Hyundai Ioniq 5 Fuel system problems
0.7 vs. all vehicles Rising
41 of the 1,359 complaints about the Hyundai Ioniq 5 (3.0%) concern Fuel system, making it the model's #6 problem area. That share is 0.7× the Fuel system share across all tracked vehicles.
41Complaints · Fuel system
3.0%Share of complaints
0.7×vs. all vehicles
24Last 12 months
2.4%Share involving a crash or fire
0Related recalls
Analysis
24 Fuel system complaints were filed in the last 12 months versus 6 in the 12 months before — up 300%.
1 of these reports (2.4%) describes a crash or fire, with 0 injuries and 0 deaths mentioned.
No recall campaign addresses Fuel system for the tracked model years.
When complaints were filed
Last 12 months: 24 · Previous 12 months: 6
What owners report
We are reporting a suspected thermal runaway incident involving our recently purchased used 2023 Hyundai Ioniq 5 and have significant concerns regarding the vehicle's safety.
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…
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.
SAFETY DEFECT REPORT: 2025 HYUNDAI IONIQ 5 HIGH-VOLTAGE BATTERY FAILURE On Sunday, July 5, 2026, at approximately 24,000 miles, the vehicle suddenly displayed a critical dashboard safety alert notifying me of an electrical propulsion failure and explicitly…
Car has only 3307 miles and incurred a DTC P1A9096. This meant the vehicle only had power from the 12 volt battery, not traction battery. Luckily, the event happened 3 miles from home and we were able to just make it.
I was driving my vehicle on a freeway with 3 passengers when i heard a muffled pop or thud from behind me. A rear passenger confirmed that it came from beneath the rear seat towards the left side of the car.
Excerpts from complaints filed with NHTSA, trimmed for length. The ODI number is NHTSA's record identifier.
Related recalls
No recall campaign addresses Fuel system for the tracked model years.
Problem areas · Hyundai Ioniq 5
- Electrical752
- Transmission / powertrain222
- Engine121
- Unspecified or other59
- Driver-assist systems51
- Fuel system41
Hyundai Ioniq 5 problems, complaints & recalls by model year ›
Related reading
- Stalling and loss of motive power: why a stall at speed is a safety problemWhy a stall at speed is treated as a crash risk, the fuel pump, engine, transmission and high-voltage causes owners report, what to do in the moment, and where the complaints concentrate now.