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Service bulletin FSB 381-013

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 id10081160
Published by NHTSA2016-10-01
Manufacturer's numberFSB 381-013
Manufacturer's date2015-04-13
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

NHTSA's summary

INSTRUMENT CLUSTER, REPROGRAMMING. CERTAIN MACK CXU, AND GU TRUCKS EQUIPPED WITH A CUMMINS ENGINE, AND BUILT BETWEEN JANUARY 1, 2013 AND SEPTEMBER 28, 2014, MAY ACTIVATE AN MID 140 SID 250 FMI 9 FAULT CODE AND CAUSE AN INTERMITTENT DISPLAY OF AN MIL LIGHT. THE MID 140 CODE IS DUE TO A MESSAGE TIMEOUT BETWEEN THE INSTRUMENT CLUSTER AND THE ENGINE.

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

Electrical system, Instrument cluster, Software

Vehicles listed
MACK CXU2014 to 2015
MACK GU2014 to 2015

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