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#07-00-89-037F: Warranty Administration - Courtesy Transportation and Roadside Assistance Programs - (May 6, 2013)
Subject:Warranty Administration – Courtesy Transportation and Roadside Assistance ProgramsModels: 2014 and Prior GM Passenger Cars and TrucksAttention: GM of Canada and IPC Service Agents are not authorized to utilize this service bulletin.GM of Canada Service Agents/retailers should refer to th ...