2025 Kenworth W990: common problems
The maker issued 65 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 65
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 0 | 0 | 33 |
| Electrical system | 0 | 0 | 14 |
| Powertrain | 0 | 0 | 8 |
| Steering | 0 | 0 | 8 |
| Exterior lighting | 0 | 0 | 2 |
| Forward collision avoidance | 0 | 0 | 1 |
| Fuel/propulsion system | 0 | 0 | 1 |
| Service brakes | 0 | 0 | 1 |
| Other | 0 | 0 | 5 |
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.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- "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…
- [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…
- "KW
A link to the PACCAR Powertrain Prognostics Webcast has been added in the Links section. PB: The chassis list has been updated to include 2 chassis. The total chassis count is now 4. A link to the PACCAR Powertrain…
- 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…
- The verbiage in the Introduction section has been updated
- The procedure has been updated to include additional steps for verifying the software level on the vehicle…
The procedure has been updated to include additional steps for verifying the software level on the vehicle electronic control unit (VECU2) and digital display (DD). Steps have also been added to the PACCAR Common Rail…
NHTSA lists 65 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 2025 Kenworth W990?
There are no owner complaints in the NHTSA data for this year; the data comes from 65 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2025 Kenworth W990?
NHTSA lists 65 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 2025 Kenworth W990 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 2025 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.