Toyota 2014 Sienna Manual page 399

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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
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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. 414)
SIENNA_OM_OM45483U_(U)
3-1. Using the air conditioning system and defogger
.
Air flows to the feet and the
windshield defogger operates.
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