2017 TOYOTA MIRAI Ion

2616-1. Using the air conditioning system and defogger
6
Interior features
MIRAI_OM_USA_OM62023U■
Defogging the windshield
Defoggers are used to defog the windshield and front side win-
dows.
Press .
Set the outside/recirculated air mode button to the outside air mode if
the recirculated air mode is used. (It may switch automatically.)
To defog the windshield and the side windows early, turn the air flow and
temperature up.
To return to the previous mode, press again when the windshield
is defogged.
■
Defogging the rear window and outside rear view mirrors
Defoggers are used to defog the rear window, and to remove rain-
drops, dew and frost from the outside rear view mirrors.
Press .
The indicator comes on when the defogging the rear window and out-
side rear view mirrors is on.
The defoggers will automatically turn off after a period of time.
■
Windshield wiper de-icer
This feature is used to prevent ice from building up on the wind-
shield and wiper blades.
Press .
The indicator comes on when
the windshield wiper de-icer is
on.
The windshield de-icer will auto-
matically turn off after a period
of time.

2626-1. Using the air conditioning system and defogger
MIRAI_OM_USA_OM62023U■
Location of air outlets
The air outlets and air volume
change according to the
selected airflow mode.
■Adjusting the position of and opening and closing the air out-
lets
Direct air flow to the left or right, up or down.
Turn the knob to open or close the vent.
■Using automatic mode
Fan speed is adjusted automatically 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 is pressed.
Air outlets
FrontRear

2636-1. Using the air conditioning system and defogger
6
Interior features
MIRAI_OM_USA_OM62023U■
Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high.
Turning on will dehumidify the air from the outlets and defog the wind-
shield effectively.
● If you turn off, the windows may fog up more easily.
● The windows may fog up if the recirculated air mode is used.
■ Windshield fog detection function
When automatic mode is set, the humidity sensor ( →P. 266) detects fog on
the windshield and controls the air conditioning system to prevent fog.
■ Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic, set the out-
side/recirculated air mode button to recirculated air mode. This is effective in
preventing outside air from entering the vehicle interior. During cooling oper-
ation, setting the recirculated air mode will also cool the vehicle interior
effectively.
● Outside/recirculated air mode may automatically switch depending on the
temperature setting or the inside temperature.
■ Operation of the air conditioni ng system in ECO HEAT/COOL mode
● In ECO HEAT/COOL mode, the air conditioning system is controlled as fol-
lows to prioritize fuel efficiency:
• Fluid (heating) heater and compressor operation controlled to restrict
heating/cooling capacity
• Fan speed restricted when automatic mode is selected
● To improve air conditioning performance, perform the following operations:
• Adjust the temperature settings and fan speed
• Touch while in , and is set
• Touch while in , and ECO HEAT/COOL mode is canceled
■ Operation of the air conditio ning system in Eco drive mode
When ECO MODE switch is pressed, oper ations switch over to ECO HEAT/
COOL mode. ( →P. 183)
■ When the outside temperature exceeds 75°F (24°C) and the air condition-
ing system is on
● In order to reduce the air conditioning power consumption, the air condition-
ing system may switch to recirculated air mode automatically. This may also
reduce fuel consumption.
● Recirculated air mode is selected as a default mode when the power switch
is turned to ON mode.
● It is possible to switch to outside air mode at any time by pressing .

2646-1. Using the air conditioning system and defogger
MIRAI_OM_USA_OM62023U■
When the outside temperature is low
The dehumidification function may not operate even when is pressed.
■ Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air m\
ode.
● 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.
● To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time
immediately after the air conditioning system is started in automatic
mode.
■ Air conditioning filter
→P. 351
■ Changing the response of the switch for the air conditioning operation
panel
The reaction time, from when the switch is touched, can be changed by the
following operations.
The air conditioning cannot be operated during following operation.
Touch (decrease) and for about 3 seconds.
“01” ~ “05” is displayed in the monitor of the passenger side tempera-
ture.
Each time is touched, the reaction time switches over as follows.
01 (about 0.06 sec.) → 02 (about 0.08 sec.) → 03 (about 0.10 sec.) →
04 (about 0.12 sec.) → 05 (about 0.14 sec.)
With the desired setting displayed, without switching over the screen by
performing touch operations for about 5 seconds, when the power
switch is turned off the configuration is complete.
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2656-1. Using the air conditioning system and defogger
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Interior features
MIRAI_OM_USA_OM62023U■
Turning ON/OFF the switch operat ion sound for the air conditioning
operation panel
The operation sounds, when the switch is touched, can be turned ON/OFF by
the following operations.
The air conditioning cannot be operated during following operation.
Touch and for about 3 seconds.
“ON” or “OFF” is displayed in the monitor of the passenger side tem-
perature.
Each time is touched, the monitor switches over between ON/
OFF.
With “ON” or “OFF” displayed, without switching over the screen by per-
forming touch operations for about 5 seconds, when the power switch is
turned off the configuration is complete.
■ Turning ON/OFF the pop-up display when operating the switch for air
conditioning operation panel
The pop-up displays, when the switch is touched, can be turned ON/OFF by
the following operations.
The air conditioning cannot be operated during following operation. Touch and for about 3 seconds.
“ON” or “OFF” is displayed in the monitor of the passenger side tem-
perature.
Each time is touched, the monitor switches over between ON/
OFF.
With “ON” or “OFF” displayed, without switching over the screen by per-
forming touch operations for about 5 seconds, when the power switch is
turned off the configuration is complete.
■ Customization
Settings (e.g. A/C automatic mode switch operation) can be changed.
(Customizable features →P. 439)
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2666-1. Using the air conditioning system and defogger
MIRAI_OM_USA_OM62023U
WARNING
■To prevent the windshield from fogging up
● Do not use during cool air operation in extremely humid weather.
The difference between the temperature of the outside air and that of the
windshield can cause the outer surface of the windshield to fog up, block-
ing your vision.
■ To prevent burns
● Do not touch the rear view mirror surfaces when the outside rear view mir-
ror defoggers are on.
● Do not touch the glass at lower part of the windshield or to the side of the
front pillars when the windshield wiper de-icer is on.
NOTICE
■ Humidity sensor
■ To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the
fuel cell system is off.
● 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 defogging.
In order to detect fog on the windshield, a
sensor which monitors the temperature
of the windshield, the surround humidity,
etc., is installed. ( →P. 263)
Follow these points to avoid damaging
the sensor:
● Do not disassemble the sensor
● Do not spray the glass cleaner on the
sensor or subject it to strong impacts
● Do not stick anything on the sensor

2676-1. Using the air conditioning system and defogger
6
Interior features
MIRAI_OM_USA_OM62023U
Heated steering wheel/seat heaters
Turn the heated steering wheel
on/off
The indicator light comes on when
the heated steering wheel is oper-
ating.
Heated steering wheel and seat heaters heat the side grips of the
steering wheel and seats, respectively.
WARNING
● Care should be taken to prevent injury if anyone in the following categories
comes in contact with the steering wheel and seats when the heater is on:
• Babies, small children, the elderly, the sick and the physically chal-
lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs, cold remedies, etc.)
● Observe the following precautions to prevent minor burns or overheating,
• Do not use seat heater more than necessary.
• Do not cover the seat with a blanket or cushion when using the seat
heater.
NOTICE
●Do not put heavy objects that have an uneven surface on the seat and do
not stick sharp objects (needles, nails, etc.) into the seat.
● To prevent 12-volt battery discharge, do not use the functions when the
fuel cell system is off.
Heated steering wheel

2686-1. Using the air conditioning system and defogger
MIRAI_OM_USA_OM62023U
■Operation condition
The heated steering wheel can be used when the power switch is in ON
mode.
■ Timer
The heated steering wheel will automatically turn off after about 30 minutes.
Front seats
Each time the switch is touched,
the intensity of the seat heater
changes:
Hi (strong) → Lo (weak) → Off
During operations, the operation
conditions are displayed.
Rear seats
HI: Strong
The indicator light comes on.
Low: Weak
The indicator light comes on.
■Operating condition
The seat heaters can be used when the power switch is in ON mode.
■ When not in use (rear seats)
Turn the seat heater off by returning the switch to its level position.
The indicator light turns off.
Seat heaters