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Service bulletin TSB220041-040420

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 id10211746
Published by NHTSA2022-05-16
Manufacturer's numberTSB220041-040420
Manufacturer's date2022-04-04
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of incorrectly assembled coolant level sensors that may not function correctly.

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
CUMMINS ISB6.7

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