{"nhtsa_id":10012670,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2005-03-10","date":"2004-02-01","document_id":"040603001","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"INCORRECT AMP CODE GENERATOR. *EH","document":null,"url":"https://open.wenmarpro.com/bulletins/10012670","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"GMC","model":"DENALI","year_from":2003,"year_to":2003,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"SAVANA","year_from":2003,"year_to":2004,"match":"exact","vehicle_ids":["2003_gmc_savana","2004_gmc_savana"]},{"make":"GMC","model":"SIERRA","year_from":2003,"year_to":2004,"match":"exact","vehicle_ids":["2003_gmc_sierra","2004_gmc_sierra"]},{"make":"GMC","model":"YUKON","year_from":2003,"year_to":2004,"match":"exact","vehicle_ids":["2003_gmc_yukon","2004_gmc_yukon"]},{"make":"HUMMER","model":"H2","year_from":2003,"year_to":2004,"match":"exact","vehicle_ids":["2003_hummer_h2","2004_hummer_h2"]}],"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":[]}