{"nhtsa_id":10004990,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-01-22","date":"2003-09-29","document_id":"092903","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"ENGINEERING INVESTIGATION OF DIAGNOSTIC TROUBLE CODE (DTC) P0756. MAKE/MODEL UNKNOWN. MODEL YEAR 2003 AND 2004. GM VOICEMAIL LOG. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10004990","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":["P0756"],"topics":[],"vehicles":[{"make":"UNKNOWN","model":"UNKNOWN1","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":[]}