{"nhtsa_id":10044789,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-07-28","date":"2012-06-01","document_id":"TIB-34-042","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL","mfr_system":null,"summary":"KENWORTH: ON SOME TRUCKS, COMMUNICATION ISSUES LOGGED BY ECU, MAY CAUSE INSTRUMENT PANEL TO EXPERIENCE SWEEPING GAUGE NEEDLES, ENGINE FAULT CODES RELATED TO J1939 AND WARNING LIGHTS WOULD COME ON. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10044789","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"instrument-cluster","name":"Instrument cluster","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"T680","year_from":2013,"year_to":2013,"match":"exact","vehicle_ids":["2013_kenworth_t680"]}],"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":[]}