TOYOTA PRIUS PRIME 2017 2.G Owners Manual

PRIUS PRIME_OM_OM47A88U_(U)
4916-1. Using the air conditioning system and defogger
6
Interior features
■Defogging the windshield
Defoggers are used to defog the windshield and front side win-
dows.
Press .
Set to 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.
The indicator illuminates when the defoggers are on.
To return to the previous mode, press again when the wind-
shield is defogged. Also, turning the power switch off during operation
can return to the previous mode.
■
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 .
Defoggers switch between on and off each time is pressed.
The indicator illuminates when defoggers are on.
The defoggers will automatically turn off after a period of time.
■
Eco score (A/C score)
→ P. 2 1 4

4926-1. Using the air conditioning system and defogger
PRIUS PRIME_OM_OM47A88U_(U)■
Location of air outlets
The air outlets and air volume
change according to the
selected airflow mode.
■Adjusting the position of the air outlets
Direct air flow to the left or right,
up or down.
■Opening and closing the air outlets
Air outlets
Left side outlet/right side outletCenter outlets
Open the vent
Close the vent Open the vent
Close the vent
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PRIUS PRIME_OM_OM47A88U_(U)
4936-1. Using the air conditioning system and defogger
6
Interior features
■Heating
●In HV mode, the gasoline engine may operate in order to exhaust heat from
the engine coolant via the heater.
● In EV mode, heating is done by a heat pump system.
• When the outside temperature is low or it is snowing, compared to con-
ventional vehicles, heating may be less effective and warm air may not
come out.
• If frost has formed on the outside heat exchanger, the heating perfor- mance will decline. The frost can be removed from the outside heat
exchanger by operating the Remote Air Conditioning System before driv-
ing ( →P. 509). When frosted over, the heating operation of the Remote
Air Conditioning System starts after defrosting.
• When is turned on, the heating is controlled optimally. Therefore, the set heating performance may not be achieved even if the fan speed
setting is increased.
● In the following situations the gasoline engine may operate in order to
exhaust heat from the engine coolant via the heater even in EV mode.
• The outside temperature is approximately -10 °C or low
• is operating
■ 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.
■ Water droplets during air conditioning operation• When the outside heat exchanger is
frosted over, fan speed declines and it
may become harder to heat the inte-
rior. However, it is not a malfunction.
In this situation, the air temperature
from the outlets may not change even
though the set temperature is raised.
The outside heat exchanger, accumulator
and air conditioning piping may incur con-
densation or frost may form. During or
after the air conditioning operation, water
droplets may fall from the vehicle. How-
ever, it is not a malfunction.
Outside heat exchanger
Outside heat exchanger
Accumulator

4946-1. Using the air conditioning system and defogger
PRIUS PRIME_OM_OM47A88U_(U)■
Setting confirmation screen
■ S-FLOW mode operation
●In automatic mode, S-FLOW mode will be turned off if a rear door has been
opened and closed. To activate S-FLOW mode again, press .
■ Changing settings using the multi-information display
The air conditioning system settings can be changed on the screen of
the multi-information display. ( →P. 226)
■ 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
windshield 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. 497) detects fog on
the windshield and controls the air conditioning system to prevent fog. When changing the settings of the air
conditioning system, the setting confirma-
tion screen is shown as a pop-up on the
multi-information display.
Press of the meter control switches to
go back to the previous screen.
● When is pressed, the S-FLOW
mode status is displayed on the multi-
information display.

PRIUS PRIME_OM_OM47A88U_(U)
4956-1. Using the air conditioning system and defogger
6
Interior features
■Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic, set
to the recirculated air mode. This is effective in preventing outside air from
entering the vehicle interior. During cooling operation, setting the recircu-
lated 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.
■ Fresh air intake system while parking
When parking, the system automatically switches to outside air mode to
encourage better air circulation throughout the vehicle, helping to reduce
odors that occur when starting the vehicle.
■ Operation of the air conditioning system in the air conditioning eco
mode
●In the air conditioning eco mode, the air conditioning system is controlled as
follows to prioritize fuel efficiency:
• Engine speed 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 fan speed
• Adjust the temperature setting
• Turn off the air conditioning eco mode
● When the driving mode is set to Eco driving mode, the air conditioning eco
mode will be turned on automatically. Even in this case, the air conditioning
eco mode can be turned off by pressing . ( →P. 406)
■ When the outside temperat ure falls to nearly 32°F (0°C)
The dehumidification function may not operate even when is pressed.

4966-1. Using the air conditioning system and defogger
PRIUS PRIME_OM_OM47A88U_(U)■
Ventilation and air conditioning odors
●To let the fresh air in, set the air conditioning 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 suppress odors that occur when the air conditioning system
starts, fresh air is automatically taken in when parked.
● To reduce potential odors from occurring, the start timing of the blower may
be delayed for a short period of time i mmediately after the air conditioning
system is started in automatic mode.
■ Air conditioning filter
→P. 620
■ Customization
Settings (e.g. A/C auto switching operation) can be changed. (Customizable
features: →P. 732)
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 surf aces when the outside rear view mirror
defoggers are on.
● 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.

PRIUS PRIME_OM_OM47A88U_(U)
4976-1. Using the air conditioning system and defogger
6
Interior features
NOTICE
■Humidity sensor
● Do not spray the glass cleaner on the sensor or subject it to strong impacts
● Do not stick anything on the sensor
■ To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the
hybrid system is off.
■ Air outlets
The air outlets become hot when used for heating. Therefore, use caution
and adjust the air outlets accordingly.
In order to detect fog on the windshield, a
sensor which monitors the temperature
of the windshield, the surround humidity,
etc. is installed. ( →P. 494)
Follow these points to avoid damaging
the sensor:
● Do not disassemble the sensor

498
PRIUS PRIME_OM_OM47A88U_(U)
6-1. Using the air conditioning system and defogger
Automatic air conditi oning system (vehi-
cles with 11.6-inch display)
The following informations are displayed on the navigation system
screen.
Temperature setting
Fan speed setting
Automatic mode setting
Airflow mode setting
S-FLOW mode setting
Air conditioning eco mode
setting
A/C setting
Outside/recirculated air mode setting
Air outlets and fan speed are automatically adjusted according
to the temperature setting.
Air conditioner information area
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PRIUS PRIME_OM_OM47A88U_(U)
4996-1. Using the air conditioning system and defogger
6
Interior features
The air conditioning control
screen can be displayed by touch-
ing the air conditioner information
area on the navi gation system
screen.
■Adjusting the temperature setting
Press “ ∧” on to increase the temperature and “ ∨” to decrease
the temperature.
■Adjusting the fan speed setting
Select on the air conditioning control screen to increase the
fan speed and to decrease the fan speed.
The fan speed is shown on the control screen. (7 levels)
Select to turn the fan off.
■
Change the airflow mode
To change the air outlets, select any switch on the air conditioning
control screen.
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 oper-
ates
Air conditioning control screen
Air conditioning controls
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5006-1. Using the air conditioning system and defogger
PRIUS PRIME_OM_OM47A88U_(U)■
S-FLOW mode
In S-FLOW mode, priority for the ai
rflow is given to the front seats,
reducing the airflow and air conditio ning effect on the rear seats.
If a passenger is not detected in the front passenger seat, priority
for the airflow will be given to the driver’s seat only.
However, air will always be blown from the side outlet of the front pas-
senger seat.
S-FLOW mode will be activated autom atically according to the set
temperature, outside temperature, etc. ( →P. 505)
The S-FLOW mode can be turned on/off manually by selecting on
the air conditioning control screen.
The indicator illuminates when in S-FLOW mode.
■
Other functions
● Switching between outside ai r and recirculated air modes
( → P. 501)
● Defogging the windshield ( →P. 501)
● Defogging the rear window and outside rear view mirrors
(→ P. 502)
Select on the air conditioning control screen.
Adjust the temperature setting. ( →P. 499)
To stop the operation, select .
■Automatic mode indicator
If the fan speed setting or ai r flow modes are operated, the
indicator goes off. Howeve r, automatic mode for func-
tions other than that operated is maintained.
Using automatic mode
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