1996 Toyota Previa Owners Manual - Page 113

(e) Air flow selection FACE position-This position directs the air flow to face level. BI-LEVEL position-This position directs the air flow to face level, the floor and rear area. FLOOR position-This position directs the air flow mostly to the floor and rear area. When there are passengers in the rear seats, this position is recommended for the most effective heating results for the rear passengers. FLOOR / WINDSHIELD position-This position directs the air flow to the windshield as well as the floor and rear area. WINDSHIELD position-This position directs the air flow mostly to the windshield and front side windows. (f) Operating tips S If air control is not satisfactory, check the dashboard vents. (See "Side vents" and "Center vents" after "Rear cooler controls".) S When driving on dusty roads, close all windows. If dust thrown up by the vehicle is still drawn into the vehicle after closing the windows, it is recommended that the air intake control lever be set to the OUTSIDE AIR position and the fan speed control lever anywhere except the "OFF" position. S If following another vehicle on a dusty road, or driving in windy and dusty conditions, it is recommended that the air intake control lever be temporarily set to the RECIRCULATED AIR position, which will close off the outside passage and prevent outside air and dust from entering the vehicle interior. 107