Service bulletin 14TR21Rev A
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 | 10203293 |
| Published by NHTSA | 2021-11-08 |
| Manufacturer's number | 14TR21Rev A |
| Manufacturer's date | 2021-09-16 |
| NHTSA component | POWER TRAIN |
NHTSA's summary
Notice concerning 6th generation TCM release
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 1000 SERIES TRANSMISSION | |
|---|---|
| ALLISON 2000 SERIES TRANSMISSION | |
| ALLISON 3000 SERIES TRANSMISSION | |
| ALLISON 4000 SERIES TRANSMISSION | |
| ALLISON B SERIES | |
| ALLISON T SERIES |
Listing a model year does not mean every vehicle of it is concerned: the document says which.