2006 / 153k / P0a80

"Normal" vehicle maintenance like changing oil and filters and spark plugs has nothing to do with battery life. Battery life depends on charging cycles and heat. If you drive more hills than your brother, or are in a warmer climate, your battery life will be shorter. If you have large hairy dogs in your back seat all the time and he doesn't, maybe your battery cooling vent got clogged up. But there are also manufacturing and chemical tolerance variations, and some cars are just lemons.

With battery replacement, consider spending the most you can justify for this car. My personal experience with hybrid battery replacement is limited to the option of salvaging from a wreck, and that was a relatively small gamble that paid off. One thing to remember is that the expensive new OEM battery option will give you most likely another 10 years of reliable service. And consider that it can be easily moved to another Gen 2 Prius should yours fail soon for some other reason.

For DIY, if you're uncomfortable around exposed 200V conductors, better not do it. But well-documented safety procedures and protective gear allow many DIyers to proceed with that option.

 

The battery is a wear item. They degrade with use. Period. You need to think of them as tires, but with a much more difficult to predict failure time.

Different driving conditions, drivers, climates, manufacturing variations, etc. all play a role in longevity or lack thereof.

 

you can pick up a new toyota battery for around $2,200. that would be my recommendation if you're going to diy. if you can get it to dallas, they'll install for that price. all the best!

 

HV Battery Goodwill Warranty Listing - Toyota Prius USA | PriusChat

You can try this procedure to ask Toyota USA for assist. Seems like we are hearing less success here in 2016. PA is CARB state but not extended warranty CARB state so you probably only had 100k miles/8-yrs.

You want new Toyota batt if you can swing it...much more reliable long term solution. Dang my 2006 about same miles fingers crossed here.

 

8/100?

 

Correct.

Pennsylvania is Worthless-CARB. They adopted the CARB emission requirements/regulations, but not the longer warranty for emissions equipment and the HV Battery. Washington State is another Worthless-CARB State; there are other Worthless-CARB States too. See the attached Prius Warranty Book for 2008, to see the footnotes for Pennsylvania and other States.

Pennsylvania adopted the CARB standard, beginning with model year 2008. Clean Vehicle Program

 

The standard CARB states would be DE, PA, WA but it's still worth a shot at calling Toyota USA for assist. In this case at 153k miles the vehicle is out of batt warranty in any state.

Not worthless right? Some benefits.

 

OP can always call Toyota for Good Will Assistance. Hopefully all that meticulous maintenance has been performed at a Toyota Dealership. If so, he may just get it, even though Pennsylvania doesn't get the longer Emmision & HV Battery warranty.

 

PC should start a poll/register type thread for P0A80 DTC's. I suspect in the next year or so the frequency of this code will start climbing significantly as the HV batteries near the end of their expected service life. Then a guy wonders how many Pri's will get shown the door on account of the hit to the pocket book to keep their 11+ year old car on the road.

 

i wish there was a way for threads of that type to not be clogged with comments or sidetracked. it's hard to look for data when the thread gets weighed down by pages and pages of opinion.

 

It's hard to design a good survey, but you should try if you have a vision of how it could work. Remember PC does not have a staff that creates content...it's just us users ad hoc basis.

We are well into HV batt replacements in 2005/6/7 model years. In fact, we are in a whole new phase already. At first many of the replacements were under or near warranty period. Now we seem to be in a phase where the vehicles with dead batts are well over warranty >8-10years old.

Prius sales started really taking off around 2007-2008, so yes we should start to really see a lot of HV batts replaced as they hit ~10 years old. This may not be a large % of Prii, but just shear absolute numbers. Of course we have no way of knowing if Toyota found ways to extend batt life in later years, since we got no data.