While driving a 2020 Kia Forte on the expressway at normal speed, the vehicle was operating normally with no prior warning lights or known issues. Suddenly, the brakes began to feel weak, as if they were failing. Immediately after, a popping sound was heard from the vehicle, followed by smoke coming from the side/underneath area. Within moments, the smoke intensified and the vehicle caught fire. The driver pulled over to the side of the road as quickly as possible. The fire spread rapidly, and within approximately 1â2 minutes the vehicle was fully engulfed in flames. There were no prior warning indicators, messages, or symptoms before the incident. The cause of the fire is currently unknown. The vehicle is available for inspection by insurance or manufacturer if needed. The incident created an immediate safety hazard due to loss of braking performance and rapid fire spread while driving at highway speed.