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Service bulletin C2390D

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 id10198311
Published by NHTSA2021-06-28
Manufacturer's numberC2390D
Manufacturer's date2021-05-04
NHTSA componentSERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM

NHTSA's summary

This In-Shop Campaign is being issued to recalibrate the Engine Control Module (ECM) on certain X15 CM2450 engines. The campaign enables authorized repair locations to calibrate the engine control module (ECM) to the latest revision when the unit is in for normal maintenance or other needed repairs, with certain restrictions on reimbursement. 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

Brakes, Electrical system

Vehicles listed
CUMMINS ISX15
CUMMINS X15

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