# Service bulletin TSB250046

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: 11014993
- Published by NHTSA: 2025\-03\-05
- Manufacturer's number: TSB250046
- Manufacturer's date: 2025\-02\-27
- NHTSA component: ENGINE

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution steps for the “CB Open” and “CB Close” buttons on the Human Machine Interface \(HMI\) of certain non\-paralleling models of generator sets with manual circuit breakers \(CB\) which may be non\-functioning, resulting in confusion and perception that there is an issue with the HMI or CB operation buttons.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014993-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014993-9999.pdf)

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

## Components

Engine

## Vehicles listed

- CUMMINS C100D2RE
- CUMMINS C70D2RE

JSON: [/v1/bulletins/11014993](/v1/bulletins/11014993)

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