2022 TOYOTA MIRAI fuel pressure

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Owners Manual_USA_M62084_en
Pictorial indexSearch by illustration
For safety
and securityMake sure to read through them
(Main topics: Child seat, theft deterrent system)
Fuel cell systemFuel cell vehicle characteristics, precautions, etc.
(Main topics: Fuel cell system)
Vehicle status
information and
indicatorsReading driving-related information
(Main topics: Meters, multi-information display)
Before driving
Opening and closing the doors and windows,
adjustment before driving
(Main topics: Keys, doors, seats)
Driving
Operations and advice which are necessary for
driving
(Main topics: Starting f uel cell system, refueling)
Interior featuresUsage of the interior features
(Main topics: Air conditioner, storage features)
Maintenance
and careCaring for your vehicle and maintenance
procedures
(Main topics: Interior and exterior, light bulbs)
When trouble
arisesWhat to do in case of malfunction and emergency
(Main topics: Battery discharge, flat tire)
Vehicle
specificationsVehicle specifications, customizable features
(Main topics: Fuel, oil, tire inflation pressure)
For ownersReporting safety defects for U.S. owners, seat belt
and SRS airbag instructions for Canadian owners
IndexSearch by symptom
Search alphabetically

4TABLE OF CONTENTS
Owners Manual_USA_M62084_en
6-1. Using the air conditioning
system and defogger
ALL AUTO control ......... 324
Automatic air conditioning system (vehicles with 8-inch
display) ........................ 325
Automatic air conditioning system (vehicles with 12.3-
inch display) ................ 332
Rear automatic air condition- ing system ................... 341
Heated steering wheel/seat heaters/seat ventilators 342
6-2. Using the interior lights Interior lights list ............ 346
6-3. Using the storage features List of storage features . 349
Trunk features ............... 352
6-4. Using the other interior fea- tures
Toyota multi-operation touch
(vehicle with the 12.3-inch
display) ........................ 353
Electronic sunshade...... 355
Other interior features ... 356
Garage door opener...... 371
7-1. Maintenance and care Cleaning and protecting the vehicle exterior ............ 380
Cleaning and protecting the vehicle interior ............. 3847-2. Maintenance
Maintenance requirements.................................... 387
General maintenance .... 388
7-3. Do-it-yourself maintenance Do-it-yourself service precau-tions ............................. 391
Hood .............................. 393
Positioning a floor jack .. 393
Fuel cell unit compartment .................................... 395
12-volt battery................ 400
Tires .............................. 403
Replacing the tire .......... 411
Tire inflation pressure .... 415
Wheels .......................... 417
Air conditioning filter ...... 419
Cleaning the traction battery air intake vents and filters
.................................... 420
Electronic key battery .... 423
Checking and replacing fuses .................................... 425
Headlight aim ................ 428
Light bulbs ..................... 429
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 rising.................................... 433
6Interior features
7Maintenance and care
8When trouble arises

15Pictorial index
Owners Manual_USA_M62084_en
Precautions for winter seas on.............................................. P.320
To prevent freezing (windshield wiper de-icer)
*............ P.329, 338
Precautions for car wash (vehicles with rain-sensing windshield wip-
ers) ....................................................................................... P.382
Fuel door ...................................................... ....................... P.203
Refueling method ............................................... .................. P.203
Fuel type/hydrogen t anks’ fuel capacity ........................ ....... P.483
Tires.......................................................... ........................... P.403
Tire size/inflation pressure ................................... ........ P.403, 487
Winter tires/tire chains ....................................... .................. P.320
Checking/rotation/tire pressur e warning system ..................P.403
Coping with flat tires......................................... .................... P.455
Hood ........................................................... ......................... P.393
Opening ............................................................................... P.393
Fuel cell unit compartment cover ............................... .......... P.396
Coping with overheating ...................................................... P.476
Warning messages ............................................... ............... P.451
Headlights/daytime running lights
*.................................. P.191
Parking lights/dayt ime running lights
*............................. P.191
Turn signal lights ............................................. .................. P.182
Tail lights.................................................... ......................... P.191
Tail lights.................................................... ......................... P.191
Stop lights
License plate lights........................................... ................. P.191
Back-up lights
Changing the shift position to R ............................... ............ P.177
Side marker lights ............................................. ................. P.191
Light bulbs of the exterior lights for driving
(Replacing method: P.429)

812-1. Fuel cell vehicle
Owners Manual_USA_M62084_en
2
Fuel cell system
High-voltage cables (orange)
Fuel cell stack (fuel cell and hydrogen pump)
Air compressor
Air conditioning compressor
■If “Hydrogen Leakage Detected
Visit Your Dealer” is displayed
on the multi-information display
A small amount of hydrogen gas
may be leaking. Have the vehicle
inspected immediately at the near-
est Toyota dealer.
■If “FCV System Shutdown Due
to Hydrogen Leakage Stop in a
Safe Place See Owner’s Man-
ual” is displayed on the multi-
information display
●Hydrogen gas may be leaking.
When hydrogen gas is leaking or
some other malfunction is
detected: P. 8 5
●The air conditioning system will
shut off automatically.
■Running out of fuel
When the vehicle has run out of fuel
and the fuel cell system cannot be
started, refuel the vehicle until the
low fuel level warning light ( P.447)
turns off before try ing to restart. It
may not be able to restart if the refu-
eled amount is too low.
■Fuel cell stack
●Depending on the usage environ-
ment, the fuel ce ll power output
may decline over the life of the
vehicle. However, this will have
almost no effect on driving perfor-
mance.
●In the following situations, the fuel
cell power output may decline
faster than normal driving:
• Extended use in areas with high amounts of dust
• Extended use in areas with high levels of sulfur (such as volcanoes
or hot springs). • Extended use in areas with high
concentrations o f the following
substances:
-Organic solvents, such as paint and
thinner
-Amine-related materials such as
ammonia
-Chlorinated substances such as
salt air and snow-melting agent
• Salt water gets into the air cleaner filter
It is recommended to replace the
air cleaner filter and clean the sur-
rounding components. Have the
vehicle inspected at your Toyota
dealer
• The number of times the fuel cell system is started and stopped is
excessively high
• Extended use in freezing tem- peratures
• Fill fuel with impurities which do not follow ISO-14687
■Hydrogen tanks
●The hydrogen tanks are the high-
pressure storage containers that
are filled with co mpressed hydro-
gen gas. The vehicle can be refu-
eled at hydrogen stations.
●The hydrogen tanks have an expi-
ration date. Vehicles with expired
hydrogen tanks must not be
driven or refueled until the hydro-
gen tanks are replaced. The expi-
ration date is written on the inside
of the fuel door. Consult your Toy-
ota dealer.
●Consult your Toyota dealer if the
hydrogen tanks or valves need to
be disposed.

902-1. Fuel cell vehicle
Owners Manual_USA_M62084_en
can help reduce excessive
fuel consumption.
In summer: When the ambient
temperature is high, use the
recirculated air mode. Doing
so will help to reduce the bur-
den on the air conditioning
system and reduce fuel con-
sumption as well.
In winter: Avoid excess heat-
ing. Use the seat heater (if
equipped) or steering heater
(if equipped) to minimize the
need for cabin heating
(P.342).
 Using eco air conditioning
mode, this helps curb fuel
consumption even with the air
conditioning system turned
on. ( P.326, 334)
Make sure to check the tire infla-
tion pressure frequently.
Improper tire inflation pressure
can cause poor fuel economy.
Also, as snow tires can cause
large amounts of friction, their
use on dry roads can lead to
poor fuel economy. Use tires
that are appropriate for the sea-
son.
Carrying heavy luggage will lead
to reduced fuel economy. Install-
ing a large roof rack will also reduce fuel economy.
Checking tire inflation
pressure
Luggage

933-1. Instrument cluster
Owners Manual_USA_M62084_en
3
Vehicle status information and indicators
Warning lights inform the driver
of malfunctions in the indicated
vehicle’s systems.
Warning lights
Hydrogen leak warn-
ing light
*1 (  P.441)
(U.S.A.)
Brake system warn-
ing light
*1 ( P.441)
(Canada)
(Red)
Brake system warn-
ing light
*1 ( P.441)
(Yellow)
Brake system warn-
ing light
*1 ( P.441)
(Red)
High coolant tempera-
ture warning light
*2
(  P.442)
Fuel cell system over-
heat warning light
*3
(  P.442)
Charging system
warning light
*3
(  P.442)
SRS warning light
*1
(  P.442)
Pop Up Hood warning
light
*1 (  P.443)
(U.S.A.)
ABS warning light*1
(  P.443)
(Canada)
ABS warning light*1
(  P.443)
(Red)
Electric power steer-
ing system warning
light
*1 ( P.443)
(Yellow)
Electric power steer-
ing system warning
light
*1 ( P.443)
(Flashes or
illuminates)
PCS warning light*1
(  P.444)
(Orange)
LTA indicator*2
(  P.444)
(Flashes)
Intuitive parking assist
OFF indicator
*4 (if
equipped) ( P.444)
(Flashes)
PKSB OFF indica-
tor
*1 (if equipped)
(  P.445)
(Flashes)
RCTA OFF indicator*1
(if equipped) ( P.445)
(Flashes)
RCD OFF indicator*1,
2
(If equipped)
(  P.445)
Slip indicator light
*1
(  P.446)
Inappropriate pedal
operation warning
light
*3 (  P.446)
(Flashes)
Brake hold operated
indicator
*1 ( P.446)
(U.S.A.)
(Flashes)
Parking brake indica-
tor ( P.447)
(Canada)
(Flashes)
Parking brake indica-
tor ( P.447)
Tire pressure warning
light
*1 (  P.447)

1053-1. Instrument cluster
Owners Manual_USA_M62084_en
3
Vehicle status information and indicators
and press and hold .
■Energy monitor
 P. 111
■Tire inflation pressure
Displays inflation pressure of
each tire.
■Meter display settings that
can be changed
 Language
Select to change the language on
the multi-information display.
 Units
Select to change t he units of mea-
sure displayed.
 (Driving information dis-
play settings)
Select to set up the following items.
• Fuel cell system
Select to enable/disable the ECO
Accelerator Guidance ( P.102).
• Fuel Economy
Select to change the display on
Fuel Economy ( P.101).
 (Audio settings)
Select to enable/disable
screen.
 (Vehicle information dis-
play settings)
• Display Contents
Select to set up the following items. Energy monitor:
Select to enable/disable the Energy
monitor (
P. 111 )
• Drive Info Type
Select to change the drive informa-
tion type display between trip and
total. ( P.104).
• Drive Info Items
Select to set the items on the upper
and lower side of the drive informa-
tion screen from three items, aver-
age speed, distance and total time.
 Trip Summary
Select to set the items displayed
when the power switch is turned off.
Pop-Up Display
Select to enable/disable pop-up
displays for each relevant system.
Multi-information display off
Select to turn the multi-information
display off.
To turn the multi-information display
on again, press any of the meter
control switches.
Default Settings
Select to reset the meter display
settings.
■Suspension of the settings dis-
play
●In the following situations, opera-
tion of the settings display will be
temporarily suspended.
• When a warning message appears on the multi-information
display
• When the vehicle begins to move
●Settings for functions not
equipped to the vehicle are not
displayed.
●When a function is turned off, the
Settings display

2035-4. Refueling
Owners Manual_USA_M62084_en
5
Driving
5-4.Refueling
 Close the all the doors and
windows.
 Set the parking brake.
 Shift the shift position to P.
 Turn the power switch off.
 Turn off the headlights.
■Fuel types
 P.483
■Notes on fueling
●Fueling will not be possible if the
pressure inside the vehicle’s
hydrogen tanks is higher than the
supply pressure of the hydrogen
station. If the hydrogen tanks are
more than half full, the vehicle will
be unable to fuel at a H35 dis-
penser. A hydrogen station with a
H70 dispenser (supply pressure of
10150 psi) [70 MPa, 714 kgf/cm
2,
700 bar] is necessary to com-
pletely fill hydrogen tanks.
●If the fueling cannot be completed
due to trouble with the station
equipment, call the number indi-
cated on the equipment.
Opening the fuel door
Fuel with compressed
hydrogen gas only at hydro-
gen stations.
Fuel at hydrogen stations
conforming with the Society
of Automotive Engineers
(SAE) J2601 fueling proto-
col or laws that may super-
sede such SAE protocols.
Refer to the Mirai Station
Finder Application in Con-
nected services,
https://www.toyota.com/
connected-services/ (for
U.S. owners) or
https://www.toyota.ca/
toyota/en/about/
connected-services (for
Canadian owners), or call 1-
800-331-4331 (for U.S.
owners) or 1-888-869-6828
(for Canadian owners).
 Observe any notices or
instructions shown at hydro-
gen stations.
The filling time and amount
of fuel may depend on out-
side temperature and the
equipment at that hydrogen
station.
Vehicles with expired hydro-
gen tanks must not be used.
Check P.81 to learn how
and when to check the expi-
ration. Consult your Toyota
dealer.
Before filling
WARNING
■When filling
Observe the following precautions
while fueling the vehicle. Failure
to do so may result in death or
serious injury.