The contact owns a 2019 Ram 1500. The contact stated that while her husband was driving approximately 50-55 MPH, the ABS warning light illuminated. The 4WD not available message was displayed. The contact stated that the vehicle was fishtailed while driving. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was unknown.