2014 Kenworth T680 Transmission and drivetrain Problems
- Complaints
- 2about this part
- Share
- 20%of 10 total for the year
- Median mileage
- 65,547miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the transmission and drivetrain of the 2014 Kenworth T680, 20% of the 10 complaints for this model year. Where a mileage was given, the median is 65,547 miles. 1 recall campaign on record is filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“This truck is a misbuild from the factory on the brake system plumbing. I am concerned other units may also have been built wrong. The traction control locks up the front drive axle brakes when the truck spins a tire and kills the engine causing damage to the differential and loss of control of the vehicle. I have identified that the service brake air lines are hooked up incorrectly from the factory, not going through the ABS modulator valve. This allows full brake application to the front drive axle service brakes when the traction control engages. …”
NHTSA complaint #10958529, filed 2017-03, 65,547 miles“A vibration is felt during warm up and becomes very noticeable after shifting into 8th gear. If the air compressor kicks in while the engine is below 1300 rpms this also increases the vibration , again real bad shifting into 8th and air compressor running .note: I just bought this truck from Kenworth sales company , salt lake city, ut I aint even put 2,000 miles on the truck, what kinda of deceitful ethics violations are practiced from this dealership?”
NHTSA complaint #11220806, filed 2019-06Related recalls
- 15V310000May 26, 2015PACCAR Incorporated (PACCAR) is recalling certain model year 2014 and 2015 Kenworth T660, T680, and T800 trucks manufactured January 29, 2013, to April 2…Covers: Kenworth T680 2014–2015, T660 2014–2015, T800 2014–2015 +1 more
Related service bulletins
- 10185190Dec 18, 2020Fix-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.
- 10092246Nov 8, 2016Non-safety campaign: watson & chalin lift axle frame brackets with slotted lower mounting holes may exhibit cracking when fasteners are positioned at the upper portion of the…
- 10186161Jul 28, 2016Eaton ultrashift plus excessive engine over-speed lamp on.
- 10056319Aug 20, 2014Kenworth: see document search button for owner letter. Due to developing borate salt crystals from a batch of dot4 fluid, causing a blockage in clutch master cylinder and not…
- 10056318Aug 6, 2014Kenworth: 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…
Transmission and drivetrain: other model years
Other parts of the 2014 Kenworth T680
4 complaintsEngine
3 complaintsElectrical system
2 complaintsBrakes
1 complaintsElectronic stability control
1 complaintsFuel system
1 complaintsSteering
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2014 Kenworth T680
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology