Some 2015-2018 Explorer vehicles equipped with Hankook brand tires may exhibit chipping, cutting and/or unusual or even accelerated tread wear. If the tire side wall is marked as: 255/50R20 105H Ventus S1 Noble 2 contact Hankook Technical Service for possible pro-rated tire replacement. This may not be the result of improper alignment. For Hankook contact information refer to the Tire Warranty information located on FMCDealer.com.