# Service bulletin D20M4

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: 10172528
- Published by NHTSA: 2020\-03\-19
- Manufacturer's number: D20M4
- Manufacturer's date: 2020\-03\-18
- NHTSA component: EQUIPMENT; ENGINE AND ENGINE COOLING

## NHTSA's summary

DDC Field service campaign for GHG17 Detroit DD13 engines requiring software reprogramming and new emission label replacement. This field service applies only to MCI \(Motor Coach Industries\) vehicles.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10172528-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10172528-9999.pdf)

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

## Components

Engine, Equipment and accessories

## Vehicles listed

- 2000 to 2020 MCI J4500
- 2006 to 2011 MCI J4500C

JSON: [/v1/bulletins/10172528](/v1/bulletins/10172528)

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