Tl* the contact owns a 2013 kia rio equipped with kumho solus kh25 tires, size: p185/65r15 (na). while driving approximately 30 mph, the tire pressure warning light illuminated. the vehicle was taken to a dealer; however, the failure was undetermined. the contact was informed that all four tires needed air. the tires were inflated, but the failure recurred. the vehicle was taken back to several dealers where it was diagnosed that all four tires were worn unevenly and needed to be replaced. the tires were not replaced. the manufacturer was not notified of the failure. the tire and vehicle failure mileage was 25,000. the dot number was unavailable.