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Service bulletin FSB 221-010

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 id10082783
Published by NHTSA2016-10-18
Manufacturer's numberFSB 221-010
Manufacturer's date2015-08-06
NHTSA componentENGINE

NHTSA's summary

DIAGNOSTIC TROUBLE CODES (DTCS), LOW OIL PRESSURE. DURING LONG HARD PULL CONDITIONS, DIAGNOSTIC TROUBLE CODES (DTC) SPN 100 FMI 1 OR P052400 CAN LOG, OR ENGINE SHUT DOWN MAY OCCUR ON CERTAIN HIGH MILEAGE MACK CXU, GU, LEU AND MRU VEHICLES BUILT BETWEEN JANUARY 1, 2010 AND APRIL 2, 2015 WITH MP7 ENGINES. THESE DTC MAY OCCUR DURING THE CONDITIONS DESCRIBED IN THIS BULLETIN, WITH OR WITHOUT AN ENGINE SHUT DOWN LAMP.

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

Trouble codes named

P0524

Vehicles listed
MACK CXU2011 to 2016
MACK GU2011 to 2016
MACK LEU2011 to 2016
MACK MRU2011 to 2016

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