The contact owns a 2017 Ford Fusion. The contact stated that while driving at 40 MPH, the brake pedal was depressed; however, the vehicle failed to stop immediately causing the contact to rear end the vehicle in front of her. The contact sustained injuries to her neck and back but did not receive medical attention. A police report was filed.The vehicle was taken to a brake specialist, who informed the contact there was no brake fluid in the vehicle due to a leak on the front brake flexible hose. The contact related the failure to NHTSA Campaign Number:  23V162000 (Service Brakes, Hydraulic). The manufacturer was not made aware of the failure. The failure mileage was approximately 80,000.