Using the air conditioning system and defogger -> Automatic air conditioning system (vehicles with 7-inch display) for Your Toyota Prius 4 Door Fourth Generation (2016-2022)

424  
5-1. Using the air conditioning system and defogger  
Automatic air conditioning system  
(vehicles with 7-inch display)  
Air outlets and fan speed are automatically adjusted according  
to the temperature setting.  
Air conditioning controls  
Adjusting the temperature setting  
Move the temperature setting  
knob upwards to increase the  
temperature and downwards to  
decrease the temperature.  
If  
is not pressed, the sys-  
tem will blow ambient tempera-  
ture air or heated air.  
Temperature  
setting knob  
Fan speed setting  
Move the fan speed setting  
knob upwards to increase the  
fan speed and downwards to  
decrease the fan speed.  
The fan speed is shown on the  
display. (7 levels)  
Fan speed  
setting knob  
Press  
to turn the fan off.  
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425  
5-1. Using the air conditioning system and defogger  
Change the airflow mode  
Move the airflow change knob  
upwards or downwards to  
change the airflow mode.  
The air outlets used are  
switched each time the knob is  
operated.  
1
Air flows to the upper body  
2
Air flows to the upper body  
and feet  
3
4
Air flows to the feet  
Airflow change  
knob  
Air flows to the feet and the  
windshield defogger oper-  
ates  
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426  
S-FLOW mode  
5-1. Using the air conditioning system and defogger  
In S-FLOW mode, priority for the airflow is given to the front seats,  
reducing the airflow and air conditioning effect on the rear seats.  
When a passenger is not detected in the front passenger seat,  
depending on the set temperature and ambient temperature, prior-  
ity 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.  
The following S-FLOW modes are available:  
Automatic S-FLOW mode  
The system determines whether or not a rear passenger is in the  
vehicle by the opening and closing of a rear door. When a rear pas-  
senger is determined to be in the vehicle, S-FLOW mode will be  
automatically disabled.  
To enable S-FLOW mode again, press  
and enter manual  
S-FLOW mode. (P. 430)  
The  
indicator will illuminate when S-FLOW mode is enabled.  
Manual S-FLOW mode  
When  
is pressed, S-FLOW mode will be manually enabled/  
disabled. (P. 430)  
The  
indicator will illuminate when S-FLOW mode is enabled.  
When the power switch is turned to ON mode, the system is oper-  
ated in automatic S-FLOW mode.  
Other functions  
Switching between outside air and recirculated air modes  
(P. 427)  
Defogging the windshield (P. 428)  
Defogging the rear window and outside rear view mirrors  
(P. 428)  
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5-1. Using the air conditioning system and defogger  
Using automatic mode  
1
2
Press  
.
Adjust the temperature setting. (P. 424)  
3
Press  
.
The cooling and dehumidification function switches between on and  
off each time  
is pressed.  
4
To stop the operation, press  
.
Automatic mode indicator  
If the fan speed setting or air flow modes are operated, the  
indicator goes off. However, automatic mode for functions other  
than that operated is maintained.  
5
Other functions  
Switching between outside air and recirculated air modes  
Press  
.
The mode switches between outside air mode and recirculated air mode  
each time  
is pressed.  
The  
indicator illuminates when the recirculated air mode is  
selected.  
Air conditioning eco mode  
The air conditioning system is controlled with low fuel consumption  
prioritized such as reducing fan speed, etc.  
Press  
.
The air conditioning eco mode switches between on and off each time  
is pressed.  
“ECO” is displayed in the air conditioning control panel display when the  
air conditioning eco mode is on.  
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428  
5-1. Using the air conditioning system and defogger  
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 the defoggers are on.  
The defoggers will automatically turn off after approximately 15 minutes.  
Eco score (A/C score)  
P. 129  
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429  
5-1. Using the air conditioning system and defogger  
Air outlets  
Location of air outlets  
The air outlets and air volume  
change according to the  
selected airflow mode.  
Adjusting the air flow direction  
Direct air flow to the left or right,  
up or down.  
5
Opening and closing the air outlets  
Left side outlet/right side outlet  
Center outlets  
1
1
2
Open the vent  
Close the vent  
Open the vent  
Close the vent  
2
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430  
5-1. Using the air conditioning system and defogger  
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.  
Setting confirmation screen  
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.  
S-FLOW mode operation  
When  
is pressed, the S-FLOW  
mode status is displayed on the multi-  
information display.  
Changing from manual S-FLOW mode to automatic S-FLOW mode  
1
Press  
to disable S-FLOW mode.  
The  
indicator will go off.  
2
3
Turn the power switch off.  
After 60 minutes have elapsed, change the power switch to ON mode.  
Changing settings using the multi-information display  
The air conditioning system settings can be changed on the  
the multi-information display. (P. 145)  
screen of  
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.  
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431  
5-1. Using the air conditioning system and defogger  
Windshield fog detection function  
When automatic mode is set, the humidity sensor (P. 433) detects fog on  
the windshield and controls the air conditioning system to prevent fog.  
When driving on dusty roads  
Close all windows. If dust thrown up by the vehicle is still drawn into the vehi-  
cle after closing the windows, it is recommended that the air intake mode be  
set to outside air mode and the fan speed to any setting except off.  
Outside/recirculated air mode  
Setting to the recirculated air mode temporarily is recommended in prevent-  
ing dirty air from entering the vehicle interior and helping to cool 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.  
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:  
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• 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. 336)  
When the outside temperature falls to nearly 32F (0C)  
The dehumidification function may not operate even when  
is pressed.  
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5-1. Using the air conditioning system and defogger  
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 immediately after the air conditioning  
system is started in automatic mode.  
Air conditioning filter  
P. 536  
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.  
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.  
To prevent burns  
Do not touch the rear view mirror surfaces when the outside rear view mirror  
defoggers are on.  
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5-1. Using the air conditioning system and defogger  
NOTICE  
Humidity sensor (if equipped)  
In order to detect fog on the windshield, a  
sensor which monitors the temperature  
of the windshield, the surround humidity,  
etc. is installed. (P. 431)  
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  
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.  
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