The easiest thing would be to find or borrow a loaner OBD2 scanner (autoparts store) and read those stored codes (DTCs). If you have the four (4) DTCs, why not post them here? Did you forget to plug in the HV battery fan connector, or fail to properly install the orange HV disconnect switch?
Car started fine after waiting around 15 minutes. Thank you for the response! Posted via the PriusChat mobile app.
You probably have an old 12 volt battery and you left the doors open while working on the car and the battery almost died. Check it out because the last thing in the world you want is to be stranded from a dead 12 volt battery in a G2 Prius. That sometimes gets very very expensive.