Well mine got stuck doing an update, well at least I suspect that it did and I had to take it to the dealer to do like 4 or 5 different updates to different modules. One of the updates was this TCU update however on the paperwork they like to be as vague as possible so it just says Preformed updates and reran checks and no codes show so I have no clue what version of it I have. Then they test drove it and said everything was working as normal or something. Drove it yesterday to get dinner and all seemed fine, but will be using Blue Cruise today on a longer drive so we will see. So I guess its hit or miss if it messes something up.