{"nhtsa_id":634604,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-03","date":"2002-05-01","document_id":"020846007","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"CERTAIN 2001-2002 PASSENGER CARS AND LIGHT DUTY TRUCKS EQUIPPED WITH ONSTAR MAY EXHIBIT A CONDITION IN WHICH THE ONSTAR CALL CENTER IS UNABLE TO REPLENISH A CUSTOMERS PERSONAL CALLING MINUTES. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/634604","components":[],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"BUICK","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CADILLAC","model":"CADILLAC","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"CHEVROLET","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"GMC","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"OLDSMOBILE","model":"OLDSMOBILE","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"PONTIAC","model":"PONTIAC","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"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":[]}