Get Driving -> Power (ignition) switch Guide for Toyota bZ4X SUV Second Generation (2025-2026)

231

5-2. Driving procedures

5-2.Driving procedures

illuminated.

Power (ignition)

switch

The EV system can be started from

any power switch mode.

Performing the following

operations when carrying

the electronic key on your

person starts the EV system

or changes power switch

modes.

Starting the EV system

5 Check that the “READY” indi-

cator is illuminated.

1 Check that the charging

cable is disconnected.

(P.105, 113)

The vehicle cannot be driven if the

“READY” indicator is off.

2 Pull the parking brake switch

to check that the parking

brake is set. (P.243)

■Power switch illumination

According to the situation, the

power switch illumination operates

as follows.

5

The parking brake indicator will

come on.

●When driver’s door or front pas-

senger’s door is opened, the

power switch illumination illumi-

nates.

3 Firmly depress the brake

pedal.

●When the power switch is in OFF

and depressing the brake pedal

with carrying the electronic key on

your person, the power switch illu-

mination blinks.

and a message will be dis-

played on the multi-information dis-

play.

If it is not displayed, the EV system

cannot be started.

●When the power switch is in ACC

or ON, the power switch illumina-

tion illuminates.

When the shift position is in N, the

EV system cannot start. Shift the

shift position to P when starting the

EV system. (P.237)

●When the power switch mode is

changed from ACC or ON to OFF,

the power switch illumination illu-

minates for a certain amount of

time. Afterwards, the power switch

illumination turns off.

4 Press the power switch

shortly and firmly.

When operating the power switch,

one short, firm press is enough. It is

not necessary to press and hold the

switch.

■If the EV system does not start

●The immobilizer system may not

have been deactivated. (P.68)

Contact your Toyota dealer.

If the “READY” indicator turns on,

the EV system will operate nor-

mally.

●The charging cable may be con-

nected to the vehicle. (P.89)

Continue depressing the brake

pedal until the “READY” indicator is

●If a message related to start-up is

Owners Manual_USA_M42C01_en

232

5-2. Driving procedures

shown on the multi-information

display, read the message and fol-

low the instructions.

■If there is a malfunction in the

smart key system

If “Smart Key System Malfunction”

is displayed on the multi-information

display, the system may be malfunc-

tioning. Have the vehicle inspected

by your Toyota dealer immediately.

●If the door is unlocked with the

mechanical key, the EV system

cannot be started using the smart

key system. Refer to P.540 to start

the EV system. However, if the

electronic key is carried inside the

vehicle and the doors are locked

(P.170), the EV system can be

started.

■If the “READY” indicator does

not come on

In the event that the “READY” indi-

cator does not come on even after

performing the proper procedures

for starting the vehicle, contact your

Toyota dealer immediately.

■When the ambient temperature

is low, such as during winter

driving conditions

■If the EV system is malfunction-

ing

●When starting the EV system, the

flashing time of the “READY” indi-

cator may be long. Leave the

P.80

vehicle as it is until the “READY”

indicator is steady on, as steady

means the vehicle is able to move.

■Electronic key battery

P.497

■Operation of the power switch

●When the traction battery is

extremely cold (below approxi-

mately -22°F [-30°C]) under the

influence of the outside tempera-

ture, it may not be possible to start

the EV system. In this case, try to

start the EV system again after the

temperature of the traction battery

increases due to the outside tem-

perature increase, etc.

●If the switch is not pressed shortly

and firmly, the power switch mode

may not change or the EV system

may not start.

●If attempting to restart the EV sys-

tem immediately after turning the

power switch to OFF, the EV sys-

tem may not start in some cases.

After turning the power switch to

OFF, please wait a few seconds

before restarting the EV system.

■Sounds and vibrations specific

to an battery electric vehicle

P.74

■Customization

■If the 12-volt battery is dis-

If the smart key system has been

deactivated in a customized setting,

refer to P.540.

charged

The EV system cannot be started

using the smart key system. Refer

to P.541 to restart the EV system.

WARNING

■Electronic key battery depletion

P.162

■When starting the EV system

Always start the EV system while

sitting in the driver’s seat. Do not

depress the accelerator pedal

while starting the EV system

under any circumstances.

Doing so may cause an accident

resulting in death or serious injury.

■Conditions affecting operation

P.188

■Note for the entry function

P.189

Owners Manual_USA_M42C01_en

233

5-2. Driving procedures

operating for an extended period.

NOTICE

●The EV system will automatically

shut off after approximately 1 hour

if it has been left operating while

the shift position is in P.

■When starting the EV system

If the EV system becomes difficult

to start, have your vehicle

checked by your Toyota dealer

immediately.

●The timer for the automatic EV

system shut off feature will reset if

the brake pedal is depressed or if

the shift position is in a position

other than P.

■Symptoms indicating a mal-

function with the power

switch

●After the vehicle is parked, if the

door is locked with the door lock

switch (P.170) from the inside or

the mechanical key (P.539) from

the outside, the automatic EV sys-

tem shut off feature will be dis-

abled. The timer for the automatic

EV system shut off feature will be

re-enabled if the driver’s door is

opened.

If the power switch seems to be

operating somewhat differently

than usual, such as the switch

sticking slightly, there may be a

malfunction. Contact your Toyota

dealer immediately.

Stopping the EV system

■When the shift control system

malfunctions

1 Stop the vehicle completely.

2 Set the parking brake.

(P.243)

When attempting to turn the power

switch off while there is a malfunc-

tion in the shift control system, the

power switch mode may change to

ACC. In this case, ACC may be

turned off by applying the parking

brake and pressing the power

switch again.

5

3 Press the P position switch.

(P.237)

Check that the shift position indica-

tor shows P and the parking brake

indicator is illuminated.

If there is a malfunction in the sys-

tem, have the vehicle inspected by

your Toyota dealer immediately.

4 Press the power switch.

The EV system will stop, and the

meter display will be extinguished

(the shift position indicator will be

extinguished a few seconds after

the meter display).

■Automatic P position selection

function

P.238

5 Release the brake pedal and

check that “ACCESSORY” or

“POWER ON” is not shown

on the meter.

■Automatic EV system shut off

feature

●The vehicle is equipped with a

feature that automatically shuts off

the EV system when the shift posi-

tion is in P with the EV system

Owners Manual_USA_M42C01_en

234

5-2. Driving procedures

WARNING

■When parking

Exhaust gases include harmful

carbon monoxide (CO), which is

colorless and odorless. Observe

the following precautions.

■Stopping the EV system in an

emergency

●If you want to stop the EV sys-

tem in an emergency while driv-

ing the vehicle, press and hold

the power switch for more than

2 seconds, or press it briefly 3

times or more in succession.

(P.505)

Failure to do so may cause

exhaust gases to enter the vehicle

and may lead to an accident

caused by light-headedness, or

may lead to death or a serious

health hazard.

However, do not touch the

power switch while driving

except in an emergency. Turn-

ing the EV system off while driv-

ing will not cause a loss of

steering or braking control.

However, power assist for the

steering wheel may be lost mak-

ing it difficult to steer smoothly

before stopping the vehicle

depending on the remaining

charge in the 12-volt battery or

usage conditions. In this situa-

tion, you should pull over and

stop the vehicle as soon as it is

safe to do so.

●If the vehicle is in a poorly venti-

lated area or a closed area,

such as a garage, stop the EV

system.

●Do not leave the vehicle with

the EV system operating for a

long time. If such a situation

cannot be avoided, park the

vehicle in an open space and

ensure that exhaust fumes do

not enter the vehicle interior.

●Do not leave the EV system

operating in an area with snow

build-up, or where it is snowing.

If snowbanks build up around

the vehicle while the EV system

is operating, exhaust gases

may collect and enter the vehi-

cle.

●If the power switch is operated

while the vehicle is running, a

warning message will be shown

on the multi-information display

and a buzzer sounds.

●When restarting the EV system

after an emergency shutdown,

press the power switch shortly

and firmly.

Changing power switch

modes

Modes can be changed by

pressing the power switch with

the brake pedal released. (The

mode changes each time the

switch is pressed.)

Owners Manual_USA_M42C01_en

235

5-2. Driving procedures

when the EV system is not operat-

ing.

NOTICE

■To prevent 12-volt battery dis-

charge

●Do not leave the power switch

in ACC or ON for long periods of

time without the EV system on.

●If “ACCESSORY” or “POWER

ON” is displayed on the multi-

information display, the power

switch is not in OFF. Exit the

vehicle after turning the power

switch to OFF.

“ACCESSORY”

“POWER ON”

1 OFF

The emergency flashers can be

used.

2 ACC^*

5

Some electrical components such

as the audio system can be used.

“ACCESSORY” will be displayed

on the multi-information display.

3 ON

All electrical components can be

used.

“POWER ON” will be displayed on

the multi-information display.

*

: Setting can be customized.

(→P.571)

■Auto power off function

If the vehicle is left in ACC for more

than 20 minutes or ON (the EV sys-

tem is not operating) for more than

an hour with the shift position in P,

the power switch will automatically

turn off. However, this function can-

not entirely prevent the 12-volt bat-

tery discharge. Do not leave the

vehicle with the power switch in

ACC or ON for long periods of time

Owners Manual_USA_M42C01_en

Driving -> Power (ignition) switch for Your Toyota bZ4X SUV Second Generation (2025-2026)

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