Hyundai Ioniq 5 Fuel/propulsion System Problems
Owners have filed 275 complaints with NHTSA about fuel/propulsion system problems on the Hyundai Ioniq 5 across 5 model years. The 2022 model year has the most (90). The words owners use most often: “iccu failed” (15% of reports).
- 275fuel/propulsion system complaints
- —median miles at failure
- 3mention a crash
- 2mention an injury
- 0related recalls
- 29%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Iccu failed: mentioned in 41 of 275 complaints (15%)
- Check power supply: mentioned in 40 of 275 complaints (15%)
- 12V battery: mentioned in 34 of 275 complaints (12%)
- Charging control: mentioned in 28 of 275 complaints (10%)
At what mileage do fuel/propulsion system problems happen?
How serious are the reports?
Of 275 complaints, 3 mention a crash, 2 a fire, 2 an injury.
Hyundai Ioniq 5 fuel/propulsion system complaints by model year
| Model year | Fuel/propulsion System complaints | Share of that year | Median miles |
|---|---|---|---|
| 2026 Ioniq 5 | 1 | 4% | — |
| 2025 Ioniq 5 | 66 | 22% | — |
| 2024 Ioniq 5 | 51 | 23% | — |
| 2023 Ioniq 5 | 67 | 17% | — |
| 2022 Ioniq 5 | 90 | 22% | — |
When owners reported it
Related recalls (0)
No safety recall lists fuel/propulsion system for the Hyundai Ioniq 5. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
The Integrated Charging Control Unit (ICCU) has failed repeatedly on this vehicle. It has been replaced three times by Haselwood Hyundai dealer since the vehicle was purchased new in 2021. Dates: 9/8/2023, 12/19/2024, 9/30/2025 at approximately 17k, 35k, and 50k miles. Each failure presents the…
On 8/30 my vehicle experienced a power loss on a highway (reported here separately). I took the car to the dealership and they could not replicate the error and gave the vehicle back to me on 9/4. Later that day I had to drive 2 hours north to a wedding in the mountains. At 9:30pm my vehicle…
Driving home near my apartment, I had to join a busy highway from a full stop. I found a small gap and tried to accelerate to quickly merge into traffic, when my car made a high pitched alert noise and noticably did not accelerate beyond about 25 miles per hour on a 45-50mph highway with heavy…
While driving this EV with cruise control on, the dashboard suddenly showed a message that âSmart Cruise Control conditions not metâ. Attempting to re-engage the cruise control did not work and then the vehicle suddenly lost all propulsion (pressing the accelerator did nothing). The car quickly…
Failure of the iccu. Needed complete replacement under warranty. Unable to charge via any AC charger. The iccu had already been repaired under an existing recall.
Frequently asked questions
Do all Hyundai Ioniq 5s have fuel/propulsion system problems?
No. NHTSA has 275 owner complaints about fuel/propulsion system for the Hyundai Ioniq 5. Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the Hyundai Ioniq 5 fuel/propulsion system?
No recall currently lists fuel/propulsion system for this vehicle.
What do owners say about fuel/propulsion system problems on the Hyundai Ioniq 5?
The most frequent phrase is “iccu failed”, in 41 of 275 complaints, followed by “check power supply” (40).
Other Hyundai Ioniq 5 problems
- Electrical System problems (994)
- Power Train problems (251)
- Engine problems (117)
See all Hyundai Ioniq 5 problems.