2009 Toyota Sienna Owners Manual - Page 277

3-1. Using the air conditioning system and defogger Right and left side outlets Direct air flow to the left or right, up or down. Turn the knob to open or close the vent. 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 Immediately after is pressed, the fan may stop for a while until 3 Interior features warm or cool air is ready to flow. l Cool air may flow to the area around the upper body when the heater is on. 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 In order to prevent the windows from fogging up, recirculated air mode may automatically switch to outside air mode if the ambient temperature drops. n Temperature display The temperature display (English/U.S. Customary System and metric units) on the trip information display can be changed. (→P. 183) n When outside temperature approaches 32°F (0°C) The air conditioning system may not operate even when is pressed. 251