2012 TOYOTA SIENNA Owners Manual

393
3-1. Using the air conditioning system
and defogger
3
Interior features
SIENNA_U (OM45477U) Air flows to the feet and the
windshield defogger operates.
■ Switching between outside air and recirculated air modes
Press .
The mode switches between outside air mode (introduces air from out-
side the vehicle) (indicator off) and recirculated air mode (recycles air
inside the vehicle) (indicator on) each time the button is pressed.
Changing the rear setting
■ Adjusting the temperature setting
Press (indicator on).
Press “ ” on to increase the temperature and “ ” to
decrease the temperature.
The air conditioning system switches between individual and simul-
taneous modes each time is pressed.
STEP1
STEP2

394 3-1. Using the air conditioning system and defogger
SIENNA_U (OM45477U)■
Adjusting the fan speed
Press “ ” on to increase the fan speed and “ ” to decrease
the fan speed.
Press to turn the fan off.
■ Changing the air outlets
Press .
The air outlets switch each ti me the button is pressed. (P. 402)
Defogging the windshield
Press
.
The air conditioning system oper-
ates automatically.
Recirculated air mode will auto-
matically switch to outside air
mode. It is not possible to return
to recirculated air mode when the
switch is on.
Pressing again will revert
to the previous air outlet mode.

395
3-1. Using the air conditioning system
and defogger
3
Interior features
SIENNA_U (OM45477U)
Adjusting the position of and opening and closing the air outlets
Center outlets Direct air flow to the left or right,
up or down.
Right and left side outlets Adjusting: Direct air flow to theleft or right, up or
down.
Opening and closing: Close the vent.
Open the vent.

396 3-1. Using the air conditioning system and defogger
SIENNA_U (OM45477U)
■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.
● Immediately after is pressed, the fan may stop for a while until
warm or cool air is ready to flow.
● Cool air may flow to the area around the upper body when the heater is
on.
■ Using the system in recirculated air mode
The windows will fog up more easily if the recirculated air mode is used
■ Switching between outside air and recirculated air modes
Recirculated air mode or outside air mode may be automatically switched to
in accordance with the temperature setting and the inside temperature.
■ Window defogger feature
Recirculated air mode may automatically switch to outside air mode in situa-
tions where the windows need to be defogged.
■ Temperature display
The temperature display (English/U.S. Customary System and metric units)
on the trip information display can be changed. ( P. 256)
■ 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.
■ When outside temper ature approaches 32F (0 C)
The air conditioning system may not operate even when is pressed.

397
3-1. Using the air conditioning system
and defogger
3
Interior features
SIENNA_U (OM45477U)
■When the “A/C ON” in the mu lti-information display flashes
Press
and turn off the air conditioning system before turning it on
once more. There may be a problem in the air conditioning system if the indi-
cator light continues to flash. Turn the air conditioning system off and have it
inspected by your Toyota dealer.
■ 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.
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 wind-
shield can cause the outer surface of the windshield to fog up, blocking your
vision.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the
engine is stopped.

398
3-1. Using the air conditioning system and defogger
SIENNA_U (OM45477U)
Rear manual air conditioning system
Adjusting the settings■ Adjusting the temperature setting
Turn the temperature control dial clockwise (warm) or counter-
clockwise (cool).
■ Adjusting the fan speed
Turn the fan speed control dial clockwise (increase) or counter-
clockwise (decrease).
■ The temperature setting and fa n speed will only function
If the rear temperature dial on the front air conditioning controls is
in the “REAR CTRL” position.
: If equipped
Changes the air outlet used
Fan speed control dialTemperature control dial

399
3-1. Using the air conditioning system
and defogger
3
Interior features
SIENNA_U (OM45477U)■
Changing the air outlets
Press the desired .
Air flows as shown below according to the mode selected.
Air flows to the upper body.
Air flows to the upper body and
feet.
Air flows to the feet.

400 3-1. Using the air conditioning system and defogger
SIENNA_U (OM45477U)
Adjusting the position of and opening and closing the air outlets
Direct air flow to the front or rear,
up or down.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the
engine is off.