The contact owns a 2018 Ram 3500. The contact stated that while driving at an undisclosed speed, the traction control and brake warning lights illuminated. The vehicle was taken to the dealer where it was diagnosed and determined there was no communication with the HCU brake controller. The contact was informed that the part for the recall repair was not available. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was 83,000. VIN tool confirms parts not available.