Service bulletin SC-21-148
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 | 11013377 |
| Published by NHTSA | 2025-02-03 |
| Manufacturer's number | SC-21-148 |
| Manufacturer's date | 2021-12-06 |
| Campaign id or software version | SC-21-148 |
| NHTSA component | POWER TRAIN |
NHTSA's summary
Transit bus powertrain software update to support the product to shift smoothly and reduce nuisance faults.
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
| PROTERRA CATALYST | 2019 to 2020 |
|---|---|
| PROTERRA ZX5 | 2019 to 2021 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.