Toyota 2012 Prius Owner's Manual page 396

3-1. Using the air conditioning system and defogger
Using the steering wheel climate remote control switches
Some air conditioning features can be controlled using the switches
on the steering wheel.
Adjusting the temperature setting
Press "∧" on
the temperature.
Changing the outside air or recirculated air modes
Press
The mode switches between outside air mode and recirculated air mode
each time the switch is pressed.
PRIUS PHV_OM_OM47818U_(U)
to increase the temperature and "∨" to decrease
.
Temperature control
Outside air or recirculated
air mode
3
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