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Service bulletin C2504

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 id10212882
Published by NHTSA2022-06-06
Manufacturer's numberC2504
Manufacturer's date2022-02-03
NHTSA componentENGINE AND ENGINE COOLING; EQUIPMENT; ENGINE

NHTSA's summary

This Campaign is being issued to address a small population of BES CM0904 EV104B units that were built with INVT HV DC/AC Inverters. This Campaign authorizes certified service locations to proactively replacethe Power Steering and/or the Air Compressor Inverters if determined to be the INVT version.

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

Engine, Equipment and accessories

Vehicles listed
CUMMINS EV1048

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