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Service bulletin PIT3078F

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 id10112519
Published by NHTSA2017-08-15
Manufacturer's numberPIT3078F
Manufacturer's date2012-10-29
NHTSA componentWHEELS:HUB; SUSPENSION:FRONT:HUB

NHTSA's summary

This Preliminary Information communication provides information to the technician about vehicles that have grease leaking from front hub bearings. Technician should not replace the bearing for grease purge. Technician should be advised to not clean the purged grease from the area immediately on or adjacent to the seals because this grease provides additional protection. Technician should only replace the bearing if the seals show visible damage, bearing endplay is greater than 0.005" or 0.13mm, bearing exhibits rough rotation, or bearing exhibits abnormal noise.

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

Suspension, Wheels, Wheel bearing

Vehicles listed
CADILLAC ESCALADE2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
CADILLAC ESCALADE ESV2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET SILVERADO2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET SILVERADO CLASSIC2007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET TAHOE2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
GMC SIERRA2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
GMC SIERRA CLASSIC2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
GMC YUKON DENALI2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
GMC YUKON XL2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
HUMMER H22004, 2005, 2006, 2007, 2008, 2009, 2010

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
30782004-10-13. Service bulletin. GREASE LEAK FROM FRONT HUB BEARING. *TT UPDATE. *TT
0806032003-11-05. Service bulletin. DIFFICULTY WHEN INSTALLING WHEEL CENTER CAPS TO 17-INCH ALUMINUM WHEELS. VME MESSAGE. *TT