2008 Toyota Prius Owners Manual - Page 240

3-2. Using the air conditioning system and defogger n Switching between outside air and recirculated air modes Press . The mode switches between (recycles air inside the vehicle) and (introduces air from outside the vehicle) modes each time the button is pressed. l When the system is switched to automatic mode, the air conditioning system operates automatically. However, recirculated air mode will be activated if it is selected manually. l If the hybrid system us turned off in the outside air mode, the automatic control of the air intake is activated when the hybrid system is turned on again. indicator will come on in the instrument cluster while the recirculated air mode is selected. Defogging the windshield Press . The air conditioning system control operates automatically. indicator will come on in the instrument cluster while the windshield air flow mode is on. ITY32P007 212 PRIUS_U_(L/O_0802)