2021 TOYOTA PRIUS ECO mode

4405-1. Using the air conditioning system and defogger
PRIUS_OM_OM47E09U_(U)■
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 ai r 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.
■
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 1 5 minutes.
■
Eco score (A/C score)
 P. 1 3 1

PRIUS_OM_OM47E09U_(U)
4435-1. Using the air conditioning system and defogger
5
Interior features
■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.
■ 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 dependin g 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, helpin g to reduce
odors that occur when starting the vehicle.
■ Operation of the air conditioning system in the air conditionin g eco
mode
● In the air conditioning eco mode, the air conditioning system i s controlled as
follows to prioritize fuel efficiency:
• Engine speed and compressor operation controlled to restrict h eating/
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 condi tioning eco
mode will be turned on automatically. Even in this case, the ai r conditioning
eco mode can be turned off by pressing . ( P. 347)
■ When the outside tempera ture falls to nearly 32F (0 C)
The dehumidification function may not operate even when is pressed.

446
PRIUS_OM_OM47E09U_(U)
5-1. Using the air conditioning system and defogger
Automatic air conditioning system
(vehicles with 11.6-inch display)
The following informations are displayed on the navigation syst em
screen.
Temperature setting
Fan speed setting
Automatic mode setting
Airflow mode setting
Front seat concentrated airflow
mode (S-FLOW) setting
Air conditioning eco mode set-
ting
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

PRIUS_OM_OM47E09U_(U)
4495-1. Using the air conditioning system and defogger
5
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 the recirculated air mode is
selected.
■
Air conditioning eco mode
The air conditioning system is c ontrolled with low fuel consumption
prioritized such as re ducing fan speed, etc.
Select on the air condit ioning 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 i s
on.
Other functions

4505-1. Using the air conditioning system and defogger
PRIUS_OM_OM47E09U_(U)■
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 ai
r flow and
temperature up.
The switch indicator illuminates when the defoggers are on.
To return to the previous mode, press again when the windshiel d 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 .
Defoggers switch between on and off each time is pressed.
The switch indicator illuminates when the defoggers are on.
The defoggers will automatically turn off after approximately 1 5 minutes.
■
Eco score (A/C score)
 P. 1 4 8

PRIUS_OM_OM47E09U_(U)
4535-1. Using the air conditioning system and defogger
5
Interior features
■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.
■ 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 dependin g 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, helpin g to reduce
odors that occur when starting the vehicle.
■ Operation of the air conditioning system in the air conditionin g eco
mode
● In the air conditioning eco mode, the air conditioning system i s controlled as
follows to prioritize fuel efficiency:
• Engine speed and compressor operation controlled to restrict h eating/
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 condi tioning eco
mode will be turned on automatically. Even in this case, the ai r conditioning
eco mode can be turned off by selecting . ( P. 347)
■ When the outside tempera ture falls to nearly 32F (0 C)
The dehumidification function may not operate even when is
selected.

480
PRIUS_OM_OM47E09U_(U)
5-4. Using the other interior features
■The wireless charger can be operated when
The power switch is in ACCESSORY or ON mode.
■ Usable portable devices
Qi standard wireless charge standard can be used on compatible devices.
However, not all Qi standard devices and compatibility are guar anteed.
Starting with mobile phones and smart phones, it is aimed for l ow power elec-
trically supplied portable devices of no more than 5W.
■ When covers and accessories are attached to portable devices
Do not charge in situations where cover and accessories not able to handle
Qi are attached to the portable device. Depending on the type o f cover and
accessory, it may not be possible to charge. When charging is not performed
even with the portable device placed on the charge area, remove the cover
and accessories.
■ While charging, noise enters the AM radio
Turn off the wireless charger and confirm that the noise has decreased. If the
noise decreases, continuously pushing the power supply switch o f the wire-
less charger for 2 seconds, the frequency of the charger can be changed and
the noise can be reduced.
Also, on that occasion, the operation indicator light will flas h orange 2 times.
■ Important points of the wireless charger
●If the electronic key cannot be detected within the vehicle int erior, charging
cannot be done. When the door is opened and closed, charging ma y be
temporarily suspended.
● When charging, the wireless charging device and portable device will get
warmer, however this is not a malfunction.
When a portable device gets warm while charging, charging may s top due
to the protection function on the portable device side. In this case, when the
temperature of the portable device drops significantly, charge again.
■ Operation sounds
When the power supply is turned on, while searching for the portable device a
sound will be produced, however this is not a malfunction.

PRIUS_OM_OM47E09U_(U)
4976-1. Maintenance and care
6
Maintenance and care
■Note for a smart key system
If the door handle becomes wet while the electronic key is within the effective
range, the door may lock and unlock repeatedly. In that case, f ollow the fol-
lowing correction procedures to wash the vehicle:
● Place the key in a position 6 ft. (2 m) or more separate from t he vehicle
while the vehicle is being washed. (Take care to ensure that th e key is not
stolen.)
● Set the electronic key to battery-saving mode to disable the sm art key sys-
tem. ( P. 198)
■ Wheels and wheel ornaments
●Remove any dirt immediately by using a neutral detergent.
● Wash detergent off with water immediately after use.
● To protect the paint from damage, make sure to observe the following pre-
cautions.
• Do not use acidic, alkaline or abrasive detergent
• Do not use hard brushes
• Do not use detergent on the wheels when they are hot, such as after driv-
ing or parking in hot weather
■ Bumpers
Do not scrub with abrasive cleaners.
■ Front side windows water-repellent coating (if equipped)
The following precautions can extend the effectiveness of the water-repellent
coating.
●Remove any dirt, etc. from the front side windows regularly.
● Do not allow dirt and dust to accumulate on the windows for a long period.
Clean the windows with a soft, damp cloth as soon as possible.
● Do not use wax or glass cleaners that contain abrasives when cleaning the
windows.
● Do not use any metallic objects to remove condensation build up.
■ Plated portions
If dirt cannot be removed, clean the parts as follows:
●Use a soft cloth dampened with an approximately 5% solution of neutral
detergent and water to clean the dirt off.
● Wipe the surface with a dry, soft cloth to remove any remaining moisture.
● To remove oily deposits, use alcohol wet wipes or a similar pro duct.