{"nhtsa_id":10044346,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-06-14","date":"2012-06-01","document_id":"SP-491-030","mfr_campaign":null,"replaces":"SP-491-030-2","component":"EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT","mfr_system":null,"summary":"VOLVO TRUCKS: THE O RINGS WERE INSTALLED ON TRANSMISSIONS INCORRECTLY AT TIME OF ASSEMBLY, CAUSING TRANSMISSION FLUID LOSS AND/OR DAMAGE TO TRANSMISSION, PREMATURELY. *PE UPDATED 8/21/12. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10044346","components":[{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"VOLVO","model":"VAH","year_from":2012,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"VHD","year_from":2012,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"VNL","year_from":2012,"year_to":2012,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}