2023 TOYOTA PRIUS PRIME air conditioning

4386-1. Using the air conditioning system and defogger
turned on automatically. (P.422)
●To improve air conditioning perfor-
mance, perform the following
operations:
• Adjust the fan speed
• Deactivate Eco drive mode
( P.422)
• Turn off eco air conditioning mode
( P.440)
■Ventilation and air conditioning
odors
●To let fresh air in, set the air condi-
tioning 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, the air flow mode
may change to blow air to the feet
or air may stop blowing for a short
period of time immediately after
the air conditioning system is
started in automatic mode.
●When parking, the system auto-
matically switches to outside air
mode to encourage better air cir-
culation throughout the vehicle,
helping to reduce odors that occur
when starting the vehicle.
■Using the voice control system
(if equipped)
Air conditioning system can be
operated using voice control sys-
tem.
For details regarding the voice con-
trol system, refer to “MULTIMEDIA
OWNER’S MANUAL”.
■Air conditioning filter
 P.535
■Air conditioning system refrig-
erant
●A label regarding the refrigerant of
the air conditioning system is attached to the hood at the loca-
tion shown in th
e following illustra-
tion.
●The meaning of each symbol on
the label are as follows:
■Noise from air conditioning sys-
tem
Approximately 90 seconds after the
power switch turned to OFF, you
may hear sound coming from air
conditioning system. This is the
sound of a air conditioning system
initialize and, it does not indicate a
malfunction.
■Customization
Some functions can be customized.
(Customizable features: P.618)
Caution
Air conditioning sys-
tem
Air conditioning sys-
tem lubricant type
Requires registered
technician to service
air conditioning sys-
tem
Flammable refrigerant

4396-1. Using the air conditioning system and defogger
6
Interior features
1Press the “AUTO” switch.
2 Adjust the temperature set-
ting.
3 To stop the operation, press
the “OFF” switch.
If the fan speed setting or air
flow modes are operated, the
automatic mode indicator goes
off. However, automatic mode
for functions other than that
operated is maintained.
■Using automatic mode
Fan speed is adjusted automati-
cally 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 the auto-
matic mode switch is pressed.
Cool air may blow around the upper
body even when the heater is on
due to sunlight.
■Windshield fog detection func-
tion
When automatic mode is set, the
humidity sensor detects fog on the
windshield and controls the air con-
ditioning system to prevent fog.
WARNING
■Cautions for using “My Room
Mode”
Do not leave children, people who
need assistance, or pets inside
the vehicle. The system may turn
off automatically and the interior
temperature may become high or
low, resulting in heat stroke, dehy-
dration or hypothermia. Failure to
do so may result in death or seri-
ous injury.
■To prevent the windshield
from fogging up
Do not use the windshield defog-
ger switch during cool air opera-
tion in extremely humid weather.
The difference between the tem-
perature of the outside air and
that of the windshield can cause
the outer surface of the wind-
shield to fog up, blocking your
vision.
■When the outside rear view
mirror defoggers are operat-
ing (if equipped)
Do not touch the rear view mirror
surfaces when the outside rear
view mirror defoggers are on.
NOTICE
■To prevent 12-volt battery dis-
charge
Do not leave the air conditioning
system on longer than necessary
when the hybrid system is off.
■When repairing/replacing
parts of the air conditioning
system
Have repair/replacement per-
formed by your Toyota dealer.
When a part of the air condition-
ing system, such as the evapora-
tor, is to be replaced, it must be
replaced with a new one.
Using automatic mode
NOTICE
■Humidity sensor
In order to detect fog on the wind-
shield, a sensor which monitors
the temperature of the windshield,
the surround humidity, etc. is
installed.
Follow these points to avoid dam-
aging the sensor:
●Do not disassemble the sensor

4406-1. Using the air conditioning system and defogger
This feature is used to prevent
ice from building up on the wind-
shield and wiper blades.
Press the switch to turn the sys-
tem on/off.
The indicator comes on when the
system is on.
The windshield de-icer will auto-
matically turn off after approxi-
mately 15 minutes.
For detail regarding the Multi-
media Display, refer to “MULTI-
MEDIA OWNER’S MANUAL”.
■Display procedure
1 Touch on the main menu
on the Multimedia Display.
2 Touch “Climate” on the sub
menu.
3 Select any screen.
Displays the air conditioning
control screen.
Displays the option control
screen.
NOTICE
●Do not spray the glass cleaner
on the sensor or subject it to
strong impacts
●Do not stick anything on the
sensor
Windshield de-icer (if
equipped)
WARNING
■To prevent burns
Do not touch the glass at lower
part of the windshield or to the
side of the front pillars when the
windshield deicer is on.
Air conditioning control
screen
A
B

4416-1. Using the air conditioning system and defogger
6
Interior features
■Air conditioning control
screenSelect the air flow mode
Each time the switch is touched,
the air flow mode changes. : Air flows to the upper body
: Air flows to the upper body
and feet
: Air flows to the feet
: Air flows to the feet and the
windshield defogger operates
Turns cooling and dehumidi-
fication function on/off
Each time the switch is touched,
the function turns on/off.
When the function is on, the indica-
tor on the switch illuminates.
Fan speed display
Setting of the fan speed is dis-
played.
■Option control screen
The functions can be switched (ON) and (OFF). Eco air conditioning mode
(
P.437)
Windshield wiper de-icer (if
equipped) ( P.440)
■Location of air outlets
The air outlets and air volume
change according to the
selected air flow mode.
: If equipped
■Adjusting the air flow direc-
tion
Direct air flow to the left or right,
up or down.
A
B
C
Air outlet la yout and oper-
ations
A
B

4426-1. Using the air conditioning system and defogger
■Opening and closing the air
outlets
Left side outlet/right side out-
let
1 Open the vent
2 Close the vent
Center outlets
1 Open the vent
2 Close the vent
WARNING
■To not interrupt the wind-
shield defogger from operat-
ing
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 defog-
ging.

4436-1. Using the air conditioning system and defogger
6
Interior features
*: If equipped
Turns the heated steering wheel
on/off
The indicator light comes on when
the heated steering wheel is oper-
ating.
■Operation condition
The power switch is in ON.
■Front seats
Press the switch to turn the seat
heater on/off.
Heated steering
wheel
*/seat heat-
ers
*/seat ventilators*
 Heated steering wheel
Warm up the grip of the steer-
ing wheel
 Seat heaters
Warm up the seat upholstery
 Seat ventilators
Maintain good airflow by suck-
ing air into the front seats
WARNING
■To prevent minor burn inju-
ries
Care should be take n if anyone in
the following catego ries comes in
contact with the steering wheel or
seats when the heater is on:
●Babies, small children, the
elderly, the sick and the physi-
cally challenged
●Persons with sensitive skin
●Persons who are fatigued
●Persons who have taken alco-
hol or drugs that induce sleep
(sleeping drugs, cold remedies,
etc.)
NOTICE
■To prevent damage to the
seat heaters and seat ventila-
tors
Do not put heavy objects that
have an uneven surface on the
seat and do not stick sharp
objects (needles, nails, etc.) into
the seat.
■To prevent 12-volt battery dis-
charge
Do not use the functions when the
hybrid system is off.
Operating the heated
steering wheel
Operating the seat heat-
ers

4446-1. Using the air conditioning system and defogger
The level indicators come on
yellow during operation.
Each time the switch is pressed,
the operation condition changes as
follows.
Hi (3 segments lit)  Mid (2 seg-
ments lit)  Lo (1 segment lit) 
Off
■Outboard rear seats (if
equipped)
Press the switch to turn the seat
heater on/off.
The indicator on the switch illumi-
nates during operation.
■Operation condition
The power switch is in ON.
Press the switch to turn the seat
ventilator on/off.
The level indicators come on
green during operation.
Each time the switch is pressed,
the operation condition changes as
follows.
Hi (3 segments lit)  Mid (2 seg-
ments lit)  Lo (1 segment lit) 
Off
■Operation condition
The power switch is in ON.
■Air conditioning system-linked
control mode
When a seat ventilator is set to Hi,
the fan speed of the seat ventilator
AWARNING
■To prevent causes of over-
heating and minor burn inju-
ries
Observe the following precautions
when using a seat heater:
●Do not cover the seat with a
blanket or cushion when using
the seat heater.
●Do not use seat heater more
than necessary.
Operating the seat venti-
lators
A

4456-1. Using the air conditioning system and defogger
6
Interior features
may increase according to the fan
speed of the air conditioning sys-
tem.