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Service bulletin K45941512

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 id10129928
Published by NHTSA2018-03-12
Manufacturer's numberK45941512
Manufacturer's date2018-01-10
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

Mack Chassis - Diagnostic Trouble Code ( DTC ) P0128, Diagnostic And Repair - US14+OBD13 (Commonly Year Model 2015) And Newer.Updated to reflect release of FSB284-064 (Above)

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Cooling system

Trouble codes named

P0128

Vehicles listed
MACK CHU
MACK CHU2006 to 2018
MACK CXU
MACK CXU2006 to 2018
MACK GU
MACK GU2006 to 2018
MACK LEU2007 to 2017
MACK LR
MACK LR2010 to 2014
MACK LR2015, 2016, 2017, 2018

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

Other bulletins for the same vehicles and component
K459415122018-07-16. Service bulletin. Mack Chassis - Diagnostic Trouble Code ( DTC ) P0128, Diagnostic And Repair - US14 +OBD15, Common Model Year 2016
K459415122018-06-18. Service bulletin. Mack Chassis - Diagnostic Trouble Code ( DTC ) P0128, Diagnostic And Repair - US14 +OBD13 US14+OBD15 And US14+OBD16, Commonly Model Year 2015 Through 2017
K459415122018-05-29. Service bulletin. Mack Chassis - Diagnostic Trouble Code ( DTC ) P0128, Diagnostic And Repair - US14 +OBD13 US14+OBD15 And US14+OBD16, Commonly Model Year 2015 Through 2017
FSB8730212018-03-12. Service bulletin. HVAC Filter Blocked, Repair, LR