# Service bulletin FDM\-IB\-011

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: 11022278
- Published by NHTSA: 2025\-09\-02
- Manufacturer's number: FDM\-IB\-011
- Manufacturer's date: 2025\-09\-02
- NHTSA component: ENGINE

## NHTSA's summary

This bulletin provides information on making sure the dedicated ground from the battery negative to the engine block ground stud remains installed when a powertrain harness is replaced. Service personnel have found instances of this ground cable not being reconnected when a powertrain harness has been replaced, this dedicated ground MUST be installed as it was when the vehicle left the factory. Failure to keep the dedicated ground installed could lead to engine failure over time.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11022278-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11022278-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2019 to 2025 OSHKOSH S\-SERIES

JSON: [/v1/bulletins/11022278](/v1/bulletins/11022278)

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