The contact owns a 2008 Kia Sorento. The contact stated that while operating the vehicle a burning odor and smoke were present inside the cabin of the vehicle. Also, the engine had stalled while driving and the vehicle would not properly accelerate while driving on inclined roads. The cause of the failures was not yet determined. The contact indicated that the failures began after the vehicle was serviced under the NHTSA Campaign Number: 20v088000 (Electrical System, service brakes) which involved a fire hazard. The local dealer was informed of the failures. The manufacturer was not yet contacted. The failure mileage was 181,000.