repaired · 2026 Q3
Electrical system: software
Risk. Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System)…
2021 Kenworth W900bProblems, recalls & complaints
NHTSA has logged 0 owner complaints about the 2021 Kenworth W900b. It is covered by 1 safety recall, and for recall 24V-915 the manufacturer reports only 76% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through December 9, 2024. Updated daily.
Complaints by system
Where the 2021 Kenworth W900b has problems
0 complaints grouped by the system owners reported.
| System | Complaints | Crash, fire or injury |
|---|
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
1 recall
2021 Kenworth W900b recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Kenworth.
Best & worst years
2021 vs. every other W900b year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the W900b median. How we score
'82'83'84'85'86'87'88'89'90'91'92'93'96'97'21'22'23'24'25
- Avoid
- Caution
- Solid
- Best
- Not rated
Own a 2021 W900b?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.