The contact owns a 2015 Dodge Durango. The contact stated that while the vehicle was parked, the contact returned to the vehicle to retrieve a work bag from the trunk. The contact noticed that there was smoke inside the vehicle, and flames were coming from underneath the front passenger's side seat. The contact was able to extinguish the fire with his breath, hand, and a cloth; however, the smoke persisted. The fire department was contacted and arrived at the scene. The fire department confirmed that the fire originated from the battery. No police report or fire department report was filed. The vehicle was towed to an autobody repair shop by the insurance company for an estimate of the repair. The contact sustained smoke inhalation but had not yet received medical assistance. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 154,000.