{"nhtsa_id":634915,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-10","date":"2002-04-01","document_id":"020232005A","mfr_campaign":null,"replaces":"020232005","component":"STEERING:HYDRAULIC POWER ASSIST SYSTEM","mfr_system":null,"summary":"SUBJECT REGARDING EXCESSIVE NOISE FROM POWER STEERING SYSTEM WHILE TURNING OR UNDER LIGHT BRAKING. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/634915","components":[{"id":"steering","name":"Steering","parent":null},{"id":"power-steering","name":"Power steering","parent":"steering"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"ASTRO","year_from":1999,"year_to":2002,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"SAFARI","year_from":1999,"year_to":2002,"match":"exact","vehicle_ids":["1999_gmc_safari","2000_gmc_safari","2001_gmc_safari","2002_gmc_safari"]}],"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":[]}