Kia says in documents that it will send notification letters to owners starting Nov. 14. For Hyundai the date is Nov. 21. Hyundai reported 21 fires in the affected vehicles in the U.S., and another 22 "thermal incidents" including smoke, burning and melting of parts, the documents say. Kia reported 10 fires and melting incidents. Hyundai said in a statement that owners can continue to drive the vehicles and that no crashes or injuries have been reported. The automaker said it was issuing the recall to ensure the safety of its customers. The company said an O-ring in the antilock brake motor shaft can lose sealing strength over time due to the presence of moisture, dirt and dissolved metals in the brake fluid, causing leaks. The new fuse limits the operating current of the brake module, the statement said. In a statement, Kia said an engine compartment fire could happen in the area of the brake control unit due to an electrical short that results in excessive current.