My 2012 Tundra dash usb stops working occasionally, but will work again once the truck is shut off and cooled down.
I am guessing mine gets overloaded by today’s phones, etc. and has some kind of thermal limiter which kicks it off.
We have last year’s Entune in our Land Cruiser and have not found it to be useful.
When I asked about it at the dealership my salesman told me that he and other’s there don’t use it.
Toyota can do better.