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Service bulletin FSB-375-012

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 id10056543
Published by NHTSA2014-12-24
Manufacturer's numberFSB-375-012
Manufacturer's date2014-08-01
NHTSA componentELECTRICAL SYSTEM:12V/24V/48V BATTERY

NHTSA's summary

MACK: WHEN THRESHOLD OF HIGH VOLTAGE HAS BEEN MET, THE LIFEGUARD BATTERY PROTECTION SYSTEM (LVD) RELAY MAY NOT TURN LOADS BACK ON, DUE TO AN ASSEMBLY ERROR AT SUPPLIER. MODEL 2010-2014 CHU, CXU. *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

Electrical system, 12-volt battery

Vehicles listed
MACK CHU2010
MACK CHU2013 to 2014
MACK CMM2010
MACK CXU2010
MACK PINNACLE (CHU)2011 to 2012
MACK PINNACLE (CXU)2011 to 2014

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