2022 TOYOTA MIRAI display

4227-3. Do-it-yourself maintenance
Owners Manual_USA_M62084_en
■Cleaning the air intake vents
●Dust in the air intake vents may
interfere with the cooling of the
traction battery. If charging/dis-
charging of the traction battery
becomes limited, the distance that
the vehicle can be driven using
the electric motor may be reduced
and the fuel economy may be
reduced. Inspect and clean the air
intake vents periodically.
●Improper handling of the air intake
vent covers and filters may result
in damage to the m. If you have
any concerns about cleaning the
filter, contact you r Toyota dealer.
■If “Maintenance Required for
Traction Battery Cooling Parts
See Owner’s Manual” is shown
on the multi-information display
●If this warning message is shown
on the multi-information display,
remove the air inta ke vent covers
and clean the filters. ( P.453)
●After cleaning the air intake vents,
start the fuel cell system and
check that the warning message
is no longer shown.
It may take approximately 20 min-
utes after the fuel cell system is
started until the warning message
disappears. If the warning message
does not disappear, have the vehi-
cle inspected by your Toyota dealer.
WARNING
■When cleaning the air intake
vents
●Do not use water or other liq-
uids to clean the air intake
vents. If water is applied to the
traction battery or other compo-
nents, a malfunction or fire may
occur.
●Before cleaning the air intake
vents, make su re to turn the
power switch off to stop the fuel
cell system.
■When removing the air intake
vent covers
Do not touch the service plug
located near the air intake vents.
(  P. 7 9 )
NOTICE
■When cleaning the air intake
vents
When cleaning the air intake
vents, make sure to only use a
vacuum to suck out dust and
clogs. If a comp ressed air blow
gun, etc. is used to blow out dust
and clogs, the dust or clogs may
be pushed into the air intake
vents, which may affect the per-
formance of the traction battery
and cause a malfunction.
■To prevent damage to the
vehicle
●Do not allow wa ter or foreign
matter to enter the air intake
vent when the cover is
removed.
●Carefully handle the removed
filter so that i t will not be dam-
aged. If the filter is damaged,
have it replaced with a new filter
by your Toyota dealer.
●Make sure to reinstall the filter
and cover to their original posi-
tions after cleaning.
●Do not install anything to the air
intake vent other than the exclu-
sive filter for this vehicle or use
the vehicle witho ut the filter
installed.

4237-3. Do-it-yourself maintenance
Owners Manual_USA_M62084_en
7
Maintenance and care
■If the electronic key battery is
depleted
The following symptoms may occur:
●The smart key system and wire-
less remote control will not func-
tion properly.
●The operational range will be
reduced.
 Flathead screwdriver
 Small flathead screwdriver
 Lithium battery CR2032
■Use a CR2032 lithium battery
●Batteries can be purchased at
your Toyota dealer, local electrical
appliance shops or camera stores.
●Replace only with the same or
equivalent type recommended by
the manufacturer.
●Dispose of used batteries accord-
ing to local laws.
NOTICE
■If “Maintenance Required for
Traction Battery Cooling
Parts See Owner’s Manual” is
shown on the multi-informa-
tion display
If the vehicle is continuously
driven with the warning message
(indicating that charging/discharg-
ing of the traction battery may
become limited) displayed, the
traction battery may malfunction.
If the warning message is dis-
played, clean the air intake vents
immediately.
Electronic key batter y
Replace the battery with a
new one if it is depleted.
As the key may be damaged
if the following procedure is
not performed properly, it is
recommended that key bat-
tery replacement be per-
formed by your Toyota
dealer.
Items to prepare

4368-2. Steps to take in an emergency
Owners Manual_USA_M62084_en
In the following situations, it is
not possible to be towed by another vehicle using cables or
chains, as the rear wheels may
be locked due to the parking
lock. Contact your Toyota dealer
or commercial towing service.

There is a malfunction in the
shift control system. ( P.451)
 There is a malfunction in the
immobilizer system. ( P.69)
 There is a malfunction in the
smart key system. ( P.468)
 The 12-volt battery is dis-
charged. ( P.471)
The following may indicate a
problem with your transmission.
Contact your Toyota dealer or
commercial towing service
before towing.
 The fuel cell system warning
message is shown on the
multi-information display and
the vehicle does not move.
 The vehicle makes an abnor-
mal sound.
WARNING

4418-2. Steps to take in an emergency
Owners Manual_USA_M62084_en
8
When trouble arises
■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. 8 8
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.
Indicates that the brake pads are worn out (only the right-
side pads can be detected)
 Have the vehicle inspecte d by your Toyota dealer.
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.

4428-2. Steps to take in an emergency
Owners Manual_USA_M62084_en
■High coolant temperature warning light*
*: This light illuminat es on the multi-information display.
■Fuel cell system overheat warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Charging system warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■SRS 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.476)
Warning lightDetails/Actions
Indicates the fuel cell system has overheated
 Stop the vehicle in a safe place.
Handling method ( P.476)
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.

4448-2. Steps to take in an emergency
Owners Manual_USA_M62084_en
■PCS warning light
■LTA indicator* (warning buzzer)
*: This light illuminat es on the multi-information display.
■Intuitive parking assist OFF indicator (warning buzzer)
Warning lightDetails/Actions
(Flashes or illu-
minates)
When a buzzer sounds simultaneously:
Indicates a malfunct ion has occurred in the PCS (Pre-Colli-
sion System).
 Have the vehicle inspecte d by your Toyota dealer
immediately.
When a buzzer does not sound:
The PCS (Pre-Collision Syst em) has become temporarily
unavailable, corrective ac tion may be necessary.
 Follow the instructions dis played on the multi-infor-
mation display. ( P.210, 451)
If the PCS (Pre-Collision Syst em) or VSC (Vehicle Stability
Control) system is disabled, the PCS warning light will illu-
minate.
 P.316
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in t he LTA (Lane Tracing Assist)
 Follow the instructions dis played on the multi-infor-
mation display. ( P.233)
Warning lightDetails/Actions
(Flashes)
(If equipped)
Indicates a malfunction in the i ntuitive parking assist func-
tion
 Have the vehicle inspecte d by your Toyota dealer
immediately.
Indicates that the system is te mporarily unavailable, possi-
bly due to a sensor being dirt y or covered with ice, etc.
 Follow the instructions dis played on the multi-infor-
mation display. ( P.256)

4458-2. Steps to take in an emergency
Owners Manual_USA_M62084_en
8
When trouble arises
■PKSB OFF indicator (warning buzzer)
■RCTA OFF indicator (warning buzzer)
■RCD OFF indicator* (warning buzzer)
*: This light illuminat es on the multi-information display.
Warning lightDetails/Actions
(Flashes)
(If equipped)
When a buzzer sounds:
Indicates a malfun ction in the PKSB ( Parking Support
Brake) system
 Have the vehicle inspecte d by your Toyota dealer
immediately.
When a buzzer does not sound:
Indicates that the system is te mporarily unavailable, possi-
bly due to a sensor being dirt y or covered with ice, etc.
 Follow the instructions dis played on the multi-infor-
mation display. ( P.277)
Warning lightDetails/Actions
(Flashes)
(If equipped)
Indicates a malfunction in t he RCTA (Rear Cross Traffic
Alert) function
 Have the vehicle inspecte d by your Toyota dealer
immediately.
Indicates that the rear bumper around the radar sensor is
covered with dirt, etc. ( P.250)
 Follow the instructions dis played on the multi-infor-
mation display. ( P.264)
Warning lightDetails/Actions
(Flashes)
(If equipped)
When a buzzer sounds:
Indicates a malfunction in t he RCD (Rear Camera Detec-
tion) function
 Have the vehicle inspecte d by your Toyota dealer
immediately.
When a buzzer does not sound:
Indicates that the function te mporarily cannot be used due
to the camera being dirty, etc.
 Follow the instructions dis played on the multi-infor-
mation display. ( P.271)

4468-2. Steps to take in an emergency
Owners Manual_USA_M62084_en
■Slip indicator light
■Inappropriate pedal operation warning light* (warning buzzer)
*: This light illuminat es on the multi-information display.
■Brake hold operated indicator (warning buzzer)
Warning lightDetails/Actions
Indicates a malfunction in:
The VSC system;
 The TRAC system; or
 The hill-start assist control system
 Have the vehicle inspecte d by your Toyota dealer
immediately.
Warning lightDetails/Actions
When a buzzer sounds:
Indicates a malfunction in:
 The Brake Override System
 The Drive-Start Control
 Have the vehicle inspecte d by your Toyota dealer
immediately.
Indicates that the shift position was changed and Drive-
Start Control was operated while depressing the accelerator
pedal.
 Momentarily release the accelerator pedal.
When a buzzer does not sound:
Indicates that the accelerator and brake pedals are being
depressed simultaneously, and the Brake Override System
is operating.
 Release the accelerator pedal and depress the brake
pedal.
Warning lightDetails/Actions
(Flashes)
Indicates a malfunction in the brake hold system
 Have the vehicle inspecte d by your Toyota dealer
immediately.