{"nhtsa_id":622959,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-10-25","date":"2001-03-01","document_id":"010603003","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR","mfr_system":null,"summary":"SOME DRIVERS MAY COMMENT THAT THE GENERATOR UPPER MOUNTING BOLT IS BREAKING ON CERTAIN CONVENTIONAL MEDIUM DUTY MODELS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/622959","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"alternator","name":"Alternator","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"C6","year_from":1996,"year_to":1996,"match":"exact","vehicle_ids":["1996_chevrolet_c6"]},{"make":"CHEVROLET","model":"C6500","year_from":1997,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"C7","year_from":1996,"year_to":1996,"match":"exact","vehicle_ids":["1996_chevrolet_c7"]},{"make":"CHEVROLET","model":"C7500","year_from":1997,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"C6","year_from":1996,"year_to":1996,"match":"exact","vehicle_ids":["1996_gmc_c6"]},{"make":"GMC","model":"C6500","year_from":1997,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"C7","year_from":1996,"year_to":1996,"match":"exact","vehicle_ids":["1996_gmc_c7"]},{"make":"GMC","model":"C7500","year_from":1997,"year_to":2000,"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":[]}