WenmarOpen by Wenmar Pro

Service bulletin FSB 381-049

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 id10078842
Published by NHTSA2016-08-23
Manufacturer's numberFSB 381-049
Manufacturer's date2013-05-20
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

ON SOME MACK ISL-G MODELS BUILT, BETWEEN JANUARY 1, 2009 AND JANUARY 21, 2013, MAY EXPERIENCE A FAULT CODE, MID140 PSID 200 FMI 9, WHEN THE ENGINE SOFTWARE IS UPDATED.

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, Software

Vehicles listed
MACK LEU2010 to 2014
MACK MRU2010 to 2014

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