{"nhtsa_id":612993,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-06-14","date":"1998-07-01","document_id":"98019A","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, AIR","mfr_system":null,"summary":"SOME VEHICLES EQUIPPED WITH AIR BRAKES AND ANTI-LOCK BRAKE SYSTEMS, MAY EXHIBIT BRAKE CONTROL ELECTRICAL HARNESS CHAFING. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/612993","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"B7","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_chevrolet_b7"]},{"make":"CHEVROLET","model":"C6500","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"C7500","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"B7","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_gmc_b7"]},{"make":"GMC","model":"C6500","year_from":1998,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"C7500","year_from":1998,"year_to":1998,"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":[]}