{"nhtsa_id":620123,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-07-18","date":"2001-01-01","document_id":"92262001","mfr_campaign":null,"replaces":null,"component":"TRAILER HITCHES:FIFTH WHEEL ASSEMBLY","mfr_system":null,"summary":"THIS TSI DEMONSTRATES THE PROCESS TO PROPERLY RELEASE THE FIFTH WHEEL AIR RELEASE. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/620123","components":[{"id":"trailer-hitch","name":"Trailer hitch","parent":null}],"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":[]}