steering TOYOTA MIRAI 2023 Manual Online

4618-2. Steps to take in an emergency
Owners Manual_USA_M62064_en
8
When trouble arises
■Rear passengers’ seat belt reminder lights (warning buzzer)*
*: Rear passengers’ seat belt warning buzzer:
The rear passengers’ seat belt war ning buzzer sounds to alert the rear
passenger that his or her seat belt is not fastened. If the sea t belt is
unfastened, the buzzer sounds int ermittently for a certain period of time,
after the seat belt is fastened and unfastened and the vehicle reaches a
certain speed.
■Warning buzzer
In some cases, the buzzer may not
be heard due to being in a noisy
location or audio sound.
■Front passenger detection sen-
sor, seat belt reminder and
warning buzzer
●If luggage is placed on the front
passenger seat, the front passen-
ger detection sensor may cause
the warning light to flash and the
warning buzzer to sound even if a
passenger is not sitting in the
seat.
●If a cushion is placed on the seat,
the sensor may n ot detect a pas-
senger, and the warning light may
not operate properly.
■SRS warning light
This warning light system monitors
the airbag sensor assembly, front
impact sensors, side impact sensors
(front door), side impact sensors
(front), side impact sensors (rear),
driver’s seat position sensor,
driver’s seat belt buckle switch, front
passenger occupant classification
system (ECU and sensors), “AIR-
BAG ON” indicator light, “AIRBAG
OFF” indicator light, front passen-
ger’s seat belt buc kle switch, seat
belt pretensioners, airbags, inter-
connecting wiring and power
sources. ( P. 3 4 )
■Electric power steering system
warning light (warning buzzer)
When the 12-volt battery charge
becomes insufficient or the voltage
temporarily drops, the electric power
steering system warning light may
come on and the warning buzzer
may sound.
■When the tire pressure warning
light comes on
Inspect the tires to check if a tire is
punctured.
If a tire is punctured: P. 4 6 7
If none of the tires are punctured:
Turn the power switch off then turn it
to ON. Check if th e tire pressure
warning light com es on or blinks.
If the tire pressure warning light
blinks for approximately 1 minute
then stays on
There may be a malfunction in the
tire pressure warning system. Have
the vehicle inspected by your Toyota
dealer immediately.
If the tire pressur e warning light
comes on
1 After the temperature of the tires
has lowered sufficiently, check
the inflation pressure of each tire
and adjust them to the specified
level.
2 If the warning light does not turn
off even after several minutes
have elapsed, check that the
inflation pressure of each tire is
Warning lightDetails/Actions
Warns the rear passengers to fasten their seat belts
 Fasten the seat belt.

4628-2. Steps to take in an emergency
Owners Manual_USA_M62064_enat the specified level and perform
initialization. (
P.420)
■The tire pressure warning light
may come on due to natural
causes
The tire pressure warning light may
come on due to natural causes such
as natural air leaks and tire inflation
pressure changes caused by tem-
perature. In this case, adjusting the
tire inflation pressure will turn off the
warning light (after a few minutes).
■Conditions that the tire pres-
sure warning system may not
function properly
 P. 4 1 9
WARNING
■If both the ABS and the brake
system warning lights remain
on
Stop your vehicle in a safe place
immediately and contact your Toy-
ota dealer.
The vehicle will become
extremely unstable during brak-
ing, and the ABS system may fail,
which could cause an accident
resulting in death or serious injury.
■When the electric power
steering system warning light
comes on
When the light comes on yellow,
the assist to the power steering is
restricted. When the light comes
on red, the assist to the power
steering is lost and handling oper-
ations of the steering wheel
become extremely heavy.
When steering wheel operations
are heavier than usual, grip the
steering wheel firmly and operate
it using more force than usual.
■If the tire pr essure warning
light comes on
Be sure to observe the following
precautions.
Failure to do so could cause a
loss of vehicle control and result
in death or serious injury.
●Check and adjust the tire infla-
tion pressure immediately.
●If the tire pressure warning light
comes on even after tire infla-
tion pressure adjustment, it is
probable that you have a flat
tire. Have the flat tire replaced
by the nearest Toyota dealer.
●Avoid abrupt maneuvering and
braking.
If the vehicle tires deteriorate,
you could lose control of the
steering wheel or the brakes.
■If a blowout or sudden air
leakage should occur
The tire pressure warning system
may not activate immediately.
■Maintenance of the tires
Each tire, includi ng the spare (if
provided), should be checked
monthly when cold and inflated to
the inflation pressure recom-
mended by the vehicle manufac-
turer on the vehicle placard or tire
inflation pressure label (tire and
load information label). (If your
vehicle has tires of a different size
than the size indicated on the
vehicle placard or tire inflation
pressure label [tire and load infor-
mation label], you should deter-
mine the proper tire inflation
pressure for those tires.)

4648-2. Steps to take in an emergency
Owners Manual_USA_M62064_en
■Warning messages
The warning messages explained
below may differ from the actual
messages according to operation
conditions and vehicle specifica-
tions.
■Warning buzzer
A buzzer may sound when a mes-
sage is displayed.
In some cases, the buzzer may not
be heard due to being in a noisy
location or audio sound.
■If “FCV System Stopped Steer-
ing Power Low” is displayed
This message is displayed if the fuel
cell system is stopped while driving.
When steering wheel operations are
heavier than usual, grip the steering
wheel firmly and operate it using
more force than usual.
■If “FCV System High Temp. FCV
Power Reduced” or “FCV
Power Reduced Due to Exces-
sive Acceleration” is displayed
1 Lower the speed while check the
safety, and run the vehicle like
this for several minutes.
2 If the message goes off, the vehi-
cle can be driven as is, since it
temporarily overheated.
This message may be displayed
when driving under severe operat-
ing conditions. (For example, when
driving up a l ong steep hill.)
■If “FCV Power Significantly
Reduced” is displayed
The output power of the fuel cell
system is greatly restrained. If it is
displayed frequently, contact your
Toyota dealer.
■If “Stop Vehicle in a Safe Place
Push P Switch” is displayed
There may be a malfunction in the
fuel cell system or the shift position
may be shifted to N for a long time.
Immediately stop the vehicle and
contact your Toyota dealer.
■If “Shift is in N Release Acceler-
ator Before Shifting” is dis-
played
The accelerator pedal has been
depressed when the shift position is
in N.
Release the accelerator pedal and
shift the shift position to D or R.
■If “Press brake when vehicle is
stopped FCV system may over-
heat” is displayed
The message may be displayed
when the accelerator pedal is
If a war ning message
is displayed
The multi-information dis-
play shows warnings for
system malfunctions and
incorrectly performed oper-
ations, and messages that
indicate a need for mainte-
nance. When a message is
displayed, perform the
appropriate corrective
action for the message.
If a warning message is dis-
played again after the
appropriate actions have
been performed, contact
your Toyota dealer.
Additionally, if a warning
light comes on or flashes at
the same time that a warn-
ing message is displayed,
take the appropriate correc-
tive action for the warning
light. ( P.454)

4788-2. Steps to take in an emergency
Owners Manual_USA_M62064_en
■When fixing the flat tire
●Stop your vehicle in a safe and
flat area.
●Do not touch the wheels or the
area around the brakes immedi-
ately after the vehicle has been
driven.
After the vehicle has been
driven, the wheels and the area
around the brakes may be
extremely hot. Touching these
areas with hands, feet or other
body parts may result in burns.
●Connect the valve and hose
securely with the tire installed
on the vehicle. If the hose is not
properly connected to the valve,
air leakage may occur as seal-
ant may be sprayed out.
●If the hose comes off the valve
while inflating the tire, there is a
risk that the hose will move
abruptly due to air pressure.
●After inflation of the tire has
completed, the sealant may
splatter when the hose is dis-
connected or some air is let out
of the tire.
●Follow the operation procedure
to repair the tire. If the proce-
dures not followed, the sealant
may spray out.
●Keep back from the tire while it
is being repaired, as there is a
chance of it bursting while the
repair operation is being per-
formed. If you notice any cracks
or deformation of the tire, turn
off the compressor switch and
stop the repair operation imme-
diately.
●The repair kit may overheat if
operated for a long period of
time. Do not operate the repair
kit continuously for more than
40 minutes.
●Parts of the re pair kit become
hot during operation. Be careful
handling the repair kit during
and after operation. Do not
touch the metal part connecting
the bottle and the compressor. It
will be extremely hot.
●Do not attach the vehicle speed
warning sticker to an area other
than the one indicated. If the
sticker is attached to an area
where an SRS airbag is located,
such as the pad of the steering
wheel, it may prevent the SRS
airbag from operating properly.
■Driving to spread the liquid
sealant evenly
Observe the following precautions
to reduce the risk of accidents.
Failing to do so may result in a
loss of vehicle control and cause
death or serious injury.
●Drive the vehicle carefully at a
low speed. Be especially careful
when turning and cornering.
●If the vehicle does not drive
straight or you feel a pull
through the steering wheel, stop
the vehicle and check the fol-
lowing.
WARNING

5019-1. Specifications
Owners Manual_USA_M62064_en
9
Vehicle specifications
the brake system warning light is not illuminated when the fuel cell sys-
tem is operating. (If the brake system warning light is illuminated, refer to
P.454.)
*2: Make sure to confirm that the brake warning light (yellow) doe s not illumi-
nate. (If the brake warning light illuminates, refer to P.454.)
19-inch tires
20-inch tires
Steering
Free playLess than 1.2 in. (30 mm)
Tires and wheels
Tire size235/55R19 101V
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front: 33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Rear: 33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Wheel size19  8J
Wheel nut torque103 ft•lbf (140 N•m, 14.3 kgf•m)
Tire size245/45ZR20 103Y
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front: 33 psi (230 kPa, 2.3 kgf/cm2 or bar)
Rear: 33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Wheel size20  8 1/2J
Wheel nut torque103 ft•lbf (140 N•m, 14.3 kgf•m)

5069-1. Specifications
Owners Manual_USA_M62064_enWarning: 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 termMeaning
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 inf lated pressure to
which a tire may be inflated, shown on the
sidewall of the tire
Recommended inflation pres-
sureCold 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 moto r 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
Ta b l e 1
* that follows

5179-2. Customization
Owners Manual_USA_M62064_en
9
Vehicle specifications
■Rear seat reminder ( P.129)
■Driving position memory* ( P.142)
*: If equipped
Trunk unlocking operationPress and hold
(short)
One short press
——OPush twice
Press and hold (long)
Off
Theft deterrent panic modeOnOff——O
Locking operation when door
openedOnOffO—O
FunctionDefault settingCustomized setting
Indication to prevent mis-
placement in the rear seatOnOff—O—
FunctionDefault settingCustomized setting
Selecting door s linked to the
memory recall functionDriver’s doorAll doors——O
Driver’s seat slide movement
when exiting the vehicleFullOffO—OPartial
Steering wheel movementTilt only
Off
O—O
Telescopic only
Tilt and tele-scopic
FunctionDefault settingCustomized setting

5209-2. Customization
Owners Manual_USA_M62064_en
■LTA (Lane Tracing Assist)* ( P.230)
*: Vehicles with Toyota Teammate Ad vanced Drive, refer to “Toyota Team-
mate Advanced Driv e OWNER’S MANUAL”.
■RSA (Road Sign Assist)*1, 2 ( P.241)
*1: If equipped
*2: Vehicles with Toyota Teammate Advanced Drive, refer to “Toyota Team-
mate Advanced Drive OWNER’S MANUAL”.
■Dynamic radar cruise control with full-speed range* (  P.244)
*: Vehicles with Toyota Teammate Ad vanced Drive, refer to “Toyota Team-
mate Advanced Driv e OWNER’S MANUAL”.
FunctionCustomized setting
Lane centering functionOn/Off—O—
Steering assist functionOn/Off—O—
Alert sensitivityHigh/Standard—O—
Vehicle sway warning func-
tionOn/Off—O—
Vehicle sway warning sensi-
tivityHigh/Standard/Low—O—
FunctionCustomized setting
RSA (Road Sign Assist)On/Off—O—
Excess speed notification
methodDisplay only/Display and
buzzer/No notification—O—
Excess speed notification
level1 mph (2 km/h)/3 mph (5 km/h)/5 mph (10 km/h)—O—
Other notifications method
(No-entry notification)Display only/Display and buzzer/No notification—O—
FunctionCustomized setting
Curve speed reduction func-
tionHigh/Low/Off—O—

5249-2. Customization
Owners Manual_USA_M62064_en
■Heated steering wheel* ( P.351)
*: If equipped
■Illumination ( P.355)
FunctionDefault settingCustomized
setting
Steering wheel heating pref-
erence in automatic modeStandard-2 (low) to 2 (high)O—O
FunctionDefault settingCustomized setting
Time elapsed before the inte-
rior lights turn off15 seconds
Off
O—O7.5 seconds
30 seconds
Operation of the front per-
sonal lights and interior lights
after the powe r switch is
turned off
OnOff——O
Operation of the front per-
sonal lights and interior lights
when the doors are unlocked
OnOff——O
Operation of the front per-
sonal lights and interior lights
when you appro ach the vehi-
cle with the electronic key on
your person
OnOff——O
Footwell lights*OnOff——O
Inside door handle lights*,
cup holder lights, interior
lights, door trim ornament
lights
* and instrument panel
ornament light
*
OnOff——O
Time elapsed before the
outer foot lights
* turn off15 seconds
Off
O—O7.5 seconds
30 seconds

544Alphabetical Index
Owners Manual_USA_M62064_en
Auxiliary boxes ....................... 360
Average fuel economy ........... 107
Average vehicle speed........... 111
B
Back-up lights Replacing light bulbs ............ 443
Battery (12-volt battery) ......... 413 Battery checking................... 413
If the 12-volt battery is dis-charged .............................. 485
Preparing and c hecking before
winter.................................. 327
Warning light ........................ 455
Battery (traction battery) ......... 81
Blind Spot Monitor (BSM) ...... 256 Enabling/disabling the system........................................... 258
Brake Brake hold ............................ 194
Fluid ............................. 412, 500
Parking brake ....................... 191
Warning light ........................ 454
Brake assist ............................ 322
Break-in tips ........ ................... 170
Brightness control Instrument panel light control................................... 100, 104
BSM (Blind Spot Monitor) ...... 256 Enabling/disabling the system........................................... 258
Buzzer Hands off steering wheel warn-ing (LTA) ............................. 239
Vehicle sway warning function (LTA) ................................... 240
C
Camera Front camera ........................214
Rear camera.........................278
Toyota Teammate Advanced Park ....................................297
Care..................................392, 396 Aluminum wheel ornaments .392
Aluminum wheels .................392
Exterior .................................392
Interior ..................................396
Roof film ...............................393
Seat belts .............................396
Traction battery air intake vents...........................................433
Cargo and luggage .................175
Cargo capacity ........................178
Chains......................................329
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 .414, 488
Airbag precautions .................39
Child restraint system .............54
Electronic sunshade .............364
Heated steering wheel and seat heater precautio ns..............351
How your child should wear the seat belt ................................30
Power window lock switch ....164
Power window precautions...163
Rear door child-protectors ....130