The contact’s husband owns a 2020 Ram 2500. The contact stated that the check engine warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed that the diesel particulate filter had failed due to the high-pressure fuel pump (HPFP) failure, which caused metal shavings to enter the fuel system. The dealer determined that the HPFP and the entire fuel system needed to be replaced. The dealer informed the contact that the manufacturer had offered to partially cover the repair cost through goodwill assistance. The vehicle was not repaired. The contact stated that the vehicle was previously repaired under NHTSA Campaign Number: 21V880000 (Fuel System, Diesel); however, the recall repair failed to fix the failure. The manufacturer was notified of the failure and a case was filed; however, the manufacturer had failed to respond to the contact’s follow-up emails and calls. The failure mileage was approximately 126,513.