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Service bulletin T2595B

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 id10237229
Published by NHTSA2023-06-05
Manufacturer's numberT2595B
Manufacturer's date2023-05-11
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This Temporary Repair Practice is being issued to address Engine Outlet NOx Sensor failures on certain ISX15 CM2350 X101 engines. This TRP authorizes certified repair locations to replace the Engine Outlet NOx Sensor if fault codes or troubleshooting lead to a confirmed failure of Engine Outlet NOx Sensor. This is an update to the 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 ISX15

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