{"nhtsa_id":10056335,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2014-11-04","date":"2014-07-01","document_id":"SB-00-15","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE","mfr_system":null,"summary":"WESTERN STAR: REFERENCE PERTAINING TO TRAINING, FOR INITIAL DIAGNOSIS OF VIBRATION AND HARSH RIDE PROBLEMS. MODEL CONSTELLATION, HERITAGE, 4700, 4800, 4900, 5900, 6900. NO MODEL YEARS. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10056335","components":[{"id":"structure-body","name":"Body and frame","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN STAR","model":"WESTERN STAR","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":[]}