{"nhtsa_id":10009224,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-09-17","date":"2004-04-19","document_id":"04192004","mfr_campaign":null,"replaces":null,"component":"EXTERIOR LIGHTING:HEADLIGHTS","mfr_system":null,"summary":"AS A RESULT OF A RECENT CHANGE IN THE HEADLAMP REFLECTOR, IT IS NOW POSSIBLE TO ELIMINATE THE HEADLAMP BULB SHIELD ON THE LOW BEAM BULB OF THE HEADLAMP ASSEMBLY WITHOUT ANY NOTICEABLE CHANGE IN LIGHTING PERFORMANCE. GM VOICEMAIL EXPRESS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10009224","components":[{"id":"lighting","name":"Lighting","parent":null},{"id":"headlight","name":"Headlights","parent":"lighting"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"IMPALA","year_from":2004,"year_to":2004,"match":"exact","vehicle_ids":["2004_chevrolet_impala"]}],"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":[]}