2022 Western Star 4900: common problems
The maker issued 36 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 36
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 0 | 0 | 16 |
| Engine and cooling | 0 | 0 | 8 |
| Powertrain | 0 | 0 | 4 |
| Electrical system | 0 | 0 | 3 |
| Equipment | 0 | 0 | 1 |
| Fuel/propulsion system | 0 | 0 | 1 |
| Fuel system | 0 | 0 | 1 |
| Seat belts | 0 | 0 | 1 |
| Suspension | 0 | 0 | 1 |
| Other | 0 | 0 | 1 |
Comparison
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Parts Bulletin for Fluorosilicone Fuel Tank Cap Seals
- CX Advocate for ConMet Oil Pan Insert Additional Issues
- CX Advocate for NOx conversion low faults
- Emission Recall for DETROIT DD13 and DD16 ACM Software Reprogramming
- CX Advocate for ConMet Oil Pan Insert Additional Failures
- CX Advocate for AutoElevate Disablement Gen5 Engines
- CX Advocate for benefits of Autoelevate and hydrocarbon faults
- CX Advocate for NOx conversion low faults
Update to CXA 6_24_NOx submission.
- CX Advocate communication for clutch bolts
- CX Advocate communication for NOx conversion low faults
- Customer letter regarding variable speed water pump
- Service Solution for Thread Spring Pin Suspension Alignment & Installation
NHTSA lists 36 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 2022 Western Star 4900?
There are no owner complaints in the NHTSA data for this year; the data comes from 36 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2022 Western Star 4900?
NHTSA lists 36 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 2022 Western Star 4900 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 2022 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.