TOYOTA MIRAI 2020 Owners Manual (in English)

1815-1. Before driving
5
Driving
MIRAI_OM_USA_OM62073U
Cargo capacity
Total load capacity (vehicle
capacity weight) (P. 466)
When 2 people with the combined weight of A lb. (kg) are riding in
your vehicle, which has a total load capacity (vehicle capacity weight)
of B lb. (kg), the available amount of cargo and luggage load c apacity
will be C lb. (kg) as follows:
B*
2 lb. (kg) - A*1 lb. (kg) = C*3 lb. (kg)
*
1: A =Weight of people
*2: B =Total load capacity
*3: C =Available cargo and luggage load
In this condition, if 3 more passengers with the combined weigh t of D
lb. (kg) get on, the available cargo and luggage load will be r educed E
lb. (kg) as follows:
C lb. (kg) - D*4 lb. (kg) = E*5 lb. (kg)
*
4: D =Additional weight of people
*5: E =Available cargo and luggage load
As shown in the example above, if the number of occupants
increases, the cargo and luggage load will be reduced by an amo unt
that equals the increased weight due to the additional occupant s. In
other words, if an increase in the number of occupants causes a n
excess of the total load capacity (combined weight of occupants plus
cargo and luggage load), you must reduce the cargo and luggage on
your vehicle.
Calculation formul a for your vehicle

1825-1. Before driving
MIRAI_OM_USA_OM62073U
WARNING
■Things that must not be carried in the trunk
The following things may cause a fire if loaded in the trunk:
●Vehicle receptacle containing gasoline
●Aerosol cans
■Storage precautions
Observe the following precautions.
Failure to do so may prevent the pedals from being depressed pr operly,
may block the driver’s vision, or may result in items hitting t he driver or
passengers, possibly causing an accident.
●Stow cargo and luggage in the trunk whenever possible.
●Do not place cargo or luggage in or on the following locations.
• At the feet of the driver
• On the front passenger or rea r seats (when stacking items)
• On the package tray
• On the instrument panel
• On the dashboard
●Secure all items in the occupant compartment.
■Capacity and distribution
●Do not exceed the maximum axle weight rating or the total vehic le
weight rating.
●Even if the total load of occupant’s weight and the cargo load is less
than the total load capacity, d o not apply the load unevenly. I mproper
loading may cause deterioration of steering or braking control which
may cause death or serious injury.

1835-1. Before driving
5
Driving
MIRAI_OM_USA_OM62073U
Vehicle load limits
◆Total load capacity (vehicle capacity weight): (P. 4 6 6 )
Total load capacity means the co mbined weight of occupants, cargo
and luggage.
◆Seating capacity: 4 occupants (Front 2, Rear 2)
Seating capacity means the max imum number of occupants whose
estimated average weight is 1 50 lb. (68 kg) per person.
◆Towing capacity
Toyota does not recommend towing a trailer with your vehicle.
◆Cargo capacity
Cargo capacity may increase or decrease depending on the weight
and the number of occupants.
■Total load capacity and seating capacity
These details are also described on the tire and loading inform ation label.
(  P. 393)
Vehicle load limits include total load capacity, seating capaci ty,
towing capacity and cargo capacity.
WARNING
■Overloading the vehicle
Do not overload the vehicle.
It may not only cause damage to the tires, but also degrade steering
and braking ability, res ulting in an accident.

1845-1. Before driving
MIRAI_OM_USA_OM62073U
Trailer towing
Toyota does not recommend towing a trailer with your vehicle.
Toyota also does not recommend the installation of a tow hitch
or the use of a tow hitch carrier for a wheelchair, scooter, bi cy-
cle, etc. Your vehicle is not des igned for trailer towing or for the
use of tow hitch mounted carriers.

1855-1. Before driving
5
Driving
MIRAI_OM_USA_OM62073U
Dinghy towing
Your vehicle is not designed to be dinghy towed (with 4 wheels
on the ground) behind a motor home.
NOTICE
■To avoid serious damage to your vehicle
Do not tow your vehicle with four wheels on the ground.

1865-2. Driving procedures
MIRAI_OM_USA_OM62073U
Power switch
Check that the parking brake is set.
Firmly depress the brake pedal.
will be displayed on the multi-information display.
If it is not displayed, the fuel cell system cannot be started.
When shift position N is selected, the fuel cell system cannot start. Select
the P position when starting the fuel cell system. (
P. 194)
Press the power switch shortly
and firmly.
When operating the power switch,
one short, firm press is enough.
It is not necessary to press and
hold the switch.
If the “READY” indicator turns on,
the fuel cell system will operate
normally.
Continue depressing the brake
pedal until the “READY” indicator
is illuminated.
The fuel cell system can be started
from any power switch mode.
Check that the “R EADY” indicator is illuminated.
The vehicle will not move when the “READY” indicator is off.
Performing the following opera tions when carrying the elec-
tronic key on your person starts the fuel cell system or changes
power switch modes.
Starting the fuel cell system
1
2
3
4

1875-2. Driving procedures
5
Driving
MIRAI_OM_USA_OM62073U
Stop the vehicle completely.
Set the parking brake. ( P. 2 0 0 )
Press the P position switch.
(  P. 194)
Check that the shift position indica-
tor shows P. ( P. 193)
Press the power switch.
The meter display will turn off, indicating the fuel cell syste m has stopped.
(The shift position indicator is displayed for several seconds)
The H
2O indicator will illuminate, indicating exhaust water is being purged.
Release the brake pedal and check that the meter display is off.
When the fuel cell system is sto pped, water is automatically purged
from the tailpipe. To minimize water accumulation at parking ga rages,
etc., purge can be done manually before parking.
While the “READY” indicator is
on, press the H
2O switch.
The H
2O indicator on the meter
turns on.
Press the switch again to stop the
purge.
Remember that water is being gen-
erated as long as the fuel cell sys-
tem is operating. So a small
amount of water will be generated
after manual purging and before
parking.
Stopping the fue l cell system
1
2
3
Water release (H2O switch)
4
5

1885-2. Driving procedures
MIRAI_OM_USA_OM62073U
Modes can be changed by pressing the power switch with brake pedal
released. (The mode changes each time the switch is pressed.)
Off
The emergency flashers can be
used.
ACCESSORY mode
Some electrical components such
as the audio system can be used.
“Accessory” will be displayed on
the main display.
ON mode
All electrical components can be
used.
“Ignition On” will be displayed on
the main display.
■ Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minut es or ON
mode (the fuel cell system is not operating) for more than an h our with the
shift position in P, the power switch will automatically turn o ff. However, this
function cannot entirely prevent 12-volt battery discharge. Do not leave the
vehicle with the power switch in ACCESSORY or ON mode for long periods
of time when the fuel cell system is not operating.
■ Sounds and vibrations speci fic to a fuel cell vehicle
P. 88
■ Electronic key battery depletion
P. 130
Changing power switch modes

1895-2. Driving procedures
5
Driving
MIRAI_OM_USA_OM62073U■
Starting the fuel cell syst em in cold temperatures
● When the power switch is pressed and the fuel cell system start s (P. 186)
during cold temperatures, the fuel cell stack is quickly warmed up using the
waste heat during power generation.
● When the temperatures is cold, it may take some time until the “READY”
indicator turns on.
● When starting the fuel cell system during cold weather, “FC Sys tem Shut-
down due to Freezing conditions Stop Your Vehicle in a Safe Place and
Contact Your Dealer” may be displayed in the multi-information display.
The fuel cell system is frozen and can not be started. Contact a Toyota
dealer.
● The power output will be temporarily limited until the fuel cel l system
reaches full operating temperature.
● The fuel cell system noises may become louder when the temperat ure is
cold. This is the normal warm-up operation and is not a malfunc tion. In
some cases, operation noises may continue for a some time even after the
“READY” indicator has turned on. ( P. 88)
■ Stopping the fuel cell syst em in cold temperatures
● When the power switch is pressed and the fuel cell system is stopped
( P. 187) during cold temperatures, the time for water purge from the tail-
pipe may be longer than usual to prevent liquid in the fuel cel l stack from
freezing.
● The water purge time may also be long if the system is stopped before fuel
cell system warm-up is completed.
● It is normal to hear hissing and other sounds during purge. ( P. 88)
● The H
2O indicator on the meter will illuminate during purge.
●
In extremely cold temperatures, the
“READY” indicator may take more than
10 seconds to illuminate. In this case,
the status progression of the fuel cell
system startup is displayed on the multi-
information display.

1905-2. Driving procedures
MIRAI_OM_USA_OM62073U■
Parking the vehicle during cold weather
●Water may automatically purge from the tailpipe, even when the fuel cell
system is off, in order to prevent liquid in the fuel cell stac k, hydrogen pipe-
lines, etc., from freezing.
● It is normal to hear hissing and other sounds during purge. ( P. 88)
● The H
2O indicator on the meter will illuminate during purge.
■ Water release function during cold weather
In the following cases, the fuel cell system automatic drainage may not oper-
ate. It may not be possible to start the fuel cell system due t o the fuel cell
stack, hydrogen pipes, etc, being frozen.
• When transporting or towing the vehicle in frozen areas
• When the 12-volt battery terminals are disconnected and remain as such
in frozen areas
Operate the water release function with the following procedure beforehand
to prevent water from freezing in the system.
Turn the power switch to ON mode and press the H
2O switch.
Check that the H
2O indicator on the meter turns on.
While depressing the brake, press the power switch to start the fuel cell
system.
Check that the “READY” indicator turns on.
Press the power switch to stop the fuel cell system.
The water release is automatically performed. During water purg e, the
H
2O indicator turns on. (Longer than normal water purge)
■ Conditions affecting operation
P. 146
■ Notes for the entry function
P. 147
■ If the fuel cell system does not start
●The immobilizer system may not have been deactivated. ( P. 78)
Contact your Toyota dealer.
● Check that the shift position is P. ( P. 193)
The fuel cell system cannot be started when the shift position is N.
If P position is not selected, “Shift to P position to start” w ill be displayed on
the multi-information display.
● Check that the fuel door is closed.
When the fuel door is open, the fuel cell system cannot be star ted.
Close the fuel door before starting the system. ( P. 216)
1
2
3