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Service bulletin TSB220173

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10224265
Published by NHTSA2022-10-17
Manufacturer's numberTSB220173
Manufacturer's date2022-08-12
NHTSA componentELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

NHTSA's summary

This Technical Service Bulletin describes some engines that have high voltage DC/DC converters (1&2) were programme opposite of the Cummins Inc. part number label. Part number labels on the High Voltage DC/DC converters in the field can indicate incorrect component, whichcan cause confusion when replacing components.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine

Vehicles listed
CUMMINS CUMMINS

Listing a model year does not mean every vehicle of it is concerned: the document says which.