2023 TOYOTA MIRAI air conditioning

4TABLE OF CONTENTS
Owners Manual_USA_M62064_en
Parking Support Brake func-tion (pedestrians rear of the
vehicle) ........................ 291
Toyota Teammate Advanced Park ............................. 293
Driving mode select switch .................................... 320
Snow mode ................... 321
Driving assist systems .. 322
5-6. Driving tips Winter driving tips ......... 327
6-1. Using the air conditioning
system and defogger
ALL AUTO control ......... 332
Automatic air conditioning system (Type A) .......... 333
Automatic air conditioning system (Type B) .......... 340
Rear automatic air condition- ing system ................... 349
Heated steering wheel/seat heaters/seat ventilators 351
6-2. Using the interior lights Interior lights list ............ 355
6-3. Using the storage features List of storage features . 358
Trunk features ............... 361
6-4. Using the other interior fea- tures
Electronic sunshade...... 363
Other interior features ... 364
Garage door opener...... 3827-1. Maintenance and care
Cleaning and protecting the vehicle exterior ............ 392
Cleaning and protecting the vehicle interior ............. 396
7-2. Maintenance Maintenance requirements.................................... 400
General maintenance .... 401
7-3. Do-it-yourself maintenance Do-it-yourself service precau-tions ............................. 404
Hood .............................. 406
Positioning a floor jack .. 406
Fuel cell unit compartment .................................... 408
12-volt battery................ 413
Tires .............................. 416
Replacing the tire .......... 424
Tire inflation pressure .... 428
Wheels .......................... 430
Air conditioning filter ...... 432
Cleaning the traction battery air intake vents ............ 433
Electronic key battery .... 436
Checking and replacing fuses .................................... 438
Headlight aim ................ 442
Light bulbs ..................... 443
6Interior features
7Maintenance and care

18Pictorial index
Owners Manual_USA_M62064_en
Warning messages ............................................... ............... P.464
Emergency flasher switch ....................................... .......... P.446
Audio system
*1
Air conditioning system*2................................................. P.340
Usage................................................................................... P.340
Air conditioning system ............................. ............... P.333, 340
Usage.......................................................... ................. P.333, 340
Rear window defogger ........................................... ...... P.335, 342
Trunk opener main switch ................................................. P.135
Shift lever.................................................... ........................ P.185
Changing the shift position.................................... ............... P.185
Precautions for towing .. ....................................... ................ P.449
Power switch ................................................... ................... P.180
Starting the fuel cell system/c hanging the modes ................P.180
Emergency stop of the fuel cell system ............................... P.446
When the fuel cell system will not start ....................... ......... P.480
Warning messages ............................................... ............... P.464
Tilt and telescopic st eering control switch
*2/tilt and telescopic
steering lock release lever
*2............................................. P.147
Adjustment ..................................................... ...................... P.147
Driving position memory
*2.................................................... P.142
Hood lock release lever ........................................ ............. P.406
*1: Refer to “MULTIMEDIA OWNER’S MANUAL”.
*2: If equipped

832-1. Fuel cell electric vehicle
Owners Manual_USA_M62064_en
2
Fuel cell system
Electric motor (traction motor)
High-voltage cables (orange)
Fuel cell stack (fuel cell and hydrogen pump)
Air compressor
Air conditioning compressor
■If “Hydrogen Leakage Detected
Visit Your Dealer” is displayed
on the multi-information display
A small amount of hydrogen gas
may be leaking. Have the vehicle
inspected immediately at the near-
est Toyota dealer.
■If “FCV System Shutdown Due
to Hydrogen Leakage Stop in a
Safe Place See Owner’s Man-
ual” is displayed on the multi-
information display
●Hydrogen gas may be leaking.
When hydrogen gas is leaking or
some other malfunction is
detected: P. 8 7
●The air conditioning system will
shut off automatically.
■Running out of fuel
When the vehicle has run out of fuel
and the fuel cell system cannot be
started, refuel the vehicle until the
low fuel level warning light ( P.460)
turns off before try ing to restart. It
may not be able to restart if the refu-
eled amount is too low.
■Fuel cell stack
●Depending on the usage environ-
ment, the fuel ce ll power output
may decline over the life of the
vehicle. However, this will have
almost no effect on driving perfor-
mance.
●In the following situations, the fuel
cell power output may decline
faster than normal driving:
• Extended use in areas with high
amounts of dust
• Extended use in areas with high levels of sulfur (such as volcanoes
or hot springs).
• Extended use in areas with high concentrations o f the following
substances:
-Organic solvents, such as paint and
thinner
-Amine-related materials such as
ammonia
-Chlorinated substances such as
salt air and snow-melting agent
• Salt water gets into the air cleaner filter
It is recommended to replace the
air cleaner filter and clean the sur-
rounding components. Have the
vehicle inspected at your Toyota
dealer
• The number of times the fuel cell system is started and stopped is
excessively high
• Extended use in freezing tem- peratures
• Fill fuel with impurities which do not follow ISO-14687
■Hydrogen tanks
●The hydrogen tanks are the high-
pressure storage containers that
are filled with co mpressed hydro-
gen gas. The vehicle can be refu-
eled at hydrogen stations.
●The hydrogen tanks have an expi-
ration date. Vehicles with expired
hydrogen tanks must not be
driven or refueled until the hydro-
gen tanks are replaced. The expi-
ration date is written on the inside
of the fuel door. Consult your Toy-
ota dealer.
●Consult your Toyota dealer if the

912-1. Fuel cell electric vehicle
Owners Manual_USA_M62064_en
2
Fuel cell systemMaintaining the Fuel cell System
Indicator to Eco area on the
multi-information display can
extend your driving range.
( P.103, 108)
Drive your vehicle smoothly.
Avoid abrupt acceleration and
deceleration.
Mild acceleration and decelera-
tion can help curb wasteful fuel
consumption.
If the brakes are operated gently
and in a timely manner, a
greater amount of electrical
energy can be regenerated
when slowing down.
Repeated acceleration and
deceleration, as well as long
waits at traffic lights, will lead to decreased fuel economy. Check
traffic reports before leaving and
avoid delays as much as possi-
ble. When driving in a con-
gested traffic situations, gently
release the brake pedal to allow
the vehicle to move forward
slightly while avoiding overuse
of the accelerator pedal. Doing
so can help control excessive
fuel consumption.
Similar to an electric vehicle, a
fuel cell electric vehicle uses the
most fuel in high output driving
such as driving on a steep uphill
or at high speeds. Moderate the
vehicle speed and maintain a
steady speed.
When using Eco drive mode, the
torque corresponding to the
accelerator pedal depression
amount can be generated more
smoothly than it is in normal
conditions. In addition, the oper-
ation of the air conditioning sys-
tem (heating/cooling) will be
minimized, improving the fuel
economy. (
P.320)
 Use the air conditioning only
when necessary. Doing so
Fuel cell electric vehi-
cle driving tips
To maximize fuel economy
and range, pay attention to
the following:
Use of Fuel cell System
Indicator
Accelerator pedal/brake
pedal operation
When braking
Delays
Driving with high power
output
Using Eco drive mode
Air conditioning

922-1. Fuel cell electric vehicle
Owners Manual_USA_M62064_en
can help reduce excessive
fuel consumption.
In summer: When the ambient
temperature is high, use the
recirculated air mode. Doing
so will help to reduce the bur-
den on the air conditioning
system and reduce fuel con-
sumption as well.
In winter: Avoid excess heat-
ing. Use the seat heater (if
equipped) or steering heater
(if equipped) to minimize the
need for cabin heating
(P.351).
 Using eco air conditioning
mode, this helps curb fuel
consumption even with the air
conditioning system turned
on. ( P.334, 341)
Make sure to check the tire infla-
tion pressure frequently.
Improper tire inflation pressure
can cause poor fuel economy.
Also, as snow tires can cause
large amounts of friction, their
use on dry roads can lead to
poor fuel economy. Use tires
that are appropriate for the sea-
son.
Carrying heavy luggage will lead
to reduced fuel economy. Install-
ing a large roof rack will also reduce fuel economy.
Checking tire inflation
pressure
Luggage

1013-1. Instrument cluster
Owners Manual_USA_M62064_en
3
Vehicle status information and indicators
1 Brighter
2 Darker
■Instrument cluster brightness
adjustment
The instrument cluster brightness
levels when the tail lights are on and
off can be adjusted individually.
However, when the surroundings
are bright (daytime, etc.), turning on
the tail lights will not chan ge the
instrument cluster brightness.
■Fuel gauge
Displays the quantity of fuel
remaining in the tank
■Driving range
 Displays the possible driving
distance computed from the
fuel consumption studied from
the driving history and the
current remaining amount of
fuel.
 When the air conditioning sys-
tem is operating, is dis-
played below the driving
range and this will be the driv-
ing range with the air condi- tioning system on is
displayed.
■When the low fuel level warning
light turns on
The low fuel level warning light turns
on ( P.460) when the fuel gets low.
In that case, refuel the vehicle.
■Possible Drivi ng Distance
●The actual possible driving dis-
tance may differ as fuel consump-
tion changes, depending on
driving environment (weather, traf-
fic, etc.) and conditions (sudden
acceleration, air conditioning,
etc.).
●The driving range may shorten
even when not driving due to
power consumption by the sys-
tem.
●The possible driving distance will
be displayed as “--- miles (--- km)”
in the following cases:
• When the remaining fuel is being calculated (short time).
• When the remaining fuel total
reaches “E”.
• When a malfunction occurs where the possible driving distance can-
not be calculated.
Fuel gauge and driving
range

1053-1. Instrument cluster
Owners Manual_USA_M62064_en
3
Vehicle status information and indicators
 When the air conditioning sys-
tem is operating, is dis-
played next to the driving
range and this will be the driv-
ing range with the air condi-
tioning system on is
displayed.
■When the low fuel level warning
light turns on
The low fuel level warning light turns
on ( P.460) when the fuel gets low.
In that case, refuel the vehicle.
■Possible Driving Distance
●The actual possible driving dis-
tance may differ as fuel consump-
tion changes, depending on
driving environment (weather, traf-
fic, etc.) and cond itions (sudden
acceleration, air conditioning,
etc.).
●The driving range may shorten
even when not driving due to
power consumption by the sys-
tem.
●The possible driv ing distance will
be displayed as “--- miles (--- km)”
in the following cases:
• When the remaining fuel is being calculated (short time).
• When the remaining fuel total reaches “E”.
• When a malfunction occurs where
the possible drivi ng distance can-
not be calculated.
Following information is dis-
played on the multi-information
display.
■With 8-inch multi-informa-
tion display
Driving support system infor-
mation
Displays an image when the follow-
ing systems are operating and a
menu icon other than is
selected:
• LTA (Lane Tracing Assist) ( P.230)
• Dynamic radar cruise control with full-speed range ( P.244)
Multi-infor mation dis-
play
The multi-information dis-
play is used to display fuel
efficiency related informa-
tion and various types of
driving-related information.
The multi-information dis-
play can also be used to
change the display settings
and other settings.
Display contents

2175-5. Using the driving support systems
Owners Manual_USA_M62064_en
5
Driving
■If a warning message is displayed on the multi-information disp lay
A system may be tempor arily unavailable or there may be a malfu nction in
the system.
●In the following situations, perform the actions specified in t he table. When
the normal operating conditions are detected, the message will disappear
and the system will be come operational.
If the message does not disapp ear, contact your Toyota dealer.
SituationActions
When the area around a camera is
covered with dirt, moisture (fogged
up, covered with condensation, ice,
etc.), or other foreign matterUsing the wiper and A/C function,
remove the dirt and other attached
matter ( P.334, 342).
When the temperature around the
front camera is outside of the opera-
tional range, such as when the vehi-
cle is in the sun or in an extremely
cold environment
If the front camera is hot, such as
after the vehicle had been parked in
the sun, use the air conditioning sys-
tem to decrease the temperature
around the front camera.
If a sunshade was used when the
vehicle was parked, depending on its
type, the sunlight reflected from the
surface of the sunshade may cause
the temperature of the front camera
to become excessively high.
If the front camera is cold, such after
the vehicle is parked in an extremely
cold environment, use the air condi-
tioning system to increase the tem-
perature around the front camera.
The area in front o f the front camera
is obstructed, such as when the
hood is open or a sticker is attached
to the part of the win dshield in front
of the front camera.
Close the hood, rem ove the sticker,
etc., to clear the obstruction.
When “Pre-Collisio n System Radar
In Self Calibration Unavailable See
Owner’s Manual” is displayed.Check whether there is attached
materials on the radar sensor and
radar sensor cover, and if there is,
remove it.