{"nhtsa_id":612098,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-06-05","date":"1999-08-01","document_id":"TSB990403","mfr_campaign":null,"replaces":null,"component":"EXTERIOR LIGHTING:TURN SIGNAL:SWITCH","mfr_system":null,"summary":"SUBJECT REGARDING IRREGULAR FLASHER OPERATION. *MJS","document":null,"url":"https://open.wenmarpro.com/bulletins/612098","components":[{"id":"lighting","name":"Lighting","parent":null},{"id":"turn-signal","name":"Turn signals","parent":"lighting"}],"codes":[],"topics":[],"vehicles":[{"make":"GULF STREAM","model":"FRIENDSHIP","year_from":1998,"year_to":1999,"match":null,"vehicle_ids":[]},{"make":"GULF STREAM","model":"SCENIC CRUISER","year_from":1998,"year_to":1999,"match":null,"vehicle_ids":[]},{"make":"GULF STREAM","model":"SUN VOYAGER","year_from":1998,"year_to":1999,"match":null,"vehicle_ids":[]},{"make":"SPARTAN","model":"AP-GT","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"SPARTAN","model":"K2 CHASSIS","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"SPARTAN","model":"MM","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":[]}