Toyota Mirai (2023 year). Manual in english

502

9-1. Specifications

Tire size (



P.504)

DOT and Tire Identification Number (TIN) (



P.503)

Location of treadwear indicators (



P.416)

Tire ply composition and materials

Plies are layers of rubber-coated parallel cords. Cords are the strands
which form the plies in a tire.

Radial tires or bias-ply tires

A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is a
bias-ply tire.

TUBELESS or TUBE TYPE

A tubeless tire does not have a tube and air is directly put into the tire. A
tube type tire has a tube inside the tire and the tube maintains the air pres-
sure.

Load limit at maximum cold tire inflation pressure (



P.416)

Maximum cold tire inflation pressure (



P.501)

This means the pressure to which a tire may be inflated.

Uniform tire quality grading

For details, see “Uniform Tire Quality Grading” that follows.

Summer tires or all season tires (



P.416)

Tire information

Typical tire symbols

503

9-1. Specifications

Vehicle

specifications

An all season tire has “M+S” on the sidewall. A tire not marked “M+S” is a
summer tire.



Type A

DOT symbol

Tire Identification Number
(TIN)

Tire manufacturer’s identifi-
cation mark

Tire size code

Manufacturer’s optional tire
type code (3 or 4 letters)

Manufacturing week

Manufacturing year

: The DOT symbol certifies that the

tire conforms to applicable Fed-
eral Motor Vehicle Safety Stan-
dards.



Type B

DOT symbol

Tire Identification Number
(TIN)

Tire manufacturer’s identifi-
cation mark

Manufacturer’s code

Manufacturing week

Manufacturing year

: The DOT symbol certifies that the

tire conforms to applicable Fed-
eral Motor Vehicle Safety Stan-
dards.

Typical DOT and Tire
Identification Number
(TIN)

504

9-1. Specifications

■

Typical tire size information

The illustration indicates typical
tire size.

Section width (millimeters)

Aspect ratio (tire height to
section width)

Speed category (alphabet
with one letter)

Tire construction code (R =
Radial, D = Diagonal)

Wheel diameter (inches)

Load index (2 digits or 3 dig-
its)

Speed symbol (alphabet with
one letter)

■

Tire dimensions

Section width

Tire height

Wheel diameter

Bead

Sidewall

Shoulder

Tread

Belt

Inner liner

Reinforcing rubber

Carcass

Rim lines

Bead wires

Chafer

This information has been pre-
pared in accordance with regu-
lations issued by the National
Highway Traffic Safety Adminis-

Tire size

Tire section names

Uniform Tire Quality
Grading

505

9-1. Specifications

Vehicle

specifications

tration of the U.S. Department of
Transportation.
It provides the purchasers
and/or prospective purchasers
of Toyota vehicles with informa-
tion on uniform tire quality grad-
ing.

Your Toyota dealer will help answer
any questions you may have as you
read this information.

■

DOT quality grades

All passenger vehicle tires must
conform to Federal Safety
Requirements in addition to
these grades. Quality grades
can be found where applicable
on the tire sidewall between
tread shoulder and maximum
section width.

For example: Treadwear 200 Trac-
tion AA Temperature A

■

Treadwear

The treadwear grade is a com-
parative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test
course.

For example, a tire graded 150
would wear one and a half (1 - 1/2)
times as well on the government
course as a tire graded 100.
The relative performance of tires
depends upon the actual conditions
of their use. Performance may differ
significantly from the norm due to
variations in driving habits, service
practices and differences in road
characteristics and climate.

■

Traction AA, A, B, C

The traction grades, from high-
est to lowest, are AA, A, B and
C, and they represent the tire’s
ability to stop on wet pavement
as measured under controlled
conditions on specified govern-
ment test surfaces of asphalt
and concrete.

A tire marked C may have poor
traction performance.
Warning: The traction grade
assigned to this tire is based on
braking (straight ahead) traction
tests and does not include corner-
ing (turning) traction.

■

Temperature A, B, C

The temperature grades are A
(the highest), B, and C, repre-
senting the tire’s resistance to
the generation of heat and its
ability to dissipate heat when
tested under controlled condi-
tions on a specified indoor labo-
ratory test wheel.

Sustained high temperature can
cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to
sudden tire failure.
Grade C corresponds to a level of
performance which all passenger
car tires must meet under the Fed-
eral Motor Vehicle Safety Standard
No. 109.
Grades B and A represent higher
levels of performance on the labo-
ratory test wheel than the minimum
required by law.

506

9-1. Specifications

Warning: The temperature grades
of a tire assume that it is properly
inflated and not overloaded.
Excessive speed, underinflation, or

excessive loading, either sepa-
rately or in combination, can cause
heat buildup and possible tire fail-
ure.

Glossary of tire terminology

Tire related term

Meaning

Cold tire inflation pressure

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 pressure

The maximum cold inflated pressure to
which a tire may be inflated, shown on the
sidewall of the tire

Recommended inflation pres-
sure

Cold tire inflation pressure recommended
by a manufacturer

Accessory weight

The combined weight (in excess of those
standard items which may be replaced) of
transmission, power steering, power
brakes, power windows, power seats,
radio and heater, to the extent that these
items are available as factory-installed
equipment (whether installed or not)

Curb weight

The weight of a motor vehicle with stan-
dard equipment, including the maximum
capacity of fuel, oil and coolant, and if so
equipped, air conditioning and additional
weight optional engine

Maximum loaded vehicle
weight

The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight

Normal occupant weight

150 lb. (68 kg) times the number of occu-
pants specified in the second column of
Table 1

that follows

507

9-1. Specifications

Vehicle

specifications

Occupant distribution

Distribution of occupants in a vehicle as
specified in the third column of Table 1

below

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 of the bead seat

Rim size designation

Rim diameter and width

Rim type designation

The industry manufacturer’s designation
for a rim by style or code

Rim width

Nominal 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 individual 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 individual 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 side

The 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

Tire related term

Meaning

508

9-1. Specifications

Bead separation

A breakdown of the bond between compo-
nents in the bead

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

Carcass

The tire structure, except tread and side-
wall rubber which, when inflated, bears the
load

Chunking

The breaking away of pieces of the tread
or sidewall

Cord

The strands forming the plies in the tire

Cord separation

The parting of cords from adjacent rubber
compounds

Cracking

Any parting within the tread, sidewall, or
innerliner of the tire extending to cord
material

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 cav-
ity of the tire

Extra load tire

A tire designed to operate at higher loads
and at higher inflation pressures than the
corresponding standard tire

Groove

The 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 separation

The parting of the innerliner from cord
material in the carcass

Tire related term

Meaning

509

9-1. Specifications

Vehicle

specifications

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
asymmetrical tire that has a particular side
that must always face outward when
mounted on a vehicle

Light truck (LT) tire

A tire designated by its manufacturer as
primarily intended for use on lightweight
trucks or multipurpose passenger vehicles

Load rating

The maximum load that a tire is rated to
carry for a given inflation pressure

Maximum load rating

The load rating for a tire at the maximum
permissible inflation pressure for that tire

Maximum permissible inflation
pressure

The maximum cold inflation pressure to
which a tire may be inflated

Measuring rim

The rim on which a tire is fitted for physical
dimension requirements

Open splice

Any parting at any junction of tread, side-
wall, or innerliner that extends to cord
material

Outer diameter

The overall diameter of an inflated new tire

Overall width

The linear distance between the exteriors
of the sidewalls of an inflated tire, including
elevations due to labeling, decorations, or
protective 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.

Ply

A layer of rubber-coated parallel cords

Ply separation

A parting of rubber compound between
adjacent plies

Tire related term

Meaning

510

9-1. Specifications

Pneumatic tire

A mechanical device made of rubber,
chemicals, fabric and steel or other materi-
als, that, when mounted on an automotive
wheel, provides the traction and contains
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 substan-
tially 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
corresponding standard tire

Section width

The linear distance between the exteriors
of the sidewalls of an inflated tire, exclud-
ing elevations due to labeling, decoration,
or protective bands

Sidewall

That portion of a tire between the tread
and bead

Sidewall separation

The parting of the rubber compound from
the cord material in the sidewall

Snow tire

A tire that attains a traction index equal to
or greater than 110, compared to the
ASTM E-1136 Standard Reference Test
Tire, when using the snow traction test as
described in ASTM F-1805-00, Standard
Test Method for Single Wheel Driving Trac-
tion in a Straight Line on Snow-and Ice-
Covered Surfaces, and which is marked

with an Alpine Symbol (

) on at least

one sidewall

Test rim

The rim on which a tire is fitted for testing,
and may be any rim listed as appropriate
for use with that tire

Tread

That portion of a tire that comes into con-
tact with the road

Tire related term

Meaning

511

9-1. Specifications

Vehicle

specifications

: Table 1 -Occupant loading and distribution for vehicle normal load for var-

ious designated seating capacities

Tread rib

A tread section running circumferentially
around a tire

Tread separation

Pulling away of the tread from the tire car-
cass

Treadwear indicators (TWI)

The projections within the principal
grooves designed to give a visual indica-
tion of the degrees of wear of the tread

Wheel-holding fixture

The fixture used to hold the wheel and tire
assembly securely during testing

Tire related term

Meaning

Designated seating

capacity, Number of

occupants

Vehicle normal load,

Number of occupants

Occupant distribution in

a normally loaded vehi-

cle

2 through 4

2 in front

5 through 10

2 in front, 1 in second

seat

11 through 15

2 in front, 1 in second

seat, 1 in third seat, 1 in

fourth seat

16 through 20

2 in front, 2 in second

seat, 2 in third seat, 1 in

fourth seat

512

9-2. Customization

9-2.Customization

■

Changing by using the
meter control switches

Press

to select

Operate the meter control
switches to select the desired
item to be customized.

According to the display,
select the desired setting and
then press

To go back to the previous screen
or exit the customize mode, press

■

Changing by using the mul-
timedia system

Select

on the main menu

screen.

Select “Vehicle customize”.

Select the item to change the
settings of from the list.

Various setting can be changed.

Refer to the list of settings that can

be changed for details.

Customizable features

Your vehicle includes a vari-
ety of electronic features
that can be personalized to
your preferences. The set-
tings of these features can
be changed by using the
multi-information display,
the multimedia system or at
your Toyota dealer.

Vehicles with Toyota Team-
mate Advanced Drive, refer to
“Toyota Teammate Advanced
Drive OWNER’S MANUAL”.

Customizing vehicle fea-
tures

NOTICE

■

During customization

To prevent 12-volt battery dis-

charge, ensure that the fuel cell

system is operating while custom-

izing features.

513

9-2. Customization

Vehicle

specifications

Some function settings are changed simultaneously with other func-
tions being customized. Contact your Toyota dealer for further
details.

Settings that can be changed using the multimedia system

Settings that can be changed using the multi-information display

Settings that can be changed by your Toyota dealer

Definition of symbols: O = Available, — = Not available

■

Seat belts (



P.29)

: Vehicles with Active Assist for seat belts

■

Alarm (



P.71)

: The default setting varies according to country.

Customizable features

Function

Default setting

Customized

setting

Retraction of front seat belts
when vehicle speed reaches
approximately 12 mph (20
km/)

Off

— — O

Retraction of front seat belt
when corresponding front
door is opened or seat belt is
released

Off

— — O

Function

Default setting

Customized

setting

Deactivates the alarm when
the doors or trunk are
unlocked using the mechani-
cal key

Off

— — O

514

9-2. Customization

■

Gauges, meters and multi-information display (



P.99, 105)

:For details about each function:



P.111

:The default setting varies according to country.

Function

Default setting

Customized

setting

Language

English

French

O —

Spanish

Units

miles (MPGe) km (kg/100km) — O —

Eco Accelerator Guidance

Off

— O —

Fuel economy display

Total average

(Average fuel

consumption

[after reset])

Trip average

(Average fuel

consumption

[after start])

— O —

Tank average

(Average fuel

consumption
[after refuel])

Audio system linked display

Off

— O —

Energy monitor

Off

— O —

Drive information type

Trip (after

start)

Total (after

reset)

— O —

Drive information items (First
item)

Distance

Average vehi-

cle speed

— O —

Elapsed time

Drive information items (Sec-
ond item)

Elapsed time

Average vehi-

cle speed

— O —

Distance

Current trip result display

Drive informa-

tion

Eco score

— O —

Pop-up display

Off

— O —

Suggestion function

On (when the

vehicle is

stopped)

O — O

Off

515

9-2. Customization

Vehicle

specifications

■

Head-up Display

(



P.114)

: If equipped

■

Door lock (



P.127, 133, 482)

Function

Default setting

Customized

setting

Fuel cell System Indicator

Off

— O —

Route guidance to destina-
tion/street name

Off

— O —

Driving support system dis-
play

Off

— O —

Compass

Off

— O —

Audio system operation sta-
tus

Off

— O —

Function

Default setting

Customized

setting

Unlocking using a mechani-
cal key

Driver’s door

unlocked in

one step, all

doors

unlocked in

two step

All doors

unlocked in

one step

— — O

Automatic door locking func-
tion

Shift position

linked door

locking opera-

tion

Off

O — O

Speed linked

door locking

operation

Automatic door unlocking
function

Shift position

linked door

unlocking
operation

Off

O — O

Driver’s door

linked door

unlocking
operation

Locking/unlocking of the
trunk when all doors are
locked/unlocked

Off

— — O

516

9-2. Customization

■

Smart key system and wireless remote control (



P.127, 133,

136)

■

Smart key system (



P.127, 133, 136)

■

Wireless remote control (



P.125, 127, 134)

Function

Default setting

Customized

setting

Operating signal (Buzzers)

Off

O — O

1 to 7

Operation signal (Emergency
flashers)

Off

O — O

Time elapsed before auto-
matic door lock function is
activated if door is not
opened after being unlocked

60 seconds

Off

O — O

30 seconds

120 seconds

Open door warning buzzer

Off

— — O

Function

Default setting

Customized

setting

Smart key system

Off

— — O

Smart door unlocking

Driver’s door

All the doors

O — O

Time elapsed before unlock-
ing all the door when gripping
and holding the driver’s door
handle

2 seconds

Off

— — O

1.5 seconds

2.5 seconds

Number of consecutive door
lock operations

2 times

As many as

desired

— — O

Function

Default setting

Customized

setting

Wireless remote control

Off

— — O

Unlocking operation

Driver’s door

unlocked in

one step, all

doors

unlocked in

two step

All doors

unlocked in

one step

O — O

517

9-2. Customization

Vehicle

specifications

■

Rear seat reminder (



P.129)

■

Driving position memory

(



P.142)

: If equipped

Trunk unlocking operation

Press and hold

(short)

One short

press

— — O

Push twice

Press and hold

(long)

Off

Theft deterrent panic mode

Off

— — O

Locking operation when door
opened

Off

O — O

Function

Default setting

Customized

setting

Indication to prevent mis-
placement in the rear seat

Off

— O —

Function

Default setting

Customized

setting

Selecting doors linked to the
memory recall function

Driver’s door

All doors

— — O

Driver’s seat slide movement
when exiting the vehicle

Full

Off

O — O

Partial

Steering wheel movement

Tilt only

Off

O — O

Telescopic

only

Tilt and tele-

scopic

Function

Default setting

Customized

setting

Toyota Mirai (2023 year). Manual in english - page 31