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Service bulletin C2566

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 id10224257
Published by NHTSA2022-10-17
Manufacturer's numberC2566
Manufacturer's date2022-08-16
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This Campaign is being issued to update the TMS Inverter Calibration on certain BES CM0904 EV104B units currently in the field. This Campaign authorizes certified technicians to update theTMS Inverter to the latest calibration. This is an update to a previously submitted communication.

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

Vehicles listed
CUMMINS EV1048

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