[Spanbauer]

2022 Ev6 Wind 77.4KW W/44,000 miles. First ICCU software upgrade performed October 2023. Second ICCU upgrade performed January 27, 2025. Level 2 charging stopped working on January 30, 2025. Taken to the dealership Feb 3, 2025. Provided a couple different loaners from dealership during the 32 days that they had the car waiting for ICCU to arrive. I have always charged at home on level 2 at 40 amps, other than 2 times on level 3 while away from home. I charged for the first time last night on level 2 at 32 amps. Do the new ICCUs have the problem isolated and resolved, or do they still have the same issue that could return at a later time?

Just wanted to say thanks for sharing; mine died Jan 31st - issue was diagnosed and parts ordered the following week. Since we’re close to the same timeline, hopefully that means my ICCU isn’t far behind.

Based on this story, Kia/Hyundai seem to think the software updates are the best course of action to avoid failure and have no recommendations beyond that for avoiding the issue from occurring: https://insideevs.com/features/752768/hyundai-kia-genesis-iccu-failure/

We got in touch with Hyundai to try and find out what owners can do to mitigate the chance of the ICCU failing on their vehicles, regardless of whether the recall was already done. A Hyundai Motor America representative said: “The best course of action is to have the remedy performed.”

if the most recent update really does solve it (i’m skeptical), it’s likely it just came too late to save your ICCU and the damage was already done.

 

[Badbob479]

Welcome! Sorry to hear that you had to go through that. It sounds like the dealer received the replacement ICCU just recently. That may be some-what good news for other folks that are still waiting.

Good info about your charging habits. Curious, what brand of L2 charger do you have? Do you have access to the charging history? Just wondering if you noted any changes in the charging levels prior to the ICCU failure. Some have noted that they became somewhat erratic just before their ICCU failed.

There have been a total of 3 ICCU inspection/updates. The most recent one driven by an official NHTSA Safety Recall in the U.S. and similar recalls elsewhere in the world. My understanding is that each update addressed a specific/different issue that could cause an ICCU failure. By all accounts the number of owners that have actually been affected is small. But if it happens to you it might as well be 100%. Of course folks that have had a problem are more likely to reach out here or elsewhere so the issue can seem outsized.

Unfortunately there isn’t an ICCU reliability test. So a previously damaged “borderline” ICCU could still fail after an update. IOW, software cannot rehabilitate hardware.

The replacement ICCUs have the same PN, but have had all of the software/firmware updates applied so in theory whatever was causing the problems previously shouldn't affect them. Is that the end of the story? No one knows. Only time will tell.

I also charge ours almost exclusively at home. I was charging our '22 EV6 GT-Line at 48 amps and no problems at 17K miles when I sold it. However after reading about the ICCU issue I’ve kept our ChargePoint Homeflex 60 amp hardwired charger dialed back to 32 amps with our '23 GT. I charge it from ~30% to 80% SOC (100% once in a long while when I'm running some OBD2 diagnostics) and so far haven't seen any issues in a little over 8K miles.

At least since your ICCU is brand new and (ideally) not subject to the previous issues, so you should be good to go now.

I know we'd all feel a lot more comfortable if they simply replaced all of the ICCUs in the wild for a fresh start. What you had to go through was a real PIA, but I guess you could consider yourself a little better off than the rest of us now.

Thanks for the reply and all the good information. I use the ChargePoint charger and all the data. Nothing unusual, other than it has been cold and I was charging a little more often and to 90-100% a little more often. I did catch myself eyeing the changes to the 2025s this AM. Other than this episode, it's been my favorite vehicle that I've owned.

 

[Badbob479]

Just wanted to say thanks for sharing; mine died Jan 31st - issue was diagnosed and parts ordered the following week. Since we’re close to the same timeline, hopefully that means my ICCU isn’t far behind.

Based on this story, Kia/Hyundai seem to think the software updates are the best course of action to avoid failure and have no recommendations beyond that for avoiding the issue from occurring: https://insideevs.com/features/752768/hyundai-kia-genesis-iccu-failure/



if the most recent update really does solve it (i’m skeptical), it’s likely it just came too late to save your ICCU and the damage was already done.

Hopefully yours arrives soon. Since my dealer wasn't very forthcoming with updates, I just checked the APP daily to see if anything was happening.

 

[Babalottech]

2023 EV6 GT Line. Mine failed January 19th and I’ve been told part still on back order with no ETA. Absolutely nothing from Kia about solutions. 5 weeks and counting

I am at 6 weeks and counting with no ETA. Has anyone checked into legal options or a class action law suit?

 

[RSA]

I am at 6 weeks and counting with no ETA. Has anyone checked into legal options or a class action law suit?

Welcome, but sorry you’re here under unfortunate circumstances. You can check into the lemon laws in your state. A class action lawsuit already exists. Hope they get it fixed soon, but wouldn’t blame you for taking some legal steps. Been there, done that (with Nissan). PIA, but sometimes you gotta do what you gotta do. Keep us posted.

 

[dalillama]

In my quest to be the most polite pain in the ass to Kia Corporate, I did receive a call back from Customer Care today. I was told that they have a date for my ICCU controller of 12 MAR, this Wednesday, and that they're going to contact the dealership to get confirmation. I received an email later this afternoon that they were going to call me back on Wednesday with an update.

So we'll see how it goes.

 

[superrey19]

In my quest to be the most polite pain in the ass to Kia Corporate, I did receive a call back from Customer Care today. I was told that they have a date for my ICCU controller of 12 MAR, this Wednesday, and that they're going to contact the dealership to get confirmation. I received an email later this afternoon that they were going to call me back on Wednesday with an update.

So we'll see how it goes.

When did your ICCU fail?

 

[Contigo]

FWIW... I spoke with the parts manager at my local Kia today. He hasn't seen any ICCUs being delivered to his dealership since sometime between late Dec and early Feb (he wasn't certain on precise dates)

He said there are currently about 800 ICCUs on backorder for the USA, and the number has been growing since around Dec (see above). He suspects that Kia is waiting for a certain minimum number to be ready before shipping the whole batch from asia to the USA, but wasn't sure on that.

I asked him if he thinks whatever they send over will cover all the demand, all 800 or whatever. Based on previous backorders he's seen, he doubts any new shipment would have 800 or more.

On the whole it's not great news. Hopefully a shipment is already in en route, but who knows.

 

[Contigo]

I also called in trying to reach my case manager today. My case manager has been a complete waste of my time. When I first spoke to the person a week ago they had zero information about the part - status, numbers nationwide on backorder, timelines, how long past similar backorders have taken, etc. Nothing.

They were also supposed to call me back in "a few days". That was a week ago. If they can't provide any useful service, why bother assigning a case manager? Disappointed.

 

[superrey19]

FWIW... I spoke with the parts manager at my local Kia today. He hasn't seen and ICCUs being delivered to his dealership since sometime between late Dec and early Feb (he wasn't certain on precise dates)

He said there are currently about 800 ICCUs on backorder for the USA, and the number has been growing since around Dec (see above). He suspects that Kia is waiting for a certain minimum number to be ready before shipping the whole batch from asia to the USA, but wasn't sure on that.

I asked him if he thinks whatever they send over will cover all the demand, all 800 or whatever. Based on previous backorders he's seen, he doubts any new shipment would have 800 or more.

On the whole it's not great news. Hopefully a shipment already in en route.

It's as if Kia is trying to piss us off on purpose. The longer this goes the more future customers they will lose. As much as I love this car, this will be the first and last Kia I get. I keep putting off demanding a buyback because I think to myself, surely this will be the week my part comes in. Week 8 is coming up and the last email I got from a Kia rep today simply said there is "no ETA" they will "check up on me in 2 weeks" 😡

 

[Contigo]

It's as if Kia is trying to piss us off on purpose. The longer this goes the more future customers they will lose. As much as I love this car, this will be the first and last Kia I get. I keep putting off demanding a buyback because I think to myself, surely this will be the week my part comes in. Week 8 is coming up and the last email I got from a Kia rep today simply said there is "no ETA" they will "check up on me in 2 weeks" 😡

8 weeks, oof!

That tracks w/ the "no ICCU parts coming in since late Dec/Early Jan-ish" I got from my local parts manager.

 

[superrey19]

8 weeks, oof!

That tracks w/ the "no ICCU parts coming in since late Dec/Early Jan-ish" I got from my local parts manager.

Yeah I was hoping parts were at least trickling in to dealers this whole time. If this backlog keeps increasing, people are going to end up waiting over 3 months or more for a replacement.

 

[Spanbauer]

He said there are currently about 800 ICCUs on backorder for the USA, and the number has been growing since around Dec (see above). He suspects that Kia is waiting for a certain minimum number to be ready before shipping the whole batch from asia to the USA, but wasn't sure on that.

Kia must just love paying for 800 rental cars for 8 weeks, on top of 8 weeks of car payment reimbursements for 800 owners.

 

[dalillama]

When did your ICCU fail?

17 JAN, so I'll be at 8 weeks this Friday.

 

[superrey19]

17 JAN, so I'll be at 8 weeks this Friday.

Hopefully you get it today. Mine failed a few days after you. Keep us posted.

 

[dalillama]

Hopefully you get it today. Mine failed a few days after you. Keep us posted.

Believe me, I'm watching my phone like a hawk waiting for that call

 

[RSA]

Believe me, I'm watching my phone like a hawk waiting for that call

Should be like Amazon or Chewy. I want to see when it was ordered, shipped, out for delivery and a photo of it being dropped off at the service department. Just sayin’

Hang in there!

 

[Lotatoys]

I also called in trying to reach my case manager today. My case manager has been a complete waste of my time. When I first spoke to the person a week ago they had zero information about the part - status, numbers nationwide on backorder, timelines, how long past similar backorders have taken, etc. Nothing.

They were also supposed to call me back in "a few days". That was a week ago. If they can't provide any useful service, why bother assigning a case manager? Disappointed.

Ditto- My case manager has been a complete waste of time. Misinformation, failure to return calls/emails, etc...The case managers appear to be a delay tactic to keep customers off KIA's back. I have an ongoing BBB case as well a one with NHTSA and have started the Lemon Law process through KIA (via the same, worthless case manager). No end in sight.

 

[dickc174]

Welcome! Sorry to hear that you had to go through that. It sounds like the dealer received the replacement ICCU just recently. That may be some-what good news for other folks that are still waiting.

Good info about your charging habits. Curious, what brand of L2 charger do you have? Do you have access to the charging history? Just wondering if you noted any changes in the charging levels prior to the ICCU failure. Some have noted that they became somewhat erratic just before their ICCU failed.

There have been a total of 3 ICCU inspection/updates. The most recent one driven by an official NHTSA Safety Recall in the U.S. and similar recalls elsewhere in the world. My understanding is that each update addressed a specific/different issue that could cause an ICCU failure. By all accounts the number of owners that have actually been affected is small. But if it happens to you it might as well be 100%. Of course folks that have had a problem are more likely to reach out here or elsewhere so the issue can seem outsized.

Unfortunately there isn’t an ICCU reliability test. So a previously damaged “borderline” ICCU could still fail after an update. IOW, software cannot rehabilitate hardware.

The replacement ICCUs have the same PN, but have had all of the software/firmware updates applied so in theory whatever was causing the problems previously shouldn't affect them. Is that the end of the story? No one knows. Only time will tell.

I also charge ours almost exclusively at home. I was charging our '22 EV6 GT-Line at 48 amps and no problems at 17K miles when I sold it. However after reading about the ICCU issue I’ve kept our ChargePoint Homeflex 60 amp hardwired charger dialed back to 32 amps with our '23 GT. I charge it from ~30% to 80% SOC (100% once in a long while when I'm running some OBD2 diagnostics) and so far haven't seen any issues in a little over 8K miles.

At least since your ICCU is brand new and (ideally) not subject to the previous issues, so you should be good to go now.

I know we'd all feel a lot more comfortable if they simply replaced all of the ICCUs in the wild for a fresh start. What you had to go through was a real PIA, but I guess you could consider yourself a little better off than the rest of us now.

Going to be 2 months for my iccu...just got eta of April 10....do replacement iccu work any better than original...if not may be selling

 

[superrey19]

No updates on my end as of last Friday. Was told they would pay for my loan payments and check in on me in 2 weeks. I've heard some say that they also refund gas expenditures so I'm going to ask about that as well.