{"nhtsa_id":10055177,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2014-04-18","date":"2014-02-01","document_id":"SP-284-052","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"VOLVO TRUCKS: ON SOME TRUCKS, THE TRANSMISSION ELECTRONIC CONTROL UNIT (TECU), ENGINE CONTROL MODULE (ECM), AND AFTERTREATMENT CONTROL MODULE (ACM) HAVE AVAILABLE UPDATED SOFTWARE ENHANCEMENTS TO ADDRESS PISTON COOLING JET (PCJ) DIAGNOSTIC FAULT AND REGENERATIONS IN COLD CLIMATES (BELOW -20C). *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10055177","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"VOLVO","model":"VN","year_from":null,"year_to":null,"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":[]}