I think my hybrid battery is dead?

The prius doesnt have a hydrogen battery...

Anyways, it sounds very much like your 12v battery is dying (well really is dead). Replace that. Since you live in Texas, I am guessing you have had some hot summers which kills a battery pretty fast.

If your hybrid battery was dead, the car would work perfectly, but your ICE would run a lot more often. It would also charge and discharge extremely quickly and behave erratic that way.

 

Actually, if the hybrid battery was dead, the car wouldn't be able to start at all... Might be an engine problem if its losing power... did you check the oil levels?

 

The battery shouldnt die though. It would work, then work really poorly, then die and not start. But death takes a very very long time.

 

I think your Prius CAN'T be a 2007 because your avatar says you have the advance tech package, so you'd necessarily have a 2010. Thus, if you had only 1 day off a week ... 80,000 miles would be appx 1,000 miles each & every day ... 500 miles one way ... then 500 miles back ... every day. Averaging 60mph ... that means you spend 16 of every 24 hours in the car. No WONDER your hydrogen battery is low.


Welcome to the wacky world of PC.

 

Your inverter might have overheated. Check if the inverter coolant pump is still functioning.

 

You sure do. If you owned the car for 3 years & drove it constantly you'd have to drive 3044+ miles every hour of every day.:welcome:

 

This makes no sense whatsoever. What diode, and what could covering it do to cause you to think your HV battery died?

ICE = Internal Combustion Engine; iow the Gas Engine.

Tom

 

Yes . . . and iow is also known as other words ... and, 'also-known-as' is often abbreviated .... ok someone tell me to grow up ... quick!

I'm with qbee on this ... not certain what diode is near the pedal ... or any where near the floor. Are you saying that TOYOTA told you that the traction battery pack is only warranted for 12 months?

Interesting. In CA (and a few other states), the traction pack is held to be part of the emissions system, which gets warranted out to 150,000 or 10yrs - which ever comes 1st. But Texas? I can't find any law, but some car forums refer to parts of Texas emissions warranty to fall under an 8yr/80,000 miles emission warranty ... while some parts or are covered under their 5yr/50,000 miles emission warranty.

Since it looks like Texas goes chintzy on emissions warranty, it MAY just be that Toyota changed out your traction pack based on good will ... if in fact they DID change it. Not quite certain ... are you saying they replaced your traction pack? ... or the teeny 12v auxiliary battery. Anyway, even if they only replaced the aux battery ... yes, it's out of warranty, and again, it'd be a good will gesture by Toyota.

BTW (by the way) - if your traction pack dies ... no, you can't necessarily count on your Prius to somehow still be able to limp along ... it may just light up your dash with the infamous Red Triangle of Death, leaving you stranded ... just as if your ICE was mortally wounded.

Glad to hear your Prius is back up and running in any event ... and sorry your experience was such a tough issue for a 1st post. welcome!

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+1 on the diode being a fake madeup reason told to you by a tech... Unless your floormat was conductive and shorting some randomly placed component that is visibly exposed on the floor, I'm not buying it.

 

I'm a Honda guy, but this is Texas and cross brands, good A/C and a strong 12v have to help!

Hope it gets better!

 

Just what is the warranty on a replacement traction battery? AFAIK every other part is 1 year unlimited mileage. I'm thinking it would be the balance of the original warranty or 1 year whichever is longer.

IMO Toyota's longer warranties are there only by law.

 

8 years and 100k miles in non-carb states; 10 years and 150k miles in carb states. The warranty is non-prorated. If your traction battery fails within the warranty period, you get a brand new battery for free.

Tom