{"nhtsa_id":632413,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-07-15","date":"2002-03-08","document_id":"1101","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM","mfr_system":null,"summary":"TECHNICAL INFORMATION REGARDING BRAKE BOOSTER SEAL AT THE FIREWALL WHICH HAS CHANGED. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/632413","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"911 CARRERA","year_from":1999,"year_to":2000,"match":"base","vehicle_ids":["1999_porsche_911","2000_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":[]}