1999 Toyota Sienna Owners Manual - Page 164

name. SIENNA (45403U) -Side vents Defrosting The outside of the windshield For best results, set controls to: Fan speed-Any setting except "OFF" Temperature-Towards WARM (red zone) Air intake-FRESH (outside air) Air flow-WINDSHIELD Turning the air flow control knob to windshield position turns on the defroster − linked air conditioning. This is to clean up the front view more quickly. When the "A/C" button is not pressed in, turning the air flow control knob to another position turns off the air conditioning. If air flow control is not satisfactory, check the side vents. The side vents may be opened or closed as shown. Driver's side D To heat the vehicle interior while defrosting the windshield, floor/windshield air flow. choose Passenger's side 164