{"nhtsa_id":603826,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-03-08","date":"1998-09-01","document_id":"833004","mfr_campaign":null,"replaces":null,"component":"SUSPENSION","mfr_system":null,"summary":"EXPERIENCING SHAKE / VIBRATION IN STEERING WHEEL, FLOOR, SEAT AT HIGHWAY SPEEDS ON SMOOTH ROADS. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/603826","components":[{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"PARK AVENUE","year_from":1997,"year_to":1999,"match":"exact","vehicle_ids":["1997_buick_park-avenue","1998_buick_park-avenue","1999_buick_park-avenue"]},{"make":"BUICK","model":"RIVIERA","year_from":1995,"year_to":1999,"match":"exact","vehicle_ids":["1995_buick_riviera","1996_buick_riviera","1997_buick_riviera","1998_buick_riviera","1999_buick_riviera"]},{"make":"CADILLAC","model":"SEVILLE","year_from":1998,"year_to":1999,"match":"exact","vehicle_ids":["1998_cadillac_seville","1999_cadillac_seville"]},{"make":"OLDSMOBILE","model":"AURORA","year_from":1995,"year_to":1999,"match":"exact","vehicle_ids":["1995_oldsmobile_aurora","1996_oldsmobile_aurora","1997_oldsmobile_aurora","1998_oldsmobile_aurora","1999_oldsmobile_aurora"]}],"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":[]}