{"nhtsa_id":635586,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-25","date":"2002-07-22","document_id":"4650","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC","mfr_system":null,"summary":"CONCERNS WITH CORROSION ON THE BRAKE DISCS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/635586","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"911 CARRERA","year_from":1999,"year_to":1999,"match":"base","vehicle_ids":["1999_porsche_911"]}],"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":[]}