battery capacity TOYOTA MIRAI 2022 Owners Manual

772-1. Fuel cell vehicle
Owners Manual_USA_M62084_en
2
Fuel cell system
in order to warn people nearby
of the vehicle’s approach. The
sound will stop when the vehicle
speed exceeds approximately
23 mph (37 km/h).
■How to hear the warning
In the following ca ses, the acoustic
vehicle alerting system may be diffi-
cult for surrounding people to hear.
●In very noisy areas
●In the wind or the rain
Also, as the acoustic vehicle alerting
system is installed on the front of the
vehicle, it may be m ore difficult to
hear from the rear of the vehicle
compared to the front.
*: This function can only be used in
the mainland U.S.A. It cannot be
used in other states and territo-
ries, including Alaska and Hawaii.
This system operates based on
the driving situation to enhance
fuel economy. For details about
Predictive efficient drive, refer to
“NAVIGATION AND MULTIME-
DIA SYSTEM OWNER’S MAN-
UAL”.
■Predictive deceleration sup-
port
 When the vehicle approaches
to predictive deceleration sup-
port points registered in the
navigation system, the refer-
ence operation range of the ECO Accelerator Guid-
ance (
P.102) on the multi-
information display will be
turned off to encourage the
driver to reduce excessive
acceleration.
 The regenerative braking
force will be increased
according to the driving condi-
tions to more efficiently
charge the traction battery
after the accelerator pedal is
released.
■Predictive SOC* control
The following types of controls
are performed based on data
such as road information during
route guidance by the naviga-
tion system to help ensure that
the vehicle effici ently uses elec-
tricity.
 When there is a long downhill
slope along the route, the sys-
tem reduces the traction bat-
tery level before reaching the
slope to help ensure charging
capacity for regenerative
braking while traveling down-
hill.
Predictive efficient drive
(vehicles with navigation
system)
*

1905-2. Driving procedures
Owners Manual_USA_M62084_envehicle 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 p rocedure before-
hand to prevent water from freezing
in the system.
1 Turn the power switch to ON and
press the H
2O switch.
Check that the “A ctive Purge Mode
ON” message is displayed in the
multi-information display.
2 While depressing the brake,
press the power switch to start
the fuel cell system.
Check that the “READY” indicator
turns on.
3 Press the power switch to stop
the fuel cell system.
The water release is automatically
performed. (Longer than normal
water purge)
■Purging while parked
The water release function does not
completely prevent purging while
parked. The purge capacity while
parked changes depending on out-
side temperature and operating con-
ditions.
If the “READY” indicator continues
to remain on after water release has
been performed, w ater may be gen-
erated and purged when parked.

4748-2. Steps to take in an emergency
Owners Manual_USA_M62084_en
●Use a 12-volt battery with the
same case size as the previous
12-volt battery and an equivalent
20 hour rate capacity (20HR) or
greater.
• If the sizes differ, the 12-volt bat-
tery cannot be properly secured.
• If the 20 hour rate capacity is low,
even if the time period where the
vehicle is not used is a short time,
the 12-volt battery may discharge
and the fuel cell system may not
be able to start.
●Use a 12-volt battery with a han-
dle. If a 12-volt b attery without a
handle is used, removal is more
difficult.
●After replacing, firmly attach the
following items to the exhaust hole
of the 12-volt battery.
• Use the exhaust hose that was attached to the 12-volt battery
before replacing an d confirm that
it is firmly connected to the hole
section of t he vehicle.
• Use the exhaust hole plug included with the 12-volt battery
replaced or the one installed on
the 12-volt battery prior to the
replacement. (Depending on the
12-volt battery to be replaced, the
exhaust hole may be plugged.)
Exhaust hole plug
Exhaust hole
Exhaust hose
For details, consult your Toyota
dealer.
WARNING
■When removing the 12-volt
battery terminals
Always remove the negative (-)
terminal first. If the positive (+) ter-
minal contacts any metal in the
surrounding area when the posi-
tive (+) terminal is removed, a
spark may occur, leading to a fire
in addition to ele ctrical shocks
and death or serious injury.
■Avoiding 12-volt battery fires
or explosions
Observe the following precautions
to prevent accidentally igniting the
flammable gas that may be emit-
ted from the 12-volt battery:
●Make sure each jumper cable is
connected to the correct termi-
nal and that it is not unintention-
ally in contact with any other
than the intended terminal.
●Do not allow the other end of
the jumper cable connected to
the “+” terminal to come into
contact with any other parts or
metal surfaces in the area, such
as brackets or unpainted metal.
●Do not allow the + and - clamps
of the jumper cables to come
into contact with each other.
●Do not smoke, use matches,
cigarette lighter s or allow open
flame near the 1 2-volt battery.
■12-volt battery precautions
The 12-volt battery contains poi-
sonous and corrosive acidic elec-
trolyte, while related parts contain
lead and lead compounds.
Observe the following precautions
when handling the 12-volt battery:

4849-1. Specifications
Owners Manual_USA_M62084_en
Electric motor (traction motor)
Ty p ePermanent magnet synchronous
motor
Maximum output134 kW
Maximum torque221.3 ft•lbf (300 N•m, 30.6 kgf•m)
Traction battery
Ty p eLithium-ion battery
Voltage3.7 V/cell
Capacity4.0 Ah
Quantity84 cells
Nominal voltage310.8 V
Cooling system
Capacity*
Fuel cell
stack17.3 qt. (16.4 L, 14.4 Imp. qt.)
Inverter4.2 qt. (4.0 L, 3.5 Imp. qt.)

4869-1. Specifications
Owners Manual_USA_M62084_en
*: The fluid capacity is a reference quantity.If replacement is necessary, contact your Toyota dealer.
*1: Minimum pedal clearance when depressed with a force of 112 lbf (500 N, 51 kgf) while the fuel cell system is operating.
When performing the brake pedal i nspection, also be sure to check that
Electrical system (12-volt battery)
Open voltage at 68°F (20°C):
12.0 V or higher
(Turn the power switch off and turn on the
high beam headlights for 30 seconds.)
Charging rates
Quick charge
Slow charge
15 A max.
5 A max.
Transmission
Fluid capacity*5.9 qt. (5.6 L , 4.9 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than the above type may cause ab normal
noise or vibration, or damage th e transmission of your vehicle.
Brakes
Pedal clearance*14.0 in. (102 mm) Min.
Pedal free play0.04  0.24 in. (1  6 mm)
Brake pad wear limit0.04 in. (1 mm)
Parking brake lin ing wear limit0.04 in. (1 mm)
Parking brake indicator*2
When pulling the parking brake switch for
1 to 2 seconds: comes on
When pushing the parking brake switch for
1 to 2 seconds: turns off
Fluid typeFMVSS No.116 DOT 3 or SAE J1703
FMVSS No.116 DOT 4 or SAE J1704

4939-1. Specifications
Owners Manual_USA_M62084_en
9
Vehicle specifications
Production options weight
The combined weight of installed regular
production options weighing over 5 lb. (2.3
kg) in excess of the standard items which
they replace, not previously considered in
curb weight or accessory weight, including
heavy duty brakes, ride levelers, roof rack,
heavy duty 12-volt battery, and special trim
Rim
A metal support for a tire or a tire and tube
assembly upon which the tire beads are
seated
Rim diameter (Wheel diame-
ter)Nominal diameter o f the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer’s designation
for a rim by style or code
Rim widthNominal distance between rim flanges
Vehicle capacity weight (Total
load capacity)The rated cargo and luggage load plus 150
lb. (68 kg) times the vehicle’s designated
seating capacity
Vehicle maximum load on the
tire
The load on an individua l tire that is deter-
mined by distributing to each axle its share
of the maximum loaded vehicle weight,
and dividing by two
Vehicle normal load on the tire
The load on an individua l tire that is deter-
mined by distributing to each axle its share
of curb weight, accessory weight, and nor-
mal occupant weight (distributed in accor-
dance with Table 1
* below), and dividing by
two
Weather sideThe surface area of the rim not covered by
the inflated tire
Bead
The part of the tire that is made of steel
wires, wrapped or reinforced by ply cords
and that is shaped to fit the rim
Bead separationA breakdown of the bond between compo-
nents in the bead
Tire related termMeaning

528Alphabetical Index
Owners Manual_USA_M62084_en
Average vehicle speed........... 104
B
Back-up lights Replacing light bulbs ............ 429
Battery (12-volt battery) ......... 400 Battery checking................... 400
If the 12-volt battery is dis-charged .............................. 471
Preparing and c hecking before
winter.................................. 320
Warning light ........................ 442
Battery (traction battery) ......... 79
Blind Spot Monitor (BSM) ...... 249 Enabling/disabling the system........................................... 251
Brake Brake hold ............................ 186
Fluid ............................. 399, 486
Parking brake ....................... 183
Warning light ........................ 441
Brake assist ............................ 315
Break-in tips ........ ................... 162
Brightness control Instrument panel light control . 98
BSM (Blind Spot Monitor) ...... 249 Enabling/disabling the system........................................... 251
Buzzer Hands off steering wheel warn-ing (LTA) ............................. 232
Vehicle sway warning function (LTA) ................................... 233
C
Care ................................. 380, 384 Aluminum wheel ornaments . 380
Aluminum wheels ................. 380
Exterior ................................. 380
Interior .................................. 384
Roof film ............................... 381 Seat belts .............................384
Traction battery air intake vent
...........................................420
Cargo and luggage .................167
Cargo capacity ........................170
Chains......................................321
Child restraint system ..............52 Fixed with a LATCH system ...60
Fixed with a seat belt..............56
Front passenger occupant clas-sification system ...................46
Points to remember ................52
Riding with children ................51
Types of child restraint system installation method ...............54
Using an anchor bracket ........62
Child safety ...............................51 12-volt battery precautions .401, 474
Airbag precautions .................39
Child restraint system .............54
Electronic sunshade .............356
Heated steering wheel and seat heater precautio ns..............342
How your child should wear the seat belt ................................30
Power window lock switch ....158
Power window precautions...157
Rear door child-protectors ....124
Removed electronic key battery precautions .........................424
Seat belt extender precautions .............................................30
Seat belt precautions..............51
Trunk precautions .................126
Child-protectors......................124
Cleaning ..........................380, 384 Aluminum wheel ornaments .380
Aluminum wheels .................380
Exterior .................................380
Interior ..................................384
Radar sensor ........................208

Owners Manual_USA_M62084_en
Alphabetical Index531
Front seats .............................. 135Adjustment ........................... 135
Cleaning ............................... 384
Correct driving posture ........... 27
Driving position memory....... 136
Head restraints ..................... 139
Memory recall function ......... 138
Power easy access system .. 136
Seat heaters ......................... 342
Seat position memory .......... 136
Seat ventilators .................... 342
Front side marker light Light switch .......................... 191
Replacing light bulbs ............ 429
Front turn signal lights .......... 182 Replacing light bulbs ............ 429
Turn signal lever ................... 182
Fuel .......................................... 203 Capacity ............................... 483
Fuel gauge ............................. 97
Refueling .............................. 203
Type ..................................... 483
Warning light ........................ 447
Fuel cell stack ..................... 74, 79 Fuel cell stack cover............. 396
Fuel cell stack coolant ........... 397 Checking .............................. 397
Preparing and c hecking before
winter.................................. 320
Fuel cell stack cover .............. 396
Fuel cell system ....................... 74 Acoustic vehicle alerting system............................................. 76
Emergency shut off system .... 87
High voltage components....... 79
If the fuel cell system will not
start .................................... 466
Overheating.......................... 477
Power switch ........................ 172
Precautions ............................ 79
Predictive efficient drive ......... 77
Starting the fuel cell system . 172 Water release .......................189
Fuel cell system indicator....102, 111
Fuel cell unit Compartment........................395
Fuel cell unit compartment cover...........................................396
Fuel cell unit compartment cover ...............................................396
Fuel cell vehicle ........................74 Charging the traction battery ..76
Driving tips..............................89
Handling hydrogen gas ..........84
Hydrogen gas .........................83
Hydrogen-related components79
Maintenance, repair, recycling, and disposal .........................75
Power output restriction ..........82
Power switch ........................172
Regenerative braking .............76
Road accident cautions ..........86
Running out of fuel .................81
Service plugs ..........................85
Sounds and vibrations ............75
Starting the system ...............172
Traction battery air intake vents .............................................88
Fuel cell vehicle driving tips....89
Fuel consumption Average fuel economy ..........101
Current fuel economy ...........101
Fuel door .................................203 Refueling ..............................203
When the fuel door cannot be opened ...............................468
Fuel economy .........................101
Fuel gauge.................................97
Fuses .......................................425
G
Garage door opene r ...............371
Gauges ......................................97

536Alphabetical Index
Owners Manual_USA_M62084_en
Rear sunshades ..................... 370
Rear turn signal lights ........... 182 Replacing light bulbs ............ 429
Turn signal lever ................... 182
Rear view mirror Digital Rearview Mirror ......... 144
Inside rear view mirror.......... 143
Outside rear view mirrors ..... 154
Rear window defogger ... 327, 334
Refueling ................................. 203 Capacity ............................... 483
Fuel types............................. 483
When the fuel door cannot be opened ............................... 468
Regenerative braking ............... 76 Warning lights....................... 441
Replacing Electronic key battery ........... 423
Fuses ................................... 425
Light bulbs ............................ 429
Tires ..................................... 411
Road accident cautions ........... 86
Road Sign Assist .................... 234
Roof film .................................. 381
RSA (Road Sign Assist) ......... 234
Running out of fuel .................. 81
S
Safety Connect ......................... 65
Seat belt reminder light ......... 448
Seat belts .................................. 29 Automatic Locking Retractor .. 31
Child restraint system installation............................................. 54
Cleaning and maintaining the seat belt.............................. 384
Emergency Locking Retractor 31
How to wear your seat belt..... 30
How your child should wear the seat belt................................ 30
Pregnant women, proper seat belt use................................. 29 Reminder light and buzzer ...448
Seat belt extender ..................30
Seat belt pretensioners ..........32
SRS warning light .................442
Seat heaters ............................342
Seat position memory ............136
Seat ventilators .. .....................342
Seating capacity .............170, 482
Seats ........................................135 Adjustment ...........................135
Adjustment precautions ........135
Child seats/child restraint system installation ............................52
Cleaning ...............................384
Driving position memory .......136
Head restraints .....................139
Power easy access system ..136
Properly sitting in the seat ......27
Seat heaters ....... ..................342
Seat position memory...........136
Seat ventilators.....................342
Self-restoring coat ..................380
Sensor Automatic headlight system .192
Automatic High Beam system...........................................193
BSM (Blind Spot M onitor) .....250
Dynamic radar cruise control with full-speed range ..........207
Inside rear view mirror ..........144
Intuitive parking assist ..........254
LTA (Lane Tracing Assist) .....223
Parking Support Brake function (rear-crossing vehicles) ......250
Parking Support Brake function (static objects) ....................254
PCS (Pre-Collisio n System) .207
Radar sensor ........................207
Rain-sensing windshield wipers ...........................................199
RCTA (Rear Cross Traffic Alert) ...........................................250

540Alphabetical Index
Owners Manual_USA_M62084_en
Intuitive parking assist .. 260, 444
LTA (Lane Tracing Assist) ... 223, 227, 444
Open door ......... ........... 122, 124
Open window ....................... 157
PCS (Pre-Collision System) . 444
PKSB (Parking Support Brake) ........................................... 445
Pre-collision braking ............. 212
Pre-collision warning ............ 212
RCD (Rear Camera Detection) ........................................... 445
RCTA (Rear Cross Traffic Alert) ........................................... 445
Seat belt ............................... 448
SRS airbag ........................... 442
Vehicle sway warning function (LTA) ................................... 233
Warning label ............................ 79
Warning lights .................. 93, 441 ABS ...................................... 443
Brake hold operated indicator........................................... 446
Brake Override System ........ 446
Brake system ....................... 441
Charging system .................. 442
Drive-Start Control ............... 446
Electric power steering ......... 443
Fuel cell system overheat .... 442
High coolant temperature ..... 442
Hydrogen leak ...................... 441
Intuitive parking assist OFF indi- cator ................................... 444
Low fuel level ....................... 447
LTA indicator ......................... 444
Parking brake indicator ........ 447
PKSB OFF indicato r ............. 445
Pop Up Hood........................ 443
Pre-collision system ............. 444
RCD OFF indicator............... 445
RCTA OFF indicator ............. 445
Seat belt reminder light ........ 448 Slip indicator .........................446
SRS airbag ...........................442
Tire pressure ......
..................447
Warning messages .................451
Warning reflector ....................352
Washer .....................................197 Adding ..................................399
Preparing and checking before winter ..................................320
Switch ...................................197
Washing and waxing ..............380
Weight Cargo capacity .....................170
Load limits ............................170
Weight ..................................482
Wheels .....................................417 Replacing wheels ................. 411
Size ......................................487
Window lock switch ...............158
Windows Power windows ....................156
Rear window defogger .327, 334
Washer .................................197
Windshield defogger ......326, 334
Windshield wipers ..................197 Rain-sensing windshield wipers...........................................197
Rest position.........................200
Winter driving tips ..................320
Wireless charger.....................357
Wireless remote control......... 119 Battery-Saving Function .......131
Locking/Unlocking ................ 119
Replacing the battery ...........423
?
For infor mation regarding the equipment listed
below, refer to the “NAVI-
GATION AND MULTIME-