I appreciate all of the input here. I did receive a post card from my dealership a month or so back just letting me know that there is an issue. There have been no instructions regarding service or testing or anything else to this point. I did preemptively change out my oil to 0W-40 five weeks ago, and I'm sure the dealership will offer that up again a few months from now when they start reaching out to customers.
I have found this situation really disappointing, but if they want to give me a 10 year / 150k warranty I can probably live with that.
I currently have a 16 year old Chevy 5.3L truck in the driveway with over 250,000 miles on it, and it runs like a beast. I think I should be able to expect that as a minimum on every GM truck I purchase. I have a family member that has driven Chevy/GMC trucks for 45 years in the Oklahoma oil fields and he would put 350k-400k miles on those trucks before his boss took it away and bought him a new one. Those are my expectations.