The contact owns a 2000 Toyota Avalon. The contact stated that the brake line was leaking brake fluid. The brake pedal was depressed and went to the floorboard. The contact stated that the subframe and rear axle were rusted. The contact had replaced the brakes. The contact stated that the failure was related to NHTSA Campaign Number 00V154000 (Suspension). The contact called the independent mechanic, who determined that a brake line replacement was needed. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted, but no additional assistance was provided. The failure mileage was approximately 278,000.