2023 TOYOTA MIRAI fuse box

3726-4. Using the other interior features
Owners Manual_USA_M62064_en
The power outlet can be used
for 12 V accessories that run on
less than 10 A.Open the console box and open
the lid.
■The power outlet can be used
when
The power switch is in ACC or ON.
■When stopping the fuel cell sys-
tem
Disconnect electrical devices with
charging functions, such as mobile
battery packs. If such devices are
left connected, the fuel cell system
may not stop normally.
WARNING
■Assist grip
Do not use the assist grip when
getting in or out o f the vehicle or
rising from your seat.
Doing so could damage the assist
grip, or could cause you to injure
yourself by falling over.
NOTICE
■To prevent damage to the
assist grip
Do not hang any heavy object or
put a heavy load on the assist
grip.
Coat hooks
WARNING
■Items that must not be hung
on the hook
Do not hang a coat hanger or
other hard or sharp object on the
hook. If the SRS curtain shield air-
bags deploy, these items may
become projectiles that cause
death or serious injury.
Power outlet (12 VDC)
NOTICE
■To avoid damaging the power
outlet
Close the power outlet lid when
the power outlet is not in use.
Foreign objects or liquids that
enter the power outlet may cause
a short circuit.
■To prevent the fuse from
being blown
Do not use an accessory that
uses more than 12 V 10 A.

3736-4. Using the other interior features
Owners Manual_USA_M62064_en
6
Interior features
The power outlet can be used
for 120 V accessories that run
on less than 100 W.
Rear of the console box
Open the lid.
In the trunk
Open the lid.
■The power outlet can be used
when
The power switch is in ACC or ON.
■When stopping the fuel cell sys-
tem
Disconnect electrical devices with
charging functions, such as mobile
battery packs.
If such devices are left connected,
the fuel cell system may not stop
normally.
NOTICE
■To prevent incorrect opera-
tion of the vehicle
When turning the power switch
off, make sure to disconnect
accessories designed for
charging, such as portable char-
gers, power banks , etc., from the
power outlet.
If such an accessory is left con-
nected, the following may occur:
●The doors cannot be locked
using the smart key system or
wireless remote control.
●The opening scr een will be dis-
played on the multi-information
display.
●The interior lights, instrument
panel lights, etc., will illuminate.
■To prevent 12-volt battery dis-
charge
Do not use the power outlet lon-
ger than necessary when the fuel
cell system is off.
Power outlet (120
VAC/100W) (if equipped)
NOTICE
■To avoid damaging the power
outlet
Close the power outlet lid when
the power outlet is not in use.
Foreign objects or liquids that
enter the power outlet may cause
a short circuit.
■To prevent the fuse from
being blown
Do not use an accessory that
uses more than 120 V 100 W.

4087-3. Do-it-yourself maintenance
Owners Manual_USA_M62064_en
Inverter coolant reservoir ( P.411)
Fuel cell stack coolant reservoir ( P.411)
Fuse boxes ( P.438)
Brake fluid reservoir ( P.412)
Washer fluid tank ( P.412)
Inverter coolant radiator ( P.411)
Electric cooling fan
Condenser ( P.411)
Fuel cell stack coolant radiator ( P. 4 1 1 )
■12-volt battery
 P. 4 1 3
Fuel cell unit compartment
Components

4387-3. Do-it-yourself maintenance
Owners Manual_USA_M62064_en
1Turn the power switch off.
2 Open the fuse box cover.
Fuel cell unit compartment:
type A fuse box
Push the tabs in and lift the lid off.
Fuel cell unit compartment:
type B fuse box
Remove the fuel cell unit compart-
ment cover ( P.409) and push the
tabs in and lift the lid off.
NOTICE
■When replacing the battery
Use a flathead screwdriver of
appropriate size. Applying exces-
sive force may deform or damage
the cover.
■For normal operation after
replacing the battery
Observe the following precautions
to prevent accidents:
●Always work with dry hands.
Moisture may cau se the battery
to rust.
●Do not touch or move any other
component inside the remote
control.
●Do not bend either of the battery
terminals.
Checking a nd replac-
ing fuses
If any of the electrical com-
ponents do not operate, a
fuse may have blown. If this
happens, check and replace
the fuses as necessary.
Checking and replacing
fuses

4407-3. Do-it-yourself maintenance
Owners Manual_USA_M62064_en
Trunk
Remove the luggage mat
( P.361), and while lifting up the
luggage under tray, use a flathead
screw driver and r emove the clip.
Push the tab in and lift the lid off.
3 Remove the fuse with the
pullout tool.
Only type A fuse can be
removed using the pullout
tool.
4 Check if the fuse is blown.
Type A and B:
Replace the blown fuse with a new
fuse of an appropriate amperage
rating. The amperage rating can be
found on the fuse box lid.
Type C and D:
Contact your Toyota dealer.
Type A
Normal fuse

4417-3. Do-it-yourself maintenance
Owners Manual_USA_M62064_en
7
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.

4858-2. Steps to take in an emergency
Owners Manual_USA_M62064_en
8
When trouble arises
If you have a set of jumper (or
booster) cables and a second
vehicle with a 12-volt battery,
you can jump start your vehicle
by following the steps below.
1 Confirm that the electronic
key is being carried.
When connecting the jumper (or
booster) cables, depending on the
situation, the ala rm may activate and doors locked. (
P. 7 2 )
2 Open the hood. Remove the
fuse box cover. ( P.406)
Push the tabs in and lift the lid off.
3 Open the exclusive jump
starting terminal cover.
4 Connect a positive jumper cabl e clamp to on your vehicle and
connect the clamp on the other end of the positive cable to on
the second vehicle. Then, connect a negative cable clamp to
on the second vehicle and connect the clamp at the other end of
the negative cable to .
If the 12-volt batter y is
discharged
The following procedures
may be used to start the fuel
cell system if the 12-volt
battery is discharged.
You can also call your Toy-
ota dealer or a qualified
repair shop.
Restarting the fuel cell
system

4868-2. Steps to take in an emergency
Owners Manual_USA_M62064_enWhen connecting to an unpaint
ed metallic point , make the connection
after checking the surrounding a rea. Also, do not make any connections
where parts nearby may interfere.
Use jumper cables that can reach the specified terminals and connecting
point.
Exclusive jump starting terminal (your vehicle)
Positive (+) battery terminal (second vehicle)
Negative (-) battery term inal (second vehicle)
Metallic point shown in the illustration
5 Start the engine of the sec-
ond vehicle. Increase the
engine speed slightly and
maintain at that level for
approximately 5 minutes to
recharge the 12-volt battery
of your vehicle.
6 Open and close any of the
doors of your vehicle with the
power switch off.
7 Maintain the engine speed of
the second vehicle and start
the fuel cell system of your
vehicle by turning the power
switch to ON. 8
Make sure the “READY” indi-
cator comes on. If the indica-
tor does not come on, contact
your Toyota dealer.
9 Once the fuel cell system has
started, remove the jumper
cables in the exact reverse
order from which they were
connected.
10Close the exclusive jump starting terminal cover and
install the fuse box cover.
Once the fuel cell system starts,
have the vehicle inspected at
your Toyota dealer as soon as
possible.