Just an update,
Took it to a Volt service garage in the city and they said it needs a new coolant pump as the existing one works but not to what it should. They have to order the part in the meantime they said my car is 100% drive able still which is good.
Weird thing is when the codes popped up on the dash I called onstar and they booked me in the local GM garage, they had conferenced in a tech from the garage on the call as well. I said my car is a Volt and I didn't think you could service them here (I live in a small town outside the city) he said they could. I was surprised so I took the car down the next day and left it there, hour later I get a call - "We can't fix these cars here we don't do hybrid/electric cars". I just shake my head, I could have just went straight to the city.