tire size TOYOTA MIRAI 2023 Owners Manual

15Pictorial index
Owners Manual_USA_M62064_en
Windshield wipers.............................................. ................ P.204
Precautions for winter seas on.............................................. P.327
To prevent freezing (windshield wiper de-icer)
*............ P.337, 347
Precautions for car wash (vehicles with rain-sensing windshield wip-
ers) ....................................................................................... P.394
Fuel door ...................................................... ....................... P.210
Refueling method ............................................... .................. P.210
Fuel type/hydrogen t anks’ fuel capacity ........................ ....... P.497
Tires.......................................................... ........................... P.416
Tire size/inflation pressure ................................... ........ P.416, 501
Winter tires/tire chains ....................................... .................. P.327
Checking/rotation/tire pressur e warning system ..................P.416
Coping with flat tires......................................... .................... P.467
Hood ........................................................... ......................... P.406
Opening ............................................................................... P.406
Fuel cell unit compartment cover ............................... .......... P.409
Coping with overheating ...................................................... P.490
Warning messages ............................................... ............... P.464
Headlights/daytime running lights
*.................................. P.198
Parking lights/dayt ime running lights
*............................. P.198
Turn signal lights ............................................. .................. P.190
Tail lights.................................................... ......................... P.198
Tail lights.................................................... ......................... P.198
Stop lights
License plate lights........................................... ................. P.198
Back-up lights
Changing the shift position to R ............................... ............ P.185
Light bulbs of the exterior lights for driving
(Replacing method: P.443)

451-1. For safe use
Owners Manual_USA_M62064_en
1
For safety and security
WARNING
●If the Pop Up Hood has oper-
ated, have it replaced by your
Toyota dealer. If the Pop Up
Hood has operated, stop the
vehicle in a safe place and con-
tact your Toyota dealer.
●Do not touch the lifters immedi-
ately after the Pop Up Hood has
operated, as the lifters may be
hot and burn you.
NOTICE
■Pop Up Hood precautions
●Make sure to close the hood
before driving, as the system
may not operate properly if the
hood is not fully closed.
●Make sure that all 4 tires are of
the specified size and inflated to
the specified tire pressure. If
tires of a different size are used,
the system may not operate
properly.
●If something has hit the area
around the front bumper, the
sensors may be damaged even
if the Pop Up Hood has not
operated. Have the vehicle
inspected by your Toyota
dealer.
●Do not remove or repair the
parts or wiring of the Pop Up
Hood, as doing so may cause
accidental operation or prevent
the system from operating prop-
erly. If repair or replacement is
necessary, contact your Toyota
dealer.
●Do not remove such compo-
nents as the front bumper, hood
or suspension, or replace them
with non-genuine parts, as
doing so may prevent the sys-
tem from operating properly.
●Do not install anything to the
front bumper or hood, as doing
so may prevent the sensors
from detecting an impact cor-
rectly and prevent the system
from operating properly.
●Do not close the hood with force
or apply load to the lifters, as
doing so may damage the lifters
and prevent the system from
operating properly.
●Do not modify the suspension,
as changes made to the vehicle
height may prevent the system
from operating properly.

2335-5. Using the driving support systems
Owners Manual_USA_M62064_en
5
Driving
WARNING
●The vehicle is driven in an area
without white (yellow) lines,
such as in front of a tollgate or
checkpoint, or at an intersec-
tion, etc.
●The white (yellow) lines are
cracked, “Botts’ dots”, “Raised
pavement marker” or stones are
present.
●The white (yello w) lines cannot
be seen or are difficult to see
due to sand, etc.
●The vehicle is driven on a road
surface that is wet due to rain,
puddles, etc.
●The traffic li nes are yellow
(which may be more difficult to
recognize than lines that are
white).
●The white (yellow) lines cross
over a curb, etc.
●The vehicle is driven on a bright
surface, such as concrete.
●If the edge of the road is not
clear or straight.
●The vehicle is driven on a sur-
face that is bright due to
reflected light, etc.
●The vehicle is driven in an area
where the brightness changes
suddenly, such as at the
entrances and exits of tunnels,
etc.
●Light from the h eadlights of an
oncoming vehicle, the sun, etc.,
enters the camera.
●The vehicle is driven on a slope.
●The vehicle is driven on a road
which tilts left or right, or a wind-
ing road.
●The vehicle is driven on an
unpaved or rough road.
●The traffic lane is excessively
narrow or wide.
●The vehicle is extremely tilted
due to carrying heavy luggage
or having improper tire pres-
sure.
●The distance to the preceding
vehicle is extremely short.
●The vehicle is moving up and
down a large amount due to
road conditions during driving
(poor roads or road seams).
●When driving in a tunnel or at
night with the headlights off or
when a headlight is dim due to
its lens being dir ty or it being
misaligned.
●The vehicle is struck by a cross-
wind.
●The vehicle is affected by wind
from a vehicle driven in a
nearby lane.
●The vehicle has just changed
lanes or crossed an intersec-
tion.
●Tires which differ by structure,
manufacturer, brand or tread
pattern are used.
●When tires of a size other than
specified are installed.
●Snow tires, etc., are equipped.
●The vehicle is b eing driven at
extremely high speeds.

2765-5. Using the driving support systems
Owners Manual_USA_M62064_en
●When backing out of a sharp
angle parking spot
●Immediately after the RCTA func-
tion is turned on
●Immediately after the fuel cell sys-
tem is started with the RCTA func-
tion on
●When the sensors cannot detect a
vehicle due to obstructions
●When towing a trailer
●When there is a significant differ-
ence in height between your vehi-
cle and the vehicle that enters the
detection area
●When a sensor or the area around
a sensor is extremely hot or cold
●If the suspension has been modi-
fied or tires of a size other than
specified are installed
●If the front of the vehicle is raised
or lowered due to the carried load
●When turning while backing up
●When a vehicle turns into the
detection area
■Situations in which the system
may operate even if there is no
possibility of a collision
Instances of the RCTA function
unnecessary detec ting a vehicle
and/or object may increase in the
following situations:
●When the parking space faces a
street and vehicles are being
driven on the street
●When the distance between your
vehicle and metal objects, such as
a guardrail, wall, sign, or parked
vehicle, which may reflect electri-
cal waves toward the rear of the
vehicle, is short
●When equipment that may
obstruct a sensor is installed, such
as a towing eyelet, bumper pro-
tector (an additional trim strip,
etc.), bicycle car rier, or snow plow

2775-5. Using the driving support systems
Owners Manual_USA_M62064_en
5
Driving
●When a vehicle passes by the
side of your vehicle
●When a detected vehicle turns
while approaching the vehicle
●When there are spinning objects
near your vehicle such as the fan
of an air conditioning unit
●When water is splashed or
sprayed toward t he rear bumper,
such as from a sprinkler
●Moving objects (flags, exhaust
fumes, large rain droplets or
snowflakes, rain water on the road
surface, etc.)
●When the distance between your
vehicle and a guardrail, wall, etc.,
that enters the detection area is
short
●Gratings and gutters
●When a sensor or the area around
a sensor is extremely hot or cold
●If the suspension has been modi-
fied or tires of a size other than
specified are installed
●If the front of the vehicle is raised
or lowered due to the carried load
*: If equipped
RCD (Rear Camera
Detection)*
When the vehicle is backing
up, the rear camera detec-
tion function can detect
pedestrians in the detec-
tion area behind the vehicle.
If a pedestrian is detected, a
buzzer will sound and an
icon will be displayed on
the multimedia display to
inform the driver of the
pedestrian.
WARNING
■Cautions regarding the use of
the system
The recognition and control capa-
bilities for this system are limited.
The driver should always drive
safely by always being responsi-
ble without over relying on the
system and have a understanding
of the surrounding situations.
■To ensure the system can
operate properly
Observe the following, otherwise
there is the danger that could lead
to an accident.
●Always clean the camera with-
out damaging it.
●Do not install market electronic
parts (such as Illuminated
license plate, fog lamps, etc.) in
the camera vicinity.
●Do not subject the camera vicin-
ity to strong impacts. If the vicin-
ity is subjected to a strong
impact, have the vehicle
inspected at a Toyota dealer.

2805-5. Using the driving support systems
Owners Manual_USA_M62064_enwhen the R shift position is
selected, the rear camera lens
may be dirty. Clean the rear cam-
era lens.
■Situations in which the system
may not operate properly
●Some pedestrians, such as the
following, may not be detected by
the rear camera detection func-
tion, preventing the function from
operating properly:
• Pedestrians who are bending for-
ward or squatting
• Pedestrians who are lying down
• Pedestrians who are running
• Pedestrians who suddenly enter the detection area
• People riding a bicycle, skate-
board, or other light vehicle
• Pedestrians wearing oversized clothing such as a rain coat, long
skirt, etc., making their silhouette
obscure
• Pedestrians whose body is par-
tially hidden by an object, such as
a cart or umbrella
• Pedestrians which are obscured
by darkness, such as at night
●In some situations, such as the
following, pedestrians may not be
detected by the rear camera
detection function, preventing the
function from operating properly:
• When backing up in inclement weather (rain, snow, fog, etc.)
• When the rear camera is obscured (dirt, snow, ice, etc., are
attached) or scratched
• When a very bright light, such as the sun, or the headlights of
another vehicle, shines directly
into the rear camera
• When backing up in a place where the surrounding brightness
changes suddenly, such as at the
entrance or exit of a garage or
underground parking lot
• When backing up i n a dim envi-
ronment such as during dusk or in
an underground parking lot
• When the camera position and
direction are deviated
• When a towing hook is attached • When water droplets are flowing
on the camera lens
• When the vehicle height is
extremely changed (nose up,
nose down).
• When tire chains or an emergency
tire puncture repair kit is used
• If the suspension has been modi- fied or tires of a size other than
specified are installed
• If an electronic component, such as a backlit license plate or rear
fog light, is insta lled near the rear
camera
• If a bumper protector, such as an
additional trim strip, is installed to
the rear bumper
■Situations in which the system
may operate unexpectedly
●Even though there are no pedes-
trians in the detection area, some
objects, such as the following,
may be detected, possibly caus-
ing the rear cam era detection
function to operate.
• Three dimensional objects, such as a pole, traffic cone, fence, or
parked vehicle
• Moving objects, such as a car or motorcycle
• Objects moving to ward your vehi-
cle when backing up, such as
flags or puddles (or airborne mat-
ter, such as smoke, steam, rain, or
snow)
• Cobblestone or gravel roads, tram
rails, road repai rs, white lines,
pedestrian crossings or fallen
leaves on the road
• Metal covers (gratings), such as those used for drainage ditches
• Objects reflected in a puddle or on
a wet road surface
• Shadows on the road
●In some situations, such as the
following, the rea r camera detec-
tion function may operate even
though there are no pedestrians in
the detection area.
• When backing up toward the road- side or a bump on the road
• When backing up toward an incline/decline

2825-5. Using the driving support systems
Owners Manual_USA_M62064_en
■Parking Support Brake
function (moving vehicles
rear of the vehicle)
 P.290
■Parking Support Brake
function (pedestrians rear
of the vehicle)
 P.291
*: If equipped
WARNING
■Cautions regarding the use of
the system
Do not overly rely on the system,
as doing so may lead to an acci-
dent.
Always drive while checking the
safety of the surroundings of the
vehicle.
Depending on the vehicle and
road conditions, weather, etc., the
system may not operate.
The detection capa bilities of sen-
sors and radars are limited.
Always drive while checking the
safety of the surroundings of the
vehicle.
●The driver is solely responsible
for safe driving. Always drive
carefully, taking care to observe
your surroundings. The Parking
Support Brake system is
designed to provide support to
lessen the severity of collisions.
However, it may not operate in
some situations.
●The Parking Support Brake sys-
tem is not designed to stop the
vehicle completely. Additionally,
even if the system has stopped
the vehicle, it is necessary to
depress the brake pedal imme-
diately as brake control will be
canceled after approximately 2
seconds.
●It is extremely dangerous to
check the system operations by
intentionally driving the vehicle
into the direction of a wall, etc.
Never attempt such actions.
■When to disable the Parking
Support Brake
In the following situations, disable
the Parking Suppor t Brake as the
system may opera te even though
there is no possibility of a colli-
sion.
●When inspecting the vehicle
using a chassis roller, chassis
dynamo or free roller
●When loading the vehicle onto a
boat, truck or other transport
vessel
●If the suspension has been
modified or tires of a size other
than specified are installed
●If the front of the vehicle is
raised or lowered due to the
carried load
●When equipment that may
obstruct a sensor is installed,
such as a towing eyelet, bumper
protector (an additional trim
strip, etc.), bicycle carrier, or
snow plow
●When using automatic car
washing devices
●If the vehicle cannot be driven in
a stable manner, such as when
the vehicle has been in an acci-
dent or is malfunctioning
●When the vehicle is driven in a
sporty manner or off-road
●When the tires are not properly
inflated
●When the tires are very worn

2965-5. Using the driving support systems
Owners Manual_USA_M62064_en
WARNING
●Do not allow anyone to put their
hands outside of a window while
this system is operating.
■To ensure correct operation
of the Advanced Park
Observe the following precau-
tions.
Failing to do so may result in the
vehicle being unable to be driven
safely and possibly cause an acci-
dent.
●Do not use this system in situa-
tions such as the following:
• When in areas other than com- mon parking spaces
• When the surface of the parking space is sand or gravel and is
not clearly defined with parking
space lines
• When the parking space is not level, such as when on a slope
or has differences in height
• Mechanical parking system
• Parking lot with a device which raises to contact the bottom of
the vehicle
• When the road s urface is fro-
zen, slick, or covered with snow
• When it is extremely hot and the asphalt is melting
• When there are objects around the vehicle
• When there is an object between your vehicle and the
target parking spot or within the
target parking spot (within the
displayed blue box)
• When there is a gutter between your vehicle and the target park-
ing space or within the target
parking spot (within the dis-
played blue box)
• When there is a hole or gutter in the exit direction
• When in high pedestrian or vehicle traffic areas
• When the parking space is in a location that is difficult to park in
(too narrow for your vehicle,
etc.)
• When images are unclear due to dirt or snow attached to the
camera lens, light being shined
into the camera or shadows
• When tire chains or a compact spare tire is installed to the vehi-
cle
• When the doors or trunk are not completely closed
• When an arm is h eld outside of
a window
• In inclement weather such as heavy rain or snow
●Make sure to use only standard
sized tires, such as those that
were installed to the vehicle
when it was shipped from the
factory. Otherwise, Advanced
Park may not operate properly.
Also, when the tires have been
replaced, the displayed position
of the lines or box displayed on
the screen may become incor-
rect. When replacing the tires,
contact your Toyota dealer.
●In situations such as the follow-
ing, it may not be possible for
the system to provide assis-
tance to a registered parking
spot:

3265-5. Using the driving support systems
Owners Manual_USA_M62064_en
WARNING
●When Active Cornering Assist
frequently operates, Active Cor-
nering Assist may temporarily
stop operating to ensure proper
operation of the brakes, TRAC
and VSC.
■Hill-start assist control does
not operate effectively when
●Do not overly rely on hill-start
assist control. Hill-start assist
control may not operate effec-
tively on steep inclines and
roads covered with ice.
●Unlike the parking brake, hill-
start assist control is not
intended to hold the vehicle sta-
tionary for an extended period
of time. Do not attempt to use
hill-start assist control to hold
the vehicle on an incline, as
doing so may lead to an acci-
dent.
■When the TRAC/ABS/VSC is
activated
The slip indicator light flashes.
Always drive carefully. Reckless
driving may cause an accident.
Exercise particular care when the
indicator light flashes.
■When the TRAC/VSC systems
are turned off
Be especially careful and drive at
a speed appropriate to the road
conditions. As these are the sys-
tems to help ensure vehicle stabil-
ity and driving force, do not turn
the TRAC/VSC systems off
unless necessary.
■Secondary Collision Brake
Do not rely solely upon the Sec-
ondary Collision Brake. This sys-
tem is designed to help reduce
the possibility of further damage
due to a secondary collision, how-
ever, that effect changes accord-
ing to various conditions. Overly
relying on the system may result
in death or serious injury.
■Replacing tires
Make sure that all tires are of the
specified size, brand, tread pat-
tern and total load capacity. In
addition, make sure that the tires
are inflated to the recommended
tire inflation p ressure level.
The ABS, TRAC and VSC sys-
tems will not functi on correctly if
different tires are installed on the
vehicle.
Contact your Toyota dealer for fur-
ther information when replacing
tires or wheels.
■Handling of tires and the sus-
pension
Using tires with any kind of prob-
lem or modifying the suspension
will affect the driving assist sys-
tems, and may cause a system to
malfunction.

3275-6. Driving tips
Owners Manual_USA_M62064_en
5
Driving
5-6.Driving tips
 Use washer fluid that is
appropriate to the prevailing
outside temperatures.
 Have a service technician
inspect the condition of the
12-volt battery.
 Have the vehicle fitted with
four snow tires or purchase a
set of tire chains for the rear
tires.
Ensure that all tires are the speci-
fied size and brand, and that chains
match the size of the tires.
Winter driving tips
Carry out the necessary
preparations and inspec-
tions before driving the
vehicle in winter. Always
drive the vehicle in a man-
ner appropriate to the pre-
vailing weather conditions.
Preparation for winter
WARNING
■Driving with snow tires
Observe the following precautions
to reduce the risk of accidents.
Failure to do so m ay result in a
loss of vehicle control and cause
death or serious injury.
●Use tires of the specified size.
●Maintain the recommended
level of air pressure.
●Do not drive in excess of 75
mph (120 km/h), regardless of
the type of snow tires being
used.
●Use snow tires on all, not just
some wheels.
■Driving with tire chains
Observe the following precautions
to reduce the risk of accidents.
Failure to do so may result in the
vehicle being unable to be driven
safely, and may cause death or
serious injury.
●Do not drive in excess of the
speed limit specifi ed for the tire
chains being used, or 30 mph
(50 km/h), whichever is lower.
●Avoid driving on bumpy road
surfaces or over potholes.
●Avoid sudden acceleration,
abrupt steering, sudden brak-
ing and shifting operations that
cause sudden regenerative
braking.
●Slow down sufficiently before
entering a curve to ensure that
vehicle control is maintained.
●Do not use LTA (Lane Tracing
Assist) system.
NOTICE
■Repairing or replacing snow
tires
Request repairs or replacement of
snow tires from Toyota dealers or
legitimate tire retailers.
This is because the removal and
attachment of snow tires affects
the operation of the tire pressure
warning valves and transmitters.