2020 TOYOTA MIRAI fuel

271-1. For safe use
1
For safety and security
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WARNING
Observe the following precautions.
Failure to do so may cause the driver’s floor mat to slip, possibly interfering
with the pedals while driving. An unexpectedly high speed may result or it may
become difficult to stop the vehicle. This could lead to an acc ident, resulting in
death or serious injury.
■ When installing the driver’s floor mat
● Do not use floor mats designed for other models or different mo del year
vehicles, even if they are Toyota Genuine floor mats.
● Only use floor mats designed for the driver’s seat.
● Always install the floor mat securely using the retaining hooks (clips) pro-
vided.
● Do not use two or more floor mats on top of each other.
● Do not place the floor mat bottom-side up or upside-down.
■ Before driving
● Check that the floor mat is securely
fixed in the correct place with all the
provided retaining hooks (clips). Be
especially careful to perform this check
after cleaning the floor.
● With the fuel cell system stopped and
the shift position in P, fully depress each
pedal to the floor to make sure it does
not interfere with the floor mat.

761-2. Emergency assistance
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Enhanced Roadside Assistance
Enhanced Roadside As
sistance adds GPS data to the already
included warranty-based Toyota roadside service.
Subscribers can press the “SOS” button to reach a Safety Connec t
response-center agent, who can he lp with a wide range of needs,
such as: towing, flat tire, fuel delivery, etc. For a description of the
Enhanced Roadside Assistance se rvices and their limitations,
please see the Safety Connect Te rms and Conditions, which are
available at Toyota.com in the United States, Toyotapr.com in
Puerto Rico and Toyota.ca in Canada.
Important! Read this informatio n before using Safety Connect.
■Exposure to radio frequency signals
The Safety Connect system installed in your vehicle is a low-po wer
radio transmitter and receiver. I t receives and also sends out radio
frequency (RF) signals.
In August 1996, the Federal Communications Commission (FCC)
adopted RF exposure guidelines with safety levels for mobile wi re-
less phones. Those guidelines are consistent with the safety stan-
dards previously set by the following U.S. and international
standards bodies.
● ANSI (American National Stand ards Institute) C95.1 [1992]
● NCRP (National Council on Radi ation Protection and Measure-
ment) Report 86 [1986]
● ICNIRP (International Commission on Non-Ionizing Radiation
Protection) [1996]
Those standards were based on comprehensive and periodic eval-
uations of the relevant scienti fic literature. Over 120 scientists, engi-
neers, and physicians from unive rsities, and government health
agencies and industries reviewed the available body of research to
develop the ANSI Standard (C95.1).
The design of Safety Connect complies with the FCC guidelines i n
addition to those standards.
Safety information for Safety Connect

781-3. Theft deterrent system
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Immobilizer system
The indicator flashes after the
power switch has been turned off
to indicate that the system is oper-
ating.
The indicator stops flashing after
the power switch has been turned
to ACCESSORY or ON mode to
indicate that the system has been
canceled.
The vehicle’s keys have built-in transponder chips that prevent
the fuel cell system from starting if a key has not been previ-
ously registered in the veh icle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehi-
cle.
This system is designed to help prevent vehicle theft but does
not guarantee absolute security against all vehicle thefts.

811-3. Theft deterrent system
1
For safety and security
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Alar m
The alarm uses light and sound to give an alert when an intrusion is
detected.
The alarm is triggered in the following situations when the ala rm is
set:
● A locked door or trunk is unlocked or opened in any way other t han
using the entry function, wireles s remote control or mechanical key.
(The doors will lock a gain automatically.)
● The hood is opened.
Close the doors, trunk and hood,
and lock all the doors. The system
will be set automatically after 30
seconds.
The indicator changes from being
on to flashing when the system is
set.
Do one of the following to d eactivate or stop the alarm:
● Unlock the doors or open the trunk.
● Turn the power switch to ACCESSORY or ON mode, or start the
fuel cell system. (The alarm wil l be deactivated or stopped after a
few seconds.)
The alarm
Setting the alarm system
Deactivating or stopping the alarm

85
Fuel cell system2
MIRAI_OM_USA_OM62073U2. Fuel cell vehicle
Fuel cell vehicle characteristics ................... 86
Fuel cell vehicle precautions ....................... 90
Advice for driving fuel cell vehicles ........................... 102

862. Fuel cell vehicle
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Fuel cell vehicle characteristics
This diagram is for illustrative purposes only and may differ from the
actual vehicle.
Fuel cell vehicles efficiently use electricity, which is genera ted
by a chemical reaction between hydrogen and oxygen in a fuel
cell stack, and electricity charged in a traction battery to dr ive
the electric motor (traction motor).
The fuel is H
2 (compressed hydrogen gas), so the exhaust is
only water and water vapor. As they do not release emissions
such as CO
2 (Carbon Dioxide) and NOx (Nitrogen Oxides), fuel
cell vehicles are environm entally friendly vehicles.
Fuel cell vehicle components
Fuel cell stack
Hydrogen tanks
Traction battery Tailpipe
Fuel cell converter
Electric motor (traction motor)

872. Fuel cell vehicle
2
Fuel cell system
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The electric motor (traction motor) allows smooth, powerful takeoff
and acceleration. This vehicle dr ives similarly to a gasoline vehicle
without any special actions by the driver. ( P. 172) As there are no
engine sounds and the vehicle is q uiet, operation noises unique to
fuel cell vehicle com ponents may be heard. ( P. 8 8 )
The system may behave differently on cold days. It is performin g a
special cold-start process to im prove start-up performance. (P. 189)
Operation noises ( P. 88), purge process ( P. 189), etc., differ from
usual. However, this is not a malfunction.
Compressed hydrogen gas fuel can be filled at hydrogen stations .
Opening the fuel door (P. 213)
Driving the vehicle
Fuel cell system
Fuel filling

882. Fuel cell vehicle
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■Sounds unique to the fuel cell vehicle
Due to the design of your fuel cell vehicle, there are various relays, valves
and pumps which under normal driving conditions will produce so unds. This
is a normal characteristic of the vehicle and does not indicate a malfunction.
Furthermore, way of hearing may differ based on usage environme nt or con-
dition.
Noticeable soundsSource of the sounds
Clunking, clicking and clack-
ingOperation of relays and hydrogen tank
valves
Sounds may come from under the floor or
behind the rear seats.
(Sounds may be heard when starting the
fuel cell system.)
KnockingThe parking lock is engaged
Sounds may come from the motor
compartment.
(Sounds may be heard when press the P
position switch or stopping the fuel cell
system.)
Whooshing, squealingGas is flowing through the nozzle and
valvesSounds may come from behind the rear
seats, or from the dispenser hose/nozzle.
(Sounds may be heard when filling the
fuel.)
• High pitch sound
• Gurgle sound
• Pulsing soundOperation of the pumpsSounds may come from the motor com-
partment or under the front seats.
(In particular, sounds may be heard when
starting the fuel cell system, accelerating
from a stop, or press the H
2O switch. The
sound may be louder when in Br mode or
when the vehicle decelerates during
dynamic radar cruise control.)
Humming soundOperation of the pumps are speeding up
Sounds may come from the motor com-
partment or under the front seats.
(In particular, sounds may be heard when
accelerating or decelerating.)
Whooshing sound Operation of the hydrogen injectorSounds may come from under the front
seats or behind the rear seats.
(In particular, sounds may be heard when
starting the fuel cell system, driving at low
speeds, or charging the traction battery.)