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Service bulletin KC-492

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 id10208546
Published by NHTSA2022-03-03
Manufacturer's numberKC-492
Manufacturer's date2022-02-16
NHTSA componentENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)

NHTSA's summary

Diagnostic Trouble Code (DTC) P04DB - Crankcase Ventilation Disconnected; US10+OBD13 To US14+OBD16 Emissions

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, Exhaust and emissions, Crankcase ventilation (PCV)

Trouble codes named

P04DB

Vehicles listed
MACK ANTHEM (AN)2016
MACK CHU2010 to 2016
MACK CHU6132010
MACK CHU6142010
MACK CMH2010 to 2012
MACK CMM2010 to 2013
MACK CXU2010 to 2016
MACK CXU6122010 to 2011
MACK CXU6132010
MACK CXU613E2010
MACK CXU6142010
MACK GRANITE (GR)2016
MACK GRANITE (GU)2010 to 2016
MACK GU2010 to 2016
MACK GU7132010
MACK GU812E2010
MACK GU8132010
MACK GU813E2010
MACK GU8142010
MACK LEU2010 to 2016
MACK LR2010 to 2014
MACK LR2015, 2016
MACK LR62011 to 2016
MACK MRU2010 to 2016
MACK PINNACLE (CHU)2010 to 2016
MACK PINNACLE (CXU)2010 to 2016
MACK TD2010 to 2016
MACK TD7132010
MACK TD7142010
MACK TERRAPRO (LEU)2012 to 2016
MACK TERRAPRO (LEU/MRU)2010 to 2016
MACK TERRAPRO (MRU)2011 to 2016
MACK TITAN2013 to 2015
MACK TITAN (TD)2010 to 2016

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