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Kenworth T680Model year report

2020 Kenworth T680 Problems

Complaints
8filed with NHTSA
Median mileage
47,000miles, 1 complaints with mileage
Recalls
8campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

Sources: NHTSA records for the 2020 Kenworth T680 (complaints, recalls, investigations). Report an error

NHTSA recorded 8 consumer complaints for the 2020 Kenworth T680. The part named most often is transmission and drivetrain, with 5 complaints (63% of the total), followed by brakes (2) and forward collision avoidance (1). 1 of the complaints include a mileage, and 100% of those were filed for vehicles with under 50,000 miles; the median is 47,000 miles. NHTSA lists 8 recall campaigns and 67 technical service bulletins for this model year. Transmission and drivetrain complaints overlap with 7 technical service bulletins filed under the same part. Brakes complaints overlap with 4 recall campaigns covering the reservoir/tank and 3 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Transmission and drivetrain: “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. …”

NHTSA complaint #11617225, filed 2024-09

Brakes: “On sunday, the 22nd of march, I was traveling south on us hwy 45. The sky was clearing and the road was dry. I had my cruise set to 65 MPH. As I approached an overpass, the distance sensor on the front of the truck mistook the shadow of the overpass as a stopped vehicle. Warning lights and buzzers went off and the vehicle did a hard brake. Luckily, there were no other vehicles around me. I took it to our shop and the system was cleaned. Four days later, the sensor mistook an overhead interstate sign for a stopped vehicle. Again, the warning lights and buzzers and a hard brake. …”

NHTSA complaint #11320219, filed 2020-04, 47,000 miles

Forward collision avoidance: “This truck was breaking automatically, and no one was front of the truck, it was scary, I almost crashed with loaded trailer on my back, it has done it multiple times, and my traction light and stability light is on all the time and adaptive cruise control had turned off completely abs light comes on and off frequently,”

NHTSA complaint #11491361, filed 2022-10

Other or unknown: “When driving, the truck will not go into gear. For example, if I am trying to shift gears in the automatic, it will stay in that gear. When traveling down the highway, it stays in a gear. I have to find a safe place to pull over and put it in neutral, then proceed. I have already changed the right hand stalk once before and it didnt go into reverse, that was the reason for changing it. I get codes saying that it needs to ve changed again and it was just recently put on.”

NHTSA complaint #11577946, filed 2024-03

Mileage when problems were reported

100% of the 1 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 47,000 and 47,000 miles.

0%0–100%10–25100%25–500%50–750%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (1 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 47,000 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

2020202220246
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Recalls and investigations

See all 8 recalls for the 2020 Kenworth T680 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 67 on record; the latest 10 are shown.

See all 67 bulletins →

Other model years of the Kenworth T680

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
2024530,0007———Too new
20239135,0009———Too new
2020847,0008———Not enough data
20198200,0009———Not enough data
201811238,38015———Not enough data
20179198,15411———Not enough data
20166207,73116———Not enough data
20158348,45511———Not enough data
201410346,27513———Not enough data

All Kenworth T680 model years

Frequently asked questions

How many NHTSA complaints does the 2020 Kenworth T680 have?

NHTSA recorded 8 consumer complaints for the 2020 Kenworth T680 as of Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2020 Kenworth T680 is reported most often?

Transmission and drivetrain is named most often, in 5 complaints (63% of the total), followed by brakes with 2.

Has the 2020 Kenworth T680 been recalled?

NHTSA lists 8 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

At what mileage are problems with the 2020 Kenworth T680 reported?

Among the 1 complaints that include a mileage, the median is 47,000 miles and the middle half falls between 47,000 and 47,000 miles; 100% were filed for vehicles with under 50,000 miles.

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.

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.