The shift-by-wire system failed while the vehicle was being parked. The vehicle would not shift out of Drive; repeated attempts to engage Park resulted in Neutral only, with a "PARK malfunction. Engage parking brake when parking vehicle." warning displayed in the instrument cluster. Because this vehicle requires Park to be engaged before it can be powered off, the vehicle also could not be turned off. I was trapped with an energized vehicle that could not be secured in Park or shut down for approximately 30 minutes. A red 12-volt battery warning lamp was illuminated in the instrument cluster during the event (photo attached showing the malfunction message, Neutral gear state, and battery warning lamp). I secured the vehicle using the electronic parking brake. Safety risk: a vehicle that cannot engage Park or power off risks rollaway and leaves the driver unable to safely exit and secure the vehicle, particularly on a grade or in traffic. This is the second occurrence of a shift-to-park failure on this vehicle. The vehicle was previously taken to an authorized dealer for the same symptom; the dealer cleared diagnostic codes without repair and the problem recurred. The vehicle is scheduled for further dealer diagnosis and is available for inspection upon request. The ICCU recall remedy (Recall 272) was previously completed on this vehicle per the manufacturer's campaign records.
2023 Hyundai Ioniq 6 electrical problems
33 complaints (59% of all complaints for this car).
- owner complaints
- 33
- of this car's complaints
- 59%
- crashes
- 0
- recalls
- 3
Which part fails
- Horn2
At what mileage
Complaints by mileage at the time of the problem.
Hyundai Ioniq 6 electrical problems in other years
Related recalls
Electrical system: propulsion system: charging: port
- What is wrong
- Hyundai Motor America (Hyundai) is recalling certain 2023-2025 IONIQ 6 electric vehicles. The charging port door panel may detach.
- Risk
- A detached charging port door panel can create a road hazard for other vehicles, increasing the risk of a crash.
- Remedy
- Dealers will apply an adhesive on the charging port door assembly, free of charge. Owner notification letters were mailed beginning October 10, 2025. Owners may contact Hyundai customer service at 1‑855‑371‑9460. Hyundai's number for this recall is 282. Vehicle Identification Numbers (VINs) involved in this recall became searchable on on September 13, 2025.
Recall number 25V606000 · Recall details
Electrical system: propulsion system: charging: module: software
- What is wrong
- Hyundai Motor America (Hyundai) is recalling certain 2022-2024 IONIQ 5, 2023-2025 IONIQ 6, Genesis GV60, Genesis GV70 "Electrified," and Genesis G80 "Electrified" vehicles. The Integrated Charging Control Unit (ICCU) may become damaged and stop charging the 12-volt battery, which can result in a loss of drive power.
- Risk
- A loss of drive power increases the risk of a crash.
- Remedy
- Dealers will inspect and replace the ICCU and its fuse, as necessary. In addition, dealers will update the ICCU software. All repairs will be performed free of charge. Owner notification letters were mailed December 20, 2024. Owners may contact Hyundai customer service at 1‑855‑371‑9460 or Genesis customer service at 1‑844‑340‑9741. Hyundai's numbers for this recall are 272 (Hyundai) and 025G (Genesis). This recall expands and replaces previous recall number 24V‑204. Vehicles previously repaired under recall 24V‑204 will need to have the new remedy completed.
Recall number 24V868000 · Recall details
Electrical system: 12v/24v/48v battery
- What is wrong
- Hyundai Motor America (Hyundai) is recalling certain 2022-2024 IONIQ 5, 2023-2024 IONIQ 6, Genesis GV60, Genesis GV70 "Electrified," and Genesis G80 "Electrified" vehicles. The Integrated Charging Control Unit (ICCU) may become damaged and stop charging the 12-Volt battery, which can result in a loss of drive power.
- Risk
- A loss of drive power increases the risk of a crash.
- Remedy
- This recall is replaced by the federal safety agency recall number 24V‑868. Vehicles already repaired under this recall will need to have the new remedy completed. Dealers will inspect and replace the ICCU and its fuse, as necessary. In addition, dealers will update the ICCU software. All repairs will be performed free of charge. Owner notification letters were mailed April 22, 2024. Owners may contact Hyundai customer service at 1‑855‑371‑9460. Hyundai's number for this recall is 257/021G.
Recall number 24V204000 · Recall details
What 2023 Hyundai Ioniq 6 owners say
Most recent owner complaints, unedited.
In November of 2025 the vehicle displayed a "Check Eletrical System" error message. Shortly thereafter the vehicle decelerated to under 10mph as we were turning into traffic. We were able to drive it home (less than 1mi away) and then called the Dealership. The car was then towed to the dealer (but needed a jump as the 12v battery had drained). The dealer diagnosed a failure of the ICCU and replaced it. The vehicle was in the shop for approximately 2 weeks. More recently, on May 3rd of 2026, the vehicle experienced a complete deceleration as it was traveling through an intersection. No error lights or warning messages were displayed. I was only able to partially clear the intersection before the vehicle came to a complete stop. At this time the vehicle would not allow itself to be put into neutral so I could not push it out of the intersection. After approximately 5min of attempting to move the vehicle, it once again began responding to accelerator requests and I was able to drive it home. It is now with the dealer and I await their response.
On March 19, 2026 my Hyundai Ioniq 6 broke. It was clearly the ICCU problem. The car went into turtle mode with a maximum speed of 22 miles an hour and told me to get to a safe area , stop the car and have it brought in. It was brought to my local Hyundai dealer and a few days later they confirmed it was the ICCU problem. This is a safety issue. Fortunately I was 1 mile from my house and did not get stranded. Hyundai has had four years to fix the problem and obviously they have not done so. The car was a 2023 with about 23,000 miles on it.
I was driving and my electrical warning light came on again for the second time in a year. I was told it was the iccu last year and they said it was fixed and wouldnt have a problem again. I had to rent a car for almost two months. The same problem again with the iccu happened about a month ago and they still have my car. In a another gas rental car.
I leased a 2023 Ioniq 6 electric car on September 2023. Since leasing the vehicle, the vehicle has been towed four times for the same problem, the parking brake malfunctions rendering the vehicle unusable. I have multiple photos and videos documenting this. This has happened either after parking the vehicle and attempting to turn it off, or after turning on the car after being parked. The first three times this happened the vehicle remained in neutral and would not change into any other gear. The car would not turn off or lock. The last time it happened again the car stayed in neutral and would not change gears, but I was still able to turn it off and lock it. Below is a summary of all the times the car was towed and how many days it was in the dealer. 1.December 12, 2025 (towed to dealership #1) to December 19, 2025: 8 days, no action taken, unable to find the cause of the problem 2.December 20, 2025 (towed to dealership #1) to December 29, 2025: 10 days, no action taken, unable to find the cause of the problem. Note the car failed again the day after it was returned to me on December 19. 3.January 2, 2026 (towed to dealership #2) to January 13, 2026: 12 days. Changed the 12V battery and replaced the VCU, vehicle control unit as an educated guess based on conversations with the Hyundai engineering team as the initial diagnostic scan failed to pinpoint the problem. 4.March 12, 2026 (towed to dealership #2). As of tMarch 15, 2026 the car is in the dealership for repairs for the same problem. Since this problem is likely related to the electric car’s electronics, it has been both challenging to diagnose, and extremely unpredictable and dangerous when it happens without any previous actionable warnings. The fact that the parking brake malfunctions and cannot engage, and that in addition the car gets stuck in neutral, is an extremely serious safety concern that could result in an accident, injury or death.
The check electric vehicle system error message showed up on my dashboard, meaning the iccu has failed
A failure of the ICCU resulted in a maximum speed of about 25 mph and eventually a total loss of power.
January 28, 2026 The vehicle has stopped in the middle Of the street with sign «loss of power, check your battery» or something like that and after few attempts to turn it off and on it went to Accessory mode. After 15-20 minutes it completely died. So unsafe with kids in the car during extreme cold temperatures. Free Hyundai road assistance- quoted me 3 hours or so, i had to pay for towing elsewhere. No doubts its iccu, since tow truck driver attempted to jump start and from dead it went to accessory mode and died again almost instantly. I read on the Facebook about iccu problem of Hyundai, if this is engineering defect it should be remedied.
Iccu 12 v battery failed
ICCU failure, vehicle disabled while driving leaving me stranded.
Questions about the 2023 Hyundai Ioniq 6 electrical
Does the 2023 Hyundai Ioniq 6 have electrical problems?
Owners have filed 33 complaints about the electrical of the 2023 Hyundai Ioniq 6, 59% of all its complaints, more than any other problem.
At what mileage do 2023 Hyundai Ioniq 6 electrical problems start?
Not enough complaints include the mileage to tell.
Was there a recall on the 2023 Hyundai Ioniq 6 electrical?
Yes, 3 recalls: 25V606000, 24V868000, 24V204000. Check your VIN to see if your car still needs the free repair.
What year does the Hyundai Ioniq 6 have the most electrical problems?
The Hyundai Ioniq 6 model years with the most electrical complaints are 2023 (33 complaints), 2025 (22 complaints) and 2024 (21 complaints).
Other 2023 Hyundai Ioniq 6 problems
Transmission 8Engine 6Fuel system 6Driver assistance 5Acceleration 3Body 1Brakes 1Lights 1Seats 1
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