The contact leased a 2021 Kia Seltos. The contact stated that while his son was driving in traffic, he heard an abnormal banging noise and noticed smoke emerging from the engine compartment. The driver was able to pull off the road and exit the vehicle. The vehicle spontaneously caught fire and was engulfed in flames. The fire department was on the scene to extinguish the fire. The driver did not sustain any injuries. There were no police reports filed. The vehicle was towed to an independent lot. The contact called the local dealer but the vehicle was not diagnosed or repaired. The manufacturer was notified but no additional assistance was provided. The approximate failure mileage was 21,000. VIN was not available. The contact stated the failure was related to NHTSA Campaign Number 21V259000 (Engine).