The contact owned a 2017 Hyundai Tucson. The contact stated that she received recall notifications for NHTSA Campaign Numbers: 17V226000 (ENGINE AND ENGINE COOLING) and 20V543000 (SERVICE BRAKES, HYDRAULIC), however, the dealer informed the contact that the parts for the recall repairs were not yet available. The contact stated that while at the stoplight, she smelled a strong burning odor. There were no warning lights illuminated. The contact stated that she was able to continue to drive the vehicle. The vehicle was not diagnosed by an independent mechanic or dealer. The contact stated that upon starting the vehicle the next day, the vehicle was shuddering and she heard abnormal knocking sounds coming from the engine. There were no warning lights illuminated. The contact stated that she was able to drive the vehicle to work; however, while her son was driving the vehicle and was at a stoplight, he saw smoke coming from underneath the hood of the vehicle. The ABS warning light, the check engine warning light, and other unknown warning lights illuminated, and the vehicle stalled. The contact stated that her son was able to restart the vehicle and he veered to the side of the road. The contact stated that as her son exited the vehicle, the engine exploded and the vehicle caught fire. There were no injuries sustained. The fire was extinguished with the assistance of the fire department. A police report was not filed. The vehicle was towed to a tow lot, where it was totaled. The