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Service bulletin T2554

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 id10212883
Published by NHTSA2022-06-06
Manufacturer's numberT2554
Manufacturer's date2022-02-03
NHTSA componentELECTRICAL SYSTEM; ENGINE; ENGINE AND ENGINE COOLING; EQUIPMENT

NHTSA's summary

This temporary repair practice is being issue to update the rear panel on the High Voltage Module on certain BESCM0904 EV104B units. The updated High Voltage Junction Box test ports interferes with the rear panel of the High Voltage Module and the panel will need to be trimmed.

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, Equipment and accessories

Vehicles listed
CUMMINS EV1048

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