{"nhtsa_id":10000503,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2003-02-28","date":"2002-11-25","document_id":"754","mfr_campaign":null,"replaces":null,"component":"EXTERIOR LIGHTING:HEADLIGHTS","mfr_system":null,"summary":"INCORRECT HEADLAMP OPERATION. 2003 GM VEHICLES. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10000503","components":[{"id":"lighting","name":"Lighting","parent":null},{"id":"headlight","name":"Headlights","parent":"lighting"}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN PRODUCTS","model":"WESTERN PRODUCTS","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":[]}