{"nhtsa_id":10012554,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2005-03-07","date":"2003-07-01","document_id":"030139010","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"INSUFFICIENT HVAV SYSTEM COOLING HISSING NOISE ON ENGINE SHUT OFF. *EH","document":null,"url":"https://open.wenmarpro.com/bulletins/10012554","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HUMMER","model":"H2","year_from":2003,"year_to":2003,"match":"exact","vehicle_ids":["2003_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":[]}