2009 Toyota Prius Owners Manual - Page 237

OM47614U_PRIUS_U.book Page 209 Monday, January 11, 2010 11:02 AM 3-2. Using the air conditioning system and defogger Adjusting the position of and opening and closing the air outlets Front outlets Direct air flow to the left or right, up or down Turn the knob to open or close the vent 3 n Using the automatic mode Fan speed is adjusted automatically in accordance with the temperature setting and ambient conditions. As a result, the following may occur. l The system may switch automatically to recirculated mode when the coolest temperature setting is selected in summer. l Immediately after the switch is pressed, the fan may stop for a while until warm or cool air is ready to flow. n Using the system in recirculated air mode The windows will fog up more easily if the recirculated air mode is used for an extended period. n Window defogger feature Recirculated air mode may automatically switch to in situations where the windows need to be defogged. n Outside temperature approaches 32°F (0°C). The air conditioning system may not operate even when n 2-way air intake control To improve fuel economy, OUTSIDE AIR mode control changes when the air intake selector is set in OUTSIDE AIR on the following conditions: l When the maximum heating is needed with the air flow in "Floor" or "Floor/Windshield", fresh air flows in the upper compartment, while air is recirculated in the lower compartment. l When cooling is needed, both fresh and recirculate modes turn on. (outside air) mode Interior features is touched. 209 PRIUS_U_(OM47614U)