2011 Lexus IS 350 User Guide - Page 233

3-1. Using the air conditioning system and defogger Rear outlets Direct air flow to the left or right, up or down Turn the knob fully to the outside of the vehicle to 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 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 Switching between outside air and recirculated air modes Recirculated air mode or outside air mode may be automatically switched to in accordance with the temperature setting and the inside temperature. When the retractable hardtop is opened, recirculated air mode is automatically selected. n Window defogger feature Recirculated air mode may automatically switch to ations where the windows need to be defogged. n When outside air temperature approaches 32°F (0°C) (outside air) mode in situ- The air conditioning system may not operate even when is pressed. 242