{"nhtsa_id":6089270,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-01-18","date":"1999-09-01","document_id":"9936013","mfr_campaign":null,"replaces":null,"component":"EXTERIOR LIGHTING:HEADLIGHTS","mfr_system":null,"summary":"SOME VEHICLES MAY EXHIBIT A VERY SLIGHT DIMMING OF THE HEADLAMPS FOR A FEW SECONDS DURING VARIOUS CONDITIONS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/6089270","components":[{"id":"lighting","name":"Lighting","parent":null},{"id":"headlight","name":"Headlights","parent":"lighting"}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"SONATA","year_from":1999,"year_to":1999,"match":"exact","vehicle_ids":["1999_hyundai_sonata"]}],"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":[]}