2023 Hyundai IONIQ 5 vehicle speed control problems
17 owner complaints filed with NHTSA name the vehicle speed control on the 2023 Hyundai IONIQ 5 — 4% of all complaints for this model year.
What owners report
“My wife was driving our Ioniq 5 on the freeway. She received a message on the dash about the electrical system (probably ICCU failure), and then the car limited itself ("turtle mode") so that the max speed was 20mph. A minute or two later it slowed down even further to 10mph. She was able to get…”
filed Mar 2, 2026
“I am reporting a safety-related defect involving unintended vehicle movement on my Hyundai Ioniq 5 (Model Year 2023, SEL AWD). Observed behavior: With the vehicle in Drive and the Auto Hold function active (indicated by the white “AUTO HOLD” indicator in the instrument cluster), I brought the…”
filed Feb 5, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Vehicle Speed Control problems in other IONIQ 5 years
| Year | Reports | Share |
|---|---|---|
| 2026 IONIQ 5 | 1 | 5% |
| 2025 IONIQ 5 | 14 | 5% |
| 2024 IONIQ 5 | 7 | 3% |
| 2022 IONIQ 5 | 24 | 6% |
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.