P0A80 !! OMG Just bought a used 11' 177k miles. Am I f**ked? =(

yup. the seller likely replaced a bad cell, which will last at least long enough to move the car to a new owner.
best bet is a new battery, the rest of the car should last forever.

 

How much did you pay for the 2011 Prius? I need calculate your total investment cost as to better determined if you are doomed.

 

you can try calling toyota, and asking for goodwill assistance.

 

Did you buy this from a dealer or original owner?

 

If you bought it less than 48 hours ago (you say less than 24 hours ago) there is a (usually 48-72 hours depending on state) lemon law. Take it back and get your money back.

 

call corporate customer service. goodwill assistance will involve dealer installation. if they balk, you can save quite a bit installing yourself. many here have done it. caution is the watchword.

 

I was under the impression that you bought from a dealer via a private party sale. I assumed there was some liability protection as dealers are required to possess a dealer license. Apparently there is no insurance, protection or even assurance which begs the question why a private seller would use a dealer to process paperwork if there is no liability protection.

So how much are you into this 2011 Prius? We need answers to this important question.

 

If you've exhausted your options, I can help you with this.

 

silvernuke, have a look at this thread and, if you're receptive, contact 2k1Toaster and see if he can sell you a Gen 3 (turd gen) specific kit:

Prius Battery Replacement (GenII) Like you've never seen - NEW Cylindrical Cells | PriusChat

I rank factory new followed by low-ish mileage, recent salvage as the only solid options for a reasonably long term battery fix. Rebuilds are questionable with so many elderly modules in the mix these days. If going rebuilt, the trick is finding an operation that isn't fly-by-night and will be around to honor their warranty.

In addition to getting your HV battery sorted, please consider full EGR circuit disassembly and careful cleaning. Your mileage is right around ground zero for head gasket failure, and carbon blocked EGR is seemingly the culprit.

Any help/advice from JC is gold, he's a high priest of the Prius world. And Avi at Hybrid Fix tends to be the Priuschat preferred, L.A. local indy mechanic. Good luck!

 

I thought all those fly-by-night operations ceased to exist. If they exist still, better avoid them. Go with the low mileage battery or the salvage from a "you trash it we stash it" type outfit.

 

You could replace the bad battery modules and be OK. Just do a proper voltage under load test

 

My interpretation is that the battery just failed 27000 miles out of warranty. It will be interesting to learn whether or not the original pack was worked on. I believe this is the first report of out-of-warranty battery failure on a Gen3.

Perhaps the original owner noticed the signs of a weakening battery and sold the car. Perhaps the owner just didn't like living with a car that is out of warranty.