There should be config options on both sides, car and app. If the car has been reset or cleared it should have the option to set it up. Not sure the exact screen and mine isn't really stock anymore.
I recall when I first got it there was a screen to let me take ownership on the car side and it made me wait 24 hours from the time I started that. Can't remember it it made me do a factory reset or not.
2012 Candy Blue FFE
33.5kWh battery pack
CHAdeMO DC Fast Charging