# Service bulletin ICI22\-018

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: 10210549
- Published by NHTSA: 2022\-05\-03
- Manufacturer's number: ICI22\-018
- Manufacturer's date: 2022\-04\-13
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Important Campaign Information Letter for DDC D21M7 Termination Date Extended. This letter is to inform you that a revised bulletin for Detroit Diesel Field Service Campaign D21M7, GHG21 Detroit DD16 CPC Software Reprogramming has been EXTENDED for an additional five months. Please use the extended termination date for all work under D21M7 from this point forward. REVISION: D21M7 termination date extended to April 12, 2023.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10210549-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10210549-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2021 to 2022 WESTERN STAR 49X

JSON: [/v1/bulletins/10210549](/v1/bulletins/10210549)

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