{"nhtsa_id":10034192,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2010-10-25","date":"2010-03-31","document_id":"SB-3029","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:HORN; EQUIPMENT:ELECTRICAL","mfr_system":null,"summary":"MCI: CONTROLS ELECTRIC HORN HARNESS. POTENTIAL FOR DELAYED HORN RESPONSE ON D MODEL COACHES EQUIPPED WITH I/O CONTROLS. THE FOLLOWING RETROFIT PROCEDURE IS APPLICABLE TO D SERIES COACHES EQUIPPED WITH I/O CONTROLS BETWEEN THE RANGE OF, AND INCLUDING, UNIT NUMBERS 55951 TO 55958 AND 56167 TO 59340. NO MODEL YEARS LISTED. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10034192","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MCI","model":"D SERIES","year_from":1998,"year_to":1998,"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":[]}