Service bulletins for the 2014 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.
44 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Automatic transmission are shown. Show all
| TIB-26-025 | 2014-10-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. DURING ASSEMBLY, OIL SUPPLY LINE HAD NOT BEEN PROPERLY SEATED AND RESULTED IN OIL PRESSURE TO BEARINGS BEING REDUCED. MODEL 2014 T680. *PE |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.