# Service bulletin D22M6REV1

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: 10233948
- Published by NHTSA: 2023\-04\-07
- Manufacturer's number: D22M6REV1
- Manufacturer's date: 2023\-03\-31
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Revised Detroit Field Service Campaign for Gen 5 Customer Demo Unit \(CDU\) and Pre\-Series Unit Retrofits. D22M6 REVISION : Page 2 of the bulletin under "Replacement Parts" and "IMPORTANT" have been revised.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10233948-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10233948-9999.pdf)

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

## Components

Engine

## Vehicles listed

- DETROIT DIESEL DETROIT DIESEL

JSON: [/v1/bulletins/10233948](/v1/bulletins/10233948)

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