# Service bulletin TSB250225

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: 11028340
- Published by NHTSA: 2026\-02\-05
- Manufacturer's number: TSB250225
- Manufacturer's date: 2026\-01\-14
- NHTSA component: ENGINE

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution steps for the mobile generator control module calibration which may contain a defect, resulting in the Selective Catalytic Reduction \(SCR\) Inlet Temperature parameter value reading not being visible on the HMI display and a delay of approximately 49 minutes to display the correct DEF Tank level reading following a calibration download to the control module.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028340-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11028340-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- CUMMINS C1000D6RE
- CUMMINS POWER GENERATION C500D6RE

JSON: [/v1/bulletins/11028340](/v1/bulletins/11028340)

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