Service bulletin TT7539EN Rev 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 | 10155499 |
| Published by NHTSA | 2019-04-01 |
| Manufacturer's number | TT7539EN Rev A |
| Manufacturer's date | 2015-06-19 |
| NHTSA component | POWER TRAIN |
NHTSA's summary
Tech Tip concerning program by Freightliner Custom Chassis Corp regarding 5th Generation Controls LoadBased Shift Scheduling (LBSS) Calibration Settings. The system will correct the calibration settings for this specific TCM
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 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.