Toyota is online to answer customers who have problems with this 6-speed transmission at Edmunds:
http://blogs.edmunds.com/Straightline/.ee90ff2
http://townhall-talk.edmunds.com/direct/view/.f0c20c4/24
This is a customer service practice that GM should adopt immediately. This drastically increases customer satisfaction, and halts any inaccuracies in the internet rumor mill by issuing company statements.
Internet based customer service is how companies like Dell are rated so high on customer satisfaction, because the company is responsive and easy to contact.