2023 Hyundai Ioniq 5 Electrical System Problems
Owners have filed 273 complaints with NHTSA about electrical system problems on the 2023 Hyundai Ioniq 5, 70% of all complaints for this model year. Half of the reports with a mileage happened before 16,154 miles. The words owners use most often: “iccu failed” (18% of reports).
- 273electrical system complaints
- 16,154median miles at failure
- 5mention a crash
- 3mention an injury
- 3related recalls
- 23%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 49 of 273 complaints (18%)
- 12V battery: mentioned in 35 of 273 complaints (13%)
- Check electrical: mentioned in 30 of 273 complaints (11%)
- Power supply: mentioned in 22 of 273 complaints (8%)
At what mileage do electrical system problems happen?
Based on 8 complaints that reported the odometer reading.
How serious are the reports?
Of 273 complaints, 5 mention a crash, 2 a fire, 3 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 (3)
Electrical system:propulsion system:traction batteryPark outside
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:charging:module:software; electrical system:12v/24v/48v battery
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
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…
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…
ICCU failure. Car went into limp mode then towed to dealership.
Frequently asked questions
Do all 2023 Hyundai Ioniq 5s have electrical system problems?
No. NHTSA has 273 owner complaints about electrical system for the 2023 Hyundai Ioniq 5 (70% of the 388 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2023 Hyundai Ioniq 5 electrical system?
Yes: 3 safety recalls list electrical system. Check your VIN on NHTSA.gov to see whether the fix was done on your car.
At what mileage do electrical system problems start?
The median reported mileage is 16,154 miles: half of the reports with a mileage came before that.
What do owners say about electrical system problems on the 2023 Hyundai Ioniq 5?
The most frequent phrase is “iccu failed”, in 49 of 273 complaints, followed by “12v battery” (35).
Other 2023 Hyundai Ioniq 5 problems
See all 2023 Hyundai Ioniq 5 problems or electrical system problems across all Ioniq 5 years.