AI Damage2021 Dynamax Force: common problems
The maker issued 3 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 3
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Fuel system | 0 | 0 | 2 |
| Equipment | 0 | 0 | 1 |
| Steering | 0 | 0 | 1 |
Comparison
What to check before buying
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Cummins states per NHTSA Recall 21E-032, âÂÂThe fuel rail assembly may develop leaks, which may result…
Cummins states per NHTSA Recall 21E-032, âÂÂThe fuel rail assembly may develop leaks, which may result in an undetected prolonged diesel fuel spray.âÂÂ
- Per DTNA recall FL888 21V369 and 21V370; The tie rod clamp may be loose due to the supplied lock nuts…
Per DTNA recall FL888 21V369 and 21V370; The tie rod clamp may be loose due to the supplied lock nuts being over-crimped. This can cause thread galling of the bolt and nut during installation. When galling occurs, it…
- Cummins states per NHTSA 21E-032, the fuel rail assembly may develop leaks, which may result in an…
Cummins states per NHTSA 21E-032, the fuel rail assembly may develop leaks, which may result in an undetected prolonged diesel fuel spray.
Other years of this model
Questions and answers
What are the most common problems with the 2021 Dynamax Force?
There are no owner complaints in the NHTSA data for this year; the data comes from 3 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 Dynamax Force?
NHTSA lists 3 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 2021 Dynamax Force 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 2021 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.