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Electrical systemPart report

2025 Hyundai Ioniq 5 Electrical system Problems

Complaints
228about this part
Share
76%of 300 total for the year
Median mileage
8,000miles
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.

NHTSA recorded 228 complaints about the electrical system of the 2025 Hyundai Ioniq 5, 76% of the 300 complaints for this model year. Where a mileage was given, the median is 8,000 miles. 2 recall campaigns on record are filed under a similar system.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The Integrated Charging Control Unit in our 2025 Ioniq 5 failed on vehicle startup. Fortunately the vehicle was parked when the part failed. There were no issues or symptoms prior to the failure and subsequent fault message. Failure of the ICCU has been confirmed by our local Hyundai dealer which is now in possession of the vehicle awaiting repair.”

NHTSA complaint #11714517, filed 2026-01

“Battery warning light went on as I left my house. Since this is an EV, naturally became concerned. Car was towed to Heritage Hyundai, Towson Md and I was later informed by the technician the ICCU went bad and this was a common problem for the Hyundai/Kia EVs which Hyundai/Kia have not fixed. The car is currently at the dealer's service department.”

NHTSA complaint #11714811, filed 2026-02

“After hearing a sudden loud pop, my car lost all power. I was able to pull to the side of a busy 2 lane road. It was dangerous and scary to be stranded alone on a very busy road. The car had to be towed to the dealership. It took 48 days to replace the ICCU, fuses and the coolant. The service manager said this is a known issue.”

NHTSA complaint #11725567, filed 2026-03

“At a routine service visit to AutoNation Hyundai/Carlsbad, I received a good report on the 2025 Ioniq 5 condition. Starting the car to drive home I heard a pop sound and noted a diagnostic code that confirmed the ICCU and associated fuse had blown. Since then, Hyundai has been unable to clarify the ETA of the back ordered parts. They provided a loaner but it’s not an EV.”

NHTSA complaint #11718943, filed 2026-02

“While charging the vehicle, I heard a loud pop and the charging session stopped and could not be restarted. An error warning icon appeared on the dash with a battery icon. Also a car with an! Icon and a large circle stating check the electrical system. I was able to drive a few miles before the car completely died.”

NHTSA complaint #11717078, filed 2026-02

Related recalls

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
20261346%
202522876%
202417979%
202327370%
202230775%

Other parts of the 2025 Hyundai Ioniq 5

Fuel system
66 complaintsTransmission and drivetrain
57 complaintsForward collision avoidance
24 complaintsOther or unknown
24 complaintsEngine
20 complaintsLane departure
17 complaintsVehicle speed control
16 complaintsBrakes
5 complaintsSteering
5 complaintsAir bags
3 complaintsBody and structure
3 complaintsSeat belts
2 complaints

← All problems reported for the 2025 Hyundai Ioniq 5

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology