I am not finding any recalls on this one unfortunately.
There is one recall transmission related, but it is a very limited number of vehicles affected, and it is not for the wave plates:
Saturn Recall Campaign 08V200000 POWER TRAIN | AutoMD
What exact warranty is covering it, what exactly is the warranty covering, and what is not being covered and why? I was able to find mention of a TSB that addresses the problem and how to fix it, but that is all it really is. It'* not an actual recall