{"nhtsa_id":10052726,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2013-09-10","date":"2013-08-02","document_id":"SB-E-072","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. INFORMATION INVOLVING A CHASSIS SOFTWARE UPDATE. BUILT BETWEEN 1/1/2013 AND 7/26/2013 OPERATED BY PACCAR MX-13 EPA2013 ENGINES. *JS","document":null,"url":"https://open.wenmarpro.com/bulletins/10052726","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"KENWORTH","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":[]}