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Service bulletin PI-0847

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 id10056242
Published by NHTSA2014-10-11
Manufacturer's numberPI-0847
Manufacturer's date2014-07-01
NHTSA componentFUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM

NHTSA's summary

MACK: SOFTWARE IN FUEL MANAGEMENT MODULE (FMM) HAD INCORRECT CALIBRATION AND OPEN CIRCUIT FAULT CRITERIA, CAUSING LOW FUEL WARNING TO COME ON TOO SOON AND SHOWED FULL WHEN FUEL LEVEL SENSOR SIGNAL BECAME OPEN. *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

Fuel system

Vehicles listed
MACK PINNACLE (CXU)2013 to 2014

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