Check Hybrid System, Won't start, and No codes

Let me start by saying I have read pretty much every forum with this similar issue and am totally lost. Any help would be appreciated and treasured. I do all my own work, maybe until now, and I am dreading having to go to the dealership.

I have a 2011 Prius IV with 77k miles and drove it home from work fine like every other day. When going to work the next day, it would not start and displayed the Yellow light of death and Check Hybrid System. This isn't my first rodeo so I assumes it was the 12v battery and took it to Autozone to get replaced. They tested it and told my it's at 100% and basically brand new. Being cautious, I put it back in my car and attempted to jump start it with my other car with no success.

In maintenance mode, the voltage reads 11.5v which is odd and I know is a bad sign. I thought it should say at least 12.4v but even the jump start didn't work so I dont think its the battery.

Lastly, I used my 2 OBD2 scanners and both of them said there is no codes! Wth?! I cleared the code which came right back as I expected. The car won't start at all. When I do attempt to start it, there is a clicking from the 12v battery compartment which I am pretty sure is normal.

If I do have to take it into the dealership, do you think it would be covered in the warranty?

 

I have two priuses (Prii?) and I just switched the batteries. Same result so I know it's not the battery. Is the inverter a common problem? I read about it but it did not seem a reoccurring problem.

 

I know what that is and I did take a look at it after my car stopped working. I unlocked it, modded it a little bit, then put it right back in the locked position because I didn't want to mess anything up. Can I pull it out and put it back in? Will it damage something?

Edit: I pulled it out, looked at it them put it right back in and locked it. There were no signs of sulfur or damage so I don't think that is the issue. When I tried to start it, The ready light popped up for a half second then went away. I think a sensor is preventing the car from running. Thoughts?

 

Which fuses are you talking about? I know I didn't botch the jumpstart but I want to check them anyway. Thanks

 

Itd

Are you talking about the switch in the video link below? I just made it.

 

Do you know which fuses would stop the car from starting?

 

I did lock it into place. In the video I took it out, put it back in and locked it. It would not go in any further unless I hit it with a hammer. I made that video with the car in question so it would be clear. If the loud clicking was not the lock, then I do not know what is.

 

I just tried it. I don't what it was supposed to do but I had hope for a minute. I can tell it wants to start because "Ready" shows for a half second then is replaced by the Red Triangle. I feel like a sensor it telling it not to start. Is that possible?

 

I have disconnected the 12v many times. The error goes away but the car never starts. I will check all the fuses. This is going to take a while.

 

All the fuses are good, both under the hood and under the dash. It has about half a tank of gas. In Seattle rats have never been a problem but I will look into it. Where is the inverter fuse typically?