Service bulletin T2549
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 | 10224319 |
| Published by NHTSA | 2022-10-17 |
| Manufacturer's number | T2549 |
| Manufacturer's date | 2022-09-22 |
| NHTSA component | POWER TRAIN |
NHTSA's summary
This Temporary Repair Practice is being issued to address failures related to fault codes 124 and/or 3342 on certain L9 CM2350 Hybrid Bus engines with Allison Transmission Systems only. This TRP authorizes certified repair locations to repair failures due to the listed fault codes where troubleshooting leads to a confirmed failure of the components related to the listed fault codes.
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
Transmission and driveline
| ALLISON TRANSMISSION | |
|---|---|
| CUMMINS L9 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.