{"nhtsa_id":618267,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-04-10","date":"2001-02-01","document_id":"010201","mfr_campaign":null,"replaces":null,"component":"EXTERIOR LIGHTING","mfr_system":null,"summary":"SOME VEHICLES COULD EXHIBIT A NOTICEABLE DIMMING OF THE INTERIOR OR EXTERIOR LIGHTING ON THE VEHICLE DURING OPERATION. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/618267","components":[{"id":"lighting","name":"Lighting","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"IMPALA","year_from":2000,"year_to":2001,"match":"exact","vehicle_ids":["2000_chevrolet_impala","2001_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":[]}