The contact owned a 2007 Dodge Nitro. The contact received notification of NHTSA Campaign Number: 13V121000 (POWER TRAIN, AIR BAGS, STRUCTURE). The contact stated that while stopped, the sound of an explosion was heard, and the side air bags deployed. The contact believed the vehicle had been struck by another vehicle. The contact suffered injuries to the neck and had issues with his hearing. The contact stated that medical attention was not required. A Police report was not filed. The vehicle was towed to the residence, and then towed to the dealer, where it was diagnosed that the underbody shield was striking the drive shaft while driving. The vehicle was not repaired. The manufacturer advised the contact that a field inspector would be sent to inspect the vehicle. The field inspector inspected the vehicle and the contact was awaiting the results. The failure mileage was approximately 78,000.