Here is my story from my 2012 Volt, bought used in 2020 at the 8 year/100k mile mark: Being in this exact situation with a previous hybrid I've owned (2012 Volt), this is definitely a sore spot like many on this forum said (yes, I did a search). I spent $10k+ to have the dealer replace the hybrid battery just to find that the reman packs don't have as "tightly balanced" cells as the OEM pack, even though both were from the same manufacturer (GM vs. ACDelco). So range wasn't as good as the OE pack, I had to pay the tow bill ($250+) when I got the dreaded CEL + limp mode of death (not gonna chance it driving 100+ miles to my dealer at 5mph especially in the snow), and when all was said and done, I paid 2x for the price of the vehicle just to have more problems down the road. I think there are reputable places like Greentec who will rebuild packs for less, but I was in a bind (had to get to work), so just went with the closest option. Looking back, I'd probably be better off if I scrapped the car, but I had just bought it, it meant a lot to me to save energy, and I'd hate to see my $10k purchase go to waste right after I bought it from the used car dealer. So with that all said and done, what's the chance of a HV battery failure on my 2017 after the 10 year / 150k mile mark? I'm at 9 years and 106.5k, but don't want the 10th year and 150k to creep up fast (I do a lot of highway driving) and not be ready for an HV battery replacement... Just bought this car a few months ago and don't want to repeat history just like my 2012 Volt did right after the battery warranty expired. Thanks!
Toyota has a great track record on their traction packs; as long as they haven't been abused. ie. an extremely low mileage Prius; was it stored properly; per OEM recommendations. IMHO; that traction pack needs to charge and discharge regularly to remain healthy. There's the Dr Prius app that'll give you an idea of the packs status; but it's almost a 10 year old car with unknown abuses in it's history - that's why your getting the discount. Nobody said that being green is going to be cheap. Except; those who are salesman and don't crunch the numbers. Even rebuilt Toyota traction packs gets a bad rap. Think about it; the rebuilt pack is mixing old with older or maybe some newer batteries - that's why they don't last. A Toyota OEM rebuilt pack gets ALL brand new, same age batteries - not a mash-up. Those that has gone with something like the Greentec mash-up reports issues later on. Those that went with the OEM replacement don't seem to have issues later on. Toyota gave 2020+ Priuses a 10yr 150K traction battery warranty. They only give an extended warranty period, because they know the actual failure rate is very low - so it doesn't cost them anything. You can do your own research, but the traction packs that usually fails again are most likely the third party rebuilds. There are others in this forum that would argue that, but the proof is in the longevity of the pack's rebuilders and the warranty they'll give their customers. There are plenty of complains of fly-by-night rebuilders that disappear or won't honor their warranties and start ghosting their customers.
there isn't any testing that I know of, but around here, there haven't been any failures during or after warranty on the 2012 pip. I may have forgotten a one off, or two, and there's always the risk of failure. but overall, they've been rock solid, other than the typical loss of range the first few years. if you want to own battery electric vehicles beyond warranty, you have to be aware of the very small chance of failure. all that being said, I don't think there has ever been another Nissan leaf debacle
House fire; Chevy Bolt - don't park inside and watch it charge was the GM memo. That was those LG traction battery packs. I should've bought one at a steep discount; because they replace all traction packs with new on ALL cars - first gen Chevy Bolt.
