Page 497 of 784
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
Page 498 of 784
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
1
2
3
4
5
6
7
8
Page 499 of 784
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
1
2
3
4
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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
1
2
3
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PRIUS PRIME_OM_OM47A88U_(U)
5016-1. Using the air conditioning system and defogger
6
Interior features
■Switching between outside air and recirculated air modes
Select on the air conditioning control screen.
The mode switches between outside air mode and recirculated air mode
each time is selected.
The indicator illuminates when recirculated air mode is
selected.
■
Air conditioning eco mode
The air conditioning system is cont rolled with low fuel consumption
prioritized such as reducing fan speed, etc.
Select on the air conditioning control screen.
The air conditioning eco mode switches between on and off each time
is selected.
The indicator illuminates when the air conditioning eco mode is
on.
■
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 switch indicator illuminates when the defoggers are on.
To return to the previous mode, press again when the windshield is
defogged. Also, turning the power switch off during operation can return
to the previous mode.
Other functions
Page 502 of 784
5026-1. Using the air conditioning system and defogger
PRIUS PRIME_OM_OM47A88U_(U)■
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 switch 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
■Location of air outlets
The air outlets and air volume
change according to the
selected airflow mode.
Air outlets
Page 503 of 784
PRIUS PRIME_OM_OM47A88U_(U)
5036-1. Using the air conditioning system and defogger
6
Interior features
■Adjusting the position of the air outlets
Direct air flow to the left or right,
up or down.
■Opening and closing the air outlets
Left side outlet/right side outletCenter outlets
Open the vent
Close the vent Open the vent
Close the vent
1
2
1
2
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5046-1. Using the air conditioning system and defogger
PRIUS PRIME_OM_OM47A88U_(U)
■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 of 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. There- fore, 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 extremely 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