Heel/Toe Wear
WARNING: This page is about a different car, the 2012 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
Heel/toe wear (also known as feathering) occurs along the outside or inside edge/shoulder of the tire. Visually inspect the tires in both the inside and outside shoulder ribs to determine whether the tires have this type of wear. In some instances, the difference in tread depth of leading versus trailing edge of each lug in the inside and outside shoulder rib may need to be measured.