2024 Hyundai Ioniq 5 fuel system problems
51 of the 222 complaints owners filed with NHTSA about the 2024 Hyundai Ioniq 5 name the fuel system (NHTSA’s “Fuel/Propulsion System” heading — fuel tanks, lines, pumps and injection — and on an EV, the propulsion battery and motors). Filed under the same heading: 2 manufacturer bulletins. Every figure below is a document in a federal file, linked; none is a failure rate, and none is a verdict on any one car.
What owners filed about the fuel system
Source: NHTSA complaint database1 of the 51 reports a crash · 0 a fire · 0 injuries. Self-reported, unverified.
Filed per year: 2024: 2 · 2025: 17 · 2026: 32
Too few of these complaints carry an odometer reading to say when the problem shows up.
222 complaints in all about the 2024 Hyundai Ioniq 5, 32 filed in 2026. The whole picture, every system →
Counts are owner reports to NHTSA, not verified defects, and scale with how many of these were sold; nothing here is a rate. NHTSA groups complaints coarsely, so “Fuel/Propulsion System” means the same area of the vehicle, not one fault.
Across model years: Hyundai Ioniq 5 fuel system problems, every year on file →
In owners’ own words
Source: NHTSA complaint databaseFiled with NHTSA by the people who own these cars, about the fuel system. Quoted as written, with anything identifying removed; unverified reports — what was said, not a finding that it was true.
2/28/26 Driving home, heard a loud pop, notice is on the dash say check vehicle electrical system. Vehicle begins to slow down and eventually die. Called the manufacturer and had it towed to the dealership. The ICCU had failed
Car won’t start and is completely dead. Doors won’t open, including charge port door. Once you manually unlock car is totally dead inside. Took to dealer for an ICCU replacement under warranty but died again 1 week later. Another ICCU failure? Terrible
While pulling into traffic the car lost power and went into limp mode risking a collision. Car was immediately backed into driveway and completely died shortly after the initial power loss and had to be towed to dealer. Dealer diagnosed an ICCU failure. Warning lights activated at the moment the car lost power.
“Check EV System” error appeared in a red circle, with a red 12v battery icon. Then a turtle icon appeared and the car would not exceed about 30 mph. I was able to drive a mile and park in a lot. This happened after Level 2 charging to 100% and then driving one mile in 25° weather. The car was towed to the dealer
As we drove toward the highway to begin our journey home in our 2024 RWD Ioniq 5 with our entire family and luggage in the vehicle, we received a "Check Electric Vehicle System" warning and immediately pulled over and called Hyundai Roadside Assistance.
What is on file about the fuel system
Source: NHTSA recalls, investigations and manufacturer communications2 manufacturer bulletins filed under this heading
- Z14 OL Warranty extensionJun 25, 2026
- Certain 2022 – 2024 model year IONIQ 5, 2024 model year IONIQ 5 Robotaxi, and 2023 – 2025 model year IONIQ 6 vehicles may require a replacement of the Integrated Charging Control Unit (ICCU) and ICCU Fuse. At Hyundai, we are committed to providing vehicles of outstanding quality and value. In an effort to meet this commitment, the warranty coverage for the Integrated Charging Control Unit (ICCU) a
- 25-EV-003H TSB Service bulletinJul 26, 2025
- Certain IONIQ 5 (NE EV), IONIQ 6 (CE EV), and IONIQ 5 N (NE EV N) vehicles may have missing Inlet 5-Pin Combo DC insulation caps (DC pin caps) which may lead to damage to the charge port if not replaced. This bulletin provides instructions to replace the DC pin cap(s).
Every one filed under the heading is listed. Quote the document number at a service desk — it is a diagnosis the maker has already written down.
Other systems with a record on the 2024 Hyundai Ioniq 5
Source: the same files- electrical problems 178 complaints
Common questions
Source: NHTSA complaint database, recalls and manufacturer communicationsAre fuel system problems common on the 2024 Hyundai Ioniq 5?
They are documented: NHTSA holds 51 owner complaints naming the fuel system on this model year (23% of everything owners filed about it), and 2 manufacturer bulletins are filed under the same heading. Whether it is a problem on one particular car is a diagnosis, not a count, and a count says nothing about how many were sold.
Is there a recall for the fuel system on the 2024 Hyundai Ioniq 5?
No recall campaign is filed under this heading for this model year (there are 3 filed under other headings). A bulletin is not a recall: it carries no federal duty to repair for free.
When do fuel system problems show up on the 2024 Hyundai Ioniq 5?
Too few of the complaints carry an odometer reading to say. The model year's page shows the mileage curve across every system where it can.
What does NHTSA's "Fuel/Propulsion System" heading cover?
Fuel tanks, lines, pumps and injection — and on an EV, the propulsion battery and motors. Owners choose the heading when they file, so it says which area of the vehicle the complaint is about, not which part failed.