Check Hybrid System, car won't drive

I was driving on the road going about 50 mph when my 2010 Prius suddenly died. The dashboard displays Check Hybrid System and won't shift into drive. This is the first issue I have had with my Prius. The display still shows that the hybrid battery has charge and there is definitely gas in the tank. The Prius has around 154,000 miles on it. I tried resetting the hybrid system by unplugging the orange thing connected to the hybrid battery but that did nothing. I was going to get a new 12V battery but none of the stores in my area had them in stock and I'm not certainly how much that would accomplish anyways. The Toyota dealership can't get me in for a diagnosis until August 18th so I wanted to see if anyone here had experienced anything similar or had suggestions about what I could do in the meantime. Thank you in advance!

 

To be honest I'm not super experienced when it comes to car work. I did replace the headlight assembly myself so I'm not above learning and trying. I've seen information about reading the codes but I'm entirely sure what I would need or even what I would be looking for.

 

Are the error codes something that I will have to have done at the dealership or would I be able to get those myself? If so what would I need?

 

It is currently in the parking lot of my apartment. I can wait until the 18th but obviously having the car before that point would be nice even just so I could drive it to the dealership and not have to have it towed.

I disconnected the positive terminal of the battery and waited about 10 minutes but nothing seemed to change. Is reading the error codes something that I would be able to do myself?

 

I was able to borrow an OBD2 error code reader and it seems that I am getting an error code P0A94 which seems to be related to the inverter. It also seems there was a recall for a software update for the hybrid system and mentions that if this issue caused the inverter to fail then Toyota would replace it free of cost. I'm hoping my issue is just related to the recall and thus would be covered. Lots of big IF's there though. Just gonna have to take it into the dealership and see.

 

I figured I'd give everyone an update. Had it towed to the Toyota dealership near me and it was the Intelligent Power Module that was covered under an enhanced warranty that was good for up to 150,000 miles. My car was just outside of that range at 155,000 but the dealership filed some sort of extension form and got it authorized so it should be completely covered. Now just have to wait for parts to come in and for the repair to get done.