2025 Hyundai IONIQ 5 engine problems
18 owner complaints filed with NHTSA name the engine on the 2025 Hyundai IONIQ 5 — 6% of all complaints for this model year.
What owners report
“The car entered a failed ICCU state (not confirmed until the car was looked at by Hyundai at the dealership) while I was driving down to Ano Nuevo regional park. Received a warning on the dash that said that electrical system has failed and to pull over. It restricted me from going over 10 mph on…”
filed Jul 15, 2026
“When I started the car at 10pm , a loud pop was heard and warning lights on the dashboard indicated an electrical problem. I turned off the radio and anything extra that could use up power; during the next 45 minutes I took surface streets instead of the freeway to drive 22 miles back home and…”
filed Jun 8, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other IONIQ 5 years
| Year | Reports | Share |
|---|---|---|
| 2026 IONIQ 5 | 1 | 5% |
| 2024 IONIQ 5 | 22 | 10% |
| 2023 IONIQ 5 | 37 | 10% |
| 2022 IONIQ 5 | 35 | 9% |
Other reported problem areas on the 2025 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.