2023 TOYOTA MIRAI wiring

451-1. For safe use
Owners Manual_USA_M62064_en
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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.

3977-1. Maintenance and care
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Maintenance and care
■When cleaning the carpeted
portions of the glove box, con-
sole box, etc.
If a strong adhesive tape is used,
there is a possibility that the surface
of the carpet could be damaged.
■Front side windows with IR pro-
tective coating (vehicles with IR
protective coating)
The front side windows have IR pro-
tective coating. T o prevent any dam-
age to the IR prote ctive coating,
observe the following:
●If the windows are dirty, gently
wipe them with a cloth soaked in
water or lukewarm water as soon
as possible.
●If the windows are very dirty, do
not open and close them repeat-
edly.
WARNING
■Water in the vehicle
●Do not splash or spill liquid in
the vehicle, such as on the floor,
in the traction battery air vents,
and in the trunk. ( P. 9 0 )
Doing so may cause the traction
battery, electrical components,
etc. to malfunction or catch fire.
●Do not get any of the SRS com-
ponents or wiring in the vehicle
interior wet. ( P.34)
An electrical malfunction may
cause the airbags to deploy or
not function properly, resulting
in death or serious injury.
■Cleaning the interior (espe-
cially instrument panel)
Do not use polish wax or polish
cleaner. The instrument panel
may reflect off the windshield,
obstructing the dr iver’s view and
leading to an accident, resulting in
death or serious injury.
NOTICE
■Cleaning detergents
●Do not use the following types
of detergent, as they may dis-
color the vehicle interior or
cause streaks or damage to
painted surfaces:
• Areas other than the seats and steering wheel: Organic sub-
stances such as benzene or
gasoline, alkaline or acidic solu-
tions, dye, and bleach
• Seats: Alkaline or acidic solu- tions, such as th inner, benzene,
and alcohol
• Steering wheel: Organic sub- stances, such as thinner, and
cleaner that contains alcohol
●Do not use polish wax or polish
cleaner. The instrument panel’s
or other interior part’s painted
surface may be damaged.
■Preventing damage to leather
surfaces
Observe the following precautions
to avoid damage to and deteriora-
tion of leather surfaces:
●Remove any dust or dirt from
leather surfaces immediately.
●Do not expose the vehicle to
direct sunlight for extended peri-
ods of time. Park the vehicle in
the shade, especially during
summer.
●Do not place items made of
vinyl, plastic, or containing wax
on the upholstery, as they may
stick to the leather surface if the
vehicle interior heats up signifi-
cantly.

4417-3. Do-it-yourself maintenance
Owners Manual_USA_M62064_en
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Maintenance and care
Blown fuse
Type B Normal fuse
Blown fuse
Type CNormal fuse
Blown fuse
Type DNormal fuse
Blown fuse
■After a fuse is replaced
●When installing the lid, make sure
that the tab is ins talled securely.
●If the lights do not turn on even
after the fuse has been replaced,
a bulb may need replacement.
●If the replaced fuse blows again,
have the vehicle inspected by
your Toyota dealer.
■If there is an ove rload in a cir-
cuit
The fuses are designed to blow, pro-
tecting the wiring harness from
damage.
WARNING
■To prevent system break-
downs and vehicle fire
Observe the following precau-
tions.
Failure to do so may cause dam-
age to the vehicle, and possibly a
fire or injury.
●Never use a fuse of a higher
amperage rating than that indi-
cated, or use any other object in
place of a fuse.
●Always use a genuine Toyota
fuse or equivalent.
Never replace a fuse with a
wire, even as a temporary fix.
●Do not modify the fuses or fuse
boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical over-
load determined and repaired by
your Toyota dealer as soon as
possible.

4618-2. Steps to take in an emergency
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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.