I have 2008 gen II prius. I live in Houston where it has been over 100 degrees all summer long. I was on my way to get the car inspected (overdue, expired 8/2011). Many warning lights went off. I pulled over. Lights were VSC, check engine, Red Triangle warning light. And on the monitor screen, there was the hybrid system error light. The top part of the monitor screen was out, including the outside temp. a/c shut down. I had the error code read and it was P0a93 (inverter cooling system performance). I could not get it inspected with the check engine light still lit. I called toyota service that evening. Decided to take it in late friday afternoon since I wouldn't need the car over the weekend. On my way to Toyota, all the warning lights went off and the a/c was working again. I still went in to Toyota to discuss it with them. They wanted to charge $100ish to diagnose. They could not tell me if this would be covered under my extended warranty until after that. I thought I would keep an eye on it and wait. I also decided to call the dealer that repaired my car under my insurance comprehensive. Rodents had chewed up my windshield washing system, my o2 sensors and part of my a/c hoses. Maybe this was something from that incident that they failed to discover. If it was, my local Toyota would not refund the $100. So, I headed out of Toyota and decided to go get the car inspected since the engine light was no longer on. Well, I didn't get there and it was a repeat of the first time. Warning lights all came on and the a/c shut down and the outside temp was no longer aglow. So, what do you think? ANy suggestions? Thanks in advance.