2026 Hyundai IONIQ 5 electrical system problems
10 owner complaints filed with NHTSA name the electrical system on the 2026 Hyundai IONIQ 5 — 43% of all complaints for this model year.
What owners report
“The vehicle will not turn off. I returned it to the Dealer, Oakland Hyundai, and their service department has had the vehicle since 7/27/26. When I brought the vehicle in to service it had 2,519 miles. Service rep has advised that technicians are trying to find the faulty part and have been…”
filed Aug 25, 2026
“My car would no longer charge after testing various chargers at home and different public charging stations. If this had happened away from home, and without cell service, I might have been stranded. I took I into the Hyundai service center, and they said the ICCU had failed. They replaced if after…”
filed Apr 27, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- High voltage battery system may contain an improperly tightened bus bar, which can cause…Campaign 26V068000 · Feb 5, 2026
- Due to a software error, the instrument panel display may failCampaign 26V047000 · Jan 26, 2026
Related service bulletins
Certain IONIQ 5 (NEA EV) vehicles may have 12V battery drainage due to the scheduled climate feature. Technical Service Bulletin (TSB) 26-01-046H provides instructions to perform a software update for the Vehicle…
26-01-046H DCS · Warranty Program/Extension · issued May 16, 2026Certain IONIQ 5 (NEA EV) vehicles may have 12V battery drainage due to the scheduled climate feature. This bulletin provides instructions to perform a software update for the Vehicle Control Unit (VCU) to improve the…
26-01-046H TSB · Warranty Program/Extension · issued May 15, 2026Certain IONIQ 5 (NEA EV) vehicles are eligible for a software update to the VCMS which would enable the Plug and Charge (PNC) function to support its use on Tesla V3 and V4 Superchargers, IONNA chargers, and ChargePoint…
26-01-043H TSB · Warranty Program/Extension · issued May 8, 2026Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink functions. This may be due to an occasional disconnection on Verizon’s communication network. Follow the procedures in…
26-01-035H TSB · Service Campaign · issued Apr 8, 2026
Electrical System problems in other IONIQ 5 years
| Year | Reports | Share |
|---|---|---|
| 2025 IONIQ 5 | 225 | 76% |
| 2024 IONIQ 5 | 176 | 79% |
| 2023 IONIQ 5 | 271 | 70% |
| 2022 IONIQ 5 | 304 | 75% |
Other reported problem areas on the 2026 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.