{"nhtsa_id":10052791,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2013-09-17","date":"2013-08-01","document_id":"SP-431-021","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"VOLVO TRUCK: ON SOME TRUCKS, DUE TO LOSS OF CALIBRATION AND ABILITY TO ENABLE SINGLE PTO FUNCTIONALITY, SOFTWARE UPDATES ARE AVAILABLE TO ENHANCE TRANSMISSION ELECTRONIC CONTROL UNIT (TECU). MODELS OBD2013, D11H, D13H, D16H, VHD, VN. MODEL YEARS NOT LISTED. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10052791","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"VOLVO","model":"VHD","year_from":2010,"year_to":2013,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"VN","year_from":2010,"year_to":2013,"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":[]}