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.