2021 Kenworth T680
Only 0 complaints on file — too few for a fair verdict.
This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.
Only 0 complaints on file — too few for a fair verdict. The data below is complete but unranked.
COMPLAINTS PER YEAR
View as data table
| Year | Complaints |
|---|---|
| 2011 | 0 |
| 2012 | 0 |
| 2013 | 0 |
| 2014 | 10 |
| 2015 | 8 |
| 2016 | 6 |
| 2017 | 9 |
| 2018 | 11 |
| 2019 | 8 |
| 2020 | 8 |
| 2021 | 0 |
| 2022 | 2 |
| 2023 | 9 |
| 2024 | 4 |
| 2025 | 0 |
| 2026 | 0 |
KNOWN PROBLEM AREAS
No complaint components on file for this model year.
SAFETY TIMELINE
PACCAR Incorporated (PACCAR) is recalling certain 2016-2021 Kenworth T680 trucks equipped with a 2.1m Cab and WABCO 6S/6M ABS brake system with drum brakes.
Remedy: PACCAR will notify owners, and dealers will replace the standard rear-brake, ABS modulator valve with a quick release valve, free of charge. The recall began November 30, 2020. Owners may contact PACCAR customer service at 1-425-828-5888.
Campaign 20V593000 — check if this car was fixed
PACCAR Incorporated (PACCAR) is recalling certain 2021-2022 Kenworth T680, T880, W990, T800, W900 and Peterbilt 579, 567, 389, 367 vehicles equipped with a Cummins X15 engine.
Remedy: PACCAR will notify owners, and dealers will properly torque the capscrews and the engine will also be inspected for damage and, if necessary, repaired, free of charge. The recall began on March 29, 2021.
Campaign 21V080000 — check if this car was fixed
PACCAR Incorporated (PACCAR) is recalling certain 2016-2022 Peterbilt 567, 579, 2021-2022 Peterbilt 536, 2017-2021 Kenworth T880, 2016-2022 Kenworth T680, 2018-2020 Kenworth T440, 2020 Kenworth T270, and 2021 Kenworth T280 vehicles.
Remedy: Dealers will re-wire the warning alarm, free of charge. Owner notification letters were mailed December 1, 2022. Owners may contact Peterbilt customer service at 1-940-591-4220, and Kenworth customer service at 1-425-828-5888.
Campaign 21V00N000 — check if this car was fixed
PACCAR Incorporated (PACCAR) is recalling certain 2009-2021 Kenworth C500, 2012-2021 Kenworth T440, 2009-2015 Kenworth T660, 2015-2024 Kenworth T680, 2009-2024 Kenworth T800, 2009-2020 Kenworth T370, 2014-2023 Kenworth T880, 2011-2016 Kenworth T470,...
Remedy: Dealers will install the correct volume air tanks, free of charge. Owner notification letters were mailed August 12, 2024. Additional owner notification letters were mailed October 27, 2025.
Campaign 24V145000 — check if this car was fixed
PACCAR Incorporated (PACCAR) is recalling certain 2021-2025 Peterbilt and Kenworth vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Please see the recall report for a complete list of models.
Remedy: Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed February 3, 2025. Owners may contact Kenworth's customer service at 1-425-828-5888 and Peterbilt's customer service at 1-940-591-4220.
Campaign 24V915000 — check if this car was fixed
PACCAR Incorporated (PACCAR) is recalling certain 2022-2025 Peterbilt 520, 579, and 2021-2025 Kenworth T680 trucks. The high voltage (HV) contactors may open, causing a sudden loss of high voltage and a loss of drive power.
Remedy: Dealers will update the software and replace the electrical harness, free of charge. Owner notification letters were mailed May 13, 2025.
Campaign 25V181000 — check if this car was fixed
PACCAR Incorporated (PACCAR) is recalling certain 2021-2024 Peterbilt 365, 367, 389, 535, 536, 537, 548, 567, 579, and 2021-2025 Kenworth T180, T280, T380, T480, T680, T880 and W990 trucks.
Remedy: Dealers will inspect and replace the gear shifter assembly as necessary, free of charge. Owner letters were mailed December 15, 2025, then phased after that.
Campaign 24V190000 — check if this car was fixed
BUY-SMART CHECKLIST
2021 Kenworth T680 — pre-purchase inspection
- Verify recall 20V593000 (service brakes, air) has been completed.
- Verify recall 21V080000 (engine) has been completed.
- Verify recall 21V00N000 (electrical system) has been completed.
- Verify recall 24V145000 (service brakes, air) has been completed.
- Verify recall 24V915000 (electrical system, service brakes, hydraulic) has been completed.
- Verify recall 25V181000 (electrical system) has been completed.
- Verify recall 24V190000 (power train) has been completed.
FAQ
Is the 2021 Kenworth T680 reliable?
There isn't enough NHTSA complaint data on file yet to give this model year a verdict.
How many recalls does the 2021 Kenworth T680 have?
7 recalls on file for this model year.
Data updated 2026-07-11 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.