NHTSA Complaint #11694814 — 2022 CHEVROLET EXPRESS

I have 2023 Jayco Redhawk SE mounted on a Chevy Express 4500 Cutaway chassis with only 5300 miles on it. Chevrolet dealer ran diagnostics and replaced an ABS sensor which had no impact on the problem. I have an appointment to have it looked at by another dealership recommended by Chevy Customer Service. It is not safe to drive, going up straight steep grades on the interstate the right rear wheel keeps locking up under acceleration. Best I can tell the system just starts braking hard on the right rear and maybe both rear wheels even though you are trying to accelerate. It gets worse on steep entrance and exit ramps or steep curvy roads. Almost always when this happens there is traffic following closely at highway speeds (55 to 70 MPH).