2012 TOYOTA PRIUS C air condition

242 3-1. Using the air conditioning system and defogger
■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
■ 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. 516)
■ 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
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.

243
3-1. Using the air conditioning system
and defogger
3
Interior features
■Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic, set the
outside/recirculated air mode button to the recirculated air mode. This is
effective in preventing outside air from entering the vehicle interior. Dur-
ing 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 (24C) and the air condi-
tioning system is on
● In order to reduce the air conditioning power consumption, the air condi-
tioning 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 engine
switch is turned to the “ON” position (vehicles without a smart key sys-
tem) 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.
■ 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.

244 3-1. Using the air conditioning system and defogger
■Air conditioning filter
P. 395
■ When operating the steering switches
P. 186
CAUTION
■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
windshield can cause the outer surface of the windshield to fog up, blocking
your vision.
NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the
hybrid system is off.

245
3-1. Using the air conditioning system and defogger
3
Interior features
Rear window and outside rear view mirror defoggers
■The defoggers can be operated when
Vehicles without a smart key system
The engine switch is in the “ON” position.
Vehicles with a smart key system
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.
Defoggers are used to defog the rear window, and to remove rain-
drops, dew and frost from the outside rear view mirrors.
Turns the defoggers on/off
The defoggers will automati-
cally turn off after approxi-
mately 15 minutes.

304 3-3. Using the Bluetooth
® audio system
Adjusting the ringtone volume when receiving a callChange the ringtone volume using .
To decrease the volume: Turn counterclockwise.
To increase the volume: Turn clockwise.
■When talking on the phone
●Do not talk simultaneously with the other party.
● Keep the volume of the received voice down. Otherwise, voice echo will
increase.
■ Automatic volume adjustment
When vehicle speed is 50 mph (80 km/h) or more, the volume automatically
increases. The volume returns to the previous volume setting when vehicle
speed drops to 43 mph (70 km/h) or less.
■ Phone call system functions
Depending on the cellular phone, certain functions may not be available.
■ Situations where the system m ay not recognize your voice
● When driving on a rough road
● When driving at high speeds
● When air is blowing out of the vents onto the microphone
● When the air conditioning fan emits a loud noise

331
3-6. Other interior features
3
Interior features
Outside temperature display
■The outside temperatur e is displayed when
Vehicles without a smart key system
The engine switch is in the “ON” position.
Vehicles with a smart key system
The “POWER” switch is in ON mode.
■ Outside temperature display
The temperature display shows temperatures within the range of
-40°F (-40°C) and 122°F (50°C).
The outside temperature dis-
play of the “Drive Information”
screen can be displayed by
pressing the “DISP” switch.
( P. 189)
The outside temperature is shown on the
multi-information display when the steer-
ing wheel climate remote control switches
are used to adjust the air conditioning
system’s temperature or change between
outside and recirculated air modes.
(P. 241)

Maintenance and care4
341
4-1. Maintenance and careCleaning and protecting the vehicle exterior......... 342
Cleaning and protecting the vehicle interior.......... 345
4-2. Maintenance Maintenance requirements .................. 348
General maintenance....... 351
Emission inspection and maintenance (I/M)
programs........................ 355 4-3. Do-it-yourself maintenance
Do-it-yourself service precautions .................... 356
Hood ................................ 360
Positioning a floor jack ..... 362
Engine compartment ........ 364
12-volt battery .................. 375
Tires ................................. 380
Tire inflation pressure ...... 388
Wheels ............................. 392
Air conditioning filter......... 395
Wireless remote control/ electronic key battery ..... 397
Checking and replacing fuses .............................. 400
Light bulbs........................ 411

358 4-3. Do-it-yourself maintenance
CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions:
■When working on the engine compartment
●Vehicles without a smart key system: Make sure that the engine switch is
in the “LOCK” position and the “READY” indicator is off.
Vehicles with a smart key system: Make sure that the indicator on the
“POWER” switch and the “READY” indicator are both off.
● Keep hands, clothing and tools away from the moving fans and engine
drive belt.
● Be careful not to touch the engine, power control unit, radiator, exhaust
manifold, etc. right after driving as they may be hot. Oil and other fluids
may also be hot.
● Do not leave anything that may burn easily, such as paper and rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes
are flammable.
■ When working near the electric c ooling fans or radiator grille
Vehicles without a smart key system: The electric cooling fan may keep
rotating for about 3 minutes even after the engine switch is turned to the
“LOCK” position.
With the engine switch in the “ON” position, the electric cooling fan may
automatically start to run if the air conditioning is on and/or the coolant tem-
perature is high. Be sure the engine switch is in the “LOCK” position when
working near the electric cooling fan or radiator grille.
Vehicles with a smart key system: The electric cooling fan may keep rotating
for about 3 minutes even after the “POWER” switch is off.
With the “POWER” switch in ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant tempera-
ture is high. Be sure the “POWER” switch is off when working near the
electric cooling fans or radiator grille.