April 1, 2016 Service bulletin

This preliminary informational bulletin provides information on poor radio hands-free voice recognition...

Chevrolet technical service bulletin SB-PI-1533B for 2007-2013 Chevrolet Silverado 1500, 2007-2013 Chevrolet Tahoe and 2007-2013 GMC Sierra 1500 and others.

Bulletin number: SB-PI-1533B
Component: Electrical system
Summary: This preliminary informational bulletin provides information on poor radio hands-free voice recognition performance or sound quality after the onstar upgrade.

Owners of these vehicles have filed 2,236 complaints in the electrical category.

Vehicles covered

Chevrolet Silverado 1500 2007-2013 2007 2008 2009 2010 2011 2012 2013
Chevrolet Tahoe 2007-2013 2007 2008 2009 2010 2011 2012 2013
GMC Sierra 1500 2007-2013 2007 2008 2009 2010 2011 2012 2013
Chevrolet Suburban 2007-2013 2007 2008 2009 2010 2011 2012 2013
GMC Acadia 2007-2015 2008 2009 2010 2011 2012 2013 2014 2015
GMC Yukon 2007-2013 2007 2008 2009 2010 2011 2012 2013
Cadillac SRX 2007-2009 2007 2008 2009
Buick Enclave 2008-2015 2008 2009 2010 2011 2012 2013 2014 2015
Cadillac CTS 2008-2015 2008 2009 2010 2011 2012 2013 2014 2015
Chevrolet Avalanche 2007-2011 2007 2008 2009 2010 2011
Cadillac Escalade 2007-2013 2007 2008 2009 2010 2011 2012 2013
Chevrolet Avalanche 1500 2007-2013 2007 2008 2009 2010 2011 2012 2013
Cadillac DTS 2006-2011 2006 2007 2008 2009 2010 2011
Buick Verano 2012 2012

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