Toyota Mirai (2022 year). Manual in english — page 26

419

7-3. Do-it-yourself maintenance

7

Maintena

nce
a

nd ca

re

1

Turn the power switch off.

2

Open the glove box.

3

Remove the panel.

4

Unlock the filter cover ( ),
pull the filter cover out of the

claws ( ), and remove the
filter cover.

5

Remove the filter case.

6

Remove the air conditioning
filter from the filter case and
replace it with a new one.

The “

UP” marks shown on the

filter and the filter case should be
pointing up.

■

Checking interval

Inspect and replace the air condi-

tioning filter according to the mainte-

nance schedule. In dusty areas or

Air conditioning filter

The air conditioning filter
must be changed regularly
to maintain air conditioning
efficiency.

Removing the air condi-
tioning filter

420

7-3. Do-it-yourself maintenance

areas with heavy traffic flow, early

replacement may be required. (For

scheduled maintenance information,

please refer to the “Scheduled

Maintenance Guide” or “Owner’s

Manual Supplement”.)

■

If air flow from the vents

decreases dramatically

The filter may be clogged. Check

the filter and replace if necessary.

■

Air conditioning filter with

deodorizing function

When fragrances are placed in your

vehicle, the deodorizing effect may

become significantly weakened in a

short period.

When an air conditioning odor

comes out continuously, replace the

air conditioning filter.

Remove the dust from the air
intake vents with a vacuum
cleaner etc.

Make sure to only use a vacuum to
suck out dust and clogs. Attempting
to blow out dust and clogs using an
airgun etc. may push it into the air
intake vents. (



P.422)

NOTICE

■

When using the air condition-

ing system

Make sure that a filter is always

installed.

Using the air conditioning system

without a filter may cause damage

to the system.

■

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.

Cleaning the traction

battery air intake

vents and filters

To prevent the fuel economy
from being affected, visually
inspect the traction battery
air intake vents periodically
for dust and clogs. If it is
dusty or clogged or if
“Maintenance Required for
Traction Battery Cooling
Parts See Owner’s Manual”
is shown on the multi-infor-
mation display, clean the air
intake vents using the fol-
lowing procedures:

Cleaning the air intake
vents

421

7-3. Do-it-yourself maintenance

7

Maintena

nce
a

nd ca

re

If dust and clogs cannot be com-
pletely removed with the air
intake vent cover installed,
remove the cover and clean the
filter.

1

Remove the grille.

2

Remove the filter.

3

Remove any dust and clogs
from the filter using a vacuum
cleaner, etc.

Make sure to also remove dust and

clogs from the inner side of the air

intake vent grille.
If the filter is damaged, have it

replaced by your Toyota dealer.

4

Reinstall the filter to the grille.

5

Install the grille.

■

Scheduled maintenance of the

air intake vents is necessary

when

In some situations such as when the

vehicle is used frequently or in

heavy traffic or dusty areas, the air

intake vents may need to be

cleaned more regularly. For details,

refer to the “Owner’s Warranty Infor-

mation Booklet” or “Owner’s Manual

Supplement”.

If dust and clogs cannot
be completely removed

422

7-3. Do-it-yourself maintenance

■

Cleaning the air intake vents

●

Dust in the air intake vents may

interfere with the cooling of the

traction battery. If charging/dis-

charging of the traction battery

becomes limited, the distance that

the vehicle can be driven using

the electric motor may be reduced

and the fuel economy may be

reduced. Inspect and clean the air

intake vents periodically.

●

Improper handling of the air intake

vent covers and filters may result

in damage to them. If you have

any concerns about cleaning the

filter, contact your Toyota dealer.

■

If “Maintenance Required for

Traction Battery Cooling Parts

See Owner’s Manual” is shown

on the multi-information display

●

If this warning message is shown

on the multi-information display,

remove the air intake vent covers

and clean the filters. (



P.453)

●

After cleaning the air intake vents,

start the fuel cell system and

check that the warning message

is no longer shown.

It may take approximately 20 min-

utes after the fuel cell system is

started until the warning message

disappears. If the warning message

does not disappear, have the vehi-

cle inspected by your Toyota dealer.

WARNING

■

When cleaning the air intake

vents

●

Do not use water or other liq-

uids to clean the air intake

vents. If water is applied to the

traction battery or other compo-

nents, a malfunction or fire may

occur.

●

Before cleaning the air intake

vents, make sure to turn the

power switch off to stop the fuel

cell system.

■

When removing the air intake

vent covers

Do not touch the service plug

located near the air intake vents.

(



P.79)

NOTICE

■

When cleaning the air intake

vents

When cleaning the air intake

vents, make sure to only use a

vacuum to suck out dust and

clogs. If a compressed air blow

gun, etc. is used to blow out dust

and clogs, the dust or clogs may

be pushed into the air intake

vents, which may affect the per-

formance of the traction battery

and cause a malfunction.

■

To prevent damage to the

vehicle

●

Do not allow water or foreign

matter to enter the air intake

vent when the cover is

removed.

●

Carefully handle the removed

filter so that it will not be dam-

aged. If the filter is damaged,

have it replaced with a new filter

by your Toyota dealer.

●

Make sure to reinstall the filter

and cover to their original posi-

tions after cleaning.

●

Do not install anything to the air

intake vent other than the exclu-

sive filter for this vehicle or use

the vehicle without the filter

installed.

423

7-3. Do-it-yourself maintenance

7

Maintena

nce
a

nd ca

re

■

If the electronic 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.



Flathead screwdriver



Small flathead screwdriver



Lithium battery CR2032

■

Use a CR2032 lithium battery

●

Batteries can be purchased at

your Toyota dealer, local electrical

appliance shops or camera stores.

●

Replace only with the same or

equivalent type recommended by

the manufacturer.

●

Dispose of used batteries accord-

ing to local laws.

NOTICE

■

If “Maintenance Required for

Traction Battery Cooling

Parts See Owner’s Manual” is

shown on the multi-informa-

tion display

If the vehicle is continuously

driven with the warning message

(indicating that charging/discharg-

ing of the traction battery may

become limited) displayed, the

traction battery may malfunction.

If the warning message is dis-

played, clean the air intake vents

immediately.

Electronic key battery

Replace the battery with a
new one if it is depleted.
As the key may be damaged
if the following procedure is
not performed properly, it is
recommended that key bat-
tery replacement be per-
formed by your Toyota
dealer.

Items to prepare

424

7-3. Do-it-yourself maintenance

1

Take out the mechanical key.

2

Remove the cover.

To prevent damage to the key,

cover the tip of the flathead screw-

driver with a tape.

3

Remove the depleted battery.

Insert a new battery with the “+” ter-

minal facing up.

Replacing the battery

WARNING

■

Removed battery and other

parts

These parts are small and if swal-

lowed by a child, they can cause

choking. Keep away from chil-

dren. Failure to do so could result

in death or serious injury.

NOTICE

■

When replacing the battery

Use a flathead screwdriver of

appropriate size. Applying exces-

sive force may deform or damage

the cover.

■

For normal operation after

replacing the battery

Observe the following precautions

to prevent accidents:

●

Always work with dry hands.

Moisture may cause the battery

to rust.

●

Do not touch or move any other

component inside the remote

control.

●

Do not bend either of the battery

terminals.

425

7-3. Do-it-yourself maintenance

7

Maintena

nce
a

nd ca

re

1

Turn the power switch off.

2

Open the fuse box cover.



Fuel cell unit compartment:
type A fuse box

Push the tabs in and lift the lid off.



Fuel cell unit compartment:
type B fuse box

Remove the fuel cell unit compart-
ment cover (



P.396) and push the

tabs in and lift the lid off.



Driver’s side instrument panel

Push the tab in and remove the lid.
Make sure to push the tab in during
removal or installation.



Passenger’ side instrument
panel

Remove the cover.

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

426

7-3. Do-it-yourself maintenance

Remove the footwell lights connec-
tor.

Remove the lid.
Make sure to push the claw when
removing/installing the lid.



Trunk

Remove the luggage mat
(



P.352), and while lifting up the

luggage under tray, use a flathead
screw driver and remove the clip.

Push the tab in and lift the lid off.

427

7-3. Do-it-yourself maintenance

7

Maintena

nce
a

nd ca

re

3

Remove the fuse with the
pullout tool.
Only type A fuse can be
removed using the pullout
tool.

4

Check if the fuse is blown.

Type A and B:

Replace the blown fuse with a new

fuse of an appropriate amperage

rating. The amperage rating can be

found on the fuse box lid.
Type C and D:

Contact your Toyota dealer.



Type A

Normal fuse

Blown fuse



Type B

Normal fuse

Blown fuse



Type C

Normal fuse

Blown fuse



Type D

Normal fuse

Blown fuse

428

7-3. Do-it-yourself maintenance

■

After a fuse is replaced

●

When installing the lid, make sure

that the tab is installed securely.

●

If the lights do not turn on even

after the fuse has been replaced,

a bulb may need replacement.

●

If the replaced fuse blows again,

have the vehicle inspected by

your Toyota dealer.

■

If there is an overload in a cir-

cuit

The fuses are designed to blow, pro-

tecting the wiring harness from

damage.

Adjustment bolt A

Adjustment bolt B



Make sure the vehicle has a
full tank of fuel and the area
around the headlight is not
deformed.



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.

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.

●

Do not modify the fuses or fuse

boxes.

NOTICE

■

Before replacing fuses

Have the cause of electrical over-

load determined and repaired by

your Toyota dealer as soon as

possible.

Headlight aim

Vertical movement adjust-
ing bolts

Before checking the head-
light aim

429

7-3. Do-it-yourself maintenance

7

Maintena

nce
a

nd ca

re

1

Using a Phillips-head screw-
driver, turn bolt A in either
direction.
Remember the turning direc-
tion and the number of turns.

2

Turn bolt B the same number
of turns and in the same
direction as step

1

.

If the headlight cannot be adjusted

using this procedure, take the vehi-

cle to your Toyota dealer to adjust

the headlight aim.

■

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.

Adjusting the headlight
aim

Light bulbs

If any lights burn out, have it
replaced by your Toyota
dealer.

431

8

8

Whe

n tr

ouble

a

rises

When trouble arises

8-1. Essential information

Emergency flashers .

432

If your vehicle has to be

stopped in an emergency

. . . . . . . . ..

432

If the vehicle is submerged

or water on the road is ris-
ing . . . . . . . .

433

8-2. Steps to take in an emer-

gency

If your vehicle needs to be

towed. . . . . . .

435

If you think something is

wrong . . . . . .

439

If a warning light turns on or

a warning buzzer sounds

. . . . . . . . ..

441

If a warning message is dis-

played. . . . . .

451

If you have a flat tire.

455

If the fuel cell system will not

start . . . . . . ...

466

If you lose your keys ...

467

If the fuel door cannot be

opened . . . . . ..

468

If the electronic key does

not operate properly ..

468

If the 12-volt battery is dis-

charged . . . . . .

471

If your vehicle overheats

. . . . . . . . ..

476

If the vehicle becomes stuck

. . . . . . . . ..

480

432

8-1. Essential information

8-1.Essential information

Press the switch to flash all of
the turn signal lights.

To turn them off, press the switch
once again.

■

Emergency flashers

●

If the emergency flashers are

used for a long time while the fuel

cell system is not operating (while

the “READY” indicator is not illu-

minated), the 12-volt battery may

discharge.

●

If any of the SRS airbags deploy

(inflate) or in the event of a strong

rear impact, the emergency flash-

ers will turn on automatically.

The emergency flashers will turn

off automatically after operating

for approximately 20 minutes. To

manually turn the emergency

flashers off, press the switch

twice.

(The emergency flashers may not

turn on automatically depending

on the force of the impact and

conditions of the collision.)

1

Steadily step on the brake
pedal with both feet and
firmly depress it.

Do not pump the brake pedal

repeatedly as this will increase the

effort required to slow the vehicle.

2

Shift the shift position to N.



If the shift position is shifted to
N

3

After slowing down, stop the
vehicle in a safe place by the
road.

4

Stop the fuel cell system.



If the shift position cannot be
shifted to N

3

Keep depressing the brake
pedal with both feet to reduce
vehicle speed as much as
possible.

4

To stop the fuel cell system,
press and hold the power
switch for 2 consecutive sec-
onds or more, or press it

Emergency flashers

The emergency flashers are
used to warn other drivers
when the vehicle has to be
stopped on the road due to
a breakdown, etc.

Operating instructions

If your vehicle has to

be stopped in an emer-

gency

Only in an emergency, such
as if it becomes impossible
to stop the vehicle in the
normal way, stop the vehicle
using the following proce-
dure:

Stopping the vehicle

433

8-1. Essential information

8

Whe

n tr

ouble

a

rises

briefly 3 times or more in suc-
cession.

5

Stop the vehicle in a safe
place by the road.



If the door can be opened,
open the door and exit the
vehicle.



If the door can not be opened,
open the window using the
power window switch and
ensure an escape route.



If the window can be opened,
exit the vehicle through the
window.



If the door and window cannot
be opened due to the rising
water, remain calm, wait until
the water level inside the
vehicle rises to the point that
the water pressure inside of
the vehicle equals the water
pressure outside of the vehi-
cle and then open the door
after waiting for the rising
water to enter the vehicle, and
exit the vehicle. When the

WARNING

■

If the fuel cell system has to

be turned off while driving

Power assist for the steering

wheel will be lost, making the

steering wheel heavier to turn.

Decelerate as much as possible

before turning off the fuel cell sys-

tem.

If the vehicle is sub-

merged or water on

the road is rising

This vehicle is not designed
to be able to drive on roads
that are deeply flooded with
water. Do not drive on roads
where the roads may be
submerged or the water
may be rising. It is danger-
ous to remain in the vehicle,
if it anticipated that the vehi-
cle will be flooded or set a
drift. Remain calm and fol-
low the following.

434

8-1. Essential information

outside water level exceeds
half the height of the door, the
door cannot be opened from
the inside due to water pres-
sure.

■

Water level exceeds the floor

When the water level exceeds the

floor and time has passed, the elec-

trical equipment will get damaged,

the power windows will not operate,

the motor stop, and the vehicle may

not be able to get moving.

■

Using an emergency escape
hammer

*

Laminated glass is used in the wind-

shield on this vehicle.
Laminated glass cannot be shat-
tered with an emergency hammer

*

.

Tempered glass is used in the win-

dows on this vehicle.

*

: Contact your Toyota dealer or

aftermarket accessory manufac-
turer for further information about
an emergency hammer.

WARNING

■

Caution while driving

Do not drive on roads where the

roads may be submerged or the

water may be rising. Otherwise

the vehicle may be damaged and

cannot move, as well as become

flooded and set a drift, which may

lead to death.

435

8-2. Steps to take in an emergency

8

Whe

n tr

ouble

a

rises

8-2.Steps to take in an emergency

If your vehicle needs

to be towed

If towing is necessary, we
recommend having your
vehicle towed by your Toy-
ota dealer or commercial
towing service, using a
wheel-lift type truck or flat-
bed truck.

Use a safety chain system
for all towing, and abide by
all state/provincial and local
laws.

WARNING

Observe the following precau-

tions.

Failure to do so may result in

death or serious injury.

■

When towing the vehicle

Be sure to transport the vehicle

with all four wheels raised off the

ground. If the vehicle is towed

with the tires contacting the

ground, the drivetrain and related

parts may be damaged, an acci-

dent may occur due to a change

in direction of the vehicle or elec-

tricity generated by the operation

of the motor may cause a fire to

occur depending on the nature of

the damage or malfunction.

■

While towing

●

When towing using cables or

chains, avoid sudden starts, etc.

which place excessive stress on

the towing eyelets, cables or

chains. The towing eyelets,

cables or chains may become

damaged, broken debris may hit

people, and cause serious dam-

age.

●

Do not perform any of the fol-

lowing as doing so may cause

the parking lock mechanism to

engage, locking the rear wheels

and possibly leading to an acci-

dent resulting in death or seri-

ous injury:

• Unfasten the driver’s seat belt

and open the driver’s door.