Toyota SIENNA U User manual

380
SIENNA_U (OM45477U)
3-1. Using the air conditioning system and defogger
Front manual air conditioning system∗
Adjusting the settings
■Basic setting
To turn on the air conditioning system and adjust the fan
speed, press “∧” on to increase the fan speed and “∨” to
decrease the fan speed.
The fan speed is shown on the control panel. (6 levels)
Press to turn the fan off.
∗: If equipped
Front fan speed
Air outlet selector
buttons
Driver’s side temperature
control dial
Rear temperature control dial
Passenger’s side
temperature control dial
Rear fan speed
Off
Windshield defogger
Outside air or recirculated air mode
Front air
conditioning
on/off switch
STEP 1

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Interior features
SIENNA_U (OM45477U)
Driver’s side temperature control dial
Turn the temperature control dial clockwise (warm) or coun-
terclockwise (cool).
If is not pressed, the system will blow ambient temperature air
or heated air.
For quick cooling, turn the temperature control dial to the “MAX A/C”
position. The air conditioning will automatically turn on and the air
circulation mode will be set to recirculated air mode.
When the dial is in the “MAX A/C” position, the air conditioning sys-
tem cannot be turned off even if is pressed.
Front passenger’s side temperature control dial
Turn the temperature control dial clockwise (warm) or counter
clockwise (cool).
STEP 2

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SIENNA_U (OM45477U)
To change the air outlets, press , , or
.
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 mainly to the feet.
STEP 3

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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
Turn the rear temperature control dial clockwise (increase) or
counterclockwise (decrease).
When the rear temperature control dial is turned to “REAR
CTRL”, the rear temperature and fan speed can be operated
from the rear air conditioning control panel. (→P. 398)

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3-1. Using the air conditioning system and defogger
SIENNA_U (OM45477U)
■Adjusting rear fan speed
Press “∧” on to increase the fan speed and “∨” to decrease
the fan speed.
The fan speed is shown on the control panel. (4 levels)
Press to turn the fan off.
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.

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3-1. Using the air conditioning system and defogger
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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 the
left or right, up or
down.
Opening and closing:
Close the vent.
Open the vent.

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3-1. Using the air conditioning system and defogger
SIENNA_U (OM45477U)
■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.
■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 the indicator light on 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 indicator
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.

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Interior features
SIENNA_U (OM45477U)
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.

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3-1. Using the air conditioning system and defogger
SIENNA_U (OM45477U)
Front automatic air conditioning system∗
∗: If equipped
Airflow and outlets are automatically adjusted according to the tem-
perature setting.
Control panel
Changes the rear air outlets used
Simultaneous mode
Passenger’s side
temperature control
Rear air conditioning on/off switch
Outside air or recirculated air mode
Off
Windshield
defogger
Front fan speed Rear temperature control
Rear fan speed
Front air conditioning on/off switch
Automatic
mode
Changes the front
air outlets used
Driver’s side
temperature control dial

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Interior features
SIENNA_U (OM45477U)
Using the automatic mode
Press .
The air conditioning system will begin to operate. In outside air or
recirculated air mode, air outlets, fan speed and air conditioning on/
off are automatically adjusted according to the temperature setting.
“AUTO” will be displayed on the multi-information display.
Turn the temperature control dial clockwise (warm) or coun-
terclockwise (cool).
The temperature for the driver and passenger seat can be set sepa-
rately.
Multi-information display
Automatic mode indicator Passenger’s side
temperature setting
display
Front fan speed
display
Rear airflow display
Rear temperature setting display
Rear fan speed display
Air conditioning
on indicator
Front Airflow display
Driver’s side
temperature
setting display
STEP 1
STEP 2

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3-1. Using the air conditioning system and defogger
SIENNA_U (OM45477U)
Adjusting the settings
■Adjusting the temperature setting
Turn the temperature control dial clockwise (warm) or counter-
clockwise (cool).
The air conditioning system switches between individual and simulta-
neous modes each time is pressed.
Individual mode:The temperature for the driver’s, passenger’s and rear
seats can be set separately. Operating the passenger’s
side or rear temperature control will enter individual
mode.
Simultaneous mode:Only the temperature control dial (driver’s side) can
be used to adjust the temperature for all seats.
■Adjusting the fan speed
Press “∧” (increase) or “∨” (decrease) on .
The fan speed is shown on the display. (7 levels)
Press to turn the fan off.

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3-1. Using the air conditioning system and defogger
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Interior features
SIENNA_U (OM45477U)
Adjusting the settings manually
■Basic setting
To turn on the air conditioning system and adjust the fan
speed, press “∧” on to increase the fan speed and “∨” to
decrease the fan speed.
Press to turn the fan off.
To adjust the temperature setting, turn the temperature control
dial (driver’s side) clockwise to increase the temperature and
turn the temperature control dial (driver’s side) counterclock-
wise to decrease the temperature.
When is pressed or the passenger’s side temperature
control is pressed, the temperature for the driver and passen-
ger seats can be adjusted separately.
Press .
STEP 1
STEP 2
STEP 3

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SIENNA_U (OM45477U)
The air outlets switch each time is pressed. The air flow
shown on the display indicates the following.
Air flows to the upper body.
Air flows to the upper body and
feet.
Air flows mainly to the feet.

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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.
STEP 1
STEP 2

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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 time 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 the
left 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 temperature approaches 32°F (0°C)
The air conditioning system may not operate even when is pressed.

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Interior features
SIENNA_U (OM45477U)
■When the “A/C ON” in the multi-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 fan 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 dial Temperature control dial

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3-1. Using the air conditioning system and defogger
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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.