2017 Jeep Grand Cherokee electrical system problems

Not sure what component caused the vehicle to burst into flames. It is no longer (to the best of my knowledge) available for inspection (unless still at tow yard). The Jeep burned, caught another vehicle in the driveway on fire, as well as fence separating neighbor's house, and spread to structure (my house). Vehicle was inspected by ins. reps/others. It was taped off as battery was still live. Fire report states vehicle fire. Car was parked in driveway and was not driven for two days. No prior warnings or recalls.

Got in vehicle to leave school and dash board lights lit up like a xmas tree but car would not start. After 20 mins of trying if finally started but power steering was out. Took car to dealership, they drove it for a week before problem replicated and died twice on the road. They have had it 2 weeks now thinking it might be a pinched wire. Somewhere likely in the drivers side door. Will get back to me monday, april 1, 2019