tire pressure TOYOTA MIRAI 2019 (in English) Service Manual

4789-1. Specifications
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sure
Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressureThe maximum cold inflated pressure to which
a tire may be inflated, shown on the sidewall
of the tire
Recommended infla-
tion pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weight
The combined weight (in excess of those stan-
dard items which may be replaced) of trans-
mission, power steering, power brakes, power
windows, power seats, radio and heater, to the
extent that these items are available as fac-
tory-installed equipment (whether installed or
not)
Curb weight
The weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional
engine
Maximum loaded vehi-
cle weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant
weight150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
*
that follows
Occupant distributionDistribution of occupants in a vehicle as speci-
fied in the third column of Table 1
* below

4809-1. Specifications
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
Bias ply tire
A pneumatic tire in which the ply cords that
extend to the beads are laid at alternate
angles substantially less than 90 degrees to
the centerline of the tread
CarcassThe tire structure, except tread and sidewall
rubber which, when inflated, bears the load
ChunkingThe breaking away of pieces of the tread or
sidewall
CordThe strands forming the plies in the tire
Cord separationThe parting of cords from adjacent rubber
compounds
CrackingAny parting within the tread, sidewall, or inner-
liner of the tire extending to cord material
CT
A pneumatic tire with an inverted flange tire
and rim system in which the rim is designed
with rim flanges pointed radially inward and
the tire is designed to fit on the underside of
the rim in a manner that encloses the rim
flanges inside the air cavity of the tire
Extra load tire
A tire designed to operate at higher loads and
at higher inflation pressures than the corre-
sponding standard tire
GrooveThe space between two adjacent tread ribs
Innerliner
The layer(s) forming the inside surface of a
tubeless tire that contains the inflating medium
within the tire
Innerliner separationThe parting of the innerliner from cord material
in the carcass
Intended outboard
sidewall
(a) The sidewall that contains a whitewall,
bears white lettering, or bears manufac-
turer, brand, and/or model name molding
that is higher or deeper than the same
molding on the other sidewall of the tire, or
(b) The outward facing sidewall of an asym-
metrical tire that has a particular side that
must always face outward when mounted
on a vehicle
Tire related termMeaning

4819-1. Specifications
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
9
Vehicle specifications
Light truck (LT) tire
A tire designated by its manufacturer as pri-
marily intended for use on lightweight trucks
or multipurpose passenger vehicles
Load ratingThe maximum load that a tire is rated to carry
for a given inflation pressure
Maximum load ratingThe load rating for a tire at the maximum per-
missible inflation pressure for that tire
Maximum permissible
inflation pressureThe maximum cold inflation pressure to which
a tire may be inflated
Measuring rimThe rim on which a tire is fitted for physical
dimension requirements
Open spliceAny parting at any junction of tread, sidewall,
or innerliner that extends to cord material
Outer diameterThe overall diameter of an inflated new tire
Overall width
The linear distance between the exteriors of
the sidewalls of an inflated tire, including ele-
vations due to labeling, decorations, or protec-
tive bands or ribs
Passenger car tire
A tire intended for use on passenger cars,
multipurpose passenger vehicles, and trucks,
that have a gross vehicle weight rating
(GVWR) of 10,000 lb. or less.
PlyA layer of rubber-coated parallel cords
Ply separationA parting of rubber compound between adja-
cent plies
Pneumatic tire
A mechanical device made of rubber, chemi-
cals, fabric and steel or other materials, that,
when mounted on an automotive wheel, pro-
vides the traction and co ntains the gas or fluid
that sustains the load
Radial ply tire
A pneumatic tire in which the ply cords that
extend to the beads are laid at substantially 90
degrees to the centerline of the tread
Reinforced tire
A tire designed to operate at higher loads and
at higher inflation pressures than the corre-
sponding standard tire
Tire related termMeaning

525Alphabetical index
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
Tail lights .................................. 201Light switch ........................... 201
Replacing light bulbs............. 405
Tailpipe ....................................... 95
Talk switch
*
Telephone switches*
Theft deterrent system Alarm ...................................... 81
Immobilizer system ................. 78
Tire inflation pressure ............. 393 Maintenance data ................. 471
Warning light ......................... 421
Tire information ....................... 472 Glossary................................ 478
Size ....................................... 474
Tire identification number ..... 473
Uniform Tire Quality
Grading............................... 476
Tire pressure warning system Function ................................ 379
Installing tire pressure
warning valves
and transmitters.................. 379
Registering ID codes ............ 379
Warning light ......................... 421 Tires .......................................... 378
Chains .................................. 302
Checking............................... 378
Emergency tire puncture repair kit ............................ 434
If you have a flat tire ............. 432
Inflation pressure .......... 393, 471
Information............................ 472
Replacing.............................. 386
Rotating tires ........................ 378
Size....................................... 471
Snow tires ............................. 301
Tire pressure warning system .......... ...................... 379
Warning light......................... 421
Tools ................................. 386, 434
Top tether strap ......................... 69
Total load capacity .................. 183
Towing Dinghy towing ....................... 185
Emergency towing ................ 411
Trailer towing ........................ 184
TRAC (Traction Control) ......... 295
Traction battery ......................... 91
Air intake vent ......................... 93
Charging ................................. 89
Location ............................ 86, 91
Warning message................. 426
Traction battery air intake vent........................................... 93
Traction Control (TRAC) ......... 295
T
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

527Alphabetical index
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
Warning buzzersBrake system ....... ................. 418
Electric power steering system ......... ....................... 419
Intuitive parking assist .......... 269
Light reminder ....................... 204
Open door ............................. 420
Open trunk ............................ 420
Parking brake........................ 200
Parking Support Brake function
(for static objects) .............. 419
Seat belt reminder ................ 421
Warning lights
ABS....................................... 419
Brake Override System......... 421
Brake system ....... ................. 418
Charging system ................... 418
Drive-Start Control ................ 421
Electric power steering system ......... ....................... 419
High coolant temperature warning light ....................... 418
Hydrogen leak....................... 418
Low fuel level ........................ 420
Master warning light.............. 421
Parking brake........................ 420
Parking Support Brake function
(for static objects) ............... 419
Pre-collision syst em .............. 420
Seat belt reminder light ......... 421
Slip indicator ......................... 420
SRS ...................................... 419
Tire pressure......................... 421 Warning messages.................. 426
Washer ..................................... 210
Checking............................... 373
Preparing and checking before winter ...................... 301
Switch ................................... 210
Washing and waxing ............... 352
Water release ........................... 187
Weight ...................................... 466 Cargo capacity...................... 183
Load limits ............................ 183
Vehicle capacity weight ........ 466
Wheels ...................................... 396 Replacing.............................. 396
Size....................................... 471
Window glasses ...................... 167
Window lock switch ................ 167
Windows................................... 167 Power windows..................... 167
Rear window defogger.......... 309
Windshield wipers ................... 210
Winter driving tips ................... 301
Wireless remote control ......... 128 Battery-Saving Function ....... 145
Locking/Unlocking ................ 132
Replacing the battery............ 400
WMA disc
*
W
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

528
MIRAI_OM_USA_OM62054U(18MY)_O
M62048U(19MY)
HYDROGEN STATION INFORMATION
Auxiliary catch leverTrunk openerFuel door
P. 366 P. 138P. 215
Hood lock release
leverFuel door openerTire inflation pressure
P. 366 P. 215P. 471
Hydrogen tanks’ fuel
capacity (Reference)32.3 gal. (122.4 L, 26.9 Imp.gal.)
(Approximately 11.0 lb. [5 kg]
*)
*: This is the maximum possible fill amount. The
actual fuel amount achieved at hydrogen sta-
tions may be lower due to station capacity or
station settings.
Fuel type Compressed hydrogen gas P. 213, 468
Cold tire inflation
pressure P. 4 7 1