Vsa Warning Light On problems of the 2012 Hyundai Sonata

The contact owns a 2012 Hyundai Sonata. While operating the vehicle, the front passenger side seat belt sensor light would intermittently flash off and on although the passenger seat was unoccupied. Eventually, the front passenger side air bag sensor light would also flash off and on when a passenger was not present. The check engine light also illuminated. While driving approximately 60 mph, the stability control esc sensor light illuminated and the vehicle would not accelerate. After shutting the vehicle off and restarting the engine, the vehicle operated as normal. The vehicle was taken to the dealer. No additional information was available. The manufacturer was not notified of the failures. The failure mileage was 18,000.