Service bulletin SC-23-128
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 | 11007756 |
| Published by NHTSA | 2024-09-13 |
| Manufacturer's number | SC-23-128 |
| Manufacturer's date | 2023-09-22 |
| Campaign id or software version | SC-23-128 |
| NHTSA component | ENGINE; FUEL/PROPULSION SYSTEM |
NHTSA's summary
The procedure describes the process of rerouting the rooftop coolant lines so the expansion tank is downstream of the HVAC chiller and lowers the pressure drop between expansion tank and pump inlet.
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, Fuel system
| PROTERRA ZX5 | 2022 to 2023 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.