2015 Kenworth T680 Engine Problems
- Complaints
- 2about this part
- Share
- 25%of 8 total for the year
- Median mileage
- 197,810miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine of the 2015 Kenworth T680, 25% of the 8 complaints for this model year. Where a mileage was given, the median is 197,810 miles.
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.
“I have always any lights on my truck / now cheek engine light on for ccv speedo rotor / sensor nox all most $3500 doller need fix / I don't have / before I lot money put on repair/”
NHTSA complaint #11154820, filed 2018-11, 395,600 milesRelated service bulletins
- 11037541Sep 11, 2026"Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes. 2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR…
- 10096420Dec 22, 2016Non-safety campaign: replace the molded air intake pipe, which can crack and allow road debris into the engine. Debris entering through the intake may cause severe engine damage.
- 10186161Jul 28, 2016Eaton ultrashift plus excessive engine over-speed lamp on.
- 10092232Jul 28, 2016Fix-as-fail - engine over-speed lamp could come on after a downshift with the eaton ultrashift plus transmission. This does not affect the function of the vehicle.
Engine: other model years
Other parts of the 2015 Kenworth T680
2 complaintsFuel system
2 complaintsElectrical system
1 complaintsEngine cooling
1 complaintsExterior lighting
1 complaintsSeat belts
1 complaintsSteering
1 complaintsBody and structure
1 complaintsTransmission and drivetrain
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2015 Kenworth T680
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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