I'm currently sitting in the dealership's waiting room. They put the car on the hoist and said it's "dry as a bone." As they couldn't find a leak, they're not going to do the TSB service. I think I'm going to have to wait for it to get worse before they'll agree to fix it. In the meantime, the best I can do is monitor the transmission fluid level.

I guess I should be happy that my car is OK but I'd feel better if they would just swap the parts.