Sounds like it's time to hit YouTube and see what the fix and cost is if you haven't already. Otherwise just pedal and sell the car for scrap to buy more corn and get an old cheap diesel beater that will last 400k miles
Discussion
It's looking like a $700 part + labor.
No other issues with the car.
113k on the dash.
Check to make sure the orange safety plug (if there is one) is staying seated properly on the battery…
It is. The hybrid battery is fine. Charges properly and all.
I'm thinking it's one of 3 things;
Inverter thermostat
Inverter pump
MG2 stator
It's throwing code P3125