No problem. I will check the build date when I see my car again (it's at the Nissan dealer right now).
As of getting a new battery, I truly hope that would be the case. But according to the posts here, it seems like Nissan is repairing the bad battery cells instead of replacing the entire...
Exact same thing happened to me yesterday. I'm in Canada.
I was on my way home, and the exact same error message popped up. I didn't want to take any chance, so I drove directly to the nearby Nissan dealership. The service manager looked at the car, and he couldn't do anything to switch it...