TOYOTA PRIUS 2021 Owners Manual (in English)

PRIUS_OM_OM47E09U_(U)
4515-1. Using the air conditioning system and defogger
5
Interior features
■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.
■Opening and closi ng 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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4525-1. Using the air conditioning system and defogger
PRIUS_OM_OM47E09U_(U)
■Using automatic mode
Fan speed is adjusted automatically according to the temperatur e 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 selected.
■ Setting confirmation screen
■ Operation of automatic airflow control
●In order to maintain a comfortable interior, airflow may be directed to seats
without passengers immediately after the hybrid system is start ed and at
other times depending on the outside temperature.
● After the hybrid system is started, if passengers move around i nside or
enter/exit the vehicle, the system cannot accurately detect the presence of
passengers and automatic airflow control will not operate.
■ Operation of manual airflow control
Even if the function is manually switched to directing airflow to only the front
seats, when a rear seat is occupied, it may automatically direc t airflow to all
seats.
■ To return to automatic airflow control
With the indicator off, turn the power switch off.
After 60 minutes or more elapse, turn the power switch to ON.
■ Front seat concentrated airfl ow mode (S-FLOW) operation
■ Changing settings using the multi-information display
The air conditioning system settings can be changed on the scr een of
the multi-information display. ( P. 146)
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 selected, the front seat
concentrated airflow mode (S-FLOW) sta-
tus is displayed on the multi-information
display.
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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.

4545-1. Using the air conditioning system and defogger
PRIUS_OM_OM47E09U_(U)■
When the outside temperature exceeds 75°F (24°C) and the air co ndition-
ing system is on
● In order to reduce the air conditioning power consumption, the air condition-
ing system may switch to recirculated air mode automatically. This may also
reduce fuel consumption.
● Recirculated air mode is selected as a default mode when the power switch
is turned to ON mode.
● It is possible to switch to outside air mode at any time by pressing
.
■ 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 m ay enter into
and accumulate in the air conditioning system. This may then ca use 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 t he 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. 548
■ Air conditioning system refrigerant
●The meaning of each symbol on the label are as follows:
●
A label regarding the refrigerant of the
air conditioning system is attached to the
hood at the location shown in the follow-
ing illustration.
Caution
Air conditioning system
Air conditioning system lubricant type
Requires registered technician to service air conditioning
system
Flammable refrigerant

PRIUS_OM_OM47E09U_(U)
4555-1. Using the air conditioning system and defogger
5
Interior features
■Customization
Settings (e.g. A/C auto switching operation) can be changed. (C ustomizable
features: P. 690)
WARNING
■ To prevent the windshield from fogging up
● Do not use during cool air operation in extremely humid weathe r. T h e
difference between the temperature of the outside air and that of the wind-
shield can cause the outer surface of the windshield to fog up, blocking
your vision.
■ To prevent burns
Do not touch the rear view mirror surfaces when the outside rea r view mirror
defoggers are on.
NOTICE
■ To prevent 12-volt b attery discharge
Do not leave the air conditioning system on longer than necessa ry when the
hybrid system is off.
■ When repairing/replacing parts of the air conditioning system
Have repair/replacement performed by your Toyota dealer. When a part of
the air conditioning system, such as the evaporator, is to be r eplaced, it
must be replaced with a new one.
■ Air outlets
The air outlets become hot when used for heating. Therefore, us e caution
and adjust the air outlets accordingly.
● 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.

456
PRIUS_OM_OM47E09U_(U)
5-1. Using the air conditioning system and defogger
Heated steering wheel/seat heaters
: If equipped
●Heated steering wheel
Warm up the grip of the steering wheel
● Seat heaters (front seats)
Warm up the seat upholstery
WARNING
●Care should be taken to prevent injury if anyone in the following categories
comes in contact with the steering wheel and seats when the hea ter is on:
• Babies, small children, the elderly, the sick and the physical ly chal-
lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sle eping
drugs, cold remedies, etc.)
● Observe the following precautions to prevent minor burns or ove rheating:
• Do not cover the seat with a blanket or cushion when using the seat
heater.
• Do not use seat heater more than necessary.
NOTICE
● Do not put heavy objects that have an uneven surface on the sea t and do
not stick sharp objects (needles, nails, etc.) into the seat.
● To prevent 12-volt battery discharge, do not use the functions when the
hybrid system is off.

PRIUS_OM_OM47E09U_(U)
4575-1. Using the air conditioning system and defogger
5
Interior features
Turns the heated steering wheel
on/off
The indicator in the instrument
cluster comes on when the heated
steering wheel is operating.
●The heated steering wheel can be used when the power switch is in ON
mode.
● The heated steering wheel will automatically turn off after about 30 minutes.
Heats the seat at low tempera-
ture (LO)
Heats the seat at high tempera-
ture (HI)
The indicator light comes on when
one side of the switch is pressed.
To stop the operation, gently press
the other side of the switch.
●The seat heaters can be used when the power switch is in ON mod e.
● When not in use, turn off the switch. The indicator light goes off.
Heated steering wheel (if equipped)
Seat heaters (if equipped)
Indicator
Indicator
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458
PRIUS_OM_OM47E09U_(U)
5-2. Using the interior lights
Interior lights list
Rear interior light ( P. 460)
Front personal/interior lights ( P. 459)
Shift lever lighting
Footwell lights (if equipped)
Front door courtesy lights1
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PRIUS_OM_OM47E09U_(U)
4595-2. Using the interior lights
5
Interior features
Front interior light
Vehicles without moon roofVehicles with moon roof
Turns the lights off
Turns the door position on
Turns the lights on Turns the door position on/off
Turns the lights on/off
Front personal lights
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Vehicles without moon roofVehicles with moon roof
Turns the lights on/off Turns the lights on/off

460
PRIUS_OM_OM47E09U_(U)
5-2. Using the interior lights
Turns the switch to the door
position (door linked)
Operation is linked with the front
interior light main switch. When the
switch is off, the light does not illu-
minate.
Turns the light on
■Illuminated entry system
The lights automatically turn on/off according to power switch mode, the pres-
ence of the electronic key, whether the doors are locked/unlocked, and
whether the doors are opened/closed.
■ To prevent the 12-volt batte ry from being discharged
If the interior lights remain on when the power switch is turned off, the light
will go off automatically after 20 minutes.
■ Customization
Settings (e.g. the time elapsed before the lights turn off) can be changed.
(Customizable features: P. 690)
Rear interior light
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NOTICE
To prevent 12-volt battery discharge, do not leave the lights o n longer than
necessary when the hybrid system is off.