The contact owned a 2015 Infinity QX60. The contact stated that while his wife was stopped at a traffic light, black smoke was emitting from under both front seats, and entered the interior of the cab. The contact's wife returned to the work parking lot, however, the black smoke and flames were excessive and immediately exited the vehicle. No warning lights were illuminated. All the air bags deployed. The contact's wife was transported to the hospital by co-workers. The doctor examined that the contact's wife had sustained 2nd degree burns on both arms and hands that required medical attention. The Fire and Police reports were filed. The vehicle was consumed by the fire and destroyed. The vehicle was towed to an unknown location. The manufacturer was notified of the failure. The contact notified her insurance company. The failure mileage was approximately 95,000.