
TABLE OF CONTENTS4
MIRAI_OM_USA_OM62004U6-1. Using the air conditioning
system and defogger
Automatic air conditioning system............................. 258
Heated steering wheel/ seat heaters .................... 267
6-2. Using the interior lights Interior lights list ................ 269• Interior lights ................. 270
• Personal lights .............. 270
6-3. Using the storage features List of storage features...... 272• Glove box...................... 273
• Console box .................. 273
• Cup holders .................. 274
• Bottle holders ................ 276
• Auxiliary box ................. 276
Trunk features ................... 277
6-4. Other interior features Other interior features ....... 279• Sun visors ..................... 279
• Vanity mirrors................ 279
• Clock ............................. 280
• Armrest ......................... 281
• Coat hooks.................... 281
• Assist grips ................... 282
• Power outlet .................. 283
• Wireless charger ........... 284
Garage door opener .......... 292
Safety Connect.................. 299 7-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 306
Cleaning and protecting the vehicle interior ........... 310
7-2. Maintenance Maintenance requirements ................... 313
General maintenance ........ 315
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions ...................... 318
Hood .................................. 320
Positioning a floor jack....... 321
Motor compartment ........... 323
12-volt battery .................... 328
Tires................................... 332
Replacing the tire............... 339
Tire inflation pressure ........ 346
Wheels............................... 349
Air conditioning filter .......... 351
Electronic key battery ........ 353
Checking and replacing fuses ................................ 355
Light bulbs ......................... 358
6Interior features7Maintenance and care

15Pictorial index
MIRAI_OM_USA_OM62004UWindshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 195
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 253
To prevent freezing (windshield wiper de-icer). . . . . . . . . . . . . P. 261
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . P. 308
Fuel door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 198
Refueling method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 198
Fuel type/hydrogen tanks’ fuel capacity . . . . . . . . . . . . . . . . . . P. 418
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 332
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . P. 421
Winter tires/tire chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 253
Checking/rotation/tire pressure warning system . . . . . . . . . P. 332
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 381
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 320
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 320
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 406
Warning message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 376
Headlights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 187
Parking lights/daytime running lights . . . . . . . . . . . . . . . . . P. 187
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 185
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 187
Stop lights
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 187
Back-up lights
Shifting the shift position to R . . . . . . . . . . . . . . . . . . . . . . . . . P. 179
Side marker lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 187
4
5
6
7
Light bulbs of the exterior lights for driving
(Replacing method: P. 358)
8
9
10
11
12
13
14
15

305
7Maintenance and care
MIRAI_OM_USA_OM62004U7-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 306
Cleaning and protecting the vehicle interior ........... 310
7-2. Maintenance Maintenance requirements ................... 313
General maintenance........ 315
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 318
Hood ................................. 320
Positioning a floor jack ...... 321
Motor compartment ........... 323
12-volt battery ................... 328
Tires .................................. 332
Replacing the tire .............. 339
Tire inflation pressure ....... 346
Wheels .............................. 349
Air conditioning filter.......... 351
Electronic key battery........ 353
Checking and replacing fuses ............................... 355
Light bulbs......................... 358

3187-3. Do-it-yourself maintenance
MIRAI_OM_USA_OM62004U
Do-it-yourself ser vice precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
ItemsParts and tools
12-volt battery
condition
(P. 328)•Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
(P. 326)• FMVSS No.116 DOT 3 or SAE J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Inverter coolant
level ( P. 324)
• “Toyota Super Long Life Coolant” or a similar high
quality ethylene glycol-based non-silicate, non-
amine, non-nitrite and non-borate coolant with long-
life hybrid organic acid technology.
“Toyota Super Long Life Coolant” is pre-mixed with
50% coolant and 50% deionized water.
• Funnel (used only for adding coolant)
Fuses ( P. 355)• Fuse with same amperage rating as original
Light bulbs
(P. 358)
Radiator and con-
denser (
P. 325)
Tire inflation
pressure
( P. 346)• Tire pressure gauge
• Compressed air source
Washer fluid
(P. 327)• Water or washer fluid containing antifreeze (for win-
ter use)
• Funnel (used only for adding water or washer fluid)

3587-3. Do-it-yourself maintenance
MIRAI_OM_USA_OM62004U
Light bulbs
■LED light bulbs
The following lights consist of a number of LEDs. If any of the LEDs burn out,
take your vehicle to your Toyota dealer to have the light replaced.
●Headlight low beams
● Headlight high beams
● Parking lights and daytime running lights
● Front side marker lights
● Front turn signal lights
● Side turn signal lights
● Tail lights
● Stop lights
● Rear side marker lights
● Rear turn signal lights
● High mounted stop lights
● License plate lights
● Back-up lights
■ Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not
indicate a malfunction.
Contact your Toyota dealer for more information in the following situations:
●Large drops of water have built up on the inside of the lens.
● Water has built up inside the headlight.
If any lights burn out, have it replaced by your Toyota dealer:
WARNING
■ Handling lights
Do not touch the lights while they are on or immediately after they have
been turned off. Doing so may result in burns.

4219-1. Specifications
MIRAI_OM_USA_OM62004U
9
Vehicle specifications
*: Light bulbs not listed in this table are LED bulbs.
Steering
Free playLess than 1.2 in. (30 mm)
Tires and wheels
Tire sizeP215/55R17 93V
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Front
36 psi (250 kPa, 2.5 kgf/cm
2 or bar)
Rear
36 psi (250 kPa, 2.5 kgf/cm2 or bar)
Wheel size 17 7 J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Light bulbs*
Light bulbsBulb No.WTy p e
Interior Vanity lights
8A
Front interior/
personal lights
8A
Rear interior light 8B
Door courtesy lights 168 5 A
Trunk light 5A
A: Wedge base bulbs (clear) B: Double end bulbs

453Alphabetical index
MIRAI_OM_USA_OM62004U
Flat tire...................................... 381
Floor mats .................................. 26
FluidBrake .................................... 420
Transmission ........................ 420
Washer ................................. 327
Front interior lights ................. 270 Wattage ................................ 421
Front passenger occupant classification system .............. 49
Front seats ............................... 138
Adjustment ............................ 138
Cleaning................................ 310
Correct driving posture ........... 28
Driving position memory ....... 140
Head restraints ..................... 145
Power easy access system ......... ....................... 140
Seat heaters ......................... 268
Seat position memory ........... 140
Front side marker lights.......... 187 Light switch ........................... 187
Replacing light bulbs............. 358
Front turn signal lights ........... 185 Replacing light bulbs............. 358
Turn signal lever ................... 185
Fuel
Capacity ................................ 418
Fuel gauge ............................ 102
Hydrogen station information.......................... 464
Refueling............................... 198
Type .............................. 198, 418
Warning light ......................... 371
Fuel cell stack ............................ 86
Fuel cell stack coolant Capacity ................................ 419
Checking ............................... 324 Fuel cell system
Characteristics ........................ 78
Cold temperatures ................ 175
Coolant type ......................... 419
Indicators .............................. 100
Multi-information display ....... 107
Precautions............................. 82
Starting the system ............... 172
Stopping the system ............. 173
Warning lights ......................... 99
Fuel cell system indicator ...... 110
Fuel cell vehicles
Characteristics ........................ 78
Charging the traction battery .................................. 81
Driving advice ......................... 94
Emergency shut off system .... 84
Emergency start function ...... 397
Emergency stops .................. 361
Fuel....................................... 418
Handling hydrogen gas........... 90
High-voltage components ....... 83
Hydrogen gas ......................... 89
Hydrogen-related components.......................... 82
If the 12-volt battery is discharged.......................... 401
If the fuel cell system will not start ........................ 396
Maintenance, repair,
recycling, and disposal ......... 81
F

454Alphabetical index
MIRAI_OM_USA_OM62004U
Opening the fuel door ........... 198
Overheating .......................... 406
Power output restriction .......... 88
Power switch......................... 172
Precautions ............................. 82
Regenerative braking.............. 81
Road accident cautions .......... 92
Running out of fuel.................. 85
Service plugs .......................... 91
Sounds and vibrations ............ 80
Starting the system ............... 172
Traction battery air intake vent....................................... 85
Vehicle proximity notification
system ......... ......................... 84
Warning message ................. 376
Water release ....................... 173
Fuel consumption............ 111, 112
Fuel door .................................. 198 Refueling............................... 198
Fuses ........................................ 355
Garage door opener ................ 292
Gauges ..................................... 102
Glove box ................................. 273
Grocery bag hooks .................. 277 H
2O switch ............................... 173
Hands-free system
(for cellular phone)
*
Head restraints ........................ 145
Headlights ................................ 187 Automatic High Beam system .......... ...................... 190
Light switch ........................... 187
Replacing light bulbs ............ 358
Heated steering wheel ............ 267
Heaters Automatic air conditioning system .......... ...................... 258
Heated steering wheel .......... 267
Outside rear view mirrors ..... 261
Seat heaters ......................... 268
High mounted stoplight
Replacing light bulbs ............ 358
High-voltage components ........ 83
Hill-start assist control ........... 232
Hood ......................................... 320 Warning message................. 376
Hooks
Coat hooks ........................... 281
Grocery bag hooks ............... 277
Retaining hooks (floor mat) .... 26
Horn .......................................... 147
Hydrogen detectors .................. 87
Hydrogen-related components............................. 82
Hydrogen tanks ......................... 86 Capacity................................ 418
Location ............................ 78, 82
G
H