2004 Toyota Sienna Navigation Manual - Page 485

04 SIENNA_U (L/O 0408) Defrosting -The outside of the windshield For best results, set controls to: Fan speed-Any setting except "OFF" Temperature-Towards WARM (red zone) Air flow-WINDSHIELD Turning the air flow selector to the windshield or floor/windshield position turns on the defrosting function with the purpose of clearing the front view. When turning the air flow selector to the windshield or floor/windshield position, the air intake selects FRESH automatically. This is to clean up the front view more quickly. Press the "A/C" button for dehumidified heating. This setting clears the front view more quickly. D To heat the vehicle interior while defrosting the windshield, floor/windshield air flow. choose 303 2004 SIENNA from Aug. '04 Prod. (OM45422U)