Is the battery about to fail in my 05 Prius?

I bought a used 2005 Toyota Prius back in August 2012. It had 99,000 miles on it then and now has 107,000 miles. Today a few warning lights came on, one being the check engine, VSC in yellow, (!) in yellow, and a large red triangle with an exclamation point inside. I checked the manual and beside most of the symbols listed all it said was "contact dealer". I called the dealer and they assured me that it was still okay to drive for a while until I could have someone look at it (the nearest dealer in 1 hour and 15 mins away). I took the car to an auto parts dealer who said they could run a test to find out why the check engine light was one, but that their computer couldn't tell me anything about the other lights. Their system showed a code (can't remember what one) and said "Replace Hybrid Battery Pack". I was scared to drive it, but did anyway. Everything seems to be working some what normally. When I'm driving, the battery charges and stays charged. The only change I've noticed is that when the car is running but parked, the battery seems to drain quickly. Going from being totally charged in bright green, to having 2 red bars. Once I start driving again though, everything is fine again. So I'll ask again, is my battery about to fail? This afternoon, all the warning lights went off and the car seems to be back to it's usual self. HELP!

 

I live in GA but bought the car in FL. I ran a test to check the 12v and it seems to be fine. I hope the warning lights don't come back in the morning. I'm going to take it to the dealer (not the same one I bought it from) tomorrow afternoon to have it looked at. Hopefully it's nothing major. If it's the Hybrid battery (which they quoted me at $3,200) I'm totally screwed. I do not have that kind of cash right now!!

 

I'm a broke college student. $1500 is a whole lot of money when you don't have it. Much better than $3200, but still a lot. Plus I'd be buying that "as-is". I'd be worried that it would fail too.

I have another question. If the hybrid battery totally dies, will the car still run?

 

From what I originally posted, does it sound like it's failing? I went though the paperwork I have from buying the car and I found a Car-fax buy back guarantee which is good for 1 year after the purchase date. Does anyone know anything about that? I don't remember getting it from the dealer so I honestly have no idea where it came from. Should I just sell it back to them if I can? I'm afraid this car is going to end up being much more than my empty pockets can handle....

 

I did test the 12v. It was fine.

 

That's too bad. Thank you though!

 

No, I'm in South Ga. I read the thread you sent me and this part "I have been watching the MFD battery SOC bars and it has been acting differently since this problem. It is running a lot more in the highest green level than ever before and then it goes to the purple one bar mode and back up into the green area very quickly. I don't think the battery can change SOC that quick. It never was bouncing from one extreme to the next and recovering that fast." Is a lot like what my car is doing now. Which i thought was odd too sicne it's never done that before. That person susspects a wiring/corrosion issue.