2004 Toyota Prius Owners Manual - Page 196

If manual fan speed control is desired- If manual switching of air intake is desired- If recirculated air is used during heating, the windows will fog up more easily. If the hybrid system is turned off in the OUTSIDE AIR mode, the automatic control of the air intake is activated when the hybrid system is turned on again. 27p114a 2−way air intake control 27p115a To improve fuel economy, OUTSIDE AIR mode control changes when the air intake selector is set in OUTSIDE AIR on the following conditions: D When the maximum heating is needed 1. Fan speed at low 2. Fan speed at high The fan speed can be set to your desired speed by touching the appropriate air flow control switch. The higher the fan speed is, the more air is delivered. Touching the "OFF" switch turns off the fan. The air intake control switch is used to switch the air intake between the OUTSIDE AIR mode and RECIRCULATED AIR mode. With the switch in the OUTSIDE AIR mode, the system will take fresh outside air into the vehicle. If quick circulation of cooled air is desired, touch the air intake control switch for RECIRCULATED AIR. The indicator will come on in the instrument cluster while the RECIRCULATED AIR mode is selected. with the air flow Windshield", fresh per compartment, lated in the lower in "Floor" or "Floor/ air flows in the upwhile air is recircucompartment. D When cooling is needed, both fresh and recirculate modes turns on. To remove exterior windshield frost, use the high speed setting. The selected mode is highlighted in green. 184