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Service bulletin K27811231

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 id10141415
Published by NHTSA2018-06-18
Manufacturer's numberK27811231
Manufacturer's date2018-05-15
NHTSA componentFUEL SYSTEM, GASOLINE; EQUIPMENT

NHTSA's summary

Mack Chassis - Fuel Injector Offset Learning Diagnostic Trouble Codes ( DTC ) / Fault

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

Equipment and accessories, Fuel system

Vehicles listed
MACK CHU2015
MACK CXU2015
MACK GU2015
MACK LEU2015
MACK MRU2015
MACK TD2015

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