2021 Chassis Class A Motorhomes

We bought a new 2021 Newmar Bay Star w/ the Ford F53 chassis. Immediately ABS and traction control lights came on. Spent a month in Ford service department. Front left wheel speed sensor replaced. Did not fix problem. ECBM replaced. Did not fix problem. Wire harness overlay replaced. Did not fix problem. Left front tone ring assembly replaced. Fixed problem for 200 miles. Spent 12 days in another Ford Service Department. Wire harness overlay replaced again. So far, ABS and TCS lights have stayed off. Just spent 16 days in Ford service department for rear axle safety recall. At the suggestion of someone in another forum, we filled out a complaint form on the NHTSA website. I guess if enough people do, the NHTSA might investigate and a recall might result.