2025 Hyundai Ioniq 5 Electrical System Problems
Owners have filed 226 complaints with NHTSA about electrical system problems on the 2025 Hyundai Ioniq 5, 76% of all complaints for this model year. Half of the reports with a mileage happened before 8,000 miles. The words owners use most often: “iccu failed” (15% of reports).
- 226electrical system complaints
- 8,000median miles at failure
- 0mention a crash
- 0mention an injury
- 3related recalls
- 14%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 33 of 226 complaints (15%)
- 12V battery: mentioned in 30 of 226 complaints (13%)
- Integrated charging: mentioned in 27 of 226 complaints (12%)
- Check electrical: mentioned in 26 of 226 complaints (12%)
At what mileage do electrical system problems happen?
Based on 3 complaints that reported the odometer reading.
How serious are the reports?
None of the 226 complaints report a crash, fire or 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 battery
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:propulsion system:traction batteryPark outside
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
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.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
I am writing to document my case regarding my leased 2025 Hyundai Ioniq 5 XRT. Vehicle: 2025 Ioniq 5 XRT, VIN [XXX] Lease start / delivery date: Odometer: 4,368 miles Servicing dealer: Stevinson Hyundai, [XXX] Case number: XXX What happened: On Saturday, XXX, while I was driving, the vehicle…
Full electrical power system failure. Heard a loud pop noise emanating from under the rear seats of the car. The power. Failure lights came on and the car lost power. We were able to get the car to slowly drive back to the garage where it completely shut down and was inoperable from that point on…
On 8/30 my vehicle experienced a power loss on a highway (reported here separately). I took the car to the dealership and they could not replicate the error and gave the vehicle back to me on 9/4. Later that day I had to drive 2 hours north to a wedding in the mountains. At 9:30pm my vehicle…
Frequently asked questions
Do all 2025 Hyundai Ioniq 5s have electrical system problems?
No. NHTSA has 226 owner complaints about electrical system for the 2025 Hyundai Ioniq 5 (76% of the 297 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 2025 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 8,000 miles: half of the reports with a mileage came before that.
What do owners say about electrical system problems on the 2025 Hyundai Ioniq 5?
The most frequent phrase is “iccu failed”, in 33 of 226 complaints, followed by “12v battery” (30).
Other 2025 Hyundai Ioniq 5 problems
See all 2025 Hyundai Ioniq 5 problems or electrical system problems across all Ioniq 5 years.