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Service bulletin TSB150127-072715

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 id10086042
Published by NHTSA2016-12-13
Manufacturer's numberTSB150127-072715
Manufacturer's date2015-07-30
NHTSA componentENGINE

NHTSA's summary

THIS TECHNICAL SERVICE BULLETIN DESCRIBES THE VERIFICATION AND RESOLUTION OF IDLE SURGE CAUSED BY LOW PRESSURE REGULATOR OSCILLATIONS. FAULT CODES 6396 OR 1861 MAY BE ASSOCIATED WITH AN OSCILLATING LOW PRESSURE REGULATOR.

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

Engine

Vehicles listed
CUMMINS WESTPORT ISX12 G

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