sound:

Indicates that the accelerator and brake pedals are being

depressed simultaneously, and the Brake Override System

is operating.

 Release the accelerator pedal and depress the brake

pedal.

*

: This light illuminates on the multi-information display with a message.

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515

8-2. Steps to take in an emergency

■ Electric power steering system warning light (warning

buzzer)

Warning light

Details/Actions

Indicates a malfunction in the EPS (Electric Power Steer-

ing) system

(Red)

or

 Have the vehicle inspected by your Toyota dealer

immediately.

(Yellow)

■ Traction battery charge warning light

Warning light Details/Actions

Indicates that the remaining charge of the traction battery is

low and charging is required

When the outside temperature is low, this light may turn on

earlier than usual to urge the driver to charge the traction

battery early.

 Charge the traction battery. (P.98)

■ Driver’s and front passenger’s seat belt reminder light (warn-

ing buzzer^*)

Warning light

Details/Actions

Warns the driver and/or front passenger to fasten their seat

belts

8

 Fasten the seat belt.

If the front passenger’s seat is occupied, the front

passenger’s seat belt also needs to be fastened to

make the warning light (warning buzzer) turn off.

*

: Driver’s and front passenger’s seat belt warning buzzer:

The driver’s and front passenger’s seat belt warning buzzer sounds to alert

the driver and front passenger that his or her seat belt is not fastened. If the

seat belt is unfastened, the buzzer sounds intermittently for a certain period

of time after the vehicle reaches a certain speed.

Owners Manual_USA_M42C01_en

516

8-2. Steps to take in an emergency

■ Rear passengers’ seat belt reminder lights (warning buzzer^*)

Warning light

Details/Actions

Warns the rear passengers to fasten their seat belts

 Fasten the seat belt.

*

: Rear passengers’ seat belt warning buzzer:

The rear passengers’ seat belt warning buzzer sounds to alert the rear pas-

senger that his or her seat belt is not fastened. If the seat belt is unfas-

tened, the buzzer sounds intermittently for a certain period of time after the

vehicle reaches a certain speed.

■ Tire pressure warning light

Warning light

Details/Actions

When the light comes on after blinking for approximately 1

minute (a buzzer does not sounds):

Malfunction in the tire pressure warning system

 Have the system checked by your Toyota dealer.

When the light comes on (a buzzer sounds):

Low tire inflation pressure from natural causes

 After the temperature of the tires has lowered suffi-

ciently, check the inflation pressure of each tire and

adjust them to the specified level.(P.513)

Low tire inflation pressure from flat tire

 Immediately stop the vehicle in a safe place and per-

form the necessary actions (P.519)

■ LDA indicator (warning buzzer)

Warning light

Details/Actions

Indicates a malfunction in the LDA (Lane Departure Alert).

 Follow the instructions displayed on the multi-infor-

mation display.

(Orange)

■ LTA indicator (warning buzzer)

Warning light

Details/Actions

Indicates a malfunction in the LTA (Lane Tracing Assist)

 Follow the instructions displayed on the multi-infor-

mation display.

(Orange)

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517

8-2. Steps to take in an emergency

■ Driving assist information indicator

Warning light

Details/Actions

Indicates of the following systems is malfunctioning.

PCS (Pre-Collision System)

LDA (Lane Departure Alert)

 Follow the instructions displayed on the multi-infor-

mation display.

Indicates one of the following systems is malfunctioning or

disabled.

PKSB (Parking Support Brake) (if equipped)

RCD (Rear Camera Detection) (if equipped)

BSM (Blind Spot Monitor) (if equipped)

SEA (Safe Exit Assist) (if equipped)

RCTA (Rear Cross Traffic Alert) (if equipped)

 Follow the instructions displayed on the multi-infor-

mation display.

■ Intuitive parking assist OFF indicator (warning buzzer)

Warning light

Details/Actions

Indicates a malfunction in the Intuitive parking assist func-

tion

 Have the vehicle inspected by your Toyota dealer

immediately.

(Flashes)

(if equipped)

Indicates that the system is temporarily unavailable, possi-

bly due to a sensor being dirty or covered with ice, etc.

 Follow the instructions displayed on the multi-infor-

mation display.

8

■ Cruise control indicator (warning buzzer)

Warning light

Details/Actions

Indicates a malfunction in the cruise control system.

 Follow the instructions displayed on the multi-infor-

mation display.

(Orange)

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518

8-2. Steps to take in an emergency

■ Dynamic radar cruise control indicator (warning buzzer)

Warning light

(Orange)

Details/Actions

Indicates a malfunction in the dynamic radar cruise control

system.

 Follow the instructions displayed on the multi-infor-

mation display.

■ PCS warning light (warning buzzer)

Warning light

Details/Actions

Indicates a malfunction in the PCS (Pre-Collision System).

Follow the instructions displayed on the multi-information

display.

(Flashes or illu-

minates)

 Illuminates when the PCS (Pre-Collision System) or

VSC (Vehicle Stability Control) system is disabled.

■ Slip indicator

Warning light

Details/Actions

Indicates a malfunction in:

The VSC system;

The TRAC system; or

The hill-start assist control system

 Have the vehicle inspected by your Toyota dealer

immediately.

■ Parking brake indicator

Warning light

Details/Actions

It is possible that the parking brake is not fully engaged or

released

(U.S.A.)

(Flashes)

or

 Operate the parking brake switch once again.

This light comes on when the parking brake is not released.

If the light turns off after the parking brake is fully released,

the system is operating normally.

(Canada)

(Flashes)

Owners Manual_USA_M42C01_en

519

8-2. Steps to take in an emergency

■ Brake hold operated indicator

Warning light

Details/Actions

Indicates a malfunction in the brake hold system

 Have the vehicle inspected by your Toyota dealer

(Flashes)

immediately.

■When the tire pressure warning

light comes on

■Warning buzzer

In some cases, the buzzer may not

be heard due to being in a noisy

location or audio sound.

Inspect the tires to check if a tire is

punctured.

If a tire is punctured: P.527

■Front passenger detection sen-

sor, seat belt reminder and

warning buzzer

If none of the tires are punctured:

Turn the power switch off then turn it

to ON. Check if the tire pressure

warning light comes on or blinks.

●If luggage is placed on the front

passenger seat, the front passen-

ger detection sensor may cause

the warning light to flash and the

warning buzzer to sound even if a

passenger is not sitting in the

seat.

 If the tire pressure warning light

blinks for approximately 1 minute

then stays on

There may be a malfunction in the

tire pressure warning system. Have

the vehicle inspected by your Toyota

dealer immediately.

●If a cushion is placed on the seat,

the sensor may not detect a pas-

senger, and the warning light may

not operate properly.

 If the tire pressure warning light

comes on

1 After the temperature of the tires

has lowered sufficiently, check

the inflation pressure of each tire

and adjust them to the specified

level.

2 If the warning light does not turn

off even after several minutes

have elapsed, check that the

inflation pressure of each tire is

at the specified level and perform

the tire inflation pressure setting

procedure. (P.483)

■SRS warning light

This warning light system monitors

the airbag sensor assembly, front

impact sensors, side impact sensors

(front door), side impact sensors

(front), side impact sensors (rear),

driver’s seat position sensor,

driver’s seat belt buckle switch, front

passenger occupant classification

system sensors, “AIR BAG ON”

indicator light, “AIR BAG OFF” indi-

cator light, front passenger’s seat

belt buckle switch, seat belt preten-

sioners, airbags, interconnecting

wiring and power sources. (P.44)

8

If the warning light does not turn off

even after several minutes have

elapsed since performing the tire

inflation pressure setting proce-

dure, have the vehicle inspected by

your Toyota dealer as soon as pos-

sible.

■Electric power steering system

warning light (warning buzzer)

When the 12-volt battery charge

becomes insufficient or the voltage

temporarily drops, the electric power

steering system warning light may

come on and the warning buzzer

may sound.

■The tire pressure warning light

may come on due to natural

causes

The tire pressure warning light may

Owners Manual_USA_M42C01_en

520

8-2. Steps to take in an emergency

come on due to natural causes such

as natural air leaks and tire inflation

pressure changes caused by tem-

perature. In this case, adjusting the

tire inflation pressure will turn off the

warning light (after a few minutes).

●If the tire pressure warning light

comes on even after tire infla-

tion pressure adjustment, it is

probable that you have a flat

tire. Check the tires. If a tire is

flat, repair the flat tire by using

emergency tire puncture repair

kit.

■Conditions that the tire pres-

sure warning system may not

function properly

●Avoid abrupt maneuvering and

braking.

P.474

If the vehicle tires deteriorate,

you could lose control of the

steering wheel or the brakes.

WARNING

■If both the ABS and the brake

system warning lights remain

on

■If a blowout or sudden air

leakage should occur

The tire pressure warning system

may not activate immediately.

Stop your vehicle in a safe place

immediately and contact your Toy-

ota dealer.

■Maintenance of the tires

The vehicle will become

extremely unstable during brak-

ing, and the ABS system may fail,

which could cause an accident

resulting in death or serious injury.

Each tire, including the spare (if

provided), should be checked

monthly when cold and inflated to

the inflation pressure recom-

mended by the vehicle manufac-

turer on the vehicle placard or tire

inflation pressure label (tire and

load information label). (If your

vehicle has tires of a different size

than the size indicated on the

vehicle placard or tire inflation

pressure label [tire and load infor-

mation label], you should deter-

mine the proper tire inflation

pressure for those tires.)

■When the electric power

steering system warning light

comes on

When the light comes on yellow,

the assist to the power steering is

restricted. When the light comes

on red, the assist to the power

steering is lost and handling oper-

ations of the steering wheel

become extremely heavy.

When steering wheel operations

are heavier than usual, grip the

steering wheel firmly and operate

it using more force than usual.

■If the tire pressure warning

light comes on

Be sure to observe the following

precautions.

Failure to do so could cause a

loss of vehicle control and result

in death or serious injury.

●Stop your vehicle in a safe place

as soon as possible. Adjust the

tire inflation pressure immedi-

ately.

Owners Manual_USA_M42C01_en

521

8-2. Steps to take in an emergency

Your vehicle has also been

WARNING

equipped with a TPMS (tire pres-

sure warning system) malfunc-

tion indicator to indicate when the

system is not operating properly.

The TPMS (tire pressure warning

system) malfunction indicator is

combined with the low tire pres-

sure telltale (tire pressure warning

light). When the system detects a

malfunction, the telltale will flash

for approximately one minute and

then remain continuously illumi-

nated. This sequence will con-

tinue upon subsequent vehicle

start-ups as long as the malfunc-

tion exists. When the malfunction

indicator is illuminated, the sys-

tem may not be able to detect or

signal low tire pressure as

As an added safety feature, your

vehicle has been equipped with a

tire pressure monitoring system

(TPMS-tire pressure warning sys-

tem) that illuminates a low tire

pressure telltale (tire pressure

warning light) when one or more

of your tires is significantly under-

inflated. Accordingly, when the

low tire pressure telltale (tire pres-

sure warning light) illuminates,

you should stop and check your

tires as soon as possible, and

inflate them to the proper pres-

sure. Driving on a significantly

under-inflated tire causes the tire

to overheat and can lead to tire

failure. Under-inflation also

reduces fuel efficiency and tire

tread life, and may affect the vehi-

cle’s handling and stopping ability.

intended.

TPMS (tire pressure warning sys-

tem) malfunctions may occur for a

variety of reasons, including the

installation of replacement or

alternate tires or wheels on the

vehicle that prevent the TPMS

(tire pressure warning system)

from functioning properly. Always

check the TPMS (tire pressure

warning system) malfunction tell-

tale after replacing one or more

tires or wheels on your vehicle to

ensure that the replacement or

alternate tires and wheels allow

the TPMS (tire pressure warning

system) to continue to function

properly.

Please note that the TPMS (tire

pressure warning system) is not a

substitute for proper tire mainte-

nance, and it is the driver’s

responsibility to maintain correct

tire pressure, even if under-infla-

tion has not reached the level to

trigger illumination of the TPMS

low tire pressure telltale (tire pres-

sure warning light).

8

NOTICE

■To ensure the tire pressure

warning system operates

properly

Do not install tires with different

specifications or makers, as the

tire pressure warning system may

not operate properly.

Owners Manual_USA_M42C01_en

When trouble arises -> Warning lights and buzzers for Your Toyota bZ4X SUV Second Generation (2025-2026)

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