Page 345 of 552

3456-1. Using the air conditioning system and defogger
6
Interior features
PRIUS c_U (OM52E68U)
■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:
● Heating/cooling capacity is restricted.
● Outside/recirculated air mode may automatically switch depending on the
temperature setting or the inside temperature.
● Fan speed restricted when automatic mode is selected
To improve air conditioning performance, perform the following operations:
● Adjust the fan speed or the temperature setting
● Turn off Eco drive mode
■ 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.
■ 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 wind-
shield effectively.
● If you turn off, the windows may fog up more easily.
● The windows may fog up if the recirculated air mode is used.
Page 346 of 552

3466-1. Using the air conditioning system and defogger
PRIUS c_U (OM52E68U)■
Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic, set the out-
side/recirculated air mode button to the recirculated air mode. This is effec-
tive in preventing outside air from entering the vehicle interior. During
cooling operation, setting the recirculated 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.
■ When the outside temperature exceeds 75 F (24C) and the air condition-
ing system is on
● In order to reduce the air conditioning power consumption, the air condition-
ing system may switch to recirculat ed air mode automatically. This may also
reduce fuel consumption.
● Recirculated air mode is selected as a default mode when the engine switch
is turned to the “ON” position (vehicles without a smart key system) or the
“POWER” switch is turned to ON mode (vehicles with a smart key system).
● It is possible to switch to outside air mode at any time by pressing .
■ When the outside temperature falls to nearly 32 F (0 C)
The dehumidification function may not operate even when is pressed.
■ 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.
● To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time immediately after the air conditioni ng system is started in automatic
mode.
Page 347 of 552

3476-1. Using the air conditioning system and defogger
6
Interior features
PRIUS c_U (OM52E68U)■
Air conditioning filter
P. 4 1 1
■ Customization
The air conditioning control of Eco drive mode can be changed to the same
setting as that used in normal drive mode.
(Customizable features P. 515)
WARNING
■To prevent the windshield from fogging up
●Do not use during cool air operat ion 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.
■ When the outside rear view mirror defoggers are on (if equipped)
Do not touch the outside surface of the rear view mirrors, as they can
become very hot and burn you.
NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the
hybrid system is off.
●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.
Page 348 of 552

3486-1. Using the air conditioning system and defogger
PRIUS c_U (OM52E68U)
Turns on the front left seat
heater
Turns on the front right seat
heater
The indicator light comes on.
Push the switch once again to turn
off the seat heater.
■The seat heaters can be used when
The “POWER” switch is in ON mode.
■ When not in use
Turn the seat heater off. The indicator light goes off.
Seat heaters
: If equipped
WARNING
●Care should be taken to prevent injury if anyone in the following categories
comes in contact with the seats when the heater 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 the minor burns or overheat-
ing
• 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 seat 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.
1
2
Page 349 of 552
349
6
Interior features
PRIUS c_U (OM52E68U)
6-2. Using the interior lights
Interior lights/personal lights (P. 350)
Luggage compartment light (if equipped) ( P. 134)
Interior lights list
1
2
Page 350 of 552
3506-2. Using the interior lights
PRIUS c_U (OM52E68U)
Turns the lights off
Turns the lights on/off linked to
door positions
Turns the lights on
Turns the lights on
Turns the lights off
Interior lights
1
2
3
Personal lights
1
2
Page 351 of 552

3516-2. Using the interior lights
6
Interior features
PRIUS c_U (OM52E68U)
■Illuminated entry system
Vehicles without a smart key system
When the interior lights switch is in the door position, the interior lights auto-
matically turn on/off according to the engine switch position, whether the
doors are locked/unlocked, and whether the doors are open/closed.
Vehicles with a smart key system
When the interior lights switch is in the door position, the interior lights auto-
matically turn on/off according to “POWER” switch mode, the presence of the
electronic key, whether the doors are locked/unlocked, and whether the doors
are open/closed.
■ To prevent 12-volt battery discharge
Vehicles without a smart key system
If the interior lights, personal lights or luggage compartment light remain on
when the engine switch is “LOCK” position, the lights will go off automatically
after 20 minutes.
Vehicles with a smart key system
If the interior lights, personal lights or luggage compartment light remain on
when the “POWER” switch is off, the lights will go off automatically after 20
minutes.
■ Customization that can be configured at Toyota dealer
Settings (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features P. 514)
NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is
off.
Page 352 of 552
352
PRIUS c_U (OM52E68U)
6-3. Using the storage features
List of storage features
Bottle holders (P. 356)
Auxiliary boxes (if equipped) (P. 354)
Glove box ( P. 353) Cup holders (
P. 355)
Console box (if equipped) (P. 353)1
2
3
4
5
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 contact
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 release
gas, causing a fire hazard.
● When driving or when the storage compartments are not in use, keep 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.