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Service bulletin T1575

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 id10089262
Published by NHTSA2017-01-20
Manufacturer's numberT1575
Manufacturer's date2014-11-11
NHTSA componentFUEL SYSTEM, DIESEL

NHTSA's summary

THIS TEMPORARY REPAIR PRACTICE (TRP) DIRECTS THE REPAIR ACTION FOR THE SYMPTOMS OF FAULT CODES 1681, 2976, 4167 OR FOR LEAKING DIESEL EXHAUST FLUID FROM THE AFTERTREATMENT DIESEL EXHAUST FLUID DOSING UNIT ELECTRICAL CONNECTORS ON CERTAIN ENGINES.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Fuel system

Vehicles listed
CUMMINS ISX

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