Yes I have a 2009 Saturn Outlook and I just found out about the wave plate. I am almost 3 months out of warranty and I was told by the Saturn customer service rep that if I take to a Chevy dealership and if the wave plate is diagnosed then they could present the case to GM to see if they would still cover it.
The wave plate warranty has been extended to 120,000 miles, I don't know if there is a age limit. My 3-5-R Waveplate went at 128,000? I paid for my rebuild. I just sold it with 211,000 miles. Please post your mileage when you have these sorts or problems.