Troubleshooting Nissan Connect Issues, Bad TCU?

I have a 2019 Nissan Leaf SV. Recently I went to the dealer when unable to get the battery status from the Nissan Connect App. I am in the USA if that matters. I don't know if I have a 2G or 3G TCU. Maybe there's an easy way to check.

When I connect to Leafspy Pro. I get the following Trouble Codes:
B2555 008 BCM Stop Lamp Circuit SEC-69
U121F 0408 MULTI AV Control Unit AV-87
U1266 0208 MULTI AV TCU Conn AV-92

From what I can gather, the B2555 is probably my dome light. My regular bulb burned out and I replaced it with an LED one.
But the U121F and the U1266 codes are hinting at an AV or TCU issue. I was wondering if anyone had this issue or any tips on how to fix.

Thanks in advance!

[MOD: merged posts]

I took my Nissan Leaf to a local dealer and they were a little baffled with what's going on. When I open the Nissan Connect app (USA) I am unable to update the app to get the status of the battery state of charge (SOC). I have the Leaf Spy Pro app and CAN Bus reader. When I go to the Service Menu and read the DTCs, I get the following:

OK None ----> ABS
B2555 008 BCM Stop Lamp Circuit SEC-69
OK None ---->BRAKE
OK None ---->charger
OK None ---->
OK None ---->
OK None ---->
OK None ---->
OK None ---->
U121F 0408 MULTI AV Control Unit AV-87
U1266 0208 MULTI AV TCU Conn AV-92