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Service bulletin TSB250159

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 id11022786
Published by NHTSA2025-09-05
Manufacturer's numberTSB250159
Manufacturer's date2025-08-26
NHTSA componentENGINE

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution steps for components in the Air Handling System and EGR System which may have been exposed to lower ambient air temperatures without a Cummins® approved winter front, creating icing or condensation, resulting in fault codes below while operating at lower ambient air temperatures.

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 X15N

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