1996 Ford Explorer Owner's Manual - Page 123

Instrument Panel Controls DEF V Button Press the defrost button to obtain maximum airflow to the windshield. Adjust the temperature setting as required for defrosting. The display window will show the temperature setting and V symbol to the left of the temperature. When the outside temperature is about 50˚F (10˚C) or warmer, the air will be dehumidified to remove moisture. REAR FAN OFF Button Press this button once to turn on the rear fan circuit. Press the button again to turn the rear fan off. REAR FAN OFF will be shown in the display window above the set temperature. Operating tips The following tips will help you to get the most satisfaction from your Electronic Automatic Temperature Control system. s In humid weather, select DEF V before starting your engine. This will help to prevent windshield fogging. After a few minutes of operation, switch to AUTOMATIC or an override selection of your choice. 123