David Towle
Well-Known Member
If it was for a Kia or Hyundai I would categorize it as normal.How would you categorize a 6-7% failure rate of internal combustion engines over a 10-12 year period?
If it was for a Kia or Hyundai I would categorize it as normal.How would you categorize a 6-7% failure rate of internal combustion engines over a 10-12 year period?
I have not seen anything indicating that the HV capacity threshold for the warranty depends on where you live.Someone else here might correct me, but since you are in Florida I think you have to lose another 10.5 AH to achieve the warranteed battery replacement threshold (66% or less).
Someone else here might correct me, but since you are in Florida I think you have to lose another 10.5 AH to achieve the warrantied* battery replacement threshold (66% or less).
I got the info from Forbes, I didn't notice then that the change to 70% is for the future not now, sorry.I have not seen anything indicating that the HV capacity threshold for the warranty depends on where you live.
It is 2/3 of the original capacity (2/3 * 55 aH = 36.6 aH).
The difference in the 'California Emissions' states (California, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon
Pennsylvania, Rhode Island, Vermont, and Washington) is that the the warranty applies for 10 years / 150K miles instead of 8 years / 100K miles.
Note that other components also benefit from the extended warranty in these states. For instance, the battery charger, motor controllers, etc are extended to
15 years / 150K miles as opposed to the default 8 years / 100K miles.
This has been posted before, but here is the relevant document that lists the extended coverage duration if you are lucky enough to live in one of these 13 states:
I got the info from Forbes, I didn't notice then that the change to 70% is for the future not now, sorry.
"For the 2026 model year, California and the ZEV states require a battery to maintain no less than a 70-percent state of charge after 10 years, rising to 75 percent in 2031. As of yet, this is theoretical. There is no official test or standard for how the state of charge will be determined."
You have been afflicted with the mysterious battery capacity 'reset'...
Read the section entitled "Odd 'Resets' of Battery Capacity" at the bottom of this page:
https://github.com/clarity-phev/Battery-Capacity-Read
During the interim between November and now, did your 12V battery die? Did you have the car at the dealer for service where they may have disconnected the 12V battery for an extended period? We have not conclusively identified the cause of this, but I feel that the dealer can reset the capacity (either intentionally or unintentionally), Or, an 'extended' disconnect can likely cause it.
Your capacity will slowly return to 'normal'. It may take months depending on your charging pattern. This is one reason that I recommend reading the capacity 'regularly'. I do it once a month, but that is overkill. Every few months if probably good.
I've not been following this thread but am catching up. So, putting on my pessimist hat, this mystery capacity reset could be a way for Honda to 'run out the clock' if it may take months for the car to return to reporting actual capacity?
Owner measures 36.5 Ah at year 7.9, takes the vehicle to the dealer who does some magic and prints a test report showing 55 Ah. Before vehicle returns to reporting actual condition, warranty expires.
Yes its quoted. Yes they don't understand SOC etc. but its obvious to any of us what they meant. And others quote the same 70% for 2026.Is the quoted text from Forbes? Perhaps it was generated by an Actual Idiot (AI). They obviously don’t know the difference between State of Charge and Capacity and they appear to have no understanding of SOC.
Things like this get published, in this case from a seemingly reputable source, and readers take it as gospel. Maybe they should stick to financial matters?
Yes its quoted. Yes they don't understand SOC etc. but its obvious to any of us what they meant. And others quote the same 70% for 2026.
https://www.kbb.com/car-advice/hybrid-ev-battery-warranty/#:~:text=California will go even further,least 80% for that period.
I've not been following this thread but am catching up. So, putting on my pessimist hat, this mystery capacity reset could be a way for Honda to 'run out the clock' if it may take months for the car to return to reporting actual capacity?
Owner measures 36.5 Ah at year 7.9, takes the vehicle to the dealer who does some magic and prints a test report showing 55 Ah. Before vehicle returns to reporting actual condition, warranty expires.
FWIW - My battery capacity reset happened during work at a body shop. No Honda dealer involved. I checked with the body shop about what they did and the only thing that seemed a possibility was they disconnected the 12V battery for an extended time (> 24 hours) as part of their work.I've not been following this thread but am catching up. So, putting on my pessimist hat, this mystery capacity reset could be a way for Honda to 'run out the clock' if it may take months for the car to return to reporting actual capacity?
Owner measures 36.5 Ah at year 7.9, takes the vehicle to the dealer who does some magic and prints a test report showing 55 Ah. Before vehicle returns to reporting actual condition, warranty expires.
Actually, I think that isn't the correct question to ask. I mean the question to ask is if you feel that an ICE vehicle (overall, not just engine) will have significant costing repairs in a similar period. And of course trying to guess which option will fare better or maybe same. My 2003 Subaru Outback (my last car) needed a headgasket repair that cost me $3500 in year 12, then same thing happened again in year 16. I opted to get rid of the car in year 16, rather than head gasket repair it twice. i.e. at 16 years old, and about 200K+ miles there are other things that may also go wrong.How would you categorize a 6-7% failure rate of internal combustion engines over a 10-12 year period?...
Anyway, more than 10 years and not a terrible battery fail rate.
Actually, I think that isn't the correct question to ask. I mean the question to ask is if you feel that an ICE vehicle (overall, not just engine) will have significant costing repairs in a similar period. And of course trying to guess which option will fare better or maybe same. My 2003 Subaru Outback (my last car) needed a headgasket repair that cost me $3500 in year 12, then same thing happened again in year 16. I opted to get rid of the car in year 16, rather than head gasket repair it twice. i.e. at 16 years old, and about 200K+ miles there are other things that may also go wrong.
If it was for a Kia or Hyundai I would categorize it as normal.
I was going to say that 6-7% engine fail rate say in year 12 on gas engines sounds about normal to me. To me, 6-7% is *not* a high rate of failure in year 12. A couple of online links saying 10 years / 200K miles is normal engine lifespan:
https://tinyurl.com/3c4mxs2k
https://tinyurl.com/2u3e85yz
Very very few "normal" people know or care enough to report to NHTSA. This FB group has over 18,000 members, and I would guess (all you can do) about 80% have an engine failure. And I'm sure there are far more failures beyond this group.I did come across an article on the notorious Kia/Hyundai family of vehicles. It stated that more than 3,000,000 vehicles had been recalled and 161 complaints had been filed with the NHTSA. That would leave it about 180,000 complaints shy of hitting the 6% figure.
Even the brand that tops the POS list only has 1/1000th of the required failures to reach the level of EV battery failures.