2023 TOYOTA MIRAI display

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.

872-1. Fuel cell electric vehicle
Owners Manual_USA_M62064_en
2
Fuel cell system
WARNING
●The hydrogen tanks, fuel cell
stack, hydrogen pipelines, and
connecting components are
filled with hydrogen gas. Do not
remove or disassemble these
parts. Doing so can cause a
hydrogen gas leak, resulting in
fire or explosion of the vehicle,
which may result in death or
serious injury.
■When hydrogen gas leak or
other malfunctio n is detected
●If a large amount of hydrogen
gas leaking is noticed, turn off
the power switch, exit the vehi-
cle, and stay far away from it.
Display warning signs and keep
sources of fire away from the
vehicle. If possible, get assis-
tance. When the above is done,
immediately contact your Toyota
dealer.
●If you notice gas leaking or any
other malfunction, immediately
stop the vehicle in a safe and
well-ventilated place, exit the
vehicle, and stay far away from
it.
●If a warning message is dis-
played in the multi-information
display, immediately stop the
vehicle in a safe, well-ventilated
outdoor place.
■Tailpipe
●Do not directly touch the water
or steam coming out of the tail-
pipe. Doing so may cause low-
temperature burns.
●The fuel cell electric vehicle
generates water during power
generation. The generated
water discharged from the tail-
pipe is not suitable for drinking.
Never drink the water coming
out of the tailpipe.
●You may notice a strange odor
from the tailpipe for a while after
the purchase of a new vehicle
or after an extended period of
non-use, but this is not a mal-
function. Also, the odor is harm-
less but it may be unpleasant,
so do not breathe in the
exhaust.
■High-voltage and high-tem-
perature precautions
This vehicle is equipped with a
high-voltage system. Follow the
instructions below as high-volt-
ages can cause severe burns and
electric shock that may result in
death or serious injury.
●Never touch, disassemble,
remove, or replace the high-
voltage parts, cables (orange),
or connectors.
●The components inside the fuel
cell unit compartment will
become hot during operation.
Be careful of both the high-volt-
age and high-temperature, and
always obey the warning labels
on the vehicle.
●Never touch the service plug
that is installed on the traction
battery. The service plug is used
to block high-voltages coming
from the traction battery during
maintenance or repair at your
Toyota dealer.

882-1. Fuel cell electric vehicle
Owners Manual_USA_M62064_en
WARNING
■Road accident cautions
In the event of an accident,
observe the following precautions.
Failure to do so c an cause fire or
electric shocks, resulting in death
or serious injury.
●Stop the vehicle i n a safe place
to prevent subsequent acci-
dents. Shift the shift position to
P and apply the parking brake.
●Check for hydrogen gas leak-
age.
Hydrogen leaks will cause a
warning message to be shown
on the multi-information dis-
play. Larger leaks may also be
audible.
●If a large amount of hydrogen
gas leaking is noticed, turn off
the power switch, exit the vehi-
cle, and stay far away from it.
Display warning signs and keep
sources of fire away from the
vehicle. If possible, get assis-
tance. When the above is done,
immediately contact your Toyota
dealer.
●Do not touch the high-voltage
parts, cables (orange), or con-
nectors.
●If electric wires are exposed
inside or outside your vehicle,
an electric shock may occur.
Never touch exposed electric
wires.
●If a fluid leak occurs, do not
touch the fluid as it may be the
carbonate ester-based organic
electrolyte from t he traction bat-
tery. If it comes into contact with
your skin or eyes, wash it off
immediately with a large
amount of water, and seek
immediate medical attention.
●In case of a vehicle fire, the
hydrogen gas in the hydrogen
tanks is released angled down-
ward on both the right side of
the vehicle as well as the rear of
the vehicle, in order to reduce
damage to the hydrogen tanks.
Keep away from the vehicle and
do not stand on either the right
side or the rear of the vehicle.
●If a vehicle fire occurs, it can be
extinguished with a Class A, B,
or C fire extinguisher. If using
water, apply a large amount
from a hydrant.
●If your vehicle needs to be
towed, do so with the rear
wheels lifted. If the wheels are
touching the ground, the electric
motor (traction motor) may con-
tinue to generate electricity.
This may cause a fire.
■Traction battery
●Never resell, trans fer, or modify
the traction batte ry. To prevent
accidents, traction batteries that
have been removed from dis-
posed vehicle are collected
through Toyota dealers. Do not
dispose of the traction battery
yourself.
If the traction battery is not
properly collected, the following
may occur, resulting in death or
serious injury:
• The traction battery may be ille- gally disposed or dumped, and
it is hazardous to the environ-
ment. Additionally, someone
may touch a high-voltage part,
resulting in an electric shock.

892-1. Fuel cell electric vehicle
Owners Manual_USA_M62064_en
2
Fuel cell system
When a certain level of impact
from an accident is detected, the
fuel cell system is shut down
and the system shuts out the
high voltage.
Also, the fuel supply is stopped
from the hydrogen tank valves.
If the emergency shut off system
activates, your vehicle will not
restart. To restart the fuel cell
system, contact your Toyota
dealer.
A message is automatically dis-
played when a malfunction
occurs in the fuel cell system or
an improper operation is
attempted. ( P.464)
If a warning message is shown
on the multi-information display,
read the message and follow the
instructions.
WARNING

902-1. Fuel cell electric vehicle
Owners Manual_USA_M62064_en
■If a warning light comes on, a
warning message is displayed,
or the 12-volt battery connec-
tion is disconnected
The fuel cell system may not be
able to restart.
If the “READY” indicator does not
come on, even when the start pro-
cedure is repeated, contact your
Toyota dealer.
There are air intake vents on
each side of the rear seatback
with the purpose of cooling the
traction battery. If the vents are
blocked, it may interfere with the
cooling of the traction battery.
If input/output of the traction battery
becomes limited and the distance
that the vehicle can be driven using
the traction motor is reduced, the
fuel economy may be reduced.
Traction battery air intake
vents
NOTICE
■Traction battery air intake
vents
●Make sure not to block the air
intake vents with anything, such
as cover, or luggage. The
input/output of t he traction bat-
tery may be restricted, leading
to a reduction in traction battery
output and a malfunction.
●Periodically clean the air intake
vents to prevent them from clog-
ging. ( P.433)
●Do not get water or foreign
materials in the air intake vents
as this may cause a short circuit
and damage the traction bat-
tery.

912-1. Fuel cell electric vehicle
Owners Manual_USA_M62064_en
2
Fuel cell systemMaintaining the Fuel cell System
Indicator to Eco area on the
multi-information display can
extend your driving range.
( P.103, 108)
Drive your vehicle smoothly.
Avoid abrupt acceleration and
deceleration.
Mild acceleration and decelera-
tion can help curb wasteful fuel
consumption.
If the brakes are operated gently
and in a timely manner, a
greater amount of electrical
energy can be regenerated
when slowing down.
Repeated acceleration and
deceleration, as well as long
waits at traffic lights, will lead to decreased fuel economy. Check
traffic reports before leaving and
avoid delays as much as possi-
ble. When driving in a con-
gested traffic situations, gently
release the brake pedal to allow
the vehicle to move forward
slightly while avoiding overuse
of the accelerator pedal. Doing
so can help control excessive
fuel consumption.
Similar to an electric vehicle, a
fuel cell electric vehicle uses the
most fuel in high output driving
such as driving on a steep uphill
or at high speeds. Moderate the
vehicle speed and maintain a
steady speed.
When using Eco drive mode, the
torque corresponding to the
accelerator pedal depression
amount can be generated more
smoothly than it is in normal
conditions. In addition, the oper-
ation of the air conditioning sys-
tem (heating/cooling) will be
minimized, improving the fuel
economy. (
P.320)
 Use the air conditioning only
when necessary. Doing so
Fuel cell electric vehi-
cle driving tips
To maximize fuel economy
and range, pay attention to
the following:
Use of Fuel cell System
Indicator
Accelerator pedal/brake
pedal operation
When braking
Delays
Driving with high power
output
Using Eco drive mode
Air conditioning

93
Owners Manual_USA_M62064_en
3
3
Vehicle status information and indicators
Vehicle status informa-tion and indicators
3-1. Instrument cluster
Warning lights and indica-tors ............................... 94
Gauges and meters (with 8- inch multi-information dis-
play) ............................. 99
Gauges and meters (With 12.3-inch multi-information
display) ...................... 102
Multi-information display .................................. 105
Head-up display .......... 114
Energy monitor/consump- tion screen/air purification
screen ....................... 119

943-1. Instrument cluster
Owners Manual_USA_M62064_en
3-1.Instrument cluster
For the purpose of explanation, the following illustrations display all
warning lights and indicators illuminated.
■With 8-inch multi-information display
The units used on the meters and some indicators may differ dep ending on
the target region.
■With 12.3-inch multi-information display
War ning lights and indicators
The warning lights and indicators on the instrument cluster,
center panel and outside rear view mirrors inform the driver
of the status of the vehicle’s various systems.
Instrument cluster