2008 Toyota Sienna Owners Manual - Page 391

08 SIENNA_U (L/O 0801) If the ambient temperature drops, the air intake mode will automatically change from RECIRCULATE to FRESH after a few minutes. This automatic change control mode can be cancelled by pushing and holding the button for longer than 2 seconds. The automatic change control mode will be reactivated if the engine switch is turned to the "LOCK" or "ACC" position. "A/C" button To turn on the air conditioning, press the "A/C" button. The "A/C" button indicator will come on. To turn the air conditioning off, press the button again. Air intake selector Press the button to select the air source. 1. Recirculate-Recirculates the air inside the vehicle. 2. Fresh-Draws outside air into the system. To prevent fogging up of the windshield, the air intake mode may change automatically to FRESH depending on the condition of the air conditioning system. 350 2008 SIENNA from Aug. '08 Prod. (OM45455U)