Hyundai Ioniq 5 Electrical System Problems
Owners have filed 994 complaints with NHTSA about electrical system problems on the Hyundai Ioniq 5 across 5 model years. The 2022 model year has the most (307). The words owners use most often: “iccu failed” (14% of reports).
- 994electrical system complaints
- —median miles at failure
- 10mention a crash
- 4mention an injury
- 7related recalls
- 22%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Iccu failed: mentioned in 144 of 994 complaints (14%)
- 12V battery: mentioned in 138 of 994 complaints (14%)
- Check power supply: mentioned in 97 of 994 complaints (10%)
- Charging control: mentioned in 91 of 994 complaints (9%)
At what mileage do electrical system problems happen?
Based on 34 complaints that reported the odometer reading.
How serious are the reports?
Of 994 complaints, 10 mention a crash, 3 a fire, 4 an injury.
Hyundai Ioniq 5 electrical system complaints by model year
| Model year | Electrical System complaints | Share of that year | Median miles |
|---|---|---|---|
| 2026 Ioniq 5 | 11 | 44% | 160 |
| 2025 Ioniq 5 | 226 | 76% | 8,000 |
| 2024 Ioniq 5 | 177 | 79% | 10,120 |
| 2023 Ioniq 5 | 273 | 70% | 16,154 |
| 2022 Ioniq 5 | 307 | 75% | 21,500 |
When owners reported it
Related recalls (7)
Electrical system:propulsion system:traction batteryPark outside
Model years: 2023, 2024
Problem: Hyundai Motor America (Hyundai) is recalling certain 2023-2024 Ioniq 5 vehicles. The high voltage battery cells may contain misaligned electrodes, which can lead to a fire while parked or driving.
Risk: A fire increases the risk of injury.
Fix: Owners are advised to park outside and away from structures and limit their charge to a maximum of 80% until the recall repair is complete. Dealers will replace the high voltage battery system assembly, free of charge. Owner notification letters are expected to be mailed August 31, 2026. Owners may contact Hyundai's customer service at 855-371-9460. Hyundai's number for this recall is 305. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on July 3, 2026.
Electrical system:propulsion system:traction battery
Model years: 2025, 2026
Problem: 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.
Risk: An electrical short in the high voltage battery system increases the risk of a fire.
Fix: Dealers will inspect and tighten the bus bar retention bolts and replace the battery system assembly, as necessary, free of charge. Owner notification letters were mailed April 3, 2026. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 294. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 7, 2026.
Electrical system: instrument cluster/panel
Model years: 2026
Problem: 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 Hybrid, and Tucson vehicles. Due to a software error, the instrument panel display may fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 101, "Controls and Displays."
Risk: An instrument panel display that fails to show critical safety information, such as the speedometer or warning lights, increases the risk of a crash.
Fix: The instrument panel display software will be updated over-the-air (OTA) or by a dealer, free of charge. Owner notification letters were mailed March 24, 2026. Owners may contact Hyundai's customer service at 855-371-9460. Hyundai's number for this recall is 293. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on January 28, 2026.
Electrical system:propulsion system:traction batteryPark outside
Model years: 2025
Problem: 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.
Risk: An electrical short in the high voltage battery system increases the risk of a fire.
Fix: Owners are advised to park their vehicles outside and away from structures until the recall remedy is complete. Dealers will inspect and repair the high voltage battery system, as necessary, free of charge. Owner notification letters were mailed August 25, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 280.
Air bags:side/window; electrical system:wiring
Model years: 2025
Problem: 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.
Risk: A rear side air bag that does not deploy as intended can increase the risk of injury in a crash.
Fix: Dealers will inspect and replace the rear floor wiring harness, as necessary, free of charge. Owner notification letters were mailed March 12, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 274.
Electrical system:propulsion system:charging:module:software; electrical system:12v/24v/48v battery
Model years: 2022, 2023, 2024
Problem: 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.
Electrical system:12v/24v/48v battery; electrical system:propulsion system:charging:module:software
Model years: 2022, 2023, 2024
Problem: 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.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
I was driving my vehicle and it suddenly lost all power. I had to stop in an unsafe place on the road and wait to get my car towed. I had previously been to the dealership three times to have recall and software updates done that weâre supposed to fix this issue. Apparently the ICCU to be a…
On June 6, 2026 (mileage 2500) I went to my garage to get the car to go to an appointment. I could not start the car. A battery icon flashed, in red, on the screen behind the steering wheel. The 12V battery had drained overnight. This pattern occurred twice more -- on July 9, 2026 (mileage 3100)…
My partner drove it towards location about 1 mile away. Partner had driven it about 3 miles each way just a few hours earlier. Also drove it about 5 hours earlier in the morning, then I drove it about 10 miles. I charged it at home L2 (6.8kW) successfully hours before partner drove it and…
The Integrated Charging Control Unit (ICCU) has failed repeatedly on this vehicle. It has been replaced three times by Haselwood Hyundai dealer since the vehicle was purchased new in 2021. Dates: 9/8/2023, 12/19/2024, 9/30/2025 at approximately 17k, 35k, and 50k miles. Each failure presents the…
Vehicle was involved in a double fatal. After viewing of dashcam video I suspect a malfunction of the vehicle may have occurred. The video appears to show the vehicle continuously accelerating despite the sound of what may be the driver attempting to repeatedly mash on the brakes. EDR records do…
Frequently asked questions
Do all Hyundai Ioniq 5s have electrical system problems?
No. NHTSA has 994 owner complaints about electrical system for the Hyundai Ioniq 5. Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the Hyundai Ioniq 5 electrical system?
Yes: 7 safety recalls list electrical system. Check your VIN on NHTSA.gov to see whether the fix was done on your car.
What do owners say about electrical system problems on the Hyundai Ioniq 5?
The most frequent phrase is “iccu failed”, in 144 of 994 complaints, followed by “12v battery” (138).
Other Hyundai Ioniq 5 problems
- Fuel/propulsion System problems (275)
- Power Train problems (251)
- Engine problems (117)
See all Hyundai Ioniq 5 problems.