Page 401 of 876
401
3-1. Using the air conditioning system
and defogger
3
Interior features
SIENNA_OM_OM45472U_(U)
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.
Page 402 of 876
402
3-1. Using the air conditioning system and defogger
SIENNA_OM_OM45472U_(U)
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 speedRear 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
Page 403 of 876
403
3-1. Using the air conditioning system
and defogger
3
Interior features
SIENNA_OM_OM45472U_(U)
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
STEP1
STEP2
Page 404 of 876
404 3-1. Using the air conditioning system and defogger
SIENNA_OM_OM45472U_(U)
Adjusting the settings
■ Adjusting the temperature setting
Turn the temperature control dial clockwise (warm) or counter-
clockwise (cool).
The air conditioning system switch es 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.
Page 405 of 876
405
3-1. Using the air conditioning system
and defogger
3
Interior features
SIENNA_OM_OM45472U_(U)
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 temper ature for the driver and passen-
ger seats can be adjusted separately.
Press .
STEP1
STEP2
STEP3
Page 406 of 876
406 3-1. Using the air conditioning system and defogger
SIENNA_OM_OM45472U_(U)
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.
Page 407 of 876
407
3-1. Using the air conditioning system
and defogger
3
Interior features
SIENNA_OM_OM45472U_(U) 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
Page 408 of 876
408 3-1. Using the air conditioning system and defogger
SIENNA_OM_OM45472U_(U)■
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. 416)
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.