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Service campaign C7037

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 campaign
NHTSA id11020221
Published by NHTSA2025-07-07
Manufacturer's numberC7037
Manufacturer's date2025-06-05
Campaign id or software versionC7037
NHTSA componentENGINE

NHTSA's summary

This Warranty Field Campaign is being issued to recalibrate the engine control module to improve engine and aftertreatment performance under certain operating conditions. This Campaign authorizes certified service locations to calibrate the ECM to the latest revision. 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 X15

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