AI Damage2026 Kenworth T680: common problems
The maker issued 50 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 50
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 0 | 0 | 21 |
| Electrical system | 0 | 0 | 11 |
| Powertrain | 0 | 0 | 6 |
| Exterior lighting | 0 | 0 | 3 |
| Forward collision avoidance | 0 | 0 | 1 |
| Steering | 0 | 0 | 1 |
| Structure | 0 | 0 | 1 |
| Other | 0 | 0 | 10 |
Comparison
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Certain T680 Next Gen short hood chassis may be missing a bolt in the forward fairing
- This bulletin, the troubleshooting procedure, and the BMS Troubleshooting Checklist have been updated to…
This bulletin, the troubleshooting procedure, and the BMS Troubleshooting Checklist have been updated to show that the Autometer tool test results can be used in place of the Midtronics tool test results for fulfilling…
- "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 weekly for VIN changes. 10 chassis added to the…
- Certain chassis with CARB 2024 compliant MX-13 engines must have the PEU wiring harnesses updated
The original wiring and fuse are insufficient for electrical system operation and protection.
- [SmartAir / KIMS] A/C systems may shut down prematurely when voltage levels drop below a certain threshold
- An exhaust manifold slip joint seal kit is now available for EPA 2017-2024 PACCAR MX-13 engines
- "KW
The chassis list has been updated to include 1 chassis. The total chassis count is now 53. A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section. PB: The chassis list has been updated…
- This optional software update is expected to be available after 08/28/2026
- "PB
The chassis list has been updated to include 11 chassis. The total chassis count is now 122. KW: The chassis list has been updated to include 3 chassis. The total chassis count is now 52."
- "KW -The chassis list has been updated to include 2 chassis
Total chassis count is now 49. PB - The chassis list has been updated to include10 chassis. The total chassis count is now 111."
- Updated Sheppard Steering Gear Classification Tool link in Inspection Procedure
- This optional software update is expected to be available in late August 2026 for chassis equipped with…
This optional software update is expected to be available in late August 2026 for chassis equipped with EPA 2024 EMY 2024-2026 PACCAR MX-11 and MX-13 engines. This bulletin will be updated when the software is ready…
NHTSA lists 50 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2026 Kenworth T680?
There are no owner complaints in the NHTSA data for this year; the data comes from 50 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2026 Kenworth T680?
NHTSA lists 50 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2026 Kenworth T680 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2026 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.