{"nhtsa_id":10049801,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2013-01-19","date":"2012-09-11","document_id":"SB-45-045","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE; ENGINE","mfr_system":null,"summary":"KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ON CERTAIN TRUCKS, WITH CNG FUELED ENGINE, AND WITH ENGINE BRAKE, PROGRAMMING FAILED TO EFFICIENTLY COORDINATE ABS DEPLOYMENT AND NOT GET UPLOADED ON CHASSIS. MODEL 2011 T660. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10049801","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":"T660","year_from":2011,"year_to":2011,"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":[]}