The battery under my passenger seat caught on fire. The car was completely turned off and parked in my driveway. When I went to leave I opened the car door and black smoke was rolling out. 30 minutes prior I drove the car and there was no warning lights or issues. It was driving like normal. The car is currently being inspected by Jeep and my insurance. My husband and I's safety would have been at risk if we did not catch the fire as soon as we did, not only our lives but it could have hurt our neighbors who live close. As we were outside working when the fire started you could not smell or see the smoke coming out of the car.