TOYOTA PRIUS 2020 Owners Manual (in English)

PRIUS_OM_OM47D44U_(U)
4415-1. Using the air conditioning system and defogger
5
Interior features
■Windshield fog detection function
When automatic mode is set, the humidity sensor (P. 443) detects fog on
the windshield and controls the air conditioning system to prev ent 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 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. 336)
■ When the outside tempera ture falls to nearly 32F (0 C)
The dehumidification function may not operate even when is
selected.

4425-1. Using the air conditioning system and defogger
PRIUS_OM_OM47D44U_(U)■
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 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 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
■ Customization
Settings (e.g. A/C auto switching operation) can be changed. (C ustomizable
features: P. 678)
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 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.
● 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.

PRIUS_OM_OM47D44U_(U)
4435-1. Using the air conditioning system and defogger
5
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 necessa ry when the
hybrid system is off.
■ Air outlets
The air outlets become hot when used for heating. Therefore, us e 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. 441)
Follow these points to avoid damaging
the sensor:
● Do not disassemble the sensor

444
PRIUS_OM_OM47D44U_(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 physically chal- lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping 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_OM47D44U_(U)
4455-1. 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
1
2

446
PRIUS_OM_OM47D44U_(U)
5-2. Using the interior lights
Interior lights list
Rear interior light ( P. 448)
Front personal/interior lights ( P. 447)
Shift lever lighting
Footwell lights (if equipped)
Front door courtesy lights1
2
3
4
5

PRIUS_OM_OM47D44U_(U)
4475-2. 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
1
2
3
1
2
Vehicles without moon roofVehicles with moon roof
Turns the lights on/off Turns the lights on/off

448
PRIUS_OM_OM47D44U_(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 battery 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. 678)
Rear interior light
1
2
NOTICE
To prevent 12-volt battery discharge, do not leave the lights on longer than
necessary when the hybrid system is off.

449
PRIUS_OM_OM47D44U_(U)
5-3. Using the storage features
5
Interior features
List of storage features
Auxiliary boxes ( P. 453)
Glove box ( P. 450)
Bottle holders/door pockets
(  P. 452) Cup holders (
P. 451)
Seat back pockets (P. 454)
Console box ( P. 450)1
2
3
4
5
6
WARNING
●Do not leave glasses, lighters or spray cans in the storage spaces, as this
may cause the following when cabin temperature becomes high:
• Glasses may be deformed by heat or cracked if they come into c ontact
with other stored items.
• Lighters or spray cans may explode. If they come into contact with other
stored items, the lighter may catch fire or the spray can may r elease
gas, causing a fire hazard.
● When driving or when the storage compartments are not in use, k eep the
lids closed.
In the event of sudden braking or sudden swerving, an accident may occur
due to an occupant being struck by an open lid or the items stored inside.

450
PRIUS_OM_OM47D44U_(U)
5-3. Using the storage features
Pull up the lever.
The glove box light turns on when the tail lights are on.
Press the knob and open the lid.
Glove box
Console box
The tray slides forward/backward and can
be removed.