The contact owns a 2018 Ram 3500. The contact stated while driving at an undisclosed speed, the ABS warning light illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the HCU. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic); the VIN was included, but parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The failure mileage was 39,000. VIN tool confirms parts not available.