air conditioning TOYOTA PRIUS 2009 2.G Owner's Manual

209
3-2. Using the air conditioning system
and defogger
3
Interior features
PRIUS_U_(OM47614U)
Adjusting the position of and opening and closing the air outlets
Front outlets Direct air flow to the left or
right, up or down
Turn the knob to open or close
the vent
■Using the automatic mode
Fan speed is adjusted automatically in accordance with the temperature set-
ting and ambient conditions. As a result, the following may occur.
● The system may switch automatically to recirculated mode when the
coolest temperature setting is selected in summer.
● Immediately after the switch is pressed, the fan may stop for a while until
warm or cool air is ready to flow.
■ Using the system in recirculated air mode
The windows will fog up more easily if the recirculated air mode is used for
an extended period.
■ Window defogger feature
Recirculated air mode may automatically switch to
(outside air) mode
in situations where the windows need to be defogged.
■ Outside temperatur e approaches 32F (0 C).
The air conditioning system may not operate even when is touched.
■ 2-way air intake control
To improve fuel economy, OUTSIDE AIR mode control changes when the air
intake selector is set in OUTSIDE AIR on the following conditions:
● When the maximum heating is needed with the air flow in “Floor” or
“Floor/Windshield”, fresh air flows in the upper compartment, while air is
recirculated in the lower compartment.
● When cooling is needed, both fresh and recirculate modes turn on.

210 3-2. Using the air conditioning system and defogger
PRIUS_U_(OM47614U)
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 automatic air conditioning system on longer than necessary
when the hybrid system is not operating.

211
3-2. Using the air conditioning system and defogger
3
Interior features
PRIUS_U_(OM47614U)
Using the steering wheel climate remote control switches
Using the automatic mode
Press .
The air conditioning system will operate, and air outlets and
fan speed will be set automatically.
“AUTO” will be displayed on the multi-information display. (if
equipped)
Press “” on to increase the temperature and “” to
decrease the temperature
.
Adjusting the temperature setting
Press
“” on to increase the temperature and “” to decrease
the temperature.
Some air conditioning features can be controlled using the switches
on the steering wheel.
Automatic mode
Temperature control
Recirculated air mode
Windshield defogger mode
Rear window and outside
rear view mirror defogger
mode
STEP1
STEP2

212 3-2. Using the air conditioning system and defogger
PRIUS_U_(OM47614U)
Changing the recirculated air mode
Press . ( P. 2 0 1 208)
Using the windshield defogger mode
Press . ( P. 201, 208)
Using the rear window and outside rear view mirror defogger
mode
Press . ( 213)
CAUTION
■To reduce the risk of an accident
Exercise care when operating the audio switches on the steering wheel.

213
3-2. Using the air conditioning system and defogger
3
Interior features
PRIUS_U_(OM47614U)
Rear window and outside rear view mirror defoggers
These features are used to defog the rear window, and to remove
raindrops, dew and frost from the outside rear view mirrors. (vehi-
cles with mirror defoggers)
Press
to display the air conditioning operation screen.
Ty p e A
Ty p e B Press the button.
Press the button to turn on the
rear window and outside rear
view mirror defoggers. The
defoggers will automatically
turn off after approximately 15
minutes. Pressing the button
again also turns the defoggers
off.
indicator located in the
instrument panel.
ITY32P012
ITY32P013

214 3-2. Using the air conditioning system and defogger
PRIUS_U_(OM47614U)
■Operating conditions
The “POWER” switch must be in the ON mode.
CAUTION
■When the outside rear view mirror defoggers are on (vehicles with mir-
ror defoggers)
Do not touch the rear view mirror surfaces, as they can become very hot and
burn you.
NOTICE
■ To prevent 12 volt battery discharge
Turn the defoggers off when the hybrid system is not operating.

271
3-4. Using the hands-free
system (for cellular phone)
3
Interior features
PRIUS_U_(OM47614U)
■When using the hands-free system
● The audio system and voice guidance are muted when making a call.
● If both parties speak at the same time it may be difficult to hear.
● If the received call volume is overly loud, an echo may be heard.
● Try to face the microphone as much as possible when speaking.
● In the following circumstances it may be difficult to hear the other party.
• When driving on unsealed roads
• When driving at high speeds
• If the window is open
• If the air-conditioning is blowing directly on the microphone
• If the air-conditioning is set to high
■ Conditions under which th e system will not operate
● If using a mobile phone that does not support Bluetooth
®.
● If the mobile phone is switched off.
● If you are outside service range.
● If the mobile phone is not connected.
● If the mobile phone’s battery is low.
■ Bluetooth
® antenna
The antenna is built into the display. If the mobile phone is behind the seat or
in the console box, or touching or covered by metal objects, connection sta-
tus may deteriorate.
■ Battery charge/Signal status
This display may not correspond exactly with the mobile phone itself.

Maintenance and care4
341
PRIUS_U_(OM47614U)
4-1. Maintenance and careCleaning and protecting the vehicle’s exterior ............ 342
Cleaning and protecting the vehicle’s interior ............. 344
4-2. Maintenance Maintenance requirements .................. 347
General maintenance....... 349
Emission inspection and maintenance (I/M)
programs ........................ 352
4-3. Do-it-yourself maintenance Do-it-yourself service precautions .................... 353
Hood ................................ 357
Positioning a floor jack ..... 358
Engine compartment ........ 360
Tires ................................. 375
Tire inflation pressure ...... 384
Wheels ............................. 388
Air conditioning filter......... 390
Electronic key battery....... 392
Checking and replacing fuses .............................. 394
Light bulbs........................ 403

355
4-3. Do-it-yourself maintenance
4
Maintenance and care
PRIUS_U_(OM47614U)
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:
● Keep hands, clothing, and tools away from the moving fan and engine
drive belt.
● Be careful not to touch the engine, inverter, 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 or rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel or the 12 volt
battery. Fuel and 12 volt battery fumes are flammable.
● Be extremely cautious when working on the 12 volt battery. It contains poi-
sonous and corrosive sulfuric acid.
● Never touch, disassemble, remove or replace the high voltage parts,
cables and their connectors. It can cause severe burns or electric shock
that may result in death or serious injury.
● When the hybrid system is operating with the “READY” light on, the engine
may suddenly start in some cases. When you inspect the engine compart-
ment, be sure to turn off the hybrid system.
■ When working near the electric cooling fan or radiator grille
Be sure the “POWER” switch is OFF.
With the “POWER” switch in ON mode, the electric cooling fan may automat-
ically start to run if the air conditioning is on and/or the coolant temperature
is high. ( P. 369)
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting in the eyes.

390
4-3. Do-it-yourself maintenance
PRIUS_U_(OM47614U)
Air conditioning filter
The air conditioning filter must be changed regularly to maintain air
conditioning efficiency.
■ Removal method
Turn the “POWER” switch to OFF mode.
Open the glove box slide off
the damper.
Lift the glove box to discon-
nect the claws at the bottom
and remove it.
Remover the filter case.
STEP1
STEP2
STEP3
STEP4