CarRecallWatchThe 2020 Kenworth T680 has 8 safety recalls on file with NHTSA.
Owners have filed 8 complaints with NHTSA.
The most-reported problem area is Power Train (5 reports).
2020 Kenworth T680 recalls
Insufficient Air Tank Volume Can Weaken Brakes
Certain Kenworth trucks were built with air tanks that do not hold enough air for the brake system.
Steering Arm Bolts May Fail, Causing Loss of Steering
Fasteners that attach the steering arm to the steering knuckle on the Dana D-Series front axle may fail.
Methane alarm may fail if power is lost, risking fire
Certain heavy-duty trucks have a wiring defect in the methane detection system.
Trucks May Take Longer to Release Brakes, Raising Crash Risk
Certain 2016-2021 Kenworth T680 trucks with a 2.1m cab and WABCO 6S/6M antilock brake system with drum brakes were built with a standard rear-brake ABS modulator valve instead of a quick release valve.
ABS warning light may stay off during power loss, raising crash risk
The anti-lock brake system (ABS) controller can lose battery or ignition power.
Mirror Glass May Detach, Reducing Visibility and Creating Road Hazard
Certain heavy-duty trucks may have upper mirror glass that can separate from the mirror carrier plate because of inadequate adhesion.
Truck May Move Unexpectedly in Cold Weather, Raising Crash Risk
Certain 2018-2020 Kenworth T680 and T880 tandem axle trucks have a parking brake on a single axle and certain automated manual transmissions.
Rear Axles May Lack Oil, Risking Wheel Separation
Certain 2020 Kenworth heavy trucks may have rear axles that do not contain lubricating oil.
Most common 2020 Kenworth T680 problems
Problem areas named in the 8 complaints owners filed with NHTSA.
| Problem area | Reports |
|---|---|
| Power Train | 5 |
| Service Brakes | 2 |
| Forward Collision Avoidance | 2 |
| Vehicle Speed Control | 1 |
| Unknown Or Other | 1 |
What owners report
Right-hand shift stalk between the shifter and the transmission is causing the vehicle to become disabled while stopped and unable to go from forward to reverse. Also getting SPN 639 pop-up when communication has been lost between the engine control module (ECM) and SAE J1939 data link. The check engine light illuminates, and the ECM immediately logs the fault code. Have to depress brake pedal while stopped & cycle gear selector to get fault to clear to start engine . Message also displayed Transmission Fault Repair Required Find Service Center . Also had new spring clutch replaced in May of 2024. Truck has 525k miles on it .
The clutch Spring on these trucks have been failing heavily. We have a couple more of these trucks and they all have the same issue. the housing for the clutch springs are cracked or damaged at less than 500,000 miles on a heavy duty truck. These clutches are supposed to last over 1MM miles. Its not a coincidence that every truck we have is failing at the same mileage. These clutches are made defective from the manufacturer. Its also a coincidence that the replacement clutches are not the original design and are of a newer design and brand. THIS is RED FLAGS!!!!
My circumstances are EXACTLY as described in a release 12/19/2019 Tech Service Bulletin A002 I experienced the vibration in my steering wheel that caused me to be suspect that there was something wrong in the drive train. Upon further investigation. I noticed that an oil seal was leaking, and when I dug a little deeper, I noticed gears that were broken and shaved down and then stopped at a Kenworth corporate location upon which they told me that I needed to purchase the entire unit to fix it. I then decided that I was going to add some differential oil and drive at a speed of 45 miles an hour, which did not cause any vibration to Chicago, which was roughly 3 hours away from my location in M
The clutch has a loose spring, Fork is damaged. Throwout bearing worn.
Throw out bearing failed prematurely. Truck only has 491,000 miles and has had a catastrophic failure resulting in a $29,000 repair bill. I have 4 other trucks like this and they are all showing signs of the same thing.
2020 Kenworth T680 questions
Does the 2020 Kenworth T680 have any recalls?
Yes. NHTSA lists 8 safety recalls for the 2020 Kenworth T680: Insufficient Air Tank Volume Can Weaken Brakes; Steering Arm Bolts May Fail, Causing Loss of Steering; Methane alarm may fail if power is lost, risking fire; Trucks May Take Longer to Release Brakes, Raising Crash Risk; ABS warning light may stay off during power loss, raising crash risk. Recall repairs are normally free at an authorized dealer.
What are the most common problems with the 2020 Kenworth T680?
Based on 8 owner complaints filed with NHTSA, the most-reported problem areas are Power Train (5), Service Brakes (2), Forward Collision Avoidance (2).
How do I check if a recall on my 2020 Kenworth T680 has been fixed?
Enter your 17-character VIN in our VIN recall check. It shows open recalls that have not been repaired on your specific vehicle. Recall repairs are normally free at an authorized dealer.