PITSTOP: BLOCKED WINDSHIELD WASHER NOZZLES ON VEHICLES EQUIPPED WITH WASHER HEATERS - This Pitstop provides information regarding blocked windshield wiper nozzles on some 2016MY~ Sorento (UMa) and 2017MY~ Sportage (QL) vehicles equipped with windshield washer heaters (A). Mixing tap water (?) and concentrated windshield washer fluid can cause corrosion of the heater element due to the mineral content of tap water.