The contact owns a 2007 Dodge Nitro. The contact stated that the air bag warning light was illuminated. The vehicle was taken to an unknown dealer, where the vehicle was repaired under NHTSA Campaign Number: 13V121000 (Power Train, Air Bags, Structure); however, the failure persisted. The vehicle was taken back to the dealer but was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.