# Service bulletin D20M7

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: 10176740
- Published by NHTSA: 2020\-06\-26
- Manufacturer's number: D20M7
- Manufacturer's date: 2020\-06\-25
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE; ENGINE

## NHTSA's summary

Detroit Field Service Campaign for GHG17 Detroit DD5 Software Reprogramming for Model Year 2020 Thomas Built Bus Applications. Certain Detroit engines installed in C2 School Buses will require programming to the required software and fuel map part numbers listed.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10176740-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10176740-9999.pdf)

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

## Components

Electrical system, Engine, Software

## Vehicles listed

- 2020 THOMAS BUILT BUSES SAF\-T\-LINER C2

JSON: [/v1/bulletins/10176740](/v1/bulletins/10176740)

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