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Service bulletin FSB-371-046

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 id10055301
Published by NHTSA2014-05-06
Manufacturer's numberFSB-371-046
Manufacturer's date2014-03-01
NHTSA componentSTRUCTURE

NHTSA's summary

MACK: THE FRAME RAIL GROUND STUD MAY HAVE BEEN TORQUED IMPROPERLY. THIS CAN CAUSE THE CORROSION INHIBITOR TO GET BETWEEN THE RING TERMINALS. APPLIES TO MODELS CHU, CXU, GU, TD PRODUCED BETWEEN 01/01/2010 AND 10/7/2013. *JS

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

Body and frame

Vehicles listed
MACK MACK

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