2013 TOYOTA PRIUS PLUG-IN HYBRID Hv mode

366 3-1. Using the air conditioning system and defogger
PRIUS PHV_OM_OM47787U_(U)
■Window defogger feature
● Recirculated air mode may automatically switch to outside air mode in
situations where the windows need to be defogged.
● When the outside air temperature is low, it may take a while for the con-
densation to clear from the windshield.
● When is turned ON, the gasoline engine may operate depending
on driving conditions. After that, even if is turned OFF, the fan
does not stop and a state in which it is easy for the gasoline engine to
operate continues. After defogging the windows, press as neces-
sary to turn off the fan.
■ When is selected for the air outlets used
For your driving comfort, air flowing to the feet may be warmer than air flow-
ing to the upper body depending on the temperature setting.
■ Micro dust and pollen filter
● In order to prevent the windows from fogging up when the outside air is
cold, the following may occur.
• Outside air mode does not switch to recirculated air mode.
• The air conditioning system operates automatically.
• The operation cancels after 1 minute.
● In rainy weather, the windows may fog up. Press .
● Condensation may appear on the windows if this mode is used in abnor-
mally high levels of humidity.
● Pollen will be collected by the filter even when micro dust and pollen f\
ilter
mode is OFF.
■ Maintenance of the air conditioning filter
The air conditioning filter must be cleaned or changed regularly to maintain
air conditioning efficiency according to the maintenance schedule. In dusty
areas or areas with heavy traffic flow, early replacement may be required.
(For scheduled maintenance information, refer to the “Owner’s Manual Sup-
plement/ Scheduled Maintenance Guide”.)
When inspecting, cleaning and replacing the air conditioning filter, contact
your Toyota dealer.

367
3-1. Using the air conditioning system
and defogger
PRIUS PHV_OM_OM47787U_(U)
3
Interior features
■If air flow from the vents decreases dramatically
The filter may be clogged. Contact your Toyota dealer.
■ Operation of the air conditio ning system in Eco drive mode
In the Eco drive mode, the air conditioning system is controlled as follows to
prioritize fuel efficiency:
● Engine speed and compressor operation controlled to restrict heating/
cooling capacity
● Fan speed restricted when automatic mode is selected
To improve air conditioning performance, perform the following operations:
● Adjust the fan speed
● Turn off Eco drive mode ( P. 247)
● Customize the air conditioning control of Eco drive mode. ( P. 639)
■ When outside air temperature is below 32 °F (0 °C)
The cooling and dehumidification function may not operate even when
is pressed.
■ Air conditioning odors
● 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 conditioning system is started in automatic
mode.
■ Customization
Settings (e.g. enable/disable automatic operation of the air conditioning
compressor when the “AUTO” switch ON) can be changed.
(Customizable features P. 639)

369
3-1. Using the air conditioning system and defogger
PRIUS PHV_OM_OM47787U_(U)
3
Interior features
Using the steering wheel climate remote control switches
Adjusting the temperature settingPress “ ” on to increase the temperature and “ ” to decrease
the temperature.
Changing the outside air or recirculated air modes
Press .
The mode switches between outside air mode and recirculated air mode
each time the switch is pressed.
Some air conditioning features can be controlled using the switches
on the steering wheel.
Temperature control
Outside air or recirculated
air mode

375
3-1. Using the air conditioning system and defogger
PRIUS PHV_OM_OM47787U_(U)
3
Interior features
Rear window and outside rear view mirror defoggers switch
■Operating conditions
The “POWER” switch is in ON mode.
■ The outside rear view mirr or defoggers (if equipped)
Turning the rear window defogger on will turn the outside rear view mirror
defoggers on.
CAUTION
■ When the outside rear view mirr or 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 rear window defogger on longer than necessary when the
hybrid system is off.
Defoggers are used to defog the rear window, and to remove rain-
drops, dew and frost from the outsid e rear view mirrors (if equipped).
Turns the rear window and
outside rear view mirror defog-
gers on/off
The defoggers will automati-
cally turn off after approxi-
mately 15 minutes.

384 3-3. Using the interior lights
PRIUS PHV_OM_OM47787U_(U)
Rear interior lightThe light will turn on/off in con-
junction with the front interior
lights
Turns the light on
ITI34P133a
■Illuminated entry system
The lights automatically 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 opened/closed.
■ To prevent 12-volt battery discharge
If the interior lights remain on when the door is not fully closed and the inte-
rior light switch (door position on/off) is on, the lights will go off automatically
after 20 minutes.
■ Customization
Setting (e.g. The time elapsed before lights turn off) can be changed.
(Customizable features P. 643)
NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is
off.
Rear interior light

394
3-5. Other interior features
PRIUS PHV_OM_OM47787U_(U)
Outside temperature display
■Operating conditions
The “POWER” switch is in ON mode.
■ Display
In the following situations, the correct outside temperature may not be dis-
played, or the display may take longer than normal to change.
● When stopped, or driving at low speeds (less than 16 mph [25 km/h])
● When the outside temperature has changed suddenly (at the entrance/
exit of a garage, tunnel, etc.)
■ When -- is displayed
The system may be malfunctioning. Take your vehicle to your Toyota dealer.
The displayed temperature ranges fr om -40 °F (-40 °C) up to 122 °F
(50 °C).

395
3-5. Other interior features
PRIUS PHV_OM_OM47787U_(U)
3
Interior features
Power outlets
■The power outlets can be used when
The “POWER” switch is in ACCESSORY or ON mode.
The power outlets can be used for 12 V accessories that run on less
than 10 A.
Instrument panel
Open the cover.
Rear console box Open the cover.

397
3-5. Other interior features
PRIUS PHV_OM_OM47787U_(U)
3
Interior features
Seat heaters
■The seat heaters can be used when
The “POWER” switch is in ON mode.
■ When not in use
Turn the seat heater off.
Heats the left front seat
Heats the right front seat
HI: Strong
LO: Weak
The indicator light of the side you
pressed (“HI” or “LO”) comes on.
To stop operation, gently press
the side of the button opposite the
side that was pressed.
The switch will return to its neutral
position and the indicator light will
go out.