# Service bulletin TSB210187

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: 10229364
- Published by NHTSA: 2023\-01\-09
- Manufacturer's number: TSB210187
- Manufacturer's date: 2022\-08\-31
- NHTSA component: EQUIPMENT

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of a combination of one or all DEF header fault code\(s\) 3868, 4572 and/or 4677. Due to DEF header part shortages, an ECM calibration is being released that reduces inducement levels to allow for continued operation of the vehicle until DEF header parts become available for a final repair. This is an update to a previously submitted communication.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10229364-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10229364-9999.pdf)

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

## Components

Equipment and accessories

## Vehicles listed

- CUMMINS B6.7
- CUMMINS L9
- CUMMINS X12
- CUMMINS X15

JSON: [/v1/bulletins/10229364](/v1/bulletins/10229364)

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