[titanle]

So driving home today, luckily I was slowly approaching a red light and the vehicle just completely shuts off and in red it shows "Hybrid System Failure". I sat there for about 15 minutes trying to get it to start but no luck.

After getting it towed home, I try to start it and it fires right up no problems. What could be the cause of this aside from the obvious that the hybrid system failed.

I did notice that when I tested the 2 trunk batteries, the factory one was fine but the one I replaced just under a year ago with an AGM battery was almost dead.

I left the dead battery out of the car for about 30 minutes, then put it back in and again it started right up with no problems.

Could a dead battery cause the hybrid system failure?