Owners have filed 33 complaints with NHTSA about this car, most about the electrical, transmission, and acceleration and cruise control. The 9 checks below target those problems, in the order you would do them at the car.
2024Tick items off on your phone at the car, or print it. Ticks stay on this device.
0/9 checked
2024 Hyundai Ioniq 6: inspection sheet
Before you go, or before you touch the car0/4
Engine off, key in hand0/2
Ask the seller not to warm the car up first0/1
At least 20 minutes, with some highway0/2
These checks are specific to this model year. For tires, body panels, fluids, and the other basics every used car needs, use the general inspection guide.
These years share the 2024's design and most of its parts, so their problems are the ones to look for on this car too.
Worth adding to your 2024 checks
Worth adding to your 2024 checks
EPA figures for each version of the 2024 Hyundai Ioniq 6. Use them to confirm you are looking at the version that was advertised, and as a yardstick on the test drive.
| Version | Drive | EPA rating |
|---|---|---|
| Electric | AWD, RWD | 316–361 mi range |
Owners report these failures starting around the mileages below. A car inside one of these ranges deserves a closer look at that part, or records showing it was already fixed.
ICCU failure, power loss
20,013–26,000 miles
NHTSA complaints for the 2024 Hyundai Ioniq 6, grouped by the part owners named. Open a row to read what goes wrong.
Sudden loss of drive power is the main report, and dealers usually trace it to a failed ICCU. A loud pop and a "check electrical system" warning come first. The car then limps along at about 15 to 25 mph and shuts down, so it has to be towed. Failures cluster around 25,000 to 26,000 miles and often follow cold weather. Some hit cars that owners say already had the ICCU software update. The 12V battery can also die while the car is parked. Both horns can stop working, which dealers fix under warranty. Some owners wait months for a service appointment.
Abrupt deceleration with a "check electrical system" warning is the core complaint. The car drops to 25 mph or less, sometimes to about 10 mph in highway traffic, and some cars stop in a live lane. Dealers diagnose a failed ICCU, often with a blown fuse or a 12V battery that will not charge from the main battery. One failure shows up the morning after a Level 2 charge at 20,013 miles. Owners say the software updates did not prevent it, and some cars sit at dealers for weeks.
Both complaints allege unintended acceleration at parking speed, and both involve crashes. Drivers say the car surged after their foot left the accelerator. In one case it jumped a curb, hit a parked car and struck a tree. In the other it hit a garage, with property damage over $8,000. One report says the parking collision warning and automatic stopping did not step in. Neither report describes an injury.
Both reports describe an ICCU failure that cuts drive power. In one, the unit shorts and blows a fuse after charging, and the car later shuts off on the road. In the other, it pops at 65 mph on a snowy highway. The car drops to 20 mph in traffic and tells the driver to pull over immediately. Both describe a sudden power loss that carries real collision risk at speed.
One complaint is a freeway power loss with warnings for the electrical system, the 12V battery and the ICCU. The car slows to 3 mph and stops in a travel lane at roughly 10k miles. The other describes an off-center steering wheel and a car that wanders over camber changes and rough pavement. A shop found loose rear alignment hardware and heavy outer wear on the left rear tire, which raises blowout and loss-of-control concerns.
Excerpts from complaints Ioniq 6 owners filed with NHTSA, as written. Listen for the same symptoms on your test drive.
Both the high and low tone horns on the car failed with 7500 miles on the vehicle. This has caused the inability to warn other drivers of lane encroachment or alerts. The part is being replaced under warranty currently waiting on the part to arrive. Estimated repair date 11/22/24 As a member of multiple Hyundai Ioniq groups this seems to be a common failure across more Hyundai models then just the Ioniq.
Filed with NHTSA, November 2024
ICCU failure. 5 minutes into my drive to work, the car slowed down, dashboard said electric failure and then died. It had to be towed to the dealership where it took a week to get ICCU replaced. Apparently a lot of Ioniq owners are having this problem. No warning signs, the car just dies. Car has 26,000 miles.
Filed with NHTSA, January 2026
I was driving on the highway, 65mph when I had a sudden loss of power, check electrical system warning and a battery picture came on. I was reduced to approx 10mph suddenly in rush hour traffic, in the left lane, with no shoulder to pull over to. I was able, with the kindness of other drivers slowing down, able to move to the right lane, then to the shoulder. Called AAA for tow to dealership. 12v battery and ICCU damage.
Filed with NHTSA, March 2026
ICCU failure DTC P1A9096 12 volt battery depleted charge and would not charge off of traction battery shutting down all systems. Vehicle stopped on the middle of highway creating a safety issue. Vehicle was in previously and had all recalls performed related this possible issue. Vehicle has been at dealers without a resolution for weeks.
Filed with NHTSA, May 2025
Driving 65 on the highway, the ICCU popped and died and the car immediately went into slow mode and decreased to 20mph in traffic in the snow. It displayed a message to pull over immediately and check the power system.
Filed with NHTSA, February 2026
Complaints for this year next to the average for the other model years, area by area.
The 2024 ranks second for owner complaints among 3 Ioniq 6 years, close to the average of the others. Newer years have had less time to collect complaints, so compare like with like.
Redesigns and mid-cycle updates change what can go wrong.
The 2024 is the second model year of the Ioniq 6's first generation (2023 on).
Hyundai updated the Ioniq 6 for 2025, so a 2024 does not have those changes.
What changed for 2025 (not on a 2024)
Recall repairs are free at any Hyundai dealer, but the seller may never have had them done. Check each campaign number against the VIN.
Hyundai Motor America (Hyundai) is recalling certain 2023-2025 Hyundai Ioniq 6, 2023-2026 Genesis G90, 2024-2026 Hyundai Santa Fe, and Hyundai Santa Fe Hybrid vehicles. The driver and passenger seat belt anchors may detach.
Risk: A detached seat belt anchor will not adequately restrain the seat occupant, increasing the risk of injury in a crash.
Fix: Dealers will inspect and reinforce or replace the seat belt anchors, as necessary, free of charge. Owner notification letters are expected to be mailed June 5, 2026. Owners may contact Hyundai customer service at 1-855-371-9460 and Genesis customer service at 844-340-9741. Hyundai's numbers for this recall are 298 and 032G. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov April 8, 2026.
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.
Fix: 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 NHTSA.gov on September 13, 2025.
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.
Fix: 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.
Hyundai Motor America (Hyundai) is recalling certain 2024 IONIQ 6 vehicles. The differential gear bolts in the gear drive unit may not be tightened properly, which can result in a loss of drive power or cause the differential to lock up.
Risk: A loss of drive power or differential lock up can increase the risk of a crash.
Fix: Dealers will replace the gear drive unit, free of charge. Owner notification letters were mailed June 17, 2024. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 259.
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.
Fix: This recall is replaced by NHTSA 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.
Cars shoppers compare with the Hyundai Ioniq 6, with their own 2024 checklists.
2024 owner complaints, side by side
