2022 Hyundai Ioniq 5 engine problems

Related recalls

No recalls on file.

What owners say

1. Filed Aug 26, 2026UTElectrical SystemEngine

   Active powertrain failure on my 2022 Ioniq 5 SE, which poses an immediate and severe safety risk. On May 18, 2026, the vehicle suffered a catastrophic loss of power and a complete failure to charge. At Murdock Hyundai of Lindon, technicians diagnosed it with trouble code P1AA600 and recommended a total high-voltage battery pack replacement at a cost of over $44,000. Immediate Fire & Safety Risk: The dealership technician explicitly warned me that if I continue to attempt to…

   NHTSA complaint #11759832 · source
2. Filed Jun 12, 2026UTFireElectrical SystemEngine

   Component that failed: High-voltage main battery pack assembly and associated electrical architecture. The vehicle and the component are currently located at my home and are available for inspection upon request. Description of Incident & Safety Risk: While attempting to drive the car and when connected to the vehicle to a standard charging infrastructure, a catastrophic internal failure occurred within the high-voltage system (Diagnostic Trouble Code P1AA600). Upon…

   NHTSA complaint #11743803 · source
3. Filed Apr 10, 2026CAElectrical SystemEngineFuel, Hybrid & EV Propulsion

   The 2022 ioniq 5 was bought used with 43k MI and within 2k miles of driving in 50-85F climate and 7kwh l2 charging I witnessed the orange check EV light flash while I was driving on the highway. I exited and powrr cycled the car and the EV light remained. The next morning the orange check EV light was gone. I went to the dealership for a diagnostic and they said they could not replicate the error code or had found any history of the error code coming up without proving to me…

   NHTSA complaint #11730459 · source
4. Filed Mar 30, 2026TXElectrical SystemEngineFuel, Hybrid & EV Propulsion

   I am filing this complaint regarding Hyundai Motor America's failure to complete a vehicle repair in a timely manner on my 2022 Hyundai Ioniq 5 (VIN: [XXX] ), which has been at Hyundai of Leander, an authorized Hyundai service center in Leander, Texas, since September 2025 — more than six months — awaiting a replacement high-voltage battery. (Case No. XXX) I purchased this vehicle in September 2025 from Apple Sport Imports in [XXX] . The vehicle was sent immediately to…

   NHTSA complaint #11727928 · source
5. Filed Mar 26, 2026MDElectrical SystemEngineFuel, Hybrid & EV Propulsion

   On January 19, 2026, the vehicle lost power while driving and required a tow to the local dealership. After inspection, the dealership determined that the ICCU was at fault and needed to be replaced. The ICCU part was backordered. The vehicle was inoperable for 6 weeks as we waited for the part to be available and installed.

   NHTSA complaint #11727197 · source
6. Filed Feb 3, 2026WAElectrical SystemEngineOther / Unknown

   The Ioniq 5 has a known issue with a part called the ICCU. When the part fails, which it seems to inevitably do despite multiple recall repair visits and software upgrades, the car ceases to be driveable. In advance of this moment when your multi ton vehicle turns into a brick you get a short warning saying pull over, but that is not always possible. The car starts loudly beeping and reduces its max speed to 12 mph, which is not great on the freeway. The ICCU is a huge…

   NHTSA complaint #11715398 · source
7. Filed Jan 30, 2026ILElectrical SystemEngineFuel, Hybrid & EV Propulsion

   After pre warming the car in the garage, I left for work. Three minutes into the drive I heard a single popping sound from the passenger side rear of the car. I then received an error on the dash "Stop Vehicle and check power supply". I them drove 4 more miles to work with the hazards on. Two hours later I attempted to drive it to the dealer and it stopped .5 miles away. Hyundai had it towed the rest of the way.

   NHTSA complaint #11714610 · source
8. Filed Jan 20, 2026MDElectrical SystemEngineFuel, Hybrid & EV Propulsion

   This is an EV vehicle. This is a recurrent problem with the Ioniq 5 and is all over the internet. For me this is the 2nd electrical failure. The first time the accessory batter failed and the ICCU controller failed and had to be replaced. Now its at the shop for the 2nd time for the same failure. Not sure if its the ICCU again or not. In and of itself not a problem to send it off to fix, The major issue is how it fails. There is no warning, If you are on the highway going 70…

   NHTSA complaint #11712032 · source
9. Filed Jan 16, 2026CAEngineTransmission & Drivetrain

   To my understand, the ICCU keeps shutting down and is causing issues with my car? This is apparently a huge issue with a bunch of Hyundai's from 2022.

   NHTSA complaint #11711561 · source
10. Filed Jan 4, 2026ILElectrical SystemEngineTransmission & Drivetrain

    While charging at a level 2 charger (6 kW) the car stop charging at 61% for no apparent reason. I was unable to restart charging. Within 2-3 minutes of starting the car and driving, received a warning to “check the vehicle electrical system” and then within another minute or two, another warning to “stop vehicle and check power supply.” I was traveling under 20 mph the entire time.

    NHTSA complaint #11708691 · source
11. Filed Dec 3, 2025TXElectrical SystemEngine

    I have had all recall updates on the car including a recent one on 10/13/2025. Turned on the heater on the first cold night in Dallas this fall and got the engine warning light. Checked the ODB and code was P1A90(96). I was able to drive it to the dealer with a 40 mph max speed. The funny thing is my ICCU has already been replaced under warranty once like 16 months ago, so it seems the replacement parts aren't much better than the original. Dealer confirmed it is an ICCU…

    NHTSA complaint #11702654 · source
12. Filed Dec 1, 2025NYElectrical SystemEngineTransmission & Drivetrain

    On November 29 2025 my 2022 Hyundai Ioniq 5 with 49000 miles was warming up in the driveway. I heard a pop sound from the back seat like a soda can being opened (or a fuse blowing). Immediately afterwards warning lights appeared on the dash saying "Check Electrical System." The vehicle lost power to accelerate and could not be driven effectively. After a few moments, another error saying "Power is Limited" appeared. This could have happened on the roadway which would have…

    NHTSA complaint #11702325 · 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