2023 TOYOTA MIRAI warning light

4247-3. Do-it-yourself maintenance
Owners Manual_USA_M62064_enbeginning.
●In the following situations, ID code
registration will not be started or
was not completed properly and
the system will no
t operate prop-
erly. Perform the ID code registra-
tion procedure again.
• If, when attempting to start ID
code registration, the tire pressure
warning light does not blink slowly
3 times.
• If, when the vehicle has been driven for about 20 minutes after
performing ID co de registration,
the tire pressur e warning light
blinks for approxi mately 1 minute
and then illu minates.
●If ID code registration cannot be
completed after performing the
above procedure, contact your
Toyota dealer.
Stop the vehicle in a safe
place on a hard, flat surface.
 Set the parking brake.
 Shift the shift position to P.
 Stop the fuel cell system.
■Jack and tools
As your vehicle is not installed spare
tire, the following t ools for replacing
a tire are not included with your
vehicle. They can be purchased at
your Toyota dealer.
●Wheel nut wrench
●Jack
●Jack handle
Replacing the tire
When raising your vehicle
with a jack, position the jack
correctly.
Improper placement may
damage your vehicle or
cause injury.
If necessary tire replace-
ment seems difficult to per-
form, contact your Toyota
dealer.
Before jacking up the
vehicle

4257-3. Do-it-yourself maintenance
Owners Manual_USA_M62064_en
7
Maintenance and care
1 Chock the tires.
2 Slightly loosen the wheel
nuts (one turn).
3 Turn the tire jack portion
by hand until the notch of the
WARNING
■Using the tire jack
Observe the following precau-
tions.
Improper use of the tire jack may
cause the vehicle to suddenly fall
off the jack, leading to death or
serious injury.
●Do not use the tire jack for any
purpose other than replacing
tires or installing and removing
tire chains.
●Do not use other tire jacks for
replacing tires on this vehicle.
●Put the jack prope rly in its jack
point.
●Do not put any part of your body
under the vehicle while it is sup-
ported by the jack.
●Do not start the fuel cell system
or drive the vehicle while the
vehicle is suppor ted by the jack.
●Do not raise the vehicle while
someone is inside.
●When raising the vehicle, do not
put an object on or under the
jack.
●Do not raise the vehicle to a
height greater than that required
to replace the tire.
●Use a jack stand if it is neces-
sary to get under the vehicle.
●When lowering the vehicle,
make sure that there is no-one
near the vehicle. If there are
people nearby, warn them
vocally before lowering.
Removing a tire
TireWheel chock
positions
Front left-hand
sideBehind the rear
right-hand side
tire
Front right-hand
sideBehind the rear
left-hand side tire
Rear left-hand
sideIn front of the
front right-hand
side tire
Rear right-hand
sideIn front of the
front left-hand
side tire

4267-3. Do-it-yourself maintenance
Owners Manual_USA_M62064_en
jack is in contact with the jack
point.
The jack point guides are located
under the rocker panel. They indi-
cate the jack point positions.
4Raise the vehicle until the tire
is slightly raised off the
ground.
5 Remove all the wheel nuts
and the tire.
When resting the tire on the
ground, place the tire so that the
wheel design faces up to avoid scratching the wheel surface.
1
Remove any dirt or foreign
matter from the wheel con-
tact surface.
If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while the vehicle is in
motion, causing the tire to come off.
WARNING
■Replacing a tire
Do not touch the disc wheels or
the area around the brakes imme-
diately after the vehicle has been
driven.
After the vehicle has been driven
the disc wheels and the area
around the br akes will be
extremely hot. Touching these
areas with hands, feet or other
body parts while changing a tire,
etc. may result in burns.
Installing the tire

4347-3. Do-it-yourself maintenance
Owners Manual_USA_M62064_en
1Turn the power switch off.
2 Remove the grille.
3 Remove the filter from the air
intake vent grille.
If dust has accumu lated on the air
intake vent grille, remove t he dust
with a vacuum cleaner, etc.
4 Remove the dust and sand
from the filter.
Using a vacuum cleaner, etc.,
absorb dust and sand from the filter
by profiling the nozzle lightly along
the fold.
5Hold the filter to the light and
check if it is not clogged.
If the dust or sand cannot be
removed completely, contact your
Toyota dealer.
6Reinstall the filter to the grille.
NOTICE
■If “Maintenance Required for
Traction Battery Cooling
Parts See Owner’s Manual” is
shown on the multi-informa-
tion display
Clean the air intake vents immedi-
ately.
If the vehicle is continuously
driven with the warning message
displayed, it may cause a mal-
function or output restriction of the
traction battery.
Cleaning procedure

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.

445
Owners Manual_USA_M62064_en
8
8
When trouble arises
When trouble arises
8-1. Essential informationEmergency flashers .... 446
If your vehicle has to be stopped in an emergency.................................. 446
If the vehicle is submerged or water on the road is ris-
ing ............................. 4478-2. Steps to take in an emer-
gency
If your vehicle needs to be towed ......................... 449
If you think s omething is
wrong......................... 453
If a warning light turns on or a warning buzzer sounds.................................. 454
If a warning message is dis- played ........................ 464
If you have a flat tire .... 467
If the fuel cell system will not start ........................... 480
If you lose your keys ... 481
If the fuel door cannot be opened ........ ..............482
If the electro nic key does
not operate properly .. 482
If the 12-volt battery is dis- charged ..................... 485
If your vehicle overheats .................................. 490
If the vehicle becomes stuck .................................. 494

4548-2. Steps to take in an emergency
Owners Manual_USA_M62064_en
■Hydrogen leak warning light (warning buzzer)
■Brake system warning light (warning buzzer)
■Brake system warning light (warning buzzer)
If a war ning light tur ns on or a war ning buzzer
sounds
Calmly perform the following actions if any of the warning
lights comes on or flashes. If a light comes on or flashes, but
then goes off, this does not necessarily indicate a malfunc-
tion in the system. However, if this continues to occur, have
the vehicle inspected by your Toyota dealer.
Actions to the warning lights or warning buzzers
Warning lightDetails/Actions
When a hydrogen gas leak is d etected, a buzzer sounds, a
light comes on, and a warning message is displayed on the
multi-information display.
 P. 9 0
Warning lightDetails/Actions
(U.S.A.)
or
(Red)
(Canada)
Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. C ontinuing to drive the vehi-
cle may be dangerous.
Warning lightDetails/Actions
(Yellow)
Indicates a malfunction in:
 The regenerative braking system;
 The electronically contr olled brake system; or
 The parking brake system
 Have the vehicle inspecte d by your Toyota dealer
immediately.

4558-2. Steps to take in an emergency
Owners Manual_USA_M62064_en
8
When trouble arises
■High coolant temperature warning light
■Fuel cell system overheat warning light* (warning buzzer)
*: This light illuminates on the mu lti-information display with a message.
■Charging system warning light* (warning buzzer)
*: This light illuminates on the mu lti-information display with a message.
■SRS warning light
■Pop Up Hood warning light
Warning lightDetails/Actions
(Red)
Indicates that the coolant temperature is too high
 Immediately stop the v ehicle in a safe place.
Handling method ( P.490)
Warning lightDetails/Actions
Indicates the fuel cell system has overheated
 Stop the vehicle in a safe place.
Handling method ( P.490)
Warning lightDetails/Actions
Indicates a malfunction in t he vehicle’s charging system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Warning lightDetails/Actions
Indicates a malfunction in:
The SRS airbag system;
 The front passenger occupant classification system; or
 The seat belt pretensioner system
 Have the vehicle inspecte d by your Toyota dealer
immediately.
Warning lightDetails/Actions
Indicates that the Pop Up Hood system has operated
 The Pop Up Hood system can not be reused once it
has operated. Have it replaced by your Toyota dealer.
Indicates a malfunction in the Pop Up Hood system
 Have the vehicle inspecte d by your Toyota dealer
immediately.