The contact owns a 2017 Ford Explorer. The contact stated that the rear driver’s side air bag warning light was intermittently illuminated while driving at various speeds. The vehicle was taken to the dealer for a diagnostic, and the contact was informed that the air bag wiring harness needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure,e and a case was filed. The contact was then referred to the NHTSA Hotline to report the failure. The failure mileage was 45,000.