If the threads corrode, a sudden loss of brake fluid could result, causing a loss of the front brakes, and increasing the risk of a crash. Harley-Davidson will notify owners, and dealers will flush and inspect the front brake master cylinder and, if necessary, replace the master cylinder, free of charge. The recall is expected to begin on January 14, 2015. Owners may contact Harley-Davidson customer service at 1-800-258-2464. Harley-Davidson's number for this recall is 0163 and 0164. Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.