The contact owns a 2018 Toyota Camry. The contact stated that as his wife was pulling into the residence driveway at approximately 3 MPH the vehicle had a brake failure. The contact stated that the wife's vehicle hit the rear of another vehicle in the driveway. The contact stated that there was damage to the front bumper and the passenger-side rear bumper of the second vehicle. The contact stated that his wife did not notice any warning lights were illuminated. The contact had not taken the vehicle to a local dealer and the vehicle had not been diagnosed or repaired. The contact relates the brake failure to NHTSA Campaign Number: 21V890000 (Service Brakes, Hydraulic). The manufacturer had been informed of the failure. The failure mileage was approximately 50,000.