{"nhtsa_id":10055552,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2014-06-10","date":"2014-03-10","document_id":"TIB-E-081","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE; ENGINE","mfr_system":null,"summary":"KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. UPDATED SOFTWARE INFORMATION, ON ENGINES, REGARDING CHASSIS BUILT 01/2009-02/20013. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10055552","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"KENWORTH","year_from":2003,"year_to":2003,"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":[]}