Warning:Refer toAssistant Driving Warning.
Interior windnoise is not heard when the window is lowered.Interior windnoise is caused by the air leaving the inside of thevehicle through a seal or a seam.
Tape over the relief valves to cause added air pressurewithin the vehicle.Test drive the vehicle and listen for windnoise or awhistle.Pull the vehicle over and make the temporary repairs usingmasking tape. If you cannot determine the source of the windnoise,perform one or more of the following diagnostic tests:Air Pressure TestSoap Suds or Bubble TestTracing Powder or Chalk Test
Exterior Windnoise
Checking Aftermarket Accessories#13-00-89-006: Warranty Administration – Changes in Powertrain Warranty Coverage Effective with 2010 Model Year - (May 28, 2013)
Subject:Warranty Administration – Changes in Powertrain Warranty Coverage Effective with 2010Model YearModels: 2010-2014 GM Passenger Cars and Trucks Following a competitive assessment, effective with the 2010 Model Year and beyond,General Motors made changes to the 5 year/100,000 mile (160,00 ...