{"nhtsa_id":10055990,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2014-08-08","date":"2014-05-01","document_id":"FSB-593-012","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL","mfr_system":null,"summary":"VOLVO TRUCK: DUE TO INTERNAL BUILD UP CONTAMINATION OF GRIME, SALT, ROAD DEBRIS, IN HARSH ENVIRONMENTS, CAUSES SOLENOID VALVE TO MALFUNCTION AND TRAILER BRAKE CIRCUIT TO MAINTAIN TRAILER BRAKE PRESSURE AFTER HILL START ASSIST EVENT. MODEL VHD, VN, VT, VAH. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10055990","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"VOLVO","model":"VAH","year_from":2008,"year_to":2014,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"VHD","year_from":2008,"year_to":2014,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"VN","year_from":2008,"year_to":2013,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"VT","year_from":2008,"year_to":2014,"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":[]}