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Service bulletin FSB 313-005

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 id10083535
Published by NHTSA2016-10-26
Manufacturer's numberFSB 313-005
Manufacturer's date2014-02-18
NHTSA componentELECTRICAL SYSTEM:12V/24V/48V BATTERY

NHTSA's summary

CHANGES HAVE BEEN MADE TO THE STACKABLE 3 BATTERY BOX USED ON CERTAIN MACK GU MODEL CHASSIS’ FROM 2010–2013. THIS WILL IMPROVE THE PROTECTION OF THE BATTERIES FROM THE ENVIRONMENT THEREFORE IMPROVING THE CONDITION OF THE BATTERY TERMINALS, CABLES, CONNECTIONS WITHIN THE BOX IN REGARDS TO CORROSION.

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, 12-volt battery

Vehicles listed
MACK GU2010
MACK GU2012 to 2013

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