2017 TOYOTA PRIUS Owners Manual

PRIUS_OM_OM47B54U_(U)
5136-1. Using the air conditioning system and defogger
6
Interior features
Press .
Adjust the temperature setting.
To stop the operation, press .
■Automatic mode indicator
If the fan speed setting or air fl ow modes are operated, the auto-
matic mode indicator goes off. However, automatic mode for func-
tions other than that operated is maintained.
When changing the settings of the
air conditioning system, the set-
ting confirmation screen is shown
as a pop-up on the multi-informa-
tion display.
Press to go back to the previ-
ous screen.
Using automatic mode
Multi-information display air conditioning settings screen
1
2
3

5146-1. Using the air conditioning system and defogger
PRIUS_OM_OM47B54U_(U)■
Switching between outside air
and recirculated air modes
Press .
The mode switches between outside air mode (indicator off) and recir-
culated air mode (indicator on) each time is pressed.
■
Fresh air intake system while parking
When parking, the system automatically switches to fresh air intake
mode to encourage better air circulation throughout the vehicle,
helping to reduce odors that occur when starting the vehicle.
■Using the Climate control
Press .
When “ECO” is displayed on the air conditioning screen, the air
conditioning is controlled with lo w fuel consumption prioritized such
as reducing fan speed, etc.
The Climate control is turned on when the power switch is turned to ON
mode while the driving mode is Eco drive mode.
Pressing again will cancel climate control.
Other functions

PRIUS_OM_OM47B54U_(U)
5156-1. 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.
To return to the previous mode, press again when the wind-
shield 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 defoggers will automatically turn off after a period of time.
■
Eco score (A/C score)
→ P. 1 2 1

5166-1. Using the air conditioning system and defogger
PRIUS_OM_OM47B54U_(U)■
Location of air outlets
The air outlets and air volume
changes 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
Right side outletCenter outlet/left side outlet
Open the vent
Close the vent Open the vent
Close the vent
1
2
1
2

PRIUS_OM_OM47B54U_(U)
5176-1. Using the air conditioning system and defogger
6
Interior features
■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.
■ S-FLOW mode operation
In automatic mode, when the rear seat doors are opened or closed, S-FLOW
mode will not operate and the indicator light turns off. When the
is pressed, the system returns to S-FLOW mode.
■ Changing settings of the Automatic air conditioning system
The air conditioning system settings can be changed on the screen
(→P. 135) of the multi-information display.
■ Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high.
Pressing 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. 520) detects fog on
the windshield and controls the air conditioning system to prevent fog. When is pressed, the S-FLOW
mode status is displayed on the multi-
information display and the indica-
tor light illuminates.

5186-1. Using the air conditioning system and defogger
PRIUS_OM_OM47B54U_(U)■
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.
■ Operation of the air conditio ning system in Eco drive mode
● In Eco drive mode, the air conditioning system is controlled as follows to pri-
oritize 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 Eco drive mode
● Even when the drive mode is set to Eco drive mode, the air conditioning eco
mode can be turned off by pressing .
■ When the outside temperat ure falls to nearly 32°F (0°C)
The dehumidification function may not operate even when is pressed.
■ 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. 620
■ Customization
Settings (e.g. A/C Auto switch operation) can be changed.
(Customizable features: →P. 748)

PRIUS_OM_OM47B54U_(U)
5196-1. Using the air conditioning system and defogger
6
Interior features
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.

5206-1. Using the air conditioning system and defogger
PRIUS_OM_OM47B54U_(U)
NOTICE
■Humidity sensor (if equipped)
● 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. 517)
Follow these points to avoid damaging
the sensor:
● Do not disassemble the sensor