WenmarOpen by Wenmar Pro

Service bulletin FSB 284-061

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 id10081454
Published by NHTSA2016-10-04
Manufacturer's numberFSB 284-061
Manufacturer's date2015-08-28
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; ENGINE

NHTSA's summary

REGENERATION TEMPERATURES. CERTAIN MACK VEHICLES BUILT BETWEEN JANUARY 1, 2013 AND AUGUST 17, 2015 MAY EXPERIENCE A PREMIUM TECH TOOL (PTT) ERROR CODE 38 FOR SCR OVERTEMP WHEN PERFORMING A PTT REGENERATION. IF ERROR CODE 38 OCCURS, CHECK THE ENGINE ECU MAIN SOFTWARE BEFORE PERFORMING ANY TROUBLESHOOTING.

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, Engine, Software

Vehicles listed
MACK CHU2014 to 2016
MACK CXU2014 to 2016
MACK GU2014 to 2016
MACK LEU2014 to 2016
MACK MRU2014 to 2016
MACK TD2014 to 2016

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