Hi,
I'm not sure if you'll see this but I was reading on this thread and while I was successful in changing the year of the hybrid battery to year 1, per the OP's original steps. However, and what I've noticed is not everyone is following the steps for rebalancing, which I came to realize is an expensive step unless you or someone you know owns a scanner tool like the Autel. So luckily I had a friend that had an Autel, and I tried to go to the rebalance section, and it gave me "rmode - unknown state." Then it'll say that the reason it wasn't able to run the rebalance was either 1. hybrid battery temp range needed to be 15 to 49 Celsius (mine was at 32, so that wasn't the issue), fault detected (which the reason I think its failing from a fault is my airbag light is on and I need to take care of the recall, pending doing that to see if that helps). That being said, I'll update my post if the airbag recall fix will make a difference. Otherwise, if you have any additional advice on what I can do different, I couldn't think of any other way to engage the rebalance.
Thanks!