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Service bulletin FB-284-027

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 id10037304
Published by NHTSA2011-05-18
Manufacturer's numberFB-284-027
Manufacturer's date2010-11-01
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

MACK: THERE ARE ENGINE DIAGNOSTIC TROUBLE CODES AND THERE MAY NEED TO BE A SOFTWARE UPDATE. *RM

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, Cooling system

Vehicles listed
MACK GRANITE (GU)2012
MACK LEU2012
MACK MRU2012
MACK PINNACLE (CHU)2012
MACK PINNACLE (CXU)2012
MACK TD7132010
MACK TD7142010

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