MalcolmReynolds wrote:I managed to get the carwings/owners portal associated with my car, but they tell me that the TCU is still the 2g and that it needs to be upgraded.
So now the question is should I upgrade it given all the reported problems here with the new TCU draining batteries and other bad behavior? They told me that my car needs an airbag recall done so it is going in for that service. So I am wondering if I should have them do the TCU while there. Thoughts?
There are reports here of issues with the TCU upgrade, but what is missing are the reports from all those that had it done and have no issues. I had it done and have had only minor issues, after the initial install. The dealer did not follow all the steps to activate it, and it took Nissan EV Support seven weeks to get it activated in the system. After that, it has worked great. I have had to do a couple fuse pulls to reset it, but that is more an issue with still having the original battery in the car. The new TCU seems to be less tolerant of voltage drops and will go into a sleep mode if the battery voltage drops too low.