2024 Hyundai Ioniq 5 fuel, hybrid & EV propulsion problems

Related recalls

No recalls on file.

What owners say

1. Filed Aug 21, 2026WAFuel, Hybrid & EV Propulsion

   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.

   NHTSA complaint #11758474 · source
2. Filed Jun 19, 2026VTElectrical SystemFuel, Hybrid & EV Propulsion

   This is an EV . We use the regenerative braking to slow down. This car has both a front and rear dash cam. The car is about two and a half years old and has about 20,800 miles. We were approaching a red traffic light with several vehicles stopped in front of us. My partner was driving and had slowed to 8 mph, with her foot off the accelerator, advancing slowly towards the car in front of us when the vehicle experienced unanticipated, rapid acceleration. With quick reflexes,…

   NHTSA complaint #11745243 · source
3. Filed Jun 15, 2026AZElectrical SystemEngineFuel, Hybrid & EV Propulsion

   On June 13, 2026, my 2024 Hyundai Ioniq 5 experienced a sudden and dangerous propulsion failure while in active motion. The vehicle had approximately 9,447 miles on it and was at 58% battery charge at the time of the incident. The vehicle was leased in January 2025 and has been serviced exclusively at the Hyundai dealership. While driving with two occupants, the vehicle abruptly lost all ability to accelerate. The dashboard displayed a critical warning: “Stop vehicle and…

   NHTSA complaint #11744328 · source
4. Filed Apr 27, 2026NYElectrical SystemFuel, Hybrid & EV Propulsion

   I lease a 2024 Hyundai Ioniq 5 AWD. Prior to a planned trip, the vehicle displayed an electrical system warning. I contacted the dealership and was advised to bring it in. While driving approximately 5 miles to the dealership, the vehicle lost all power including hazard lights, leaving me stranded on a busy road. I contacted roadside assistance and the vehicle was towed to the dealership. The dealership confirmed the failure was caused by the ICCU (Integrated Charging…

   NHTSA complaint #11734162 · source
5. Filed Apr 22, 2026CAElectrical SystemFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   As I began a drive cycle, I heard a pop sound and received the “check electric vehicle system” warning associated with ICCU failure. With ICCU failure, if I had continued to drive the 12V battery would have run to zero and the car would have died completely. Vehicle goes to dealer tomorrow for confirmation.

   NHTSA complaint #11733152 · source
6. Filed Apr 7, 2026TXElectrical SystemFuel, Hybrid & EV Propulsion

   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.

   NHTSA complaint #11729789 · source
7. Filed Mar 30, 2026MDElectrical SystemFuel, Hybrid & EV Propulsion

   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.

   NHTSA complaint #11728139 · source
8. Filed Mar 19, 2026VAElectrical SystemEngineFuel, Hybrid & EV Propulsion

   I was driving and the car gave an electrical system warning, slowed, and thereafter would not go above about 20mph. Fortunately this happened on a local, low speed limit street. I'd rather not think about what might have happened if this had happened on a highway. The Integrated Charging Control Unit (ICCU) is no longer working as it should. The problem has been confirmed by the dealer/manufacturer service station.

   NHTSA complaint #11725530 · source
9. Filed Mar 17, 2026MEEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   I was merging onto the highway. I got a warning that I needed to check my electrical system. I was able to back down the highway ramp and park on a side street. Within 20 minutes the car was fully dead and AAA needed to tow it to the dealer. The dealer confirmed that the ICCU needs a replacement. My family is lucky this happened in a place we could safely get to a side street. Had it happened 5 minutes later we would have been stranded on the highway with 2 small children.

   NHTSA complaint #11724910 · source
10. Filed Mar 5, 2026CAElectrical SystemFuel, Hybrid & EV PropulsionAcceleration & Cruise Control

    While driving northbound on US-280 freeway, the vehicle experienced sudden deceleration with maximum speed limited to approximately 40 mph. The dashboard displayed a "Check Power Supply" warning. The vehicle required a tow to the dealership. Dealer diagnosis indicates likely ICCU (Integrated Charging Control Unit) failure. This is a known issue affecting multiple Hyundai Ioniq 5 vehicles, with numerous consumer reports of the same failure mode. The sudden loss of propulsion…

    NHTSA complaint #11722142 · source
11. Filed Feb 27, 2026NJElectrical SystemFuel, Hybrid & EV Propulsion

    On January 31st, 2026, not long after starting a journey in my car, I got a “check electrical systems” warning. I was close to home so was able to turn around and drive home. Just before pulling into the driveway, the warning changed to a “power limited” warning. On Monday Feb 2nd, I had the car towed to my local dealership, where it has been since. The dealer confirmed that it was an issue with the ICCU component which is on back order to this day.

    NHTSA complaint #11721005 · source
12. Filed Feb 24, 2026ORElectrical SystemFuel, Hybrid & EV Propulsion

    I was driving on a residential street, traveling about 25 miles per hour. I heard a loud popping sound from the back of the car and within seconds I started to lose power. I pulled over to the side of the road and my car was dead. No electrical system, I couldn't even power the locks. I waited for several hours to have it towed to the dealer where it sat for 29 days waiting for the part. It's the ICCU that failed. Had I been going at highway speeds, I very likely could have…

    NHTSA complaint #11720167 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology