{"nhtsa_id":614453,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-10-17","date":"2000-07-01","document_id":"3228","mfr_campaign":null,"replaces":"3228","component":"SUSPENSION","mfr_system":null,"summary":"GENERAL INFORMATION REGARDING NEW MEDIUM DUTY AIRLINER HEIGHT CONTROL VALVE ADJUSTMENT. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/614453","components":[{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"BUSINESS CLASS","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":[]}