IllustrationHeard a pop and received warnings of electrical failure. Car could only accelerate to 10 mph and battery eventually died. Towed it to the dealer and they confirmed that the ICCU failed and needed replacement.
2025 Hyundai Ioniq 5
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Ioniq 5 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 3 of 296 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 225 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel/propulsion System. Review the 66 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 56 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
3 crash reports0 fire reports2 injury reports
What owners actually said
296 reportsDespite going back to the dealer to address the issue, and trying all the recommended modifications, the Forward Attention Warning (FAW) goes off repeatedly when the car is utilizing adaptive cruise control. I have written and called Hyundai National to ask to defeat this feature and it is not allowed. This FAW alarm (ironically…
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Despite going back to the dealer to address the issue, and trying all the recommended modifications, the Forward Attention Warning (FAW) goes off repeatedly when the car is utilizing adaptive cruise control. I have written and called Hyundai National to ask to defeat this feature and it is not allowed. This FAW alarm (ironically) diverts my attention from driving as I am having to constantly respond to the alarm. I need the adaptive cruise control in certain situations and Hyundai will not allow me to override the FAW when the car is in adaptive cruise control. Other cars allow for this feature to be fully defeated (e.g. Toyota Prius Prime). I am worried I will have an accident because I am distracted by this alarm going off.
I was driving down the highway at about 65 mph. "Electrical failure" warning showed up and the abruptly began to lose power. We were able to pull over 2 lanes to the shoulder. The car then completely shut down after about 2 minutes. I was unable to have my hazards on and 2 young children in car seats were in my vehicle. I was on…
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I was driving down the highway at about 65 mph. "Electrical failure" warning showed up and the abruptly began to lose power. We were able to pull over 2 lanes to the shoulder. The car then completely shut down after about 2 minutes. I was unable to have my hazards on and 2 young children in car seats were in my vehicle. I was on a really bad part of the road and had to move two young children into another car and barely had enough power to get over. The dealer told me I just had a bad battery and they replaced it and it was fine. I called Hyundai corporate and they said "they weren't aware of any issues with the cars ICCU" it wasn't until my husband called the dealer again and had to be extremely pushy with them that they saw it was an ICCU failure. They are replacing it now.
ICCU failure
ICCU failure randomly while driving. Left me stranded during a cold night until a tow truck could come. Dealer has confirmed ICCU failure and Hyundai is repairing under warranty.
I was driving to work on the morning of Nov. 12th, 2025 in East Greenwich RI. The car had been fully charged on my home Level 2 charger the night before. It was a chilly morning so I turned on the heated driver seat and steering wheel. Less than a mile from my house, and without any warning or prior issues, I heard a loud pop fr…
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I was driving to work on the morning of Nov. 12th, 2025 in East Greenwich RI. The car had been fully charged on my home Level 2 charger the night before. It was a chilly morning so I turned on the heated driver seat and steering wheel. Less than a mile from my house, and without any warning or prior issues, I heard a loud pop from underneath the vehicle. Immediately the car displayed an error on the dash reporting electrical system issues. The car still seemed driveable so I began to drive back home, noting that the car wouldn't exceed ~30 mph, but before I went very far at all the error changed to "Stop vehicle and check power supply." I pulled the car over on a side road and called for a tow to the nearest Hyundai service center in North Kingstown, RI. The next day the Hyundai service center reported that their diagnostics revealed that the ICCU had failed. I subsequently learned that they had been unable to drive the car even from their lot into the service bay - even with a jump charger the car wouldn't drive and they had to carry the scanner to the lot for the diagnosis. The Hyundai app reports 96% battery charge even now, which says that the 12V battery has been fully discharged, consistent with ICCU failure. The service center has not reported that the ICCU has been inspected by any other authorities other than them. The replacement part is due to arrive today, 11/15, and should be installed on Monday 11/17. This exact problem is apparently very common to Hyundai and Kia EVs, and was the subject of a recall for the 2022-24 IONIQ 5 model years.
Was driving for 12 miles, at a stop light. Light turns green, I accelerate, loud collision warning goes off and warning “battery overheated! Pull over safely and leave the vehicle”. Could not pull over safely because the car immediately ceased and locked up, car behind me nearly rear ended me and swerved to avoid. Is this anothe…
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Was driving for 12 miles, at a stop light. Light turns green, I accelerate, loud collision warning goes off and warning “battery overheated! Pull over safely and leave the vehicle”. Could not pull over safely because the car immediately ceased and locked up, car behind me nearly rear ended me and swerved to avoid. Is this another ICCU unit failure? Car towed to dealership (car has 2056 miles in it, it’s practically new) and been there for almost a month now with no repairs done and still diagnosing the problem. This car is unsafe.
EV battery failure. This is a known issue that Hyundai is refusing to acknowledge is a common problem on their cars.
On the first snowy day of the year, the car experienced an apparent ICCU failure. Loud pop followed by warning lights, reduced power and eventual complete shutdown of the car. Car has been towed to dealership for diagnosis and repair.
I heard a "pop" and then immediately saw "check electric vehicle system". The code I'm receiving in the app is P1A9096. The car was limited in driving speed, and I managed to get the car to the dealer before it stopped driving completely. I have about 8000 miles on this <1 year old car, and it seems like the ICCU has fried. Hyu…
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I heard a "pop" and then immediately saw "check electric vehicle system". The code I'm receiving in the app is P1A9096. The car was limited in driving speed, and I managed to get the car to the dealer before it stopped driving completely. I have about 8000 miles on this <1 year old car, and it seems like the ICCU has fried. Hyundai says this is under 1% of all cars, but from the internet it seems like this happens way more frequently. Reporting to the NHTSA so that there's record of this happening, given the frequency it seems to happen on the internet and the paucity of solutions (beyond putting in another faulty part) from Hyundai.
Official recalls
926V314000 · Suspension:critical Fasteners
May 18, 2026
Hyundai Motor America (Hyundai) is recalling certain 2025 Ioniq 5 and 2026 Ioniq 9 vehicles. The fasteners for the rear suspension may loosen and detach, which can result in a loss of vehicle control.
Consequence & remedy
Consequence: A loss of vehicle control increases the risk of a crash.
Remedy: Dealers will inspect and replace the rear suspension fasteners and perform a rear vehicle alignment, as necessary, free of charge. Owner notification letters are expected to be mailed July 17, 2026. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 303. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on May 20, 2026.
26V068000 · Electrical System:propulsion System:traction Battery
Feb 5, 2026
Hyundai Motor America (Hyundai) is recalling certain 2025-2026 IONIQ 5 and 2026 IONIQ 9 vehicles. The high voltage battery system may contain an improperly tightened bus bar, which can cause a short-circuit.
Consequence & remedy
Consequence: An electrical short in the high voltage battery system increases the risk of a fire.
Remedy: Dealers will inspect and tighten the bus bar retention bolts and replace the battery system assembly, as necessary, free of charge. Owner notification letters were mailed April 3, 2026. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 294. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 7, 2026.
25V797000 · Seat Belts:front:retractor
Nov 17, 2025
Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 vehicles. The seat belt retractors for the driver and front passenger seats may not be securely fastened.
Consequence & remedy
Consequence: An improperly secured seat belt retractor may not function properly in a crash, increasing the risk of injury.
Remedy: Dealers will inspect and secure the seat belt retractors, as necessary, free of charge. Owner notification letters were mailed December 30, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 287. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on November 19, 2025.
25V605000 · Suspension:critical Fasteners
Sep 11, 2025
Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 electric vehicles. Certain rear suspension alignment adjustment bolts may have been improperly tightened, which can cause a loss of vehicle stability control.
Consequence & remedy
Consequence: A loss of vehicle stability control increases the risk of a crash.
Remedy: Dealers will replace the adjustment bolts, align the wheels, and replace tires if necessary, free of charge. Owner notification letters were mailed October 10, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 284. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on September 13, 2025.
25V482000 · Electrical System:propulsion System:traction Battery
Jul 23, 2025
Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 vehicles. The high voltage battery system may contain an improperly tightened bus bar, which can cause a short-circuit.
Consequence & remedy
Consequence: An electrical short in the high voltage battery system increases the risk of a fire.
Remedy: Owners are advised to park their vehicles outside and away from structures until the recall remedy is complete. Dealers will inspect and repair the high voltage battery system, as necessary, free of charge. Owner notification letters were mailed August 25, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 280.
25V373000 · Exterior Lighting:headlights
Jun 3, 2025
Hyundai Motor America (Hyundai) is recalling certain 2025 Hyundai IONIQ 5 vehicles. The right-side headlight may have an incorrect headlight aim label, which can result in improperly aimed headlights. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Consequence & remedy
Consequence: Improperly aimed headlights can result in insufficient illumination of the road, decreasing the driver's visibility and increasing the risk of a crash.
Remedy: Hyundai will mail owners a corrected label with inspection and installation instructions. Owners may bring their vehicle to a dealer for the repair, free of charge. Owner notification letters were mailed July 15, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 279.
25V235000 · Service Brakes, Hydraulic:power Assist:electric:control Module:software
Apr 10, 2025
Hyundai Motor America (Hyundai) is recalling certain 2025 Hyundai IONIQ 5 "N" vehicles equipped with left-foot braking (LFB) and N e-shift features. The integrated electronic brake (IEB) and vehicle control unit (VCU) software may cause reduced braking performance when LFB is activated. Additionally, the vehicle may continue to accelerate after the pedal is released and the vehicle's N e-shift feature is engaged.
Consequence & remedy
Consequence: Reduced braking performance and unexpected, continued acceleration increase the risk of a crash.
Remedy: Owners are advised not to use the LFB or N e-Shift features until the remedy has been performed. The IEB and VCU software will be updated over-the-air (OTA) or by a dealer, free of charge. Owner notification letters were mailed April 25, 2025. This recall replaces NHTSA recall number 25V-065. Vehicles repaired under the previous recall will need to have the new remedy completed. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 277.
25V064000 · Air Bags:side/window; Electrical System:wiring
Feb 6, 2025
Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 EV vehicles. The rear floor wiring harness may contain an open circuit, which can result in the rear side air bag not deploying as intended.
Consequence & remedy
Consequence: A rear side air bag that does not deploy as intended can increase the risk of injury in a crash.
Remedy: Dealers will inspect and replace the rear floor wiring harness, as necessary, free of charge. Owner notification letters were mailed March 12, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 274.
Additional source detail variants (2)
Electrical System:wiring
Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 EV vehicles. The rear floor wiring harness may contain an open circuit, which can result in the rear side air bag not deploying as intended.
Consequence: A rear side air bag that does not deploy as intended can increase the risk of injury in a crash.
Remedy: Dealers will inspect and replace the rear floor wiring harness, as necessary, free of charge. Owner notification letters were mailed March 12, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 274.
Air Bags:side/window
Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 EV vehicles. The rear floor wiring harness may contain an open circuit, which can result in the rear side air bag not deploying as intended.
Consequence: A rear side air bag that does not deploy as intended can increase the risk of injury in a crash.
Remedy: Dealers will inspect and replace the rear floor wiring harness, as necessary, free of charge. Owner notification letters were mailed March 12, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 274.
25V065000 · Service Brakes, Hydraulic:power Assist:electric:control Module:software
Feb 6, 2025
Hyundai Motor America (Hyundai) is recalling certain 2025 Hyundai IONIQ 5 "N" vehicles equipped with a left-foot braking (LFB) feature. The integrated electronic brake (IEB) and vehicle control unit (VCU) software may cause reduced braking performance when LFB is activated.
Consequence & remedy
Consequence: Reduced braking performance can increase the distance required to stop the vehicle, increasing the risk of a crash.
Remedy: Owners who have not received the recall remedy are advised not to use the LFB feature until the updated remedy has been performed. Additionally, owners who have received the recall remedy are advised not to use the 'N' E-shift feature until the updated remedy has been performed. Dealers will update the IEB and VCU software, free of charge. Owner notification letters were mailed March 12, 2025. This recall is replaced by NHTSA recall number 25V-235. Vehicles already repaired under this recall will need to have the new remedy completed. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 275.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.