The contact owns a 2018 Ram 3500. The contact stated while driving at an undisclosed speed on an icy road surface, the contact almost lost control of the vehicle because the traction control was inoperable. Several unknown warning lights were illuminated. The contact pulled over to the side of the road. The contact was able to continue driving at 10 MPH. The vehicle was taken to the dealer, where it was diagnosed and determined that the HCU unit and the ABS control module needed to be replaced. The vehicle was not repaired due to the cost. The contact later received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic), which the contact related to the failure; however, the part to do the recall repair was not yet available. The local dealer was contacted. The vehicle was not repaired. 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. The failure mileage was approximately 31,270. VIN tool confirms parts not available.