2023 TOYOTA MIRAI open gas tank

862-1. Fuel cell electric vehicle
Owners Manual_USA_M62064_en
■Basic concepts of hydrogen
safety
●Prevent leakage
The pipe joints o f the hydrogen
pipelines are designed to prevent
leaks.
The joints are checked for gas leak-
age at every official vehicle inspec-
tion.
●Detect to stop leakage
• The vehicle is equipped with
hydrogen detectors. If the hydro-
gen detectors detect a leak, the
hydrogen tank valves automati-
cally close to prevent more hydro-
gen from escaping.
• The vehicle is equipped with a col- lision sensor. If the collision sen-
sor detects a collision, the
hydrogen tank valves automati-
cally close to prevent hydrogen
gas from leaking from any dam- aged components.
●Disperse the leaked hydrogen gas
The hydrogen tanks and pipelines
are located outside of the passenger
compartment, so any leaked gas will
disperse into the atmosphere by
design.
●Eliminate sources of fire
No source of fire is located near the
hydrogen pipelines by design.
Ease of accumu-
lation
 Disperses
upward and is
diluted to safe
concentrations
in open air
 Does not
adhere to cloth-
ing
Spreads on the
ground or floor
 Does not
adhere to cloth-
ingSpreads on the
ground or floor
 Adheres to
clothing
Detectability
 Due to its color-
less and odor-
less state,
difficult to
detect by sight
or smell
 Vehicle hydro-
gen detectors
will display a
warning on the
multi-informa-
tion display
Detectable by
odor and gas
leaking noiseDetectable by
color and odor
Hydrogen gasLPG (Liquid
Petroleum Gas)Gasoline
WARNING
■Hydrogen-related compo-
nents
●Never alter, customize, or disas-
semble any hydrogen-related
parts.

2105-4. Refueling
Owners Manual_USA_M62064_en
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.497
■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.83 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.

2125-4. Refueling
Owners Manual_USA_M62064_en
1Press the opener switch.
If the “READY” indicator is on or the
power switch is in ON, the fuel door
will not be unlocked.
2Remove the cap and attach it
to the holder.
■If “Stop in a Safe Place Turn
Power OFF Open Hydrogen
Filler Door” is displayed on the
multi-information display
Stop the vehicle in a safe place and
press the fuel door opener switch
once more with the following proce-
dure:
1 Shift the shift position to P.
2 Turn the power switch off.
3 Press the fuel door opener
switch.
■Sounds during filling
When fueling with compressed
hydrogen gas, noises from gas flow-
ing through the hydrogen gas noz-
zle and hydrogen tank valves can
sometimes be heard. ( P. 7 7 )
1Replace the cap.
2 Close the fuel door.
NOTICE
●Do not put anti-freeze in the fuel
inlet opening. If foreign materi-
als enter the fuel inlet opening,
it may lead to damage.
●Do not use a hydrogen gas fuel-
ing nozzle that has water drop-
lets attached to it, when fueling.
The attached water droplets will
freeze and the hydrogen gas
fueling nozzle may no be able to
be removed.
Opening the fuel door
Closing the fuel door

572
Owners Manual_USA_M62064_en
HYDROGEN STATION INFORMATION
Auxiliary catch lever (P.406)
Trunk opener ( P.133)
Fuel door ( P.212)
Fuel door opener ( P.212)
Hood lock release lever ( P.406)
Tire inflation pressure ( P.501)
Hydrogen tanks’
fuel capacityP.497
Fuel typeCompressed hydrogen gasP.497
Cold tire inflation
pressureP.501