Catalytic Convertor problems of the 2021 Kia Motor Telluride

The contact owns a 2021 kia Telluride. The contact stated while driving approximately 65 mph there was a loud rattling sound that came from under the vehicle. There were no warning lights illuminated. The contact then pulled over safety. The contact stated there were parts of the vehicle that fell onto the highway. When the contact was on the side of the vehicle they checked under the hood, and located smoke and fire from the engine. The contact exhausted the flames with liquid from a nearby driver. The chp and fire arrived on the scene; however, the fire was extinguished by the time of their arrival. There was no chp report filed that the contact was aware of. There were no injuries or medical treatments needed. The vehicle was towed to the local dealer and diagnosed two pistons came from the engine, and it was a catalytic failure. The vehicle currently being repaired. The manufacturer was notified of the failure. The approximate failure mileage was 15,000.