Another update: Spent about 20 minutes on the phone with a 3rd appeal to GM service. They said, "with a vehicle of that age, not knowing if the previous owner may have abused the transmission like towing over its limit, and not knowing if the car was serviced properly....we cannot do anything else". My retort was there are no scratches where the tow hitch goes, and Carmax checked the vehicle out, and that if this is considered old, then how old is my '95 Tahoe that has towed a 4500lb boat for 6.5 hours non-stop in the hot summer to the South each year for 13 years in a row and its 171k mileage transmission works perfectly still (which is what I am driving again!!!), how can they utter such nonsense?!?!?!! Also, what service is performed on a transmission with 24k miles on it???? Very disappointed. I will not buy another GM product. They were great, I once agreed to the bailout, I no longer do. Should have let them disappear. Sad day for me. And we own 8 GM vehicles now and no other brands. What a shame. Sorry for the rant.