1996 Ford Explorer Owner's Manual - Page 137

Steering Column Controls To clean the windshield, push in the end of the wiper knob for a single wipe. For a constant spray, keep the knob pushed in. After you release the knob, the wipers operate for two to three cycles before turning off (if wipers were off) or returning to the interval setting selected. Do not try to clean the windshield when the washer fluid container is empty or activate the washers at any time for more than 15 seconds continuously. This could damage the washer pump system. NOTE: The addition of shields to the front of the vehicle, as used to deflect bugs, may also adversely affect the washer system from delivering fluid to the windshield. Devices such as bug shields are not recommended to be added to your vehicle. RWARNING In freezing weather, the washer solution may freeze on the windshield and obscure your vision. Always warm up the windshield with the defroster before you use the washer fluid. If you cannot see through the windshield clearly, it can increase the risk of being involved in a collision. For information about refilling the washer fluid or replacing your windshield wiper blades, see Windshield washer fluid and Wipers in the Index. 137