I got the 3G upgrade and loved being able to see the charge on my phone. It worked for about a month. However for almost a week I have not able to connect. The exact text message is:
"Status update failed due to weak cell reception. To change alerts visit the Nissan Owner Portal."
It always worked when car was in garage, but thought that was it. However I parked it outside and different locations, still failing.
I'll give Nissan a call tomorrow. One great thing about Nissan vs. Tesla (besides it costing 1/4th the price of a used Tesla) is better support and dealer network.