Last updated: 2026-10-10
Hyundai Ioniq 5 Electrical Problems
The Hyundai Ioniq 5 most often fails when its charging control unit (ICCU) breaks, and the car drops into a power-limited mode and can shut down.
- Owner complaints
- 555
- Share of all complaints
- 58%
- Crash / fire / injury reports
- 5 / 1 / 0
- Related recalls
- 6
Ioniq 5 electrical complaints by model year
The 2022 model year has the most electrical complaints, followed closely by 2023. Both also have the highest rates per vehicle sold. The 2024 and 2025 model years have far fewer complaints, but the same ICCU failure shows up in their reports. The 2026 model year has almost none, which mostly reflects how little time it has had on the road. It should not be read as a sign that the problem is fixed. Recall records cover the ICCU on 2022 through 2024 cars, and other electrical recalls cover 2025 and 2026.
- 2022208 · 90.5/10k sold
- 2023176 · 51.9/10k sold
- 202486 · 19.4/10k sold
- 202584 · 17.9/10k sold
- 20261 · 4.7/10k sold
Owner complaints filed with NHTSA under electrical system. Newer model years have had less time to collect complaints.
What goes wrong
Most electrical complaints on this model follow one script. Owners hear a loud pop, then the dash says "Check electric vehicle system." A turtle icon and a "power limited" message follow. Speed falls to around 20 to 30 mph, and the car often dies within minutes. Dealers usually trace the fault to the Integrated Charging Control Unit (ICCU), which also keeps the 12-volt battery charged. When it fails, the 12-volt battery drains, home charging stops, and jump starts help only briefly.
This is a real safety issue. Cars have lost power on highways and in traffic, and owners describe pulling onto shoulders at a crawl. Several crash reports say the car would not stop when the brake was pressed, and one includes a surge of acceleration. One fire report describes a charging pin that melted during DC fast charging. Many cars end up undrivable at the dealer for weeks, because replacement parts are often back-ordered. Owners also report failures after the recall software fix.
Symptoms owners report
Pop, warning, then power loss
A loud pop is followed by "Check electric vehicle system." The turtle icon appears and speed drops to roughly 15 to 30 mph. Some cars shut down completely within minutes, including at highway speed or in traffic.
Dead 12-volt battery
The 12-volt battery stops charging, so the car will not start or unlock. Owners report jump starts and new batteries helping only for a short time. Some cars refuse a home charge, even when plugged in overnight.
Charging problems
Cars refuse a Level 2 home charge after the fault. One owner describes charging that stops and restarts every few minutes before ending early. One report describes a charging pin melting during DC fast charging.
Multiple warning lights at once
Some owners see several warnings at start-up, including lane assist, ABS, parking brake and collision warnings. One owner says the brakes felt steadily lighter on the drive to the dealer.
Brake or acceleration problems
Crash reports describe the car not stopping when the brake was pressed. One owner reports a surge of acceleration into a garage wall. A dealer told another owner the brake battery had not received a charge from the main battery.
High-voltage battery trouble
Smaller patterns include lost range on a young car and high-voltage battery replacements on 2025 cars. One 2025 owner reports two replacements.
When the problems start
Owners report failures early. Examples include a 2025 car at 4,000 miles, another at 8,700, and one at 9,400. A 2024 car failed at 5,034 miles. Several 2022 and 2023 cars failed between roughly 13,000 and 25,000 miles. One 2022 owner reports the failure at 24,962 miles. Low mileage does not protect a car from this fault.
Repairs and recalls
Dealers usually replace the ICCU and sometimes a fuse. Owners say parts are often back-ordered, and cars sat for weeks, one for five weeks. Some owners report the fault returning after the repair or after a software update. One 2022 owner is in a buy-back process. Federal recall records list two ICCU recalls for 2022 to 2024 cars, with free inspection and replacement of the ICCU and its fuse plus a software update. The newer recall replaces the earlier one. Other recalls cover a high-voltage battery bus bar and rear airbag wiring on 2025 cars, and an instrument panel display update on 2026 cars. The data gives no repair costs.
| Model years | Campaign | Problem |
|---|---|---|
| 2025, 2026 | 26V068000 | Hyundai Motor America (Hyundai) is recalling certain 2025-2026 IONIQ 5 and 2026 IONIQ 9 vehicles. The high voltage battery system may contain an improperly tightened bus bar, which can cause a short-circuit. |
| 2026 | 26V047000 | Hyundai Motor America (Hyundai) is recalling certain 2025-2026 Tucson Hybrid, Tucson Plug-In Hybrid Electric (PHEV), 2026 IONIQ 5, Santa Cruz, Kona, Palisade, Palisade Hybrid, Santa Fe, Santa Fe Hybrid, Sonata, Sonata… |
| 2025 | 25V482000Park outside | Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 vehicles. The high voltage battery system may contain an improperly tightened bus bar, which can cause a short-circuit. |
| 2025 | 25V064000 | Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 EV vehicles. The rear floor wiring harness may contain an open circuit, which can result in the rear side air bag not deploying as intended. |
| 2022, 2023, 2024 | 24V868000 | 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)… |
| 2022, 2023, 2024 | 24V204000 | 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)… |
Checking a used Ioniq 5 for electrical problems
- Run the VIN through the NHTSA recall lookup and confirm the ICCU recall work is done on 2022 to 2024 cars.
- Ask for dealer service records showing any ICCU or fuse replacement, and whether the fault came back afterward.
- Ask whether the 12-volt battery has been replaced or jump started, since repeated dead batteries point to the charging unit.
- Check the 2025 and 2026 recall status for the high-voltage battery bus bar and display software.
- Test a Level 2 home charger and a DC fast charger. Look for interrupted charging and inspect the charge port pins for burn marks.
- Cold start the car and watch the dash for any warning lights, then ask for a pre-purchase inspection at a Hyundai dealer.
6 electrical recalls cover the Hyundai Ioniq 5. A VIN check shows whether the car you're looking at had its recall work done, plus accident and title history.
Hyundai Ioniq 5 Electrical Problems: common questions
- Which Ioniq 5 years have the most electrical problems?
- The 2022 and 2023 model years have the most electrical complaints, and the highest rates per vehicle sold. The 2024 and 2025 years have fewer, but report the same ICCU failure. The 2026 year has almost none, mostly because it is new.
- Is it safe to drive an Ioniq 5 with an ICCU warning?
- Owners describe the car dropping to about 15 to 30 mph and then shutting down, sometimes on highways. A warning means the car can lose power with little notice. Pull over safely and call the dealer rather than driving far.
- Does a recall cover the Ioniq 5 ICCU problem?
- Yes, for 2022 to 2024 cars. Federal records list two recalls for a damaged ICCU that may stop charging the 12-volt battery and cause a loss of drive power. The newer recall replaces the earlier one. Repairs are free. Some owners report failures after the work.
- What does an Ioniq 5 ICCU repair cost?
- The data does not list a repair cost. Under the recall, dealers inspect and replace the ICCU and its fuse as needed, plus a software update, at no charge. Owners mostly report long waits for parts rather than bills.
- Can the problem come back after the repair?
- Some owners say yes. Complaints describe the same warnings returning within a short time after recall work, and one 2025 owner reports a replacement unit failing again. Ask for records of any past repair before you buy.
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