mabell,

Welcome to the forum! It looks like the community is already working with you towards a do-it-yourself fix (which we're unable to advise on); if you should ever have any warranty or recall questions, or wanted assistance in the process of working with a dealership we're available to you! Contact us privately with more information (including your name, contact information, and the last 8 digits of your VIN).

Sarah (Assisting Louis), GM Customer Service