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Service bulletin 364-037

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 id10057168
Published by NHTSA2015-04-23
Manufacturer's number364-037
Manufacturer's date2014-10-01
NHTSA componentELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:SWITCH

NHTSA's summary

MACK TRUCKS: MODELS 2010-2014: THERE WILL BE NO WARNING LIGHT WHEN VECU GET SHORTED TO GND. WHICH WILL CAUSE SLIDING OF THE 5TH WHEEL WHEN NO SWITCH IS ACTIVATED. *LJ

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, Ignition

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

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