Get Maintenance and care -> Do-it-yourself maintenance Guide for Toyota bZ4X SUV First Generation (2022-2024)

460

7-3. Do-it-yourself maintenance

7-3.Do-it-yourself maintenance

Items

Parts and tools

Do-it-yourself service

precautions

• In order to ensure

maximum perfor-

mance of the trac-

tion battery

cooling system

and limit risks of

battery short-cir-

cuit and other

If you perform maintenance

by yourself, be sure to fol-

low the correct procedure

as given in these sections.

damage to your

vehicle, Toyota

recommends

Maintenance

Items

Parts and tools

Powercontrol

unit coolant

level

using “Toyota

• Warm water

• Baking soda

• Grease

• Conventional

wrench (for termi-

nal clamp bolts)

Genuine Traction

Battery Coolant”

or similar high-

quality ethylene

glycol-based, low

electric conductiv-

ity coolant, non-

amine and non-

borate coolant

with azole addi-

tives.

12-volt bat-

tery condi-

tion (P.468)

(P.467)

• FMVSS No.116

DOT 3 or SAE

J1703 brake fluid

FMVSS No.116

DOT 4 or SAE

J1704 brake fluid

• Rag or paper

towel

Brake fluid

level

(P.468)

• Funnel (used only

for adding coolant)

• Funnel (used only

for adding brake

fluid)

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461

7-3. Do-it-yourself maintenance

WARNING

Items

Parts and tools

• “Toyota Super

Long Life Cool-

ant” or a similar

high quality eth-

yleneglycol-based

non-silicate, non-

amine, non-nitrite

and non-borate

coolant with long-

life hybrid organic

acid technology

“Toyota Super

Long Life Cool-

ant” is pre-mixed

with 50% coolant

and 50% deion-

ized water.

The motor compartment contains

many mechanisms and fluids that

may move suddenly, become hot,

or become electrically energized.

To avoid death or serious injury,

observe the following precautions.

■When working on the motor

compartment

●Make sure that “POWER ON”

on the multi-information display

and the “READY” indicator are

both off.

Heater cool-

ant level

(P.465)

●Keep hands, clothing and tools

away from the moving fan.

●Be careful not to touch the

motor, power control unit, radia-

tor, etc., right after driving as

they may be hot. Coolant and

other fluids may also be hot.

• Funnel (used only

for adding coolant)

●Do not leave anything that may

burn easily, such as paper and

rags, in the motor compartment.

• Fuse with same

amperage rating

as original

Fuses

(P.501)

●Do not smoke, cause sparks or

expose an open flame to the 12-

volt battery. 12-volt battery

fumes are flammable.

Headlightaim  Phillips-head

(P.503)

screwdriver

7

Radiator and

condenser

(P.466)

●Be extremely cautious when

working on the 12-volt battery. It

contains poisonous and corro-

sive sulfuric acid.



• Tire pressure

gauge

• Compressed air

source

Tire inflation

pressure

(P.493)

●Never touch, disassemble,

remove or replace the high volt-

age parts, cables and their con-

nectors. It can cause severe

burns or electric shock that may

result in death or serious injury.

• Water or washer

fluid containing

antifreeze (for win-

ter use)

• Funnel (used only

for adding water or

washer fluid)

Washer fluid

(P.471)

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462

7-3. Do-it-yourself maintenance

Hood

WARNING

■When working near the elec-

tric cooling fan or radiator

grille

Opening the hood

Be sure the power switch is OFF.

1 Pull the hood lock release

With the power switch in ON, the

electric cooling fan may automati-

cally start to run if the air condi-

tioning is on and/or the coolant

temperature is high. (P.466)

lever.

The hood will pop up slightly.

■Safety glasses

Wear safety glasses to prevent

flying or falling material, fluid

spray, etc., from getting in your

eyes.

2 Push the auxiliary catch lever

to the left and lift the hood.

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7-3. Do-it-yourself maintenance

3 Hold the hood open by insert-

NOTICE

ing the supporting rod into

the slot.

■When closing the hood

Be sure to return the support rod

to its clip before closing the hood.

Closing the hood without return-

ing the support rod properly could

cause the hood to bend.

WARNING

■Pre-driving check

Check that the hood is fully closed

and locked.

If the hood is not locked properly,

it may open while the vehicle is in

motion and cause an accident,

which may result in death or seri-

ous injury.

7

■After installing the support

rod into the slot

Make sure the rod is properly

inserted into the slot to prevent

the hood from shutting on your

head or body.

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464

7-3. Do-it-yourself maintenance

■ Rear

Positioning a floor

jack

When using a floor jack, fol-

low the instructions in the

manual provided with the

jack and perform the opera-

tion safely.

When raising your vehicle

with a floor jack, position

the jack correctly.

Improper placement may

damage your vehicle or

cause injury.

Location of the jack point

■ Front

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7-3. Do-it-yourself maintenance

Motor compartment

Components

Heater coolant reservoir (P.465)

Washer fluid tank (P.471)

Power control unit coolant reservoir (P.467)

12-volt battery (P.468)

Brake fluid reservoir (P.468)

Fuse box (P.501)

7

Radiator (P.466)

Condenser (P.466)

Electric cooling fan

“MIN” lines on the reservoir

when the EV system is cold.

Checking the heater cool-

ant

The coolant level is satisfactory

if it is between the “MAX” and

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466

7-3. Do-it-yourself maintenance

WARNING

■When the heater system is

hot

Do not remove the heater coolant

reservoir caps.

The heater system may be under

pressure and may spray hot cool-

ant if the cap is removed, causing

serious injuries, such as burns.

Reservoir cap

NOTICE

“MAX” line

“MIN” line

■When adding coolant

Coolant is neither plain water nor

straight antifreeze. The correct

mixture of water and antifreeze

must be used to provide proper

lubrication, corrosion protection

and cooling. Be sure to read the

antifreeze or coolant label.

If the level is on or below the “MIN”

line, add coolant up to the “MAX”

line. (P.547)

■Coolant selection

■If you spill coolant

Only use “Toyota Super Long Life

Coolant” or a similar high quality

ethylene glycol based non-silicate,

non-amine, non-nitrite, and nonbo-

rate coolant with long-life hybrid

organic acid technology.

Be sure to wash it off with water to

prevent it from damaging parts or

paint.

Checking the radiator and

condenser

“Toyota Super Long Life Coolant” is

a mixture of 50% coolant and 50%

deionized water. (Minimum tem-

perature: -31°F [-35°C])

Check the radiator and con-

denser and clear away any for-

eign objects.

For more details about coolant, con-

tact your Toyota dealer.

■If the coolant level drops within

a short time of replenishing

If either of the above parts is

extremely dirty or you are not

sure of their condition, have

your vehicle inspected Toyota

dealer.

Visually check the radiator, hoses,

power control unit coolant reservoir

caps, drain cock and water pump.

If you cannot find a leak, have your

Toyota dealer, test the cap and

check for leaks in the cooling sys-

tem.

WARNING

■When the EV system is hot

Do not touch the radiator or con-

denser as they may be hot and

cause serious injuries, such as

burns.

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467

7-3. Do-it-yourself maintenance

your vehicle, Toyota recommends

using “Toyota Genuine Traction Bat-

tery Coolant” or similar high-quality

ethylene glycol-based, low electric

conductivity coolant, non-amine and

non-borate coolant with azole addi-

tives.

WARNING

■When the electric cooling fan

are operating

Do not touch the motor compart-

ment.

With the power switch in ON, the

electric cooling fan may automati-

cally start to run if the air condi-

tioning is on and/or the coolant

temperature is high. Be sure the

power switch is OFF when work-

ing near the electric cooling fan or

radiator grille.

Toyota cannot guarantee that the

use of a product other than “Toyota

Genuine Traction Battery Coolant”

will prevent risks of battery short-cir-

cuit or other damage.

Never use water as it will cause

damage.

Do not reuse coolant that has been

removed from the radiator.

Checking the power con-

trol unit coolant

For more details about coolant, con-

tact your Toyota dealer.

■If the coolant level drops within

The coolant level is satisfactory

if it is between the “MAX” and

“MIN” lines on the reservoir

when the EV system is cold.

a short time of replenishing

Visually check the hoses, heater

coolant reservoir caps, drain cock

and water pump.

If you cannot find a leak, have your

Toyota dealer, test the cap and

check for leaks in the cooling sys-

tem.

WARNING

7

■When the EV system is hot

Do not remove the power control

unit coolant reservoir caps.

The cooling system may be under

pressure and may spray hot cool-

ant if the cap is removed, causing

serious injuries, such as burns.

Reservoir cap

“MAX” line

“MIN” line

If the level is on or below the “MIN”

line, add coolant up to the “MAX”

line.

■Coolant selection

In order to ensure maximum perfor-

mance of the traction battery cooling

system and limit risks of battery

short-circuit and other damage to

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468

7-3. Do-it-yourself maintenance

J1703 brake fluid

NOTICE

FMVSS No.116 DOT 4 or SAE

J1704 brake fluid

■When adding coolant

Coolant is neither plain water nor

straight antifreeze. The correct

mixture of water and antifreeze

must be used to provide proper

lubrication, corrosion protection

and cooling. Be sure to read the

antifreeze or coolant label.

 Item

Clean funnel

■Brake fluid can absorb moisture

from the air

■If you spill coolant

Excess moisture in the brake fluid

can cause a dangerous loss of brak-

ing efficiency. Use only newly

opened brake fluid.

Be sure to wash it off with water to

prevent it from damaging parts or

paint.

WARNING

Checking and adding the

brake fluid

■When filling the reservoir

Take care as brake fluid can harm

your hands and eyes and damage

painted surfaces.

■ Checking fluid level

The brake fluid level should be

between the “MAX” and “MIN”

lines on the tank.

If fluid gets on your hands or in

your eyes, flush the affected area

with clean water immediately. If

you still experience discomfort,

see a doctor.

NOTICE

■If the fluid level is low or high

It is normal for the brake fluid level

to go down slightly as the brake

pads wear out or when the fluid

level in the accumulator is high.

If the reservoir needs frequent

refilling, there may be a serious

problem.

Reservoir cap

“MAX” line

Checking the 12-volt bat-

tery

“MIN” line

■ Adding fluid

Check the 12-volt battery as fol-

lows.

Make sure to check the fluid

type and prepare the necessary

item.

■ 12-volt battery exterior

 Fluid type

Make sure that the 12-volt bat-

tery terminals are not corroded

FMVSS No.116 DOT 3 or SAE

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469

7-3. Do-it-yourself maintenance

ing directly at the cell.

and that there are no loose con-

nections, cracks, or loose

clamps.

3 Put the vent plug back on

and close it securely.

Terminals

■Before recharging

Hold-down clamp

When recharging, the 12-volt bat-

tery produces hydrogen gas which

is flammable and explosive. There-

fore, observe the following precau-

tions before recharging:

■ Checking 12-volt battery

fluid

Check that the level is between

the “UPPER LEVEL” and

“LOWER LEVEL” lines.

●If recharging with the 12-volt bat-

tery installed on the vehicle, be

sure to disconnect the ground

cable.

●Make sure the power switch on

the charger is off when connecting

and disconnecting the charger

cables to the 12-volt battery.

7

■After recharging/reconnecting

the 12-volt battery

●The EV system may not start. Fol-

low the procedure below to initial-

ize the system.

1 Shift the shift position to P.

2 Open and close any of the doors.

3 Restart the EV system.

●Unlocking the doors using the

Smart key system may not be

possible immediately after recon-

necting the 12-volt battery. If this

happens, use the wireless remote

control or the mechanical key to

lock/unlock the doors.

“UPPER LEVEL” line

“LOWER LEVEL” line

If the fluid level is at or below the

“LOWER LEVEL” line, add distilled

water.

■ Adding distilled water

1 Remove the vent plug.

2 Add distilled water.

If the “UPPER LEVEL” cannot be

seen, check the fluid level by look-

●Start the EV system with the

power switch in ACC. The EV sys-

tem may not start with the power

switch turned off. However, the EV

system will operate normally from

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470

7-3. Do-it-yourself maintenance

the second attempt.

■Where to safely charge the

●The power switch mode is

recorded by the vehicle. If the 12-

volt battery is disconnected and

reconnected, the vehicle will

return the power switch mode to

the status it was in before the 12-

volt battery was disconnected.

Make sure to turn off the power

switch before disconnecting the

12-volt battery. Take extra care

when connecting the 12-volt bat-

tery if the power switch mode prior

to the 12-volt battery being dis-

connected is unknown.

12-volt battery

Always charge the 12-volt battery

in an open area. Do not charge

the 12-volt battery in a garage or

closed room where there is insuf-

ficient ventilation.

■Emergency measures regard-

ing electrolyte

●If electrolyte gets in your eyes

Flush your eyes with clean

water for at least 15 minutes

and get immediate medical

attention. If possible, continue

to apply water with a sponge or

cloth while traveling to the near-

est medical facility.

If the EV system will not start even

after multiple attempts at all the

methods above, contact your Toyota

dealer.

●If electrolyte gets on your skin

Wash the affected area thor-

oughly. If you feel pain or burn-

ing, get medical attention

immediately.

WARNING

■Chemicals in the 12-volt bat-

tery

●If electrolyte gets on your

clothes

It can soak through clothing on

to your skin. Immediately take

off the clothing and follow the

procedure above if necessary.

Batteries contain poisonous and

corrosive sulfuric acid and may

produce hydrogen gas which is

flammable and explosive. To

reduce the risk of death or serious

injury, take the following precau-

tions while working on or near the

12-volt battery:

●If you accidentally swallow elec-

trolyte

Drink a large quantity of water

or milk. Get emergency medical

attention immediately.

●Do not cause sparks by touch-

ing the 12-volt battery terminals

with tools.

■When there is insufficient 12-

volt battery fluid

●Do not smoke or light a match

near the 12-volt battery.

Do not use if there is insufficient

fluid in the 12-volt battery. There

is a possible danger that the 12-

volt battery may explode.

●Avoid contact with eyes, skin

and clothes.

●Never inhale or swallow electro-

lyte.

●Wear protective safety glasses

when working near the 12-volt

battery.

●Keep children away from the

12-volt battery.

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471

7-3. Do-it-yourself maintenance

NOTICE

■When recharging the 12-volt

battery

■Do not use any fluid other

than washer fluid

Never recharge the 12-volt bat-

tery while the EV system is oper-

ating. Also, be sure all

Do not use soapy water or anti-

freeze instead of washer fluid.

Doing so may cause streaking on

the vehicle’s painted surfaces, as

well as damaging the pump lead-

ing to problems of the washer

fluid not spraying.

accessories are turned off.

■When adding distilled water

Avoid overfilling. Water spilled

during 12-volt battery recharging

may cause corrosion.

■Diluting washer fluid

Dilute washer fluid with water as

necessary.

Refer to the freezing tempera-

tures listed on the label of the

washer fluid bottle.

Adding the washer fluid

If the warning message appears

on the multi-information display,

the washer tank may be empty.

Add washer fluid.

7

WARNING

■When adding washer fluid

Do not add washer fluid when the

EV system is hot or operating as

washer fluid contains alcohol and

may catch fire if spilled on the

motor, etc.

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472

Tires

7-3. Do-it-yourself maintenance

Replace the tires if the treadwear

indicators are showing on a tire.

Replace or rotate tires in

accordance with mainte-

nance schedules and tread-

wear.

■When to replace your vehicle’s

tires

Tires should be replaced if:

●The treadwear indicators are

showing on a tire.

●You have tire damage such as

cuts, splits, cracks deep enough

to expose the fabric, and bulges

indicating internal damage.

Checking tires

Check if the treadwear indica-

tors are showing on the tires.

Also check the tires for uneven

wear, such as excessive wear

on one side of the tread.

●A tire goes flat repeatedly or can-

not be properly repaired due to the

size or location of a cut or other

damage.

If you are not sure, consult with your

Toyota dealer.

■Tire life

Any tire over 6 years old must be

checked by a qualified technician

even if it has seldom or never been

used or damage is not obvious.

■Maximum load of tire

Check that the number given by

dividing the maximum load by 1.10

of the replacement tire is greater

than 1/2 of the Gross Axle Weight

Ratings (GAWR) of either the front

axle or the rear axle, whichever is

greater.

For the GAWR, see the Certification

Regulation Label. For the maximum

load of the tire, see the load limit at

maximum cold tire inflation pressure

mentioned on the sidewall of the

tire. (P.558)

New tread

Worn tread

Treadwear indicator

The location of treadwear indicators

is shown by a “TWI” or “ ” mark,

etc., molded into the sidewall of

each tire.

■Tire types

●Summer tires

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473

7-3. Do-it-yourself maintenance

Summer tires are high-speed perfor-

WARNING

mance tires best suited to highway

driving under dry conditions. Since

summer tires do not have the same

traction performance as snow tires,

summer tires are inadequate for

driving on snow-covered or icy

roads. For driving on snow-covered

roads or icy roads, the use of snow

tires is recommended. When install-

ing snow tires, be sure to replace all

four tires.

■When inspecting or replacing

tires

Observe the following precautions

to prevent accidents.

Failure to do so may cause dam-

age to parts of the drive train as

well as dangerous handling char-

acteristics, which may lead to an

accident resulting in death or seri-

ous injury.

●Do not mix tires of different

makes, models or tread pat-

terns.

Also, do not mix tires of remark-

ably different treadwear.

●All season tires

All season tires are designed to pro-

vide better traction in snow and to

be adequate for driving in most win-

ter conditions as well as for use

year-round. All season tires, how-

ever, do not have adequate traction

performance compared with snow

tires in heavy or loose snow. Also,

all season tires fall short in accelera-

tion and handling performance com-

pared with summer tires in highway

driving.

●Do not use tire sizes other than

those recommended by Toyota.

●Do not mix differently con-

structed tires (radial, bias-belted

or bias-ply tires).

●Do not mix summer, all season

and snow tires.

●Do not use tires that have been

used on another vehicle.

Do not use tires if you do not

know how they were used previ-

ously.

●Snow tires

7

For driving on snow-covered roads

or icy roads, we recommend using

snow tires. If you need snow tires,

select tires of the same size, con-

struction and load capacity as the

originally installed tires. Since your

vehicle has radial tires as original

equipment, make sure your snow

tires also have radial construction.

Do not install studded tires without

first checking local regulations for

possible restrictions. Snow tires

should be installed on all wheels.

(P.393)

NOTICE

■Driving on rough roads

Take particular care when driving

on roads with loose surfaces or

potholes.

These conditions may cause

losses in tire inflation pressure,

reducing the cushioning ability of

the tires. In addition, driving on

rough roads may cause damage

to the tires themselves, as well as

the vehicle’s wheels and body.

■If the tread on snow tires wears

down below 0.16 in. (4 mm)

The effectiveness of the tires as

snow tires is lost.

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474

7-3. Do-it-yourself maintenance

Tire pressure warning

NOTICE

system

■If tire inflation pressure of

each tire becomes low while

driving

Your vehicle is equipped with a

tire pressure warning system

that uses tire pressure warning

valves and transmitters to detect

low tire inflation pressure before

serious problems arise.

Do not continue driving, or your

tires and/or wheels may be

ruined.

Tire rotation

The tire pressure warning sys-

tem of this vehicle adopts a 2-

type warning system.

Rotate the tires in the order

shown.

To equalize tire wear and extend

tire life, Toyota recommends that

tire rotation is carried out at the

same interval as tire inspection.

 When “Adjust Pressure” is

displayed (Normal Warning)

A warning with the tire pressure

warning light and warning buzzer

when there is an unknown level of

low tire pressure with the appear-

ance of the tire due to natural air

leakage as well as the pressure

lowering due to changes in the

pressure according to the outside

temperature.

Do not fail to initialize the tire pres-

sure warning system after tire rota-

tion.

 When “Immediately Check

Tire when Safe” is displayed

(Emergency Warning)

A warning with the tire pressure

warning light and warning buzzer

when there is a known level of low

tire pressure with the appearance

of the tire due to pressure suddenly

lowering.

Front

■When rotating the tires

Make sure that the power switch is

OFF. If the tires are rotated while the

power switch is in ON, the tire posi-

tion information will not be updated.

If this accidentally occurs, either turn

the power switch to OFF and then to

ON, or initialize the system after

checking that the tire pressure is

properly adjusted.

However, the system may not be

able to detect sudden tire ruptures

(bursting, etc.).

 The tire pressure detected by

the tire pressure warning sys-

tem can be displayed on the

multi-information display.

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475

7-3. Do-it-yourself maintenance

■Routine tire inflation pressure

checks

The tire pressure warning system

does not replace routine tire inflation

pressure checks. Make sure to

check tire inflation pressure as part

of your routine of daily vehicle

checks.

■Tire inflation pressure

●It may take a few minutes to dis-

play the tire inflation pressure

after the power switch is turned to

ON. It may also take a few min-

utes to display the tire inflation

pressure after inflation pressure

has been adjusted.

■ How to change the unit

1 Park the vehicle in a safe

place and EV system off.

2 Start the EV system.

Changing the unit cannot be per-

formed while the vehicle is moving.

●Tire inflation pressure changes

with temperature.

The displayed values may also be

different from the values mea-

sured using a tire pressure gauge.

3 Press

or

of the meter

control switch to select

.

■Situations in which the tire

pressure warning system may

not operate properly

4 Press

or

of the meter

control switches and select

“Vehicle Settings” and then

press and hold “OK”.

●In the following cases, the tire

pressure warning system may not

operate properly.

• If non-genuine Toyota wheels are

used.

• A tire has been replaced with a

tire that is not an OE (Original

Equipment) tire.

• A tire has been replaced with a

tire that is not of the specified size.

• Tire chains etc. are equipped.

• If a window tint that affects the

radio wave signals is installed.

• If there is a lot of snow or ice on

the vehicle, particularly around the

wheels or wheel housings.

• If the tire inflation pressure is

extremely higher than the speci-

fied level.

• If wheels without tire pressure

warning valves and transmitters

are used.

• If the ID code on the tire pressure

warning valves and transmitters is

not registered in the tire pressure

warning computer.

5 Press

or

of the meter

7

control switches and select

“TPWS setting” and then

press “OK”.

6 Press

or

of the meter

control switches and select

“Setting Unit” and then press

“OK”.

7 Press

or

of the meter

control switches and select

the desired unit and then

press “OK”.

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476

7-3. Do-it-yourself maintenance

●Performance may be affected in

the following situations.

• Near a TV tower, electric power

plant, gas station, radio station,

large display, airport or other facil-

ity that generates strong radio

waves or electrical noise

driving for about 10 minutes, the tire

pressure warning light blinks for 1

minute and stays on to indicate a

system malfunction.

NOTICE

• When carrying a portable radio,

cellular phone, cordless phone or

other wireless communication

device

■Repairing or replacing tires,

wheels, tire pressure warn-

ing valves, transmitters and

tire valve caps

If tire position information is not cor-

rectly displayed due to the radio

wave conditions, the display may be

corrected by driving and changing

the radio wave conditions.

●When removing or fitting the

wheels, tires or the tire pressure

warning valves and transmit-

ters, contact your Toyota dealer

as the tire pressure warning

valves and transmitters may be

damaged if not handled cor-

rectly.

●When the vehicle is parked, the

time taken for the warning to start

or go off could be extended.

●Make sure to install the tire

valve caps. If the tire valve caps

are not installed, water could

enter the tire pressure warning

valves and the tire pressure

warning valves could be bound.

●When tire inflation pressure

declines rapidly for example when

a tire has burst, the warning may

not function.

Installing tire pressure

warning valves and trans-

mitters

●When replacing tire valve caps,

do not use tire valve caps other

than those specified. The cap

may become stuck.

■To avoid damage to the tire

pressure warning valves and

transmitters

When replacing tires or wheels,

tire pressure warning valves and

transmitters must also be

installed.

When a tire is repaired with liquid

sealants, the tire pressure warn-

ing valve and transmitter may not

operate properly. If a liquid seal-

ant is used, contact your Toyota

dealer as soon as possible. After

use of liquid sealant, make sure to

replace the tire pressure warning

valve and transmitter when repair-

ing or replacing the tire.

When new tire pressure warning

valves and transmitters are

installed, new ID codes must be

registered in the tire pressure warn-

ing computer and the tire pressure

warning system must be initialized.

(P.481)

■When replacing the tires and

wheels

If the ID code of the tire pressure

warning valve and transmitter is not

registered, the tire pressure warning

system will not work properly. After

Owner's Manual_USA_M42G23_en

477

7-3. Do-it-yourself maintenance

“TPWS Setting”, and then

press “OK”.

Registration of the posi-

tion of each wheel after

performing a tire rotation

6 Press

or

of the meter

■ When rotating the tires

control switches and select

“Tire Rotation”, and then

press “OK”.

It is necessary to register the

position of each wheel after per-

forming a tire rotation.

7 Press

or

of the meter

Wheel position registration can

be performed by oneself. Wheel

position registration is per-

control switches and select

“OK”, and then press “OK”.

A message is displayed on the

multi-information display. Also, “--”

is displayed for inflation pressure of

each tire on the multi-information

display while the tire pressure

warning system determines the

position.

formed by driving forward with

moderate left and right turns.

However, depending on the driv-

ing conditions and driving envi-

ronment, registration may take

some time to complete.

■ Registration of the tire posi-

tion

1 Park the vehicle in a safe

place and stop the EV sys-

tem for 15 minutes or more.

2 Start the EV system

(P.467)

7

Registration cannot be performed

while the vehicle is moving.

“Setting Pressure Wait a

Moment”

3 Press

or

of the meter

8 Drive at approximately 25

mph (40 km/h) or more for

approximately 10 to 30 min-

utes.

control switches and select

.

4 Press

or

of the meter

When wheel position registration is

complete, the inflation pressure of

each tire will be displayed on the

multi-information display.

control switches and select

“Vehicle Settings”, and then

press and hold the “OK”.

Even if the vehicle is not driven at

approximately 25 mph (40 km/h) or

more, registration can be com-

pleted by driving for a long time.

However, if initialization does not

complete after driving for 1 hour or

5 Press

or

of the meter

control switches and select

Owner's Manual_USA_M42G23_en

478

7-3. Do-it-yourself maintenance

more, park the vehicle in a safe

place for approximately 15 minutes

and then drive the vehicle again.

Setting the tire pressure

■ When you need to setting

the tire pressure

■When performing wheel posi-

tion registration

In the following situations, it will

be necessary to perform the tire

inflation pressure setting proce-

dure of the tire pressure warning

system.

●Normally, wheel position registra-

tion can be completed within

approximately 30 minutes.

●Wheel position registration is per-

formed while driving at a vehicle

speed of approximately 25 mph

(40 km/h) or more.

 When the specified tire infla-

tion pressure has changed,

such as due to carried load,

etc.

■The initialization operation

●If the power switch is turned off

while registering the wheel posi-

tion, the next time the power

switch is turned to ON, the wheel

position registration will resume

and it will not be necessary to

restart the procedure.

 When the tire inflation pres-

sure is changed such as

when the tire size is changed.

If the tire inflation pressure has

been adjusted to the specified

level, perform the tire inflation

setting procedure by selecting

specified inflation pressure on

the multi-information display.

●While the position of each tire is

being determined and the inflation

pressures are not being displayed

on the multi-information display, if

the inflation pressure of a tire

drops, the tire pressure warning

light will come on.

■If the tire pressure warning sys-

tem is not registered properly

When the tire inflation pressure

is to be other than specified,

such as when tires other than

the specified size are used, etc.,

set the tire inflation pressure

using the current pressure.

Make sure to adjust the tire

inflation pressure of each tire to

the appropriate level before per-

forming tire pressure setting.

The tire pressure warning sys-

tem operates based on this tire

inflation pressure.

●In the following situations, wheel

position registration may take lon-

ger than usual to be completed or

may not be possible.

• Vehicle is not driven at approxi-

mately 25 mph (40 km/h) or more

• Vehicle is driven on unpaved

roads

If initialization does not complete

after driving for 1 hour or more, park

the vehicle in a safe place for

approximately 15 minutes and then

drive the vehicle again.

●If the vehicle is reversed during

wheel position registration, all

data collected until then will be

cleared. Perform driving again.

Owner's Manual_USA_M42G23_en

479

7-3. Do-it-yourself maintenance

After setting the tire inflation pres-

sure, a message indicating that set-

ting has been completed will be

displayed on the multi-information

display.

■ Setting by selecting a spec-

ified tire inflation pressure

1 Start the EV system

(P.231)

The tire inflation pressure cannot

be set while the vehicle is moving.

2 Press

or

of the meter

control switches and select

.

3 Press

or

of the meter

control switches and select

“Vehicle Settings”, and then

press and hold the “OK”.

“Setting Pressure Wait a

Moment”

■ Setting using the current

4 Press

or

of the meter

tire inflation pressure

1 Adjust the tire inflation pres-

sure to the specified cold tire

inflation pressure level.

control switches and select

“TPWS Setting”, and then

press “OK”.

Make sure to adjust the tire pres-

sure to the specified cold tire infla-

tion pressure level. The tire

5 Press

or

of the meter

control switches and select

“Tire Pressure Setting”, and

then press “OK”.

pressure warning system will oper-

ate based on this pressure level.

7

2 Start the EV system

(P.231)

6 Press

or

of the meter

The tire inflation pressure cannot

be set while the vehicle is moving.

control switches and select

“Setting by Specified Pres-

sure”, and then press “OK”.

3 Press

or

of the meter

control switches and select

Select the desired front and rear

tire pressures.

.

7 Press

or

of the meter

4 Press

or

of the meter

control switches and select

“OK”, and then press “OK”.

control switches and select

“Vehicle Settings”, and then

press and hold the “OK”.

The tire pressure warning light will

slowly blink 3 times and a message

indicating that tire inflation pressure

is being set will be displayed on the

multi-information display.

Owner's Manual_USA_M42G23_en

480

7-3. Do-it-yourself maintenance

5 Press

or

of the meter

■Warning performance of the tire

pressure warning system (Set-

ting using the current tire infla-

tion pressure)

control switches and select

“TPWS Setting”, and then

press “OK”.

●When performing the tire pressure

setting using the current tire infla-

tion pressure, the warning timing

of the tire pressure warning sys-

tem will vary according to the con-

ditions under which tire pressure

setting was performed. Therefore,

a warning may be output even if

the tire inflation pressure drops

slightly or if the tire inflation pres-

sure increases above that when

the tire inflation pressure was set.

6 Press

or

of the meter

control switches and select

“Tire Pressure Setting”, and

then press “OK”.

7 Press

or

of the meter

control switches and select

“Setting by Current Pressure”

and then press “OK”.

●Make sure to perform the tire

pressure setting procedure after

adjusting the tire inflation pres-

sure. Also, make sure the tires are

cold before performing the tire

pressure setting procedure or

adjusting the tire inflation pres-

sure.

8 Press

or

of the meter

control switches and select

“OK”, and then press “OK”.

The tire pressure warning light will

slowly blink 3 times and a message

indicating that tire inflation pressure

is being set will be displayed on the

multi-information display.

■Tire inflation pressure setting

procedure (Setting using the

current tire inflation pressure)

●If the power switch is turned off

while setting the tire inflation pres-

sure, the next time the power

switch is turned to ON, the setting

procedure will resume and it will

not be necessary to restart the

procedure.

After setting the tire inflation pres-

sure, a message indicating that set-

ting has been completed will be

displayed on the multi-information

display.

●If the tire inflation pressure setting

procedure is started unnecessar-

ily, adjust the tire inflation pres-

sure to the specified level with the

tires cold and then perform setting

by selecting a specified tire infla-

tion pressure, or perform the tire

inflation pressure setting proce-

dure with the current tire inflation

pressure.

■If the tire inflation pressure can-

not be set properly

“Setting Pressure Wait a

Moment”

●Normally, the tire inflation pres-

sure setting procedure can be

completed in 2 or 3 minutes.

●If the tire pressure warning light

Owner's Manual_USA_M42G23_en

481

7-3. Do-it-yourself maintenance

does not blink 3 times when start-

cannot be performed while the

vehicle is moving.

ing the tire inflation pressure set-

ting procedure, the procedure

may not have started. Perform the

procedure again from the begin-

ning.

3 Press

or

of the meter

control switches and select

●If tire inflation pressure setting

procedure cannot be completed

after performing the above proce-

dure, contact your Toyota dealer.

.

4 Press

or

of the meter

control switches and select

“Vehicle Settings”, and then

press and hold the “OK”.

WARNING

■When setting using the cur-

rent tire inflation pressure

5 Press

or

of the meter

Make sure to adjust the tire infla-

tion pressure of each tire to the

appropriate level before perform-

ing tire pressure setting. Other-

wise, the tire pressure warning

light may not illuminate even if the

tire inflation pressure drops or

may illuminate even though the

tire inflation pressure is normal.

control switches and select

“TPWS Setting”, and then

press “OK”.

6 Press

or

of the meter

control switches and select

“Tire Set Switching”, and then

press “OK”.

Registering ID codes

■ When the registering ID

7 Press

or

of the meter

codes

control switches and select

“Register New Valve/ID” and

then press “OK”.

7

The tire pressure warning valve

and transmitter is equipped with

a unique ID code.

8 Check if the desired wheel

set (“Tire Set 1” or “Tire Set

2”) is displayed.

When new tire pressure warning

valves and transmitters are

installed, new ID codes must be

registered in the tire pressure

warning computer.

ID codes will be registered to the

displayed wheel set.

To change the wheel set to be reg-

■ How to registration ID code

istered, press

or

of the

1 Park the vehicle in a safe

place, wait for approximately

15 minutes.

meter control switches, and then

select the wheel set you wish to

register.

If ID codes have already been reg-

istered for that wheel set, the tire

pressure warning light will slowly

blink 3 times, and a message indi-

cating that change is occurring will

2 Start the EV system.

(P.231)

The ID code registration procedure

Owner's Manual_USA_M42G23_en

482

7-3. Do-it-yourself maintenance

be displayed on the multi-informa-

tion display.

10Drive straight (with occa-

sional left and right turns) at

approximately 25 mph (40

km/h) or more for approxi-

mately 10 to 30 minutes.

When registration is complete, the

tire pressure warning light will turn

off and a message indicating that

registration has been completed

will be displayed on the multi-infor-

mation display.

Registration may take longer than

normal to complete if the vehicle

speed cannot be maintained at

approximately 25 mph (40 km/h) or

more. If registration cannot be com-

pleted after driving for 1 hour or

more, perform the registration pro-

cedure again from the beginning.

“Setting Pressure Wait a

Moment”

9 Press

or

of the meter

control switches and select

“OK” and then press “OK”.

The tire pressure warning light will

slowly blink 3 times and a message

indicating that ID code registration

is being performed will be displayed

on the multi-information display.

Wheel set changing will be can-

celed and registration will begin.

■When registering ID codes

●Normally, wheel position registra-

tion can be completed within

approximately 30 minutes.

●ID code registration is performed

while driving at a vehicle speed of

approximately 25 mph (40 km/h)

or more.

When registration is being per-

formed, the tire pressure warning

light will blink for approximately 1

minute then illuminate and “--” will

be displayed for the inflation pres-

sure of each tire on the multi-infor-

mation display.

●ID codes can be registered by

yourself, but depending on the

driving conditions and driving

environment, registration may

take some time to complete.

●When using a wheel set which all

of the ID codes have already been

registered, the wheel set can be

changed in a short amount of

time.

■If ID codes are not registered

properly

●In the following situations, ID code

registration may take longer than

usual to be completed or may not

be possible.

• When the vehicle has not been

parked for approximately 15 min-

utes or more before being driven

• Vehicle is not driven at approxi-

mately 25 mph (40 km/h) or more

“Setting Pressure Wait a

Moment”

Owner's Manual_USA_M42G23_en

483

7-3. Do-it-yourself maintenance

• Vehicle is driven on unpaved

roads

Selecting wheel set

• Vehicle is driven near other vehi-

cles and system cannot recog-

nize tire pressure warning valves

and transmitters of your vehicle

over those of other vehicles

• Wheel with tire pressure warning

valve and transmitter installed is

inside or near the vehicle

Your vehicle is equipped with a

tire pressure warning system

with a function to register two

sets of ID codes. This allows for

registration of a second wheel

set, for example a winter set.

●If the vehicle is reversed during

registration, all data collected until

then will be cleared. Perform driv-

ing again.

 The wheel set can be

changed only if a second

wheel set has been registered

to the system. If a second

wheel set has not been regis-

tered, message will be dis-

played and it will not be

possible to change to the

selected wheel set.

●If registration does not complete

after driving for 1 hour or more,

perform the ID code registration

procedure again from the begin-

ning.

●If the tire pressure warning light

does not blink 3 times when start-

ing ID code registration proce-

dure, the procedure may not have

started. Perform the procedure

again from the beginning.

ID codes can be registered by

yourself.

 Only a change between both

registered wheel set is possi-

ble, mixing between these

wheel sets is not supported.

●If ID codes cannot be registered

even when performing the above

procedure, contact your Toyota

dealer.

7

 While registering ID codes, it

may not be possible to

change between wheel sets

normally. Cancel registration

before changing between

wheel sets.

Canceling ID code regis-

tration

To cancel ID code registration

after it has been started, select

“Register New Valve / ID” again

on the multi-information display.

■ How to change between

If ID code registration has been

canceled, the tire pressure

warning light will turn off.

wheel sets

1 Install the desired wheel set.

2 Start the EV system.

(P.231)

If the warning light does not turn

off, ID code registration may not

have been cancelled correctly.

To cancel registration, select

“Register New Valve / ID” again

on the multi-information display.

The ID code selecting procedure

cannot be performed while the

vehicle is moving.

Owner's Manual_USA_M42G23_en

484

7-3. Do-it-yourself maintenance

Wheel set change will begin and

the tire pressure warning light will

blink for 1 minute and then illumi-

nate. Also, while the change is

being performed, “--” will be dis-

played for the tire inflation pressure

of each tire on the multi-information

display.

3 Press

or

of the meter

control switches and select

.

4 Press

or

of the meter

control switches and select

“Vehicle Settings”, and then

press and hold the “OK”.

After approximately 2 minutes, the

wheel set change will complete, the

tire pressure warning light will turn

off, and a completion message will

be displayed on the multi-informa-

tion display.

5 Press

or

of the meter

If changing does not complete after

approximately 4 minutes, a mes-

sage indicating that the change

could not be completed will be dis-

played.

control switches and select

“TPWS Setting”, and then

press “OK”.

6 Press

or

of the meter

Check which wheel set is installed

and perform the change procedure

again from the beginning.

control switches and select

“Tire Set Switching”, and then

press “OK”.

7 Press

or

of the meter

control switches and select

“Register Valve/ID” and then

press “OK”.

8 Press

or

of the meter

“Setting Pressure Wait a

Moment”

control switches and wheel

set (“Tire Set 1” or “Tire Set

2”) is selected.

10If the specified tire inflation

pressure of the wheel set

installed differs from that of

the previous set, it will be

necessary to perform the tire

inflation pressure setting pro-

cedure of the tire pressure

warning system.

9 Press

or

of the meter

control switches and select

“OK” and then press “OK”.

The tire pressure warning

light will slowly blink 3 times,

a message indicating that

change is occurring will be

displayed, and the wheel set

change will begin.

If the specified tire inflation pres-

sure is the same, it will not be nec-

essary to perform the tire inflation

pressure setting procedure.

Owner's Manual_USA_M42G23_en

485

7-3. Do-it-yourself maintenance

11Register the position of each

Replacing the tire

wheel.

When replacing the tires

yourself, prepare the neces-

sary tools and a jack.

This vehicle uses wheel

bolts.

When using wheels that

were installed when the

vehicle was shipped from

the factory, specialized Toy-

ota genuine wheel bolts

must be used.

If necessary tire replace-

ment seems difficult to per-

form, contact your Toyota

dealer.

Before jacking up the

vehicle

 Stop the vehicle in a safe

place on a hard, flat surface.

7

 Set the parking brake.

 Shift the shift position to P.

 Stop the EV system.

 Vehicles with power back

door: Turn off the power back

door system. (P.185)

■Tools

As your vehicle is equipped with an

emergency tire puncture repair kit,

the following tools for replacing a

tire are not included with your vehi-

cle. They can be purchased your

Toyota dealer.

●Jack

●Jack handle

Owner's Manual_USA_M42G23_en

486

7-3. Do-it-yourself maintenance

●Guide pin

●Wheel bolt socket

Owner's Manual_USA_M42G23_en

487

7-3. Do-it-yourself maintenance

Location of the tools

Guide pin^*

Towing eyelet

Wheel bolt wrench

Jack^*

7

Jack handle^*

Wheel bolt socket^*

*

: They can be purchased your Toyota dealer.

●Do not use other tire jacks for

WARNING

replacing tires on this vehicle.

■Using the tire jack

●Put the jack properly in its jack

point.

Observe the following precau-

tions.

Improper use of the tire jack may

cause the vehicle to suddenly fall

off the jack, leading to death or

serious injury.

●Do not put any part of your body

under the vehicle while it is sup-

ported by the jack.

●Do not start the EV system or

drive the vehicle while the vehi-

cle is supported by the jack.

●Do not use the tire jack for any

purpose other than replacing

tires or installing and removing

tire chains.

Owner's Manual_USA_M42G23_en

488

7-3. Do-it-yourself maintenance

WARNING

Wheel chock

positions

Tire

●Do not raise the vehicle while

someone is inside.

In front of the

front right-hand

side tire

Rear left-hand

●When raising the vehicle, do not

put an object on or under the

jack.

In front of the

●Do not raise the vehicle to a

height greater than that required

to replace the tire.

Rear right-hand front left-hand

side tire

2 Slightly loosen the wheel

●Use a jack stand if it is neces-

sary to get under the vehicle.

bolts (one turn).

●When lowering the vehicle,

make sure that there is no-one

near the vehicle. If there are

people nearby, warn them

vocally before lowering.

Replacing a flat tire

1 Chock the tires.

3 Turn the

part of the jack by

hand and place the top of the

jack in the position shown in

the illustration.

Wheel chock

positions

Tire

Behind the rear

Front left-hand right-hand side

tire

Behind the rear

Front right-hand

left-hand side tire

Owner's Manual_USA_M42G23_en

489

7-3. Do-it-yourself maintenance

 Front

4 Install the wheel bolt wrench

in jack handle.

5 Raise the vehicle until the tire

is slightly raised off the

ground.

 Rear

6 Remove the uppermost

7

wheel bolt and install the

guide pin

by hand.

Turn the guide pin clockwise to

tighten it until it stops.

7 Remove all the wheel bolts

and the tire.

When resting the tire on the

Owner's Manual_USA_M42G23_en

490

7-3. Do-it-yourself maintenance

ground, place the tire so that the

wheel design faces up to avoid

scratching the wheel surface.

●Failure to follow these precau-

tions could cause the wheel

bolts to loosen and the tire to fall

off, resulting in death or serious

injury.

• The contact surfaces of the

wheel bolt and wheel are

designed specifically to fit

together. When using wheels

that were installed when the

vehicle was shipped from the

factory, use specialized Toyota

genuine wheel bolts. Do not use

wheel bolts designed for other

models, model years or types

even if they are Toyota genuine

parts. If the vehicle does not

have wheels that were installed

to the vehicle when it was

shipped from the factory, the

factory-installed wheel bolts

may not be appropriate for the

wheel. Contact either the

WARNING

■Replacing a flat tire

●Do not touch the disc wheels or

the area around the brakes

immediately after the vehicle

has been driven.

After the vehicle has been

driven the disc wheels and the

area around the brakes will be

extremely hot. Touching these

areas with hands, feet or other

body parts while changing a tire,

etc. may result in burns.

retailer where the wheels were

purchased or the manufacturer

of the wheels for proper installa-

tion advice.

Owner's Manual_USA_M42G23_en

491

7-3. Do-it-yourself maintenance

■Guide pin

WARNING

When removing or installing a tire,

make sure to use the guide pin.

Also, the guide pin is made of

resin. It may be damaged if the

wheel is placed anywhere other

• Never apply oil or grease to the

wheel bolts or their contact sur-

face on the wheel

.

Doing so may cause the wheel

bolts to be tightened exces-

sively, leading to damage to the

wheel bolts, the threaded por-

than

or if a large amount of

force is applied to the guide pin.

tion the wheel bolts install to

,

or the wheel.

Remove any oil or grease that

has adhered when installing the

wheel bolts.

■Replacing a flat tire for vehi-

cles with power back door

In cases such as when replacing

tires, make sure to cancel the

power back door system

(P.185). Failure to do so may

cause the back door to operate

unintentionally if the power back

door switch is accidentally

touched, resulting in hands and

fingers being caught and injured.

• After replacing a tire, check the

tightening torque as soon as

possible. If you cannot confirm

the tightening torque yourself,

have the vehicle inspected at

your Toyota dealer.

7

• If a wheel bolt hole in a wheel or

the threads of a wheel bolt or

the wheel hub are deformed,

cracked, rusty or otherwise

damaged, have the vehicle

inspected by your Toyota

dealer.

NOTICE

■Repairing or replacing tires,

wheels, tire pressure warn-

ing valves, transmitters and

tire valve caps

P.476

■When tightening the wheel

bolts

Installing the tire

Do not tighten the wheel bolts

excessively.

Doing so may cause the wheel

bolts, the threads of the wheel

hub, or the wheel to be damaged.

1 Remove any dirt or foreign

matter from the wheel con-

tact surfaces and wheel

bolts.

If foreign matter is on the wheel

contact surface, the wheel bolts

may loosen while the vehicle is in

Owner's Manual_USA_M42G23_en

492

7-3. Do-it-yourself maintenance

motion, causing the tire to come off.

4 Remove the guide pin and

loosely tighten the wheel bolt

as in step 3.

2 Align a wheel bolt hole on the

tire with the guide pin, and

set the tire on the guide pin.

5 Lower the vehicle.

Securely set the tire so that its

wheel is touching the contact sur-

face.

6 Securely tighten the wheel

bolts two or three times in the

order shown in the illustration

using a wheel bolt wrench.

3 Loosely tighten each wheel

bolt by hand or using a wheel

Tightening torque:

103 ft•lbf (140N•m, 14.3 kgf•m)

bolt socket

.

Push the tire to prevent it from fall-

ing.

Do not use the wheel bolt socket for

anything other than loosely tighten-

ing the wheel bolts by hand.

7 Stow all the tools.

Owner's Manual_USA_M42G23_en

493

7-3. Do-it-yourself maintenance

Tire inflation pressure

Inspection and adjust-

ment procedure

Make sure to maintain the

proper tire inflation pres-

sure. Tire inflation pressure

should be checked at least

once per month. However,

Toyota recommends that

tire inflation pressure be

checked once every two

weeks. (P.557)

Tire valve

Checking the specified

tire inflation pressure

Tire pressure gauge

1 Remove the tire valve cap.

The recommended cold tire

inflation pressure and tire size

are displayed on the tire and

loading information label.

(P.557)

2 Press the tip of the tire pres-

sure gauge onto the tire

valve.

3 Read the pressure using the

gauge gradations.

4 If the tire inflation pressure is

not at the recommended

level, adjust the pressure. If

you add too much air, press

the center of the valve to

deflate.

7

5 After completing the tire infla-

tion pressure measurement

and adjustment, apply soapy

water to the valve and check

for leakage.

6 Put the tire valve cap back

on.

■Tire inflation pressure check

interval

You should check tire inflation pres-

sure every two weeks, or at least

once a month.

Owner's Manual_USA_M42G23_en

494

7-3. Do-it-yourself maintenance

■Effects of incorrect tire inflation

pressure

WARNING

■Proper inflation is critical to

save tire performance

Driving with incorrect tire inflation

pressure may result in the following:

Keep your tires properly inflated.

If the tires are not properly

inflated, the following conditions

may occur which could lead to an

accident resulting in death or seri-

ous injury:

●Reduced electricity consumption

●Reduced driving comfort and poor

handling

●Reduced tire life due to wear

●Reduced safety

●Excessive wear

●Uneven wear

●Poor handling

●Damage to the drive train

If a tire needs frequent inflating,

have it checked by your Toyota

dealer.

■Instructions for checking tire

inflation pressure

●Possibility of blowouts resulting

from overheated tires

When checking tire inflation pres-

sure, observe the following:

●Air leaking from between tire

and wheel

●Check only when the tires are

cold.

If your vehicle has been parked for

at least 3 hours or has not been

driven for more than 1 mile or 1.5

km, you will get an accurate cold

tire inflation pressure reading.

●Wheel deformation and/or tire

damage

●Greater possibility of tire dam-

age while driving (due to road

hazards, expansion joints,

sharp edges in the road, etc.)

●Always use a tire pressure gauge.

It is difficult to judge if a tire is

properly inflated based only on its

appearance.

NOTICE

■When inspecting and adjust-

ing tire inflation pressure

●It is normal for the tire inflation

pressure to be higher after driving

as heat is generated in the tire. Do

not reduce tire inflation pressure

after driving.

Be sure to put the tire valve caps

back on.

If a valve cap is not installed, dirt

or moisture may get into the valve

and cause an air leak, resulting in

decreased tire inflation pressure.

●Never exceed the vehicle capacity

weight. Passengers and luggage

weight should be placed so that

the vehicle is balanced.

Owner's Manual_USA_M42G23_en

495

7-3. Do-it-yourself maintenance

Wheels

WARNING

■When replacing wheels

If a wheel is bent, cracked

or heavily corroded, it

should be replaced. Other-

wise, the tire may separate

from the wheel or cause a

loss of handling control.

●Do not use wheels that are a dif-

ferent size from those recom-

mended in the Owner’s Manual,

as this may result in a loss of

handling control.

●Never use an inner tube in a

leaking wheel which is designed

for a tubeless tire. Doing so may

result in an accident, causing

death or serious injury.

Wheel selection

■Wheel bolts

When replacing wheels, care

should be taken to ensure that

they are equivalent to those

removed in load capacity, diam-

Observe the following precautions

to reduce the risk of death or seri-

ous injury:

●Do not over tighten.

eter, rim width and inset^*.

●Never use oil or grease on the

wheel bolts. Oil and grease may

cause the wheel bolts to be

excessively tightened, leading

to bolt or disc wheel damage. In

addition, the oil or grease can

cause the wheel bolts to loosen

and the wheel may fall off, caus-

ing a serious accident. Remove

any oil or grease from the wheel

bolts.

Replacement wheels are avail-

able at your Toyota dealer.

*

: Conventionally referred to as off-

set.

Toyota does not recommend

using the following:

7

 Wheels of different sizes or

types

●If there are any cracks or defor-

mations in the wheel bolts, or if

the surface treatment becomes

worn, have the wheel bolts

replaced at your Toyota dealer.

Failure to follow these precau-

tions could cause the wheel

bolts to loosen and the tire to fall

off, resulting in death or serious

injury.

 Used wheels

 Bent wheels that have been

straightened

■When replacing wheels

The wheels of your vehicle are

equipped with tire pressure warning

valves and transmitters that allow

the tire pressure warning system to

provide advance warning in the

event of a loss in tire inflation pres-

sure. Whenever wheels are

■Use of defective wheels pro-

hibited

Do not use cracked or deformed

wheels.

replaced, tire pressure warning

valves and transmitters must be

installed. (P.476)

Doing so could cause the tire to

leak air during driving, possibly

causing an accident.

Owner's Manual_USA_M42G23_en

496

7-3. Do-it-yourself maintenance

Air conditioning filter

NOTICE

■Replacing tire pressure warn-

ing valves and transmitters

The air conditioning filter

must be changed regularly

to maintain air conditioning

efficiency.

●Because tire repair or replace-

ment may affect the tire pres-

sure warning valves and

transmitters, make sure to have

tires serviced by your Toyota

dealer or other qualified service

shop. In addition, make sure to

purchase your tire pressure

warning valves and transmit-

ters at your Toyota dealer.

Removal method

1 Turn the power switch off.

Confirm that the charging connec-

tor is not connected. Also, do not

use the Remote Air Conditioning

System during the procedure.

●Ensure that only genuine Toyota

wheels are used on your vehi-

cle.

Tire pressure warning valves

and transmitters may not work

properly with non-genuine

wheels.

2 Open the front passenger’s

door.

By keeping the door open, unex-

pected operation of the Remote Air

Conditioning System can be pre-

vent. (P.409)

Aluminum wheel precau-

tions

3 While pressing the claw, hold

 Use only Toyota wheel bolts

and wrenches designed for

use with your aluminum

wheels.

handle

and remove the

panel.

 When rotating, repairing or

changing your tires, check

that the wheel bolts are still

tight after driving 1000 miles

(1600 km).

 Be careful not to damage the

aluminum wheels when using

tire chains.

 Use only Toyota genuine bal-

ance weights or equivalent

and a plastic or rubber ham-

mer when balancing your

wheels.

Owner's Manual_USA_M42G23_en

497

7-3. Do-it-yourself maintenance

4 Vehicles with footwell lights:

7 Hold the filter case

and

Unplug the connector.

pull down the upper filter

case.

8 Hold the filter case

and

remove the upper filter case.

5 Unlock the filter cover ( ),

pull the filter cover out of the

claws ( ), and remove the

filter cover.

Dust and dirt (fallen leaves, etc.)

may have accumulated within the

bottom of the air conditioning unit,

so remove it with a vacuum cleaner.

7

9 Remove the air conditioning

filter from the upper and

lower filter case and replace

it with a new one.

6 Hold the filter case

and

remove the lower filter case.

Owner's Manual_USA_M42G23_en

498

7-3. Do-it-yourself maintenance

Install so that the arrow points to

the rear of the vehicle.

●Do not use the Remote Air Con-

ditioning System

10When installing, reverse the

steps listed.

NOTICE

■When using the air condition-

■When installing the filter cover

ing system

Slide the recessed part

ter cover on the upper surface of the

upper filter case as shown in the

of the fil-

●Make sure that a filter is always

installed. Using the air condi-

tioning system without a filter

may cause damage to the sys-

tem.

figure, and attach it so that it is lifted

toward the insertion part of the

cover attachment.

●The filter is replaceable. When

cleaning the filter, do not clean

with water or an air gun.

■To prevent damage to the fil-

ter cover

When moving the filter cover in

the direction of arrow to release

the fitting, pay attention not to

apply excessive force to the

claws. Otherwise, the claws may

be damaged.

■Checking interval

Inspect and replace the air condi-

tioning filter according to the mainte-

nance schedule. In dusty areas or

areas with heavy traffic flow, early

replacement may be required. (For

scheduled maintenance information,

please refer to the “Owner’s Manual

Supplement” or “Scheduled Mainte-

nance”.)

■If air flow from the vents

decreases dramatically

The filter may be clogged. Check

the filter and replace if necessary.

WARNING

■When replacing the air condi-

tioning filter

Observe the following precau-

tions. Failure to do so may result

in the air conditioning system

operating during the procedure,

possibly resulting in injury.

●Check that the charging con-

nector is not connected

Owner's Manual_USA_M42G23_en

499

7-3. Do-it-yourself maintenance

Electronic key battery

Replacing the battery

1 Release the lock and remove

Replace the battery with a

new one if it is depleted.

the mechanical key.

■If the key battery is depleted

The following symptoms may occur:

●The smart key system and wire-

less remote control will not func-

tion properly.

●The operational range will be

reduced.

2 Remove the key cover.

Items to prepare

Use a screwdriver of an appropriate

size. Forcedly prying may cause

the cover damaged.

Prepare the following before

replacing the battery:

To prevent damage to the key,

cover the tip of the flathead screw-

driver with a rag.

 Flathead screwdriver

 Small flathead screwdriver

 Lithium battery CR2450

■Use a CR2450 lithium battery

●Batteries can be purchased at

your Toyota dealer, local electrical

appliance shops or camera stores.

7

●Replace only with the same or

equivalent type recommended by

the manufacturer.

●Dispose of used batteries accord-

ing to the local laws.

3 Remove the depleted battery

using a small flathead screw-

driver.

When removing the cover, the elec-

tronic key module may stick to the

cover and the battery may not be

visible.

In this case, remove the electronic

key module in order to remove the

battery.

When removing the battery, use a

screwdriver of an appropriate size.

Insert a new battery with the “+” ter-

Owner's Manual_USA_M42G23_en

500

7-3. Do-it-yourself maintenance

minal facing up.

●If you accidentally swallow a

battery or put a battery into a

part of your body, get emer-

gency medical attention imme-

diately.

■To prevent battery explosion

or leakage of flammable liq-

uid or gas

●Replace the battery with a new

battery of the same type. If a

wrong type of battery is used, it

may explode.

4 When installing the key cover

and mechanical key, install

by conducting step 2 and

step 1 with the directions

reversed.

●Do not expose batteries to

extremely low pressure due to

high altitude or extremely high

temperatures.

●Do not burn, break or cut a bat-

tery.

WARNING

■Battery precautions

NOTICE

Observe the following precau-

tions.

■When replacing the battery

Failure to do so may result in

death or serious injury.

Use a flathead screwdriver of

appropriate size. Applying exces-

sive force may deform or damage

the cover.

●Do not swallow the battery.

Doing so may cause chemical

burns.

■For normal operation after

replacing the battery

●A coin battery or button battery

is used in the electronic key. If a

battery is swallowed, it may

cause severe chemical burns in

as little as 2 hours and may

result in death or serious injury.

Observe the following precautions

to prevent accidents:

●Always work with dry hands.

Moisture may cause the battery

to rust.

●Keep away new and removed

●Do not touch or move any other

component inside the remote

control.

batteries from children.

●If the cover cannot be firmly

closed, stop using the electronic

key and stow the key in the

place where children cannot

reach, and then contact your

Toyota dealer.

●Do not bend either of the battery

terminals.

Owner's Manual_USA_M42G23_en

501

7-3. Do-it-yourself maintenance

3 Remove the fuse.

Only type A fuse can be removed

using the pullout tool.

Checking and replac-

ing fuses

If any of the electrical com-

ponents do not operate, a

fuse may have blown. If this

happens, check and replace

the fuses as necessary.

Checking and replacing

fuses

4 Check if the fuse is blown.

1 Turn the power switch off.

Replace the blown fuse with a new

fuse of an appropriate amperage

rating. The amperage rating can be

found on the fuse box lid.

Confirm that the charging connec-

tor is not connected. Also, do not

use the Remote Air Conditioning

System during the procedure.

 Type A

2 Open the fuse box cover.

 Motor compartment

Push the tab in and lift the lid off.

7

Normal fuse

Blown fuse

 Type B

 Left side instrument panel

Remove the lid.

Normal fuse

Owner's Manual_USA_M42G23_en

502

7-3. Do-it-yourself maintenance

Blown fuse

 Type C

WARNING

■To prevent system break-

downs and vehicle fire

Observe the following precau-

tions.

Failure to do so may cause dam-

age to the vehicle, and possibly a

fire or injury.

●Never use a fuse of a higher

amperage rating than that indi-

cated, or use any other object in

place of a fuse.

●Always use a genuine Toyota

fuse or equivalent.

Never replace a fuse with a

wire, even as a temporary fix.

Normal fuse

Blown fuse

●Do not modify the fuses or fuse

boxes.

■After a fuse is replaced

●When installing the lid, make sure

that the tab is installed securely.

NOTICE

●If the lights do not turn on even

after the fuse has been replaced,

a bulb may need replacement.

■Before replacing fuses

Have the cause of electrical over-

load determined and repaired

Toyota dealer as soon as possi-

ble.

●If the replaced fuse blows again,

have the vehicle inspected Toyota

dealer.

■If there is an overload in a cir-

cuit

The fuses are designed to blow, pro-

tecting the wiring harness from

damage.

■When replacing an electronic

component, such as a lights,

etc.

Toyota recommends that you use

genuine Toyota products designed

for this vehicle. Because certain

bulbs are connected to circuits

designed to prevent overload, non-

genuine parts or parts not designed

for this vehicle may be unusable.

Owner's Manual_USA_M42G23_en

503

7-3. Do-it-yourself maintenance

Headlight aim

Adjusting the headlight

aim

Vertical movement adjust-

ing bolts

1 Using a Phillips-head screw-

driver, turn bolt A in either

direction.

Remember the turning direc-

tion and the number of turns.

Adjustment bolt A

Adjustment bolt B

2 Turn bolt B the same number

of turns and in the same

direction as step 1.

Before checking the head-

light aim

If the headlight cannot be adjusted

using this procedure, take the vehi-

cle to your Toyota dealer to adjust

the headlight aim.

 Make sure the vehicle has a

full tank of gasoline and the

area around the headlight is

not deformed.

7

 Park the vehicle on level

ground.

 Make sure the tire inflation

pressure is at the specified

level.

 Have someone sit in the

driver’s seat.

 Bounce the vehicle several

times.

Owner's Manual_USA_M42G23_en

504

Light bulbs

7-3. Do-it-yourself maintenance

If any exterior light does not

turn on, have it replaced by

your Toyota dealer.

■LED lights

The lights consist of a number of

LEDs. If any of the LEDs burn out,

take your vehicle to your Toyota

dealer to have the light replaced.

■Condensation build-up on the

inside of the lens

Temporary condensation build-up

on the inside of the headlight lens

does not indicate a malfunction.

Contact your Toyota dealer for more

information in the following situa-

tions:

●Large drops of water have built up

on the inside of the lens.

●Water has built up inside the

headlight.

■When replacing an electronic

component, such as a lights,

etc.

P.502

Owner's Manual_USA_M42G23_en

Maintenance and care -> Do-it-yourself maintenance for Your Toyota bZ4X SUV First Generation (2022-2024)

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