[snoho]

Interesting, thanks for finding that. Am surprised it is just a software update. In my case I had a bad left rear brake caliper too, which was replaced, but the error codes kept coming. They replaced the wiring harness because they tested it with a multimeter and found a short in one of the wires. Maybe this is a software fix to work around a sketchy wiring harness instead of just replacing the harness?

My guess is 23-BR-001H exists but is too new to have made it out to the different sites that show TSBs.

 

[boburno]

Have you found a source online for the text of the TSB? I'd love to read it.

 

[boburno]

Have you found a source online for the text of the TSB? I'd love to read it.

i never found a good source from google. but i did get a print out from the dealer when i asked. i'll try to photo it here

 

[snoho]

Amazing!!! Totally different from the prior model year TSB, and exactly what I had replaced on my car.

 

[ScottChisonian]

Compliments of Boburno! ⭐Thanks Bro!
Snoho! R U the one who posted about having 3 warranty fix attempts? If so, please elaborate. I need all the info I can get about this fucking glitch!!! I am escalating my consumer affairs case, thanks to the new ammo!!! Scanned upside down, but you can flip it in pdf viewer.

 

[snoho]

Once they replaced the wiring harness as described in the TSB my issue went away.

 

[snoho]

The TSB is now available on the NHTSA website. Direct link to the PDF.

 

[stacey.parthemoire]

Hi all I used the Auto Hold function at a red light today, when I pressed the gas pedal on the green light nothing happened, the car didn't move. I tried going to sport mode, neutral and back, hitting the Auto Hold button... nothing . I put the car in Park and then back to D and the car moved. The fellow in the pickup truck behind me wasn't amused, nor was I. There were no warnings or error indications on the displays as far as I can recall, just an ineffectual accelerator. The car is only 3 weeks old, with 1300km on it. Just thought I'd share. If it happens again I will discus it with the dealership, although I doubt it will accomplish anything. Cheers and keep in touch (ps, since this is my first post and I don't know what info will show up: 2021 Ioniq PHEV Ultimate (blinding) White)

I bought a Brand new Ioniq hybrid in 2022. Not only did the auto hold button never work but it constantly flashs a warning on my dashboard and a loud dinging noise while driving. Very distracting. Hyaundai Danbury has still not been able to fix this.. it’s been 1.5 years. TERRIBLE.

 

[stacey.parthemoire]

I am having the same issue it says Auto Hold and shows it in yellow and also it shows EPB in yellow then flashes with a tone. Very concerning since it is a new car it is in the place I bought it from still trying to diagnose what is wrong…

The same exact thing is happening to me!! Dealership still unable to fix it. Brand new car. TERRIBLE

 

[MrsPDicks]

Bought a Brand New 2022 Ioniq Hybrid Limited in April of 2022. About 4-5 months after my purchase, the Auto Hold and EPB light sporadically come on together on my dash. no indication of the breaks locking or dragging. Sometimes it is accompanied by a dinging. I have to wait until I am stopped. Turn the car off, then back on again, and both lights go away. Sometimes it happened multiple times in 1 day, then it wouldn't happen for 3 weeks to a month. I Had Hyundai attempt to reproduce the error or definitively diagnose the problem. They were unable to do so, but they told me they had been seeing this issue with this brand new vehicle, and their warranty repair suggested replacing the rear brake calipers and wiring harness. Things have been fine, after the repairs, that is until last Thursday ( March 16, 2023 ). Almost the same amount of time has passed as when the trouble lights 1st appeared. This is very concerning. This car is the most expensive purchase I have made to date. My 2015 Hyundai Accent, which I bought brand new, was reliable for 252K miles + before the engine got tired. I would expect at the bare minimum, that a new, state of the art hybrid, double the price of my Accent, would be reliable. Now I have to contend with more warranty repairs, more down time. I hope there is a light at the end of this tunnel. Hyundai has been a dependable brand for me, that is up till now.

I have a 2022 Hyundai Ionic Hybrid (HEV) and I have been having the same exact issue. It has been to the dealership a handful of times already and they cannot recreate the issue. I propped up my camera on my shirt while I was driving and just let it record and it did capture that message that dings so fast no one can tell what it is. I was able to slow my video down to capture a screenshot. It says “Auto Hold turning off. Press brake pedal”. Scary. So off to the dealer it goes again. The light turns on randomly and it doesn’t matter what speed you are going when the random message flashes.

 

[abnormal98]

I am having the same issue it says Auto Hold and shows it in yellow and also it shows EPB in yellow then flashes with a tone. Very concerning since it is a new car it is in the place I bought it from still trying to diagnose what is wrong…

I am currently having this exact issue on my 2022 Ioniq. Did you ever get it fixed?

 

[MrsPDicks]

I am currently having this exact issue on my 2022 Ioniq. Did you ever get it fixed?

Did not get it fixed sadly. Took it to dealer, they had it for 5 days and could not find any codes or anything that would prompt them to fix it. Picking it back up tomorrow. This is so annoying.

 

[user0912]

I bought a factory certified used 2020 PHEV last month and am now seeing this issue, only 2,000 miles or so later. Taking it to the dealer tomorrow. The fix as described in 23-BR-001H sounds promising. I'm praying this will be covered by the warranty.

Photos of my dashboard in case it's helpful for anyone...

Amber Auto Hold and EPB lights appear and remain until restarting engine

While in this state, if I attempt to enable cruise, these additional lights display

 

[Srini1984]

I bought a factory certified used 2020 PHEV last month and am now seeing this issue, only 2,000 miles or so later. Taking it to the dealer tomorrow. The fix as described in 23-BR-001H sounds promising. I'm praying this will be covered by the warranty.

Photos of my dashboard in case it's helpful for anyone...
View attachment 51804
Amber Auto Hold and EPB lights appear and remain until restarting engine

View attachment 51805
While in this state, if I attempt to enable cruise, these additional lights display

I bought a factory certified used 2020 PHEV last month and am now seeing this issue, only 2,000 miles or so later. Taking it to the dealer tomorrow. The fix as described in 23-BR-001H sounds promising. I'm praying this will be covered by the warranty.

Photos of my dashboard in case it's helpful for anyone...
View attachment 51804
Amber Auto Hold and EPB lights appear and remain until restarting engine

View attachment 51805
While in this state, if I attempt to enable cruise, these additional lights display

I do have the same issue. I got this car (2021 model) recently but not sure why this has not shown during test drive.
Did the dealer/ Hyundai fixed this issue for your car?

 

[JDGreene]

The same thing was happening to my Ioniq Hybrid for the past two years. I would take it into the service department while the lights were still on so they could run diagnostics and they couldn't never find anything. I was always told that "the next software update will fix it". It stopped happening for about 3 months and it recently began happening again. It's curious that it always starts happening whenever I fill my tires up with air (36psi). Of course, I am now out of the warranty period and they won't even speak to me about it. As a matter of fact, for 4 months before the warranty expired, the service technician would only call me and speak to me on the phone. He would never send an email as he did previously. I'm sure he didn't want a paper trail since the warranty was expiring. I'll NEVER purchase a Hyundai again!

 

[2020IoniqHybridKo]

Seemed like we all have same issue in which not even the dealer can find the problem. Maybe we can file a small lawsuit and have Hyundai hold responsible and compensasion. Any idea of a good lawyer!?

 

[kayjay.lewis]

I am having the same iss

I have a 2021 that I bought new. I have the same issue. They fixed it 3 times before the warranty expired. They "said" it was the rear brake callipers. They saw my uber/lyft sign in the window and "said" it was a common problem with cars used for rideshare drivers. They said that since the lights were amber, it simply meant that the epb and autohold were disabled but it was safe to drive. The warranty expired and lights are still on. Some days, they come on and chime with a message that flashes too fast to read, some days they just come on and some days they don't come on at all. I've put 87,000 miles on my 2021 ionic and I'm looking for something new. It won't be a Hyundai. If it's a common issue, why hasn't their been a recall.

I am having the same issue. Very annoying. Tried to call 4 dealerships to get it fixed, not one of them have returned my calls. Getting extremely frustrated.

 

[petergough99]

Hi, i have had same problem for last 12 months on my 2020 hybrid ioniq, finally they are going to change the caliper on Monday, hope this sorts it. The other problem i get is on acceleration from a junction, maybe once a week, it is as if transmission isnt engaged then suddeny does engage with quite a thud, hoping this will cure this as well. pete

 

[Mhughes250]

Hi, i have had same problem for last 12 months on my 2020 hybrid ioniq, finally they are going to change the caliper on Monday, hope this sorts it. The other problem i get is on acceleration from a junction, maybe once a week, it is as if transmission isnt engaged then suddeny does engage with quite a thud, hoping this will cure this as well. pete

we’re you ever able to figure out the issue with the epb light?

 

[junksculptures]

Anothe 2021 Ioniq Hybrid owner here with the same issue (autohold and EPB warning lights randomly coming on while driving, along with a persistent "AUTO HOLD turning off press brake pedal" message and alert sound. Absolutely frustrating. Took it to a dealership yesterday and tried to get them to listen to me about how this seems to be a common problem with this make/model/year, and that there's an existing TSB about. They wouldn't listen to me. They just ran it through the standard inspection (useless) and said they couldn't find any codes or recreate the problem. And of course, the problem re-occurred 20 minutes later on my way home. Today I'm starting over with another dealership. I left no wiggle room in asserting how there is a TSB direct from Hyundai about this. I even drove around this morning with my wife in the car to take video of it happening. Service Rep said he remembers he worked on a vehicle recently that needed the wiring harness for the EPB replaced, so hopefully he knows what I'm talking about. I gave him the TSB number and will print several copies before my appointment. Wish me luck, I'll let you know how it goes.