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Wipers and WashersUse the rotary control to adjust thesensitivity of the rain sensor. With lowsensitivity, the wipers will operate whenthe sensor detects a large amount ofmoisture on the windshield. With highsensitivity, the wipers will operate whenthe sensor detects a small amount ofmoisture on the windshield.Keep the outside of the windshield cleanbecause the rain sensor is very sensitive. Ifthe area around the interior mirror is dirty,then the wipers may turn on, for example,if dirt, mist or insects hit the windshield.A wipe will occur a few seconds afterwashing to clear any remaining washerfluid. You can switch this feature on or offin the information display. SeeInformation Displays (page 87).WINDSHIELD WASHERSNote: Do not operate the wipers on a drywindshield. This may scratch the glass,damage the wiper blades or cause the wipermotor to burn out. Always use thewindshield washer before wiping a drywindshield.Note: Do not operate the washers whenthe washer reservoir is empty. This maycause the washer pump to overheat.E172818• A brief press causes a single wipewithout washer fluid.• A brief press and hold causes thewipers to swipe three times withwasher fluid.• A long press and hold will turn on thewipers and washer fluid for up to 10seconds.70F150 (TF6) , enUSA