2013 Hyundai Elantra fuel system problems

My 2013 hyundai elantra with approx. 75,000 miles, and no mechanical or cosmetic issues, caught fire while parked and turned off for 10 minutes at tavern in the square restaurant in lowell, ma. Patrons who were parked nearby heard what sounded like electrical sparks and then witnessed smoke coming from the hood which then burst into flames. They ran in to retrieve my family and I and the fire department came within 10 minutes to extinguish the flames but the car was completely destroyed by that time.

I have owned my car for a little over 3 years now. I started having problems with my fob not unlocking my car. I would had to press the unlock button several times to unlock. Then I also started having problems with not being able to turn on my car(with the push start) because the brake pedal was really stiff. I had to press hard on the brake in order to successfully turn on my car. Recently I've had a check engine light come on sporadically. Sometimes the light comes on and off while during my drives in the city.