TOYOTA MIRAI 2023 Service Manual

411-1. For safe use
Owners Manual_USA_M62064_en
1
For safety and security
WARNING
●Do not sit on the edge of the
seat or lean against the dash-
board.
●Do not allow a child to stand in
front of the SRS front passenger
airbag unit or sit on the knees of
a front passenger.
●Do not allow the front seat occu-
pants to hold items on their
knees.
●Do not lean against the door,
the roof side rail or the front,
side and rear pillars.
●Do not allow anyone to kneel on
the passenger seats toward the
door or put their head or hands
outside the vehicle.
●Do not attach anything to or
lean anything against areas
such as the dashboard, steering
wheel pad and lower portion of
the instrument panel.
These items can become pro-
jectiles when th e SRS driver,
front passenger and knee air-
bags deploy.
●Do not attach anything to areas
such as a door, windshield, side
windows, front or rear pillar, roof
side rail and assist grip. (Except
for the speed limit label
 P.472)

421-1. For safe use
Owners Manual_USA_M62064_en
WARNING
●Do not hang coat hangers or
hard objects on the coat hooks.
All of these items could become
projectiles and may cause
death or serious injury, should
the SRS curtain shield airbags
deploy.
●If a vinyl cover is put on the area
where the SRS knee airbag will
deploy, be sure to remove it.
●Do not use seat accessories
which cover the parts where the
SRS side airbags inflate as they
may interfere with inflation of
the SRS airbags. Such acces-
sories may prevent the SRS
side airbags from activating cor-
rectly, disable the system or
cause the SRS side airbags to
inflate accidentally, resulting in
death or serious injury.
●Do not strike or apply significant
levels of force to the area of the
SRS airbag components or the
front doors. Doing so can cause
the SRS airbags to malfunction.
●Do not touch any of the compo-
nent parts immediately after the
SRS airbags have deployed
(inflated) as they may be hot.
●If breathing becomes difficult
after the SRS airbags have
deployed, open a door or win-
dow to allow fresh air in, or
leave the vehicle if it is safe to
do so. Wash off any residue as
soon as possible to prevent skin
irritation.
●If the areas where the SRS air-
bags are stored, such as the
steering wheel pad and front
and rear pillar garnishes are
damaged or cracked, have
them replaced by your Toyota
dealer.
●Do not place anything, such as
a cushion, on the front passen-
ger’s seat. Doing so will
disperse the passenger’s
weight, which prevents the sen-
sor from detecting the passen-
ger’s weight properly. As a
result, the SRS front airbags for
the front passenger may not
deploy in the event of a colli-
sion.
■Modification and disposal of
SRS airbag system compo-
nents
Do not dispose of your vehicle or
perform any of the following modi-
fications without consulting your
Toyota dealer. The SRS airbags
may malfunction or deploy
(inflate) accidentally, causing
death or serious injury.
●Installation, re moval, disassem-
bly and repair of the SRS air-
bags
●Repairs, modific ations, removal
or replacement of the steering
wheel, instrument panel, dash-
board, seats or seat upholstery,
front, side and rear pillars, roof
side rails, front door panels,
front door trims or front door
speakers
●Modifications to the front door
panel (such as making a hole in
it)
●Repairs or modifications of the
front fender, front bumper, or
side of the occupant compart-
ment
●Installation of a grille guard (bull
bars, kangaroo bar, etc.), snow
plows or winches
●Modifications to the vehicle’s
suspension system

431-1. For safe use
Owners Manual_USA_M62064_en
1
For safety and security
Sensors
Hood
Lifters
WARNING
●Installation of electronic devices
such as mobile two-way radios
and CD players
●Modifications to your vehicle for
a person with a physical disabil-
ity
Pop Up Hood
In the event of a frontal col-
lision with a body, such as a
pedestrian, the Pop Up
Hood system raises the
hood to reduce the possibil-
ity of a serious impact to the
pedestrian’s head area by
adding clearance to the fuel
cell unit compartment.
When the sensors located
at the back of the front
bumper detect a frontal
impact with a body, such as
a pedestrian, which meets
or exceeds the threshold
level while the vehicle is
being driven within the
operational speed range,
the system operates.
System components

441-1. For safe use
Owners Manual_USA_M62064_en
■Pop Up Hood precautions
●Before scrapping your vehicle,
make sure to contact your Toyota
dealer.
●The Pop Up Hood system cannot
be reused once it has operated.
Have it replaced by your Toyota
dealer.
■PCS-linked Pop Up Hood opera-
tion control
If the PCS (Pre-Collision System)
determines that the possibility of a
collision with a pedestrian or bicy-
clist is high, the Pop Up Hood will be
prepared to operate.
■Pop Up Hood operational condi-
tions
The Pop Up Hood will operate when
the vehicle detect s an impact such
as the following:
●The front bumper detects a frontal
impact equivalent to or greater
than that of a pedestrian while the
vehicle being driven within the
operational speed range of
approximately 16 to 34 mph (25 to
55 km/h). (The system is operated
by an impact of threshold level or
greater, even in the case of a
minor collision that may not leave
a trace on the front bumper. Also,
depending on the impact condi-
tions or vehicle speed, the system
may operate by a collision with a
light or small object or a small ani-
mal.)
●In other situations, such as the fol-
lowing the system may operate
when an impact is applied to the
lower part of the vehicle or front
bumper:
• Colliding with a curb
• Falling into a deep hole
• Landing hard
• Hitting the slope of a parking lot, an undulating road, a protruding
object or fa lling object
■Conditions under which the
Pop Up Hood may not operate
properly
●If a pedestrian c ollides with the
right or left corner of the front
bumper or the side of the vehicle.
As such impacts may be difficult to
detect, the system may not oper-
ate.
●If the vehicle speed is not
detected correctly , such as if the
vehicle is sliding sideways, the
system may not operate properly.
■Conditions under which the
Pop Up Hood will not operate
The Pop Up Hood will not operate in
the following situations:
●Colliding with a lying person
●A frontal impac t applied to the
front bumper while driving at
speeds outside of the operational
speed range
●A side impact or rear impact
●A vehicle rollover (In some acci-
dent situations, the Pop Up Hood
may operate.)
WARNING
■When the Pop Up Hood is
operated
●Do not pull the hood lock
release lever. Doing so after the
Pop Up Hood has operated will
further raise the hood and may
cause an injury. Do not drive
with the hood raised, as doing
so may block the driver’s vision,
possibly causing an accident.
●Do not forcibly push down the
hood. As the popped up hood
cannot be lowered by hand,
doing so may deform the hood
or cause an injury.

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.

461-1. For safe use
Owners Manual_USA_M62064_en
Driver’s and front passenger’s seat belt reminder light
SRS warning light
“AIRBAG OFF” indicator light
“AIRBAG ON” indicator light
Front passenger occupant classification system
Your vehicle is equipped with a front passenger occupant
classification system. This system detects the conditions of
the front passenger seat and activates or deactivates the
front passenger airbag and front passenger knee airbag.
System components
WARNING
■Front passenger occupant
classification system precau-
tions
Observe the following precautions
regarding the front passenger
occupant classification system.
Failure to do so may cause death
or serious injury.
●Wear the seat belt properly.
●Make sure the front passenger’s
seat belt plate has not been left
inserted into the buckle before
someone sits in the front pas-
senger seat.

471-1. For safe use
Owners Manual_USA_M62064_en
1
For safety and security
WARNING
●Make sure the “AIRBAG OFF”
indicator light is not illuminated
when using the seat belt
extender for the front passenger
seat. If the “AIRBAG OFF” indi-
cator light is illuminated, discon-
nect the extender tongue from
the seat belt buckle, and recon-
nect the seat belt. Reconnect
the seat belt extender after
making sure the “AIRBAG ON”
indicator light is illuminated. If
you use the seat belt extender
while the “AIRBAG OFF” indica-
tor light is illum inated, the SRS
airbags for the front passenger
will not activate, which could
cause death or ser ious injury in
the event of a collision.
●Do not apply a heavy load to the
front passenger seat or equip-
ment (e.g. seatback pocket).
●Do not put weight on the front
passenger seat by putting your
hands or feet on the front pas-
senger seat seatback from the
rear passenger seat.
●Do not let a rea r passenger lift
the front passenger seat with
their feet or press on the seat-
back with their legs.
●Do not put objects under the
front passenger seat.
●Do not recline t he front passen-
ger seatback so far that it
touches a rear seat. This may
cause the “AIRBAG OFF” indi-
cator light to be illuminated,
which indicates that the SRS
airbags for the front passenger
will not activate in the event of a
severe accident. If the seatback
touches the rear seat, return the
seatback to a position where it
does not touch the rear seat.
Keep the front passenger seat-
back as upright as possible
when the vehicle is moving.
Reclining the seatback exces-
sively may lessen the effective-
ness of the seat belt system.
●If an adult sits i n the front pas-
senger seat, the “AIRBAG ON”
indicator light i s illuminated. If
the “AIRBAG OFF” indicator is
illuminated, ask the passenger
to sit up straight, well back in
the seat, feet on the floor, and
with the seat belt worn correctly.
If the “AIRBAG OFF” indicator
still remains illumi nated, either
ask the passenger to move to
the rear seat, or if that is not
possible, move the front pas-
senger seat fully rearward.
●When it is unavoidable to install
a forward-facing child restraint
system on the front passenger
seat, install the child restraint
system on the front passenger
seat in the proper order.
(  P. 5 4 )
●Do not modify or remove the
front seats.
●Do not kick the front passenger
seat or subject it to severe
impact. Otherwise, the SRS
warning light m ay come on to
indicate a malfu nction of the
front passenger occupant clas-
sification system. In this case,
contact your Toyota dealer
immediately.

481-1. For safe use
Owners Manual_USA_M62064_en
■Adult*1
■Child*4
WARNING
●Child restraint systems installed
on the rear seat should not con-
tact the front seatbacks.
●Do not use a seat accessory,
such as a cushion and seat
cover, that covers the seat
cushion surface.
●Do not modify or replace the
upholstery of the front seat.
Condition and operation in the front passenger occupant
classification system
Indicator/warning light
“AIRBAG ON” and “AIRBAG OFF” indicator lights“AIRBAG ON”
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
DevicesFront passenger airbagActivatedFront passenger knee airbag
Indicator/warning light
“AIRBAG ON” and “AIRBAG OFF” indicator lights“AIRBAG OFF” or
“AIRBAG ON”
*4
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
DevicesFront passenger airbagDeactivated or
activated
*4Front passenger knee airbag

491-1. For safe use
Owners Manual_USA_M62064_en
1
For safety and security
■Child restraint system with infant*5
■Unoccupied
■There is a malfunction in the system
*1: The system judges a person of adult size as an adult. When a smaller
adult sits in the front passenger seat, the system may not recognize
him/her as an adult depending on his/her physique and posture.
*2: In the event the front passenger is wearing a seat belt
*3: In the event the front passen ger does not wear a seat belt
*4: For some children, child in seat, child in booster seat or chi ld in convert-
ible seat, the system may not recognize him/her as a child. Fac tors
which may affect this can be the physique or posture.
Indicator/warning light
“AIRBAG ON” and “AIRBAG OFF” indicator lights“AIRBAG OFF”*6
SRS warning lightOff
Driver’s and front passenger’s seat belt reminder lightOff*2 or flashing*3
DevicesFront passenger airbagDeactivatedFront passenger knee airbag
Indicator/warning light
“AIRBAG ON” and “AIRBAG OFF” indicator lights“AIRBAG OFF”
SRS warning light
OffDriver’s and front passenger’s seat belt reminder light
DevicesFront passenger airbagDeactivatedFront passenger knee airbag
Indicator/warning light
“AIRBAG ON” and “AIRBAG OFF” indicator lights“AIRBAG OFF”
SRS warning lightOn
Driver’s and front passenger’s seat belt reminder lightOff
DevicesFront passenger airbagDeactivatedFront passenger knee airbag

501-1. For safe use
Owners Manual_USA_M62064_en
*5: Never install a rear-facing child restraint system on the front passenger
seat. A forward-facing child restraint system should only be in stalled on
the front passenger sea t when it is unavoidable. ( P.54)
*6: In case the indicator light is not illuminated, consult this m anual on how
to install the child restr aint system properly. (P. 5 2 )