2008 Hyundai Santa FE electrical system problems

Tl* the contact owns a 2008 hyundai santa fe. While driving 45 MPH, the passenger side seat became excessively hot. The passenger observed that the seat was on fire. A fire report was not filed. The contact extinguished the fire. The passenger sustained burn injuries to her hands and buttocks but did not receive medical attention. The vehicle was not diagnosed nor repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 120,002.

I lost power steering and power brakes while stopped at a stop sign going up a very steep grade. I was unable to shift into park so that I could turn my car off. I had to lay on the brake with all my weight to keep from rolling backwards into cars behind me. There were no warning lights. After a minute, which felt like much longer, I was able to shift to park and turn my car off and back on. The second time I lost all power, was a couple months later. I was going about 40 MPH on a curvy hilly road.