The contact owns a 2016 Kia Soul. The contact stated that upon starting the vehicle, the engine was smoking. There was smoke coming from the rear of the vehicle. The check engine warning light was illuminated. The contact stated that the catalytic converter message was displayed. The contact stated that the failure was related to NHTSA Campaign Number 19V120000 (Engine, Engine and Engine Cooling). The vehicle was taken to an independent mechanic who determined that the check engine warning light was illuminated due to the catalytic converter. There was an issue with the engine. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted, but no additional assistance was provided. The failure mileage was approximately 90,000.