Service bulletin TSB250021
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 | 11015002 |
| Published by NHTSA | 2025-03-05 |
| Manufacturer's number | TSB250021 |
| Manufacturer's date | 2025-02-04 |
| NHTSA component | FUEL/PROPULSION SYSTEM |
NHTSA's summary
This Technical Service Bulletin describes the verification and resolution steps for the system control module calibration of the battery electric system which may command coolant pump #2 to run below the minimum allowable speed of the pump in certain cold weather conditions, resulting in the maintenance lamp (Amber Wrench Light) being illuminated on cold startup or during certain cold weather conditions.
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
Fuel system
| CUMMINS BES |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.