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Service bulletin FSB-364-034

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 id10048579
Published by NHTSA2012-12-28
Manufacturer's numberFSB-364-034
Manufacturer's date2012-10-01
NHTSA componentENGINE

NHTSA's summary

MACK TRUCK: WHILE DRIVING, AND FOOT BRAKE DEACTIVATES CRUISE CONTROL, ENGINE BRAKE FAILS TO FUNCTION PROPERLY UNTIL MANUALLY TURNED OFF AND THEN ON. MODELS CHU, CXU, GU, TD. NO MODELS YEARS LISTED. *PE

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

Engine

Vehicles listed
MACK CHU2013
MACK GRANITE (GU)2013
MACK PINNACLE (CXU)2013
MACK TD2012

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