2023 TOYOTA MIRAI Owners Manual

3376-1. Using the air conditioning system and defogger
Owners Manual_USA_M62064_en
6
Interior features
1 Press the “AUTO” switch.
2 Adjust the temperature set-
ting.
3 To stop the operation, press
the “OFF” switch.
If the fan speed setting or air
flow modes are operated, the
automatic mode indicator goes
off. However, automatic mode
for functions other than that
operated is maintained.
■Using automatic mode
Fan speed is adjusted automati-
cally according to the temperature
setting and the ambient conditions. Therefore, the fan may stop for a
while until warm or
cool air is ready
to flow immediately after the auto-
matic mode switch is pressed.
To turn on the “SYNC” mode,
press the “SYNC” switch.
The driver’s side temperature con-
trol knob can be used to adjust the
temperature for the driver’s and
passenger’s side. To enter individ-
ual mode, operate the passenger’s
side temperature control knob or
press the “SYNC” switch again.
When the “SYNC” mode is on, the
indicator illuminates on the “SYNC”
switch.
This feature is used to prevent
ice from building up on the wind-
shield and wiper blades.
Press the switch to turn the sys-
tem on/off.
The indicator comes on when the
system is on.
The windshield wiper de-icer will
automatically turn off after approxi-
mately 15 minutes.
WARNING
■When the outside rear view
mirror defoggers are operat-
ing
Do not touch the rear view mirror
surfaces when the outside rear
view mirror defoggers are on.
NOTICE
■To prevent 12-volt battery dis-
charge
Do not leave the air conditioning
system on longer than necessary
when the fuel cell system is off.
■When repairing/replacing
parts of the air conditioning
system
Have repair/replacement per-
formed by your Toyota dealer.
When a part of the air conditioning
system, such as the evaporator, is
to be replaced, it must be
replaced with a new one.
Using automatic mode
Adjusting the temperature
for driver and passenger
seats simultaneously
(“SYNC” mode)
Windshield wiper de-icer
(if equipped)

3386-1. Using the air conditioning system and defogger
Owners Manual_USA_M62064_en
■Location of air outlets
The air outlets and air volume
change according to the
selected air flow mode.
■Adjusting the air flow direc-
tion and opening/closing
the air outlets
Front
1 Direct air flow to the left or
right, up or down
2 Open the vent
3 Close the vent
Rear
1 Direct air flow to the left or
right, up or down
2 Open the vent
3 Close the vent
WARNING
■To prevent burns
Do not touch the glass at lower
part of the windshield or to the
side of the fron t pillars when the
windshield wiper deicer is on.
Air outlet layout and oper-
ations

3396-1. Using the air conditioning system and defogger
Owners Manual_USA_M62064_en
6
Interior features
WARNING
■To not interrupt the wind-
shield defogger from operat-
ing
Do not place anything on the
instrument panel which may cover
the air outlets. Otherwise, air flow
may be obstructed, preventing the
windshield defoggers from defog-
ging.

3406-1. Using the air conditioning system and defogger
Owners Manual_USA_M62064_en
Multimedia display
“AUTO” switch
Windshield defogger switch
Fan speed increase switch
“CLIMATE” switch
Right-hand side temperature control switches
“COMFORT” switch
*
Fan speed decrease switch
Rear window and outside rear view mirror defoggers switch
“OFF” switch
Left-hand side temperature control switches
Automatic air conditioning system (Type B)
Air outlets and fan speed are automatically adjusted accord-
ing to the temperature setting.
The air conditioning system can be operated using the air
conditioning control panel and air conditioning control
screen.
Air conditioning controls

3416-1. Using the air conditioning system and defogger
Owners Manual_USA_M62064_en
6
Interior features
*: If equipped
■Adjusting the temperature
setting
Press of the temperature
control switches on the air con-
ditioning control panel to
increase the temperature.
Press of the temperature
control switches on the air con-
ditioning control panel to
decrease the temperature.
If the switch is pr essed and held or
selected and held, the temperature
will continuously change.
If the “A/C” indicat or is turned off,
the system will blow ambient tem-
perature air or heated air. ( P.346)
■Setting the fan speed
Press the fan speed increase
switch on the air conditioning
control panel to increase the fan
speed.
Press the fan speed decrease
switch on the air conditioning
control panel to decrease the
fan speed.
Press the “OFF” switch on the air
conditioning control panel to turn
the fan off.
■Change the airflow mode
Select the airflow mode control
switch on the air conditioning
control screen.
The airflow mode changes each
time the switch is selected.
: Air flows to the upper body
: Air flows to the upper body
and feet
: Air flows to the feet
: Air flows to the feet and the
windshield defogger operates
■Switching between outside
air and recirculated air
modes
Select the outside/recirculated
air mode switch on the air condi-
tioning control screen.
The mode switches between out-
side air mode and recirculated air
mode each time the switch is
selected.
When recirculated air mode is
selected, the indicator illuminates
on the outside/recirculated air
mode switch.
■Set cooling and dehumidifi-
cation function
Select the “A/C” switch on the
air conditioning control screen.
When the function is on, the indica-
tor illuminates on the “A/C” switch.
■Eco air conditioning mode
The air conditioning is controlled
with low fuel consumption priori-
tized such as reducing fan
speed, etc.
Select the eco air conditioning
mode switch on the air condi-
tioning control screen.

3426-1. Using the air conditioning system and defogger
Owners Manual_USA_M62064_enWhen the eco air conditioning
mode is on, the indicator illumi-
nates on the eco air conditioning
mode switch.
■Defogging the windshield
Defoggers are used to defog the
windshield and front side win-
dows.
Press the windshield defogger
switch on the air conditioning
control panel.
Set the outside/recirculated air
mode switch to outside air mode if
t h e r e c i r c u l a t e d a i r m o d e i s u s e d . ( I t
may switch automatically.)
To defog the windshield and the
side windows quickly, turn the air
flow and temperature up.
To return to the previous mode,
press the windshield defogger
switch again when the windshield is
defogged.
When the windshield defogger
switch is on, the indicator illumi-
nates on the windshield defogger
switch.
■Defogging the rear window
and outside rear view mir-
rors
Defoggers are used to defog the
rear window and to remove rain-
drops, dew and frost from the
outside rear view mirrors.
Press the rear window and out-
side rear view mirror defoggers
switch on the air conditioning
control panel.
The defoggers will automatically
turn off after 15 minutes. When the rear window and outside
rear view mirror defoggers switch is
on, the indicator
illuminates on the
rear window and outside rear view
mirror defoggers switch.
■When the outside temperature
exceeds 75°F (24°C) and the air
conditioning system is on
●In order to reduce the air condi-
tioning power consumption, the air
conditioning system may switch to
recirculated air mode automati-
cally.
This may also reduce fuel con-
sumption.
●Recirculated air mode is selected
as a default mode when the power
switch is turned to ON.
●It is possible to switch to outside
air mode at any time by selecting
the outside/recirculated air mode
switch.
■Fogging up of the windows
●The windows will easily fog up
when the humidity in the vehicle is
high. Turning the cooling and
dehumidification function on will
dehumidify the air from the outlets
and defog the windshield effec-
tively.
●If you turn the cooling and dehu-
midification function off, the win-
dows may fog up more easily.
●The windows may fog up if the
recirculated air mode is used.
■When driving on dusty roads
Close all windows. If dust thrown up
by the vehicle is still drawn into the
vehicle after closing the windows, it
is recommended that the air intake
mode be set to outside air mode and
the fan speed to a ny setting except
off.
■Windshield fog detection func-
tion (Vehicles with Toyota
Teammate Advanced Drive)
When automatic mode is set, the

3436-1. Using the air conditioning system and defogger
Owners Manual_USA_M62064_en
6
Interior features
humidity sensor detects fog on the
windshield and controls the air con-
ditioning system to prevent fog.
■Outside/recirculated air mode
●Setting to the r ecirculated air
mode temporarily is recom-
mended in preventing dirty air
from entering the vehicle interior
and helping to c ool the vehicle
when the outside air temperature
is high.
●Outside/recirculated air mode may
automatically switch depending on
the temperature setting or the
inside temperature.
■When the outside temperature
falls to nearly 32°F (0°C)
The dehumidification function may
not operate even when “A/C” switch
is selected.
■Operation of the air condition-
ing system in Eco drive mode
●In Eco drive mode, the air condi-
tioning system is controlled as fol-
lows to prioritize fuel efficiency:
• Fuel cell system and compressor
operation controlled to restrict
heating/cooling capacity
• Fan speed restr icted when auto-
matic mode is selected
●To improve air co nditioning perfor-
mance, perform the following
operations:
• Adjust the fan speed
• Turn off Eco drive mode ( P.320)
• Turn off Eco air conditioning mode
●When the driving mode is set to
Eco drive mode, the Eco air condi-
tioning mode will be turned on
automatically. Even in this case,
the Eco air conditioning mode can
be turned off by s electing the Eco
air conditioning mode switch.
■When cleaning the air condi-
tioning control panel
Touch switches may respond when
cleaning. Turn the power switch to
OFF before proceeding with clean-
ing.
■Ventilation and air conditioning
odors
●To let fresh air in, set the air condi-
tioning system to the outside air
mode.
●During use, various odors from
inside and outside the vehicle may
enter into and accumulate in the
air conditioning system. This may
then cause odor to be emitted
from the vents.
●In order to suppr ess odors that
occur when the air conditioning
system starts, the air flow mode
may change to blow air to the feet
or air may stop blowing for a short
period of time immediately after
the air conditioning system is
started in automatic mode.
●When parking, the system auto-
matically switches to outside air
mode to encourage better air cir-
culation throughout the vehicle,
helping to reduce odors that occur
when starting the vehicle.
■Air conditioning filter
 P.432
■Air conditioning system refrig-
erant
●A label regarding the refrigerant of
the air conditioning system is
attached to the h ood at the loca-
tion shown in the following illustra-
tion.

3446-1. Using the air conditioning system and defogger
Owners Manual_USA_M62064_en
●The meaning of each symbol on
the label are as follows:
■Customization
Some functions can be customized.
(Customizable features: P.523)
1 Press the “AUTO” switch on
the air conditioning control
panel.
2 Adjust the temperature set-
ting.
3 To stop the operation, press
the “OFF” switch on the air
conditioning control panel.
If the fan speed setting or air
flow modes are operated, the
automatic mode indicator goes
off. However, automatic mode
for functions other than that
operated is maintained.
Caution
Air conditioning sys-
tem
Air conditioning sys-
tem lubricant type
Requires registered
technician to service
air conditioning sys-
tem
Flammable refrigerant
WARNING
■To prevent the windshield
from fogging up
Do not use the windshield defog-
ger switch during cool air opera-
tion in extremely humid weather.
The difference between the tem-
perature of the outside air and
that of the windshield can cause
the outer surface of the wind-
shield to fog up, blocking your
vision.
■When the outside rear view
mirror defoggers are operat-
ing
Do not touch the rear view mirror
surfaces when the outside rear
view mirror defoggers are on.
NOTICE
■To prevent 12-volt battery dis-
charge
Do not leave the air conditioning
system on longer than necessary
when the fuel ce ll system is off.
■Humidity sensor (Vehicles
with Toyota Teammate
Advanced Drive)
In order to detect fog on the wind-
shield, a sensor which monitors
the temperature of the windshield,
the surround humidity, etc. is
installed.
Follow these points to avoid dam-
aging the sensor:
●Do not disassemble the sensor
●Do not spray glass cleaner on
the sensor or subject it to strong
impacts
●Do not stick anything on the
sensor
Using automatic mode