{"nhtsa_id":606535,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-08-26","date":"1999-05-01","document_id":"990232002","mfr_campaign":null,"replaces":null,"component":"STEERING:HYDRAULIC POWER ASSIST SYSTEM","mfr_system":null,"summary":"SUBJECT REGARDING POWER STEERING SYSTEM NOISE CONCERNS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/606535","components":[{"id":"steering","name":"Steering","parent":null},{"id":"power-steering","name":"Power steering","parent":"steering"}],"codes":[],"topics":[],"vehicles":[{"make":"OLDSMOBILE","model":"ALERO","year_from":1999,"year_to":1999,"match":"exact","vehicle_ids":["1999_oldsmobile_alero"]},{"make":"PONTIAC","model":"GRAND AM","year_from":1999,"year_to":1999,"match":"exact","vehicle_ids":["1999_pontiac_grand-am"]}],"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":[]}