2023 Hyundai IONIQ 5 forward collision avoidance problems
26 owner complaints filed with NHTSA name the forward collision avoidance on the 2023 Hyundai IONIQ 5 — 7% of all complaints for this model year.
What owners report
“On [XXX], I received a warning on my 2023 IONIQ 5 that said “stop vehicle and check braking system” and the car went into “turtle mode”. I took it into the dealer for repairs and they said the issue was related to the 12V battery and returned the car to me as repaired. Then, on [XXX], I was driving…”
filed Mar 9, 2026
“ICCU FAILED and Hyundai service states that part is back ordered indefinitely. Has been 2 weeks with no further updates Additionally service department is unable to repair forward monitoring sensors that quit working with the smallest amount of precipitation, sometimes just from road condensation.”
filed Feb 10, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Some 2019MY and newer vehicles equipped with a front view camera may illuminate certain warning lights and trigger DTC C272246 fault code for the front camera. In the following cases, the front camera auto-calibration…
26-AD-001H TSB · Service Bulletin/Repair Instructions · issued Feb 25, 2026
Forward Collision Avoidance problems in other IONIQ 5 years
| Year | Reports | Share |
|---|---|---|
| 2026 IONIQ 5 | 4 | 21% |
| 2025 IONIQ 5 | 23 | 8% |
| 2024 IONIQ 5 | 6 | 3% |
| 2022 IONIQ 5 | 20 | 5% |
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.