Owners have filed 122 complaints on the Hyundai Ioniq 6, covering 2023–2025. The system named most often is Electrical System (60 reports). Worst years by volume: 2023, 2024, 2025; cleanest: 2025, 2024, 2023. 4 reports describe a crash. On average the car was 1.3 years old when the problem happened.
What breaks on Hyundai Ioniq 6
Grouped by the system owners named — percentages are shares of all 122 Ioniq 6 complaints. Open any row for the full reports in owners' own words.
Electrical System 60 Read
The contact owns a 2025 Hyundai Ioniq 6. The contact stated that as his wife was pulling into the residence driveway at approximately 3 MPH, the vehicle inadvertently accelerated. The contact stated that the front end of the vehicle crashed into the side of the house. The contact stated that there was damage to the…
The ICCU had a failure and fuse also blew; vehicle needs those parts replaced. After reading about ICCU recalls, my vehicle was not in the last recall. It affected 2023-2025 models I started up my car in morning and was about to reverse out of my driveway. I heard a pop near the rear of my vehicle and then saw a…
It is the ICCU (Integrated Charging Control Unit). The car lost power while I was going up a steep hill with a car behind me. The Hyundai dealership technician stated it is the ICCU (Integrated Charging Control Unit), and according to him, "We have ordered a replacement ICCU and FUSE. No eta on special order parts."…
Power Train 17 Read
The ICCU assembly and high voltage fuse blew/broke at 6,255 miles as I was driving on Interstate 294. That immediately reduced the vehicle maximum speed to about 25mph, causing a hazard to myself and following drivers who were traveling at 55mph or more. I limped about 3 miles to the next exit, where Hyundai arranged…
ICCU Failure
-ICCU failure, identified by dealer service department as the cause of catastrophic failure. -The car suffered a catastrophic failure on a 2-lane country road in Princeton NJ on [XXX] at approximately [XXX] at night in 20 degree temperatures. Every function except blinkers (temporarily functional) ceased to work. I…
Fuel/propulsion System 6 Read
While driving "check electrical system" warning appeared and vehicle went to limp mode limited to 20mph while on a 40mph roadway. Drove an additional few miles to try and reach home and vehicles completely died, no power. Towed to dealer. DTC P1A9096 indicates ICCU failure
Battery is not charging to full capacity. The ICCU has been replaced and the battery is still not holding a full charge
Iccu shorted and blew fuse after charging. Shut off driving down the road
Vehicle Speed Control 3 Read
To date, our experience driving the 2024 Hyundai Ioniq 6 has been a total "NIGHTMARE." We've had 2 "TERRIFYING ACCIDENTS" within the first 6 months of leasing this vehicle, Both caused by "Unintended Acceleration Issues," the car "randomly" accelerates, on it's own! 1st ACCIDENT (4/25/2024) - As my wife pulls into our…
I was parking my car a Hyundai Ioniq 6, in an easy parking space when I briefly removed my foot, which was lightly depressed on the gas pedal to hit the brake pedal, the car suddenly accelerated jumped the curb hit another car and hit a tree. The airbag did not deploy I am uninjured. The other car was parked, but was…
My Ioniq6 slowed down to 20 mph for the second time tonight. No matter how hard I pressed on the accelerator the car would not speed up past 20 mph. A message on the dashboard said “Limit: 20 mph”. Eventually the car picked up speed then said “Limit: 43 mph”. (The speed limit on University Blvd at this point was 35…
Steering 3 Read
NHTSA COMPLAINT — SHORT VERSION I am reporting a persistent, unresolved, safety-related steering defect in my 2025 Hyundai Ioniq 6 (leased 10/12/2024). Beginning in September 2025 at approximately 15,412 miles, the vehicle exhibits: (1) uncontrolled steering wheel shifting left and right at highway speeds; (2) hard…
Driving on middle lane of fast freeway with kids in the car. The car began beeping lights of an electric malfunction, a 12v battery malfunction, an ICCU malfunction and then started to slow down all the way to 3 miles per hour and then it stopped in the middle of the freeway. A car behind us almost crashed into us and…
Vehicle steering wheel was off-center and the vehicle wandered whenever the road changed camber or had rough sections. The vehicle was purchased used from Carvana,. I took it in for 4-wheel alignment and the tech reported that "All adjustment hardware at rear were pretty loose", and stated that it probably left the…
Forward Collision Avoidance 3 Read
My Ioniq 6 Limited AWD experienced a phantom braking event in a covered parking lot with no cars or pedestrians anywhere near the front of my car. The car just stopped suddenly with a warning message "Emergency Braking", and it wouldn't allow me to proceed until I turned off the car and then turned it back on.…
On the afternoon of February 12, 2024 (5:12pm), I was driving northbound on I-71 at highway speed, approximately 75mph. My Hyundai Ioniq 6 alerted me of a (non-existent) impending front-end collision, and within 1 second of the alert starting, the automatic emergency braking system activated. This resulted in the…
I was crossing the Mackinac Bridge, northbound, this afternoon, at the time traveling over the bridge deck's grates in the left lane. Traffic was backed up and I was traveling in the single-digit MPH. There was more that a car's length between myself and the next car ahead, and as I accelerated a little bit to close…
Visibility/wiper 2 Read
This car was prepped by coconut creek hyundai and I am being told by your customer service departnemtn that there might have been some debris on the wipers that caused the scratches / how is that my fault hyuandi has walked away from any responsibility / in fact they asked me if I changed the wiper blades / I just got…
The windshield cracked from using the defroster to defrost the windshield. On a cold morning
Structure 2 Read
Within one month of purchase I noticed a bubble in the paint. The bubble is now cracking and affecting the gunmetal blue paint. I’m concerned this paint problem will lead to chipping and peeling in the paint
Subject: Safety Complaint – Sharp Upper Door Edge Causing Facial Injury (Hyundai IONIQ 6, 2023) Message: To whom it may concern, I would like to submit a safety complaint regarding my 2023 Hyundai IONIQ 6 (VIN: [XXX] ). On October 14, 2024, my wife suffered a facial injury caused by an extremely sharp upper edge of…
Ioniq 6 years to avoid — and the clean ones
Complaints per model year. More reports usually means more cars on the road as well as more trouble, so read the crash and fire columns alongside the count.
| Model year | Complaints | Top system | Crashes | Fires |
|---|---|---|---|---|
| 2025 | Electrical System | 2 | — | |
| 2024 | Electrical System | 2 | — | |
| 2023 | Back Over Prevention | — | — |
The same model year, different builds
Every complaint carries the first 11 characters of the VIN — plant, year, body and engine. That is a production series, and complaints are spread across them very unevenly.
| Measure | Value |
|---|---|
| Distinct production series | 86 |
| Average complaints per series | 1.4 |
| Worst single series | 3 complaints |
| Average age at failure | 1.3 years |
A model average of 1.4 hides a worst series at 3. Enter a VIN above to see the numbers for that exact build instead of the model as a whole.
Owners reported these. Find out if yours is one of them.
- Complaints matched to the exact production run, not just the model
- What the car is worth given what tends to fail on it
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How we count
Every figure here comes from complaints owners filed with NHTSA — 1,100,006 of them, covering 1,982 models built between 1981 and 2026.
A complaint is an unverified report: someone wrote down what happened to their car. It is not a confirmed defect and not a recall. What makes the volume useful is the pattern — when thousands of owners of the same build describe the same failure, that is a signal no marketing brochure will give you.
Two things we do that the source does not. First, we compute the age of the car at the moment of failure from the incident date and the model year. Second, we group complaints by the first 11 characters of the VIN — the production series — so a bad plant run does not disappear into a model-wide average.
Frequently asked questions
What are the worst years for the Ioniq 6?
By complaint volume, 2023, 2024, 2025 drew the most owner reports. Bear in mind that popular years put more cars on the road, so check the crash and fire columns too.
Which Ioniq 6 years are the cleanest?
2025, 2024, 2023 have the fewest complaints on file. For recent years that can simply mean the cars are young.
How many complaints does the Hyundai Ioniq 6 have?
122 owner complaints filed with NHTSA, covering 2023–2025. Of those, 4 describe a crash and 0 a fire.
Are these complaints verified?
No. They are unverified reports from owners. NHTSA publishes them as filed and investigates only a fraction. The value is in the pattern, not in any single report.
Can I check complaints for one specific car?
Yes — enter its VIN above. We match the first 11 characters, which identify the plant, year, body and engine, so you get complaints on that exact production series rather than the whole model.