Service bulletin CALWS15-001
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10168127 |
| Published by NHTSA | 2019-11-21 |
| Manufacturer's number | CALWS15-001 |
| Manufacturer's date | 2019-11-21 |
| NHTSA component | POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE |
NHTSA's summary
Customer Advisory Letter for Allison flex plate mounting bolts. The incorrect flex plate mounting bolts were installed for certain vehicles.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Engine, Equipment and accessories, Transmission and driveline
| WESTERN STAR 4700 | 2020 |
|---|---|
| WESTERN STAR 4900 | 2020 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 22V338000 | 2022-05-16. EQUIPMENT:OTHER:LABELS |
|---|---|
| 20V634000 | 2020-10-14. EQUIPMENT:OTHER:LABELS; TIRES |
| 20V211000 | 2020-04-10. EQUIPMENT:OTHER:LABELS |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| CXA_10_25_Conmet Oil Pan | 2025-11-05. Other. CX Advocate for ConMet Oil Pan Insert Additional Issues |
|---|---|
| TSB26-008-WST | 2025-05-02. Service bulletin. Service Solution for DT12 Oil Plug Ports |
| CXA 3_25_NOx | 2025-04-02. Other. CX Advocate for NOx conversion low faults |
| CXA 2_25_NOx | 2025-03-04. Other. CX Advocate for NOx conversion low faults |
| TSB01-001-DDC | 2025-03-04. Service bulletin. Technical Service Bulletin for GHG17 and Newer DD Platform Heavy Duty Oil Pan Drain Plug Inserts |
| CXA 1_16_NOx | 2025-01-29. Other. CX Advocate for NOx conversion low faults |
| CXA 1_16_CARB Truck Chec | 2025-01-29. Other. CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check. |
| CXA 11_21_CARB Truck Chec | 2024-12-04. Other. CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check. |
| WI24-019 | 2024-12-04. Warranty extension. Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates |
| CXA_10_17_CARB Truck Chec | 2024-11-07. Other. CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check. |