{"nhtsa_id":10052556,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2013-08-15","date":"2013-06-18","document_id":"TIB-34-049","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SOFTWARE NEEDS TO BE UPDATED (P30-1011-108), DUE TO RECALLED REMOVAL AND DISABLING OF 13KWB, TO FIX PRE TRIP LIGHT INSPECTION FUNCTION ISSUE AND REINSTALL SWITCH. MODELS 2013 T680, T880. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10052556","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"software","name":"Software","parent":"electrical"},{"id":"wiring","name":"Wiring and fuses","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"T680","year_from":2013,"year_to":2013,"match":"exact","vehicle_ids":["2013_kenworth_t680"]},{"make":"KENWORTH","model":"T880","year_from":2013,"year_to":2013,"match":"exact","vehicle_ids":["2013_kenworth_t880"]}],"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":[]}