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Service bulletins for the 2013 Kenworth T680

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.

48 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Software are shown. Show all

Bulletins, newest first
26-0372021-01-06. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. Fix-As-Fail - Prior versions of Eaton Endurant transmission software may be prone to setting Linear Clutch Actuator (LCA) fault codes leading to possible LCA hardware replacement.
03-0712020-01-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Information Only - Vehicles built with NAMUX software from 2013 to present may experience accuracy issues with the tachometer. The issue can be temporarily resolved using any one of the included procedures.
TIB-34-0492013-08-15. Service bulletin. ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM:SOFTWARE. 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
E0652013-04-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. MX RC5-RC14 SOFTWARE UPDATE CAMPAIGN. SOFTWARE UPDATES ARE SAID TO BENEFIT THE ENGINES IN RC5 AND RC14 KENWORTH ENGINES. PACCAR/KENWORTH. *KB
TIB-34-0432012-09-29. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. KENWORTH: CERTAIN TRUCKS HAVE ISSUES WITH DOOR MODULE WAKE UP, MIRROR JITTERINESS AND HEAD AND PARK LAMPS SWITCH POSITIONS TIED TOGETHER. MODEL 2012 T680. *PE

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.