Service bulletins for the 2021 Western Star 6900
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
76 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with type: Other are shown. Show all
| CXA_10_25_Conmet Oil Pan | 2025-11-05. Other. ENGINE. CX Advocate for ConMet Oil Pan Insert Additional Issues |
|---|---|
| SS1023366-Detroit | 2024-11-06. Other. ENGINE. Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines |
| SS1023366-Detroit | 2024-10-04. Other. ENGINE. Service Solution for Detroit Successful Regen Reference for GHG17 DD Engines |
| CXA 8_24_Conmet Oil Pan | 2024-09-07. Other. ENGINE. CX Advocate for ConMet Oil Pan Insert Additional Failures |
| CXA 8_24_AutoElevate Disa | 2024-09-07. Other. ENGINE. CX Advocate for AutoElevate Disablement Gen5 Engines |
| CXA 8_24_AutoElevate and | 2024-09-07. Other. ENGINE. CX Advocate for benefits of Autoelevate and hydrocarbon faults |
| CXA 7_24_Conmet Oil Pan | 2024-08-02. Other. ENGINE. CX Advocate for ConMet Oil Pan Insert Additional Failures |
| CXA 7_24_AutoElevate Disa | 2024-08-02. Other. ENGINE. CX Advocate for AutoElevate Disablement Gen5 Engines |
| CXA 06_24_Clutch Bolts | 2024-07-09. Other. POWER TRAIN. CX Advocate communication for clutch bolts |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.