{"nhtsa_id":10044079,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-05-09","date":"2012-04-30","document_id":"0800330","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:HORN","mfr_system":null,"summary":"NAVISTAR: PC AND RE BUS SERIES - REVISED HORN CONTACT ASSEMBLY. REPLACE THE PIN-STYLE ELECTRIC HORN CONTACT ASSEMBLY WITH THE IMPROVED ROLLER-WHEEL HORN CONTACT DESIGN. THIS APPLIES TO MODELS PC02500, PC04500, RE30030, AND PC05500 MODEL YEARS ARE UNKNOWN. *JS","document":null,"url":"https://open.wenmarpro.com/bulletins/10044079","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"NAVISTAR","model":"NAVISTAR","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":[]}