{"nhtsa_id":601420,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1998-08-04","date":"1998-05-01","document_id":"838125","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:GLASS, SIDE/REAR","mfr_system":null,"summary":"CONDITIONS WITH REAR WINDOW DEFOGGER INOPERATIVE. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/601420","components":[{"id":"visibility","name":"Glass, wipers and mirrors","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"CORVETTE","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_chevrolet_corvette"]}],"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":[]}