2008 Prius Dead Dash, No PS, No PB

Hello, I'm fairly new to this Toyota Prius as far as maintenance comes.
I do need some guidance on correctly diagnosing this issue.
Starting a few months back I would start the car in the morning and notice the dash, power brakes and steering were not on.
Shut off the car, restart and everything would be working as it should.
Now that happened probably 10 or so times before it completely stopped working altogether.
I have paid for the dash repair and installed it with no luck.
I have replaced the 12v battery twice now just because the first battery yielded a low cranking amp output.
I can start and drive the car currently but I have no power steering, no power brakes, no power window and the lower display does not show any blue dots linking the rear battery but still functions.

I have read a bit about Techstream and was wondering if this is something I need to get to further diagnose this vehicle.
Thank you in advanced for you time