November 20, 2017 Service bulletin

Electrical system

Chevrolet technical service bulletin PIT4730B for 2007-2014 Chevrolet Silverado 1500, 2006-2016 Chevrolet Impala and 2007-2014 Chevrolet Tahoe and others.

Bulletin number: PIT4730B
Component: Electrical system
Summary: This Preliminary Information communication a diagnostic tip if the high speed lan bus is shorted to ground, which can cause the BCM to appear off line.

Owners of these vehicles have filed 6,461 complaints in the electrical category.

Vehicles covered

Chevrolet Silverado 1500 2007-2014 2007 2008 2009 2010 2011 2012 2013 2014
Chevrolet Impala 2006-2016 2009 2010 2011 2012 2013 2014 2015 2016
Chevrolet Tahoe 2007-2014 2007 2008 2009 2010 2011 2012 2013 2014
Chevrolet Equinox 2007-2009 2007 2008 2009
GMC Sierra 1500 2007-2014 2007 2008 2009 2010 2011 2012 2013 2014
Chevrolet Suburban 2007-2014 2007 2008 2009 2010 2011 2012 2013 2014
GMC Acadia 2007-2017 2010 2011 2012 2013 2014 2015 2016 2017
Chevrolet Traverse 2009-2017 2010 2011 2012 2013 2014 2015 2016 2017
Chevrolet Corvette 2005-2013 2006 2007 2008 2009 2010 2011 2012 2013
GMC Yukon 2007-2014 2007 2008 2009 2010 2011 2012 2013 2014
Chevrolet Silverado 2500 2007-2014 2007 2008 2009 2010 2011 2012 2013 2014
Cadillac SRX 2007-2009 2007 2008 2009
Buick Enclave 2008-2017 2010 2011 2012 2013 2014 2015 2016 2017
Saturn Vue 2007-2010 2007 2008 2009 2010
Cadillac CTS 2008-2013 2008 2009 2010 2011 2012 2013
Chevrolet Monte Carlo 2006-2007 2006 2007
Chevrolet Avalanche 2007-2013 2007 2008 2009 2010 2011 2012 2013
GMC Sierra 2500 2007-2014 2007 2008 2009 2010 2011 2012 2013 2014
Cadillac Escalade 2007-2014 2007 2008 2009 2010 2011 2012 2013 2014
Saturn Outlook 2007-2010 2007 2008 2009 2010
Chevrolet Silverado 3500 2007-2014 2007 2008 2009 2010 2011 2012 2013 2014
Buick Lucerne 2006-2011 2006 2007 2008 2009 2010 2011
Chevrolet Express 2008-2017 2010 2011 2012 2013 2014 2015 2016 2017
Pontiac Torrent 2008-2009 2008 2009
GMC Sierra 3500 2007-2014 2007 2008 2009 2010 2011 2012 2013 2014
Cadillac DTS 2006-2012 2006 2007 2008 2009 2010 2011 2012
GMC Savana 2008-2017 2010 2011 2012 2013 2014 2015 2016 2017
Hummer H2 2008-2009 2008 2009
GMC Sierra Denali 2007-2014 2007 2008 2009 2010 2011 2012 2013 2014
Pontiac G8 2008-2009 2008 2009

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