The contact owns a 2018 Ford F-150. The contact stated that the check engine warning light was illuminated. The vehicle was taken to the dealer, who reset the emissions light; however, the failure persisted. The failure became more persistent over time. The vehicle was taken to the dealer who diagnosed that there was an emissions failure due to a failed catalytic converter. The vehicle was not repaired. The manufacturer was informed of the failure and opened a case. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 80,000.