2023 Hyundai IONIQ 5 electrical system problems
269 owner complaints filed with NHTSA name the electrical system on the 2023 Hyundai IONIQ 5 — 70% of all complaints for this model year.
What owners report
“The ICCU malfunctioned. Safety impaired because it likely impacted the ADAS, which concurrently failed. Yes, the problem has been inspected and confirmed by a dealer.”
filed Jul 23, 2026
“The contact owns a 2023 Hyundai Ioniq 5. The contact stated that while driving at higher speeds occasionally, the vehicle suddenly lost motive power. The "Smart Smooth Cruise Control Conditions Not Met" warning message was displayed on the instrument panel. The contact restarted the vehicle as a…”
filed Jul 9, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- High voltage battery cells may contain misaligned electrodes, which can lead to a fire…Campaign 26V432000 · Jul 2, 2026
- Integrated Charging Control Unit (ICCU) may become damaged and stop charging the 12-volt…Campaign 24V868000 · Nov 18, 2024
- Integrated Charging Control Unit (ICCU) may become damaged and stop charging the 12-Volt…Campaign 24V204000 · Mar 15, 2024
Related service bulletins
Certain 2022 – 2024 model year IONIQ 5, 2024 model year IONIQ 5 Robotaxi, and 2023 – 2025 model year IONIQ 6 vehicles may require a replacement of the Integrated Charging Control Unit (ICCU) and ICCU Fuse. At Hyundai…
Z14 OL · Warranty Program/Extension · issued Jun 25, 2026This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and…
26-GI-002H TSB · Service Bulletin/Repair Instructions · issued May 27, 2026Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use (whichever occurs first)…
26-EV-004H DCS · Warranty Program/Extension · issued May 14, 2026Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use (whichever occurs first)…
26-EV-004H DN · Warranty Program/Extension · issued May 13, 2026Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use (whichever occurs first)…
26-EV-004H TSB · Warranty Program/Extension · issued May 12, 2026
Electrical System problems in other IONIQ 5 years
| Year | Reports | Share |
|---|---|---|
| 2026 IONIQ 5 | 9 | 47% |
| 2025 IONIQ 5 | 216 | 77% |
| 2024 IONIQ 5 | 174 | 80% |
| 2022 IONIQ 5 | 303 | 76% |
Other reported problem areas on the 2023 Hyundai IONIQ 5
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.