2025 Hyundai Ioniq 5
Common Problems
Ranked from 166 federal NHTSA complaints and 3 recalls. Every problem links to the complaint IDs behind it.
15 Common Problems
Ordered by how often owners reported each one to NHTSA. The bar shows how common a problem is relative to the most-reported on this vehicle. Expand any problem to see the federal complaint IDs.
- 1
Integrating Charging Control Unit (ICCU) Failure
102complaintsHigh severityElectricalThe ICCU failed, causing the vehicle to enter limp mode and lose power, potentially leading to a complete shutdown of the vehicle.
$250–$700est. egr valve replacement · 1–3 hrs laborGet local quotesRelated recalls: 25V064000, 25V482000, 26V068000
- 2
12V Battery Drain Due to ICCU Failure
52complaintsMedium severityElectricalThe 12V battery drains due to ICCU failure, causing the vehicle to lose power and become non-functional.
$150–$700est. parasitic-drain diagnosis + battery · 1–4 hrs laborGet local quotesRelated recalls: 25V064000, 25V482000, 26V068000
- 3
Vehicle Suddenly Becomes Non-Operational During Driving
27complaintsHigh severityElectricalThe vehicle suddenly became non-operational during driving, often with a warning message to stop and check the power supply.
Related recalls: 25V064000, 25V482000, 26V068000
- 4
High Voltage System Issues
25complaintsHigh severityElectricalIssues with the high voltage system, including ICCU and high voltage fuse failures, caused the vehicle to become undriveable and required immediate repair.
Related recalls: 25V064000, 25V482000, 26V068000
- 5
Warning Lights and Reduced Power During Cold Weather
15complaintsMedium severityElectricalIn cold weather, warning lights appeared and the vehicle experienced reduced power, often leading to a complete loss of power.
$100–$250est. professional diagnosis · 1–2 hrs laborGet local quotesRelated recalls: 25V064000, 25V482000, 26V068000
- 6
Electrical System Warnings During Normal Operation
11complaintsLow severityElectricalThe vehicle displays unexpected electrical system warnings during normal operation, indicating potential underlying issues.
Related recalls: 25V064000, 25V482000, 26V068000
- 7
Forward Attention Warning System Malfunction
11complaintsMedium severityElectricalThe Forward Attention Warning system frequently triggers false alerts, causing distraction and disabling driving assistance features.
Related recalls: 25V064000, 25V482000, 26V068000
- 8
High Voltage Battery Malfunction
8complaintsHigh severityFuel systemThe high voltage battery malfunctions, leading to loss of power and potentially disabling the vehicle.
- 9
Charging Issues
4complaintsMedium severityElectricalThe vehicle encounters charging malfunctions, including sudden jumps in battery charge levels and inability to charge via standard chargers.
Related recalls: 25V064000, 25V482000, 26V068000
- 10
Driver Assistance System False Alarms
4complaintsMedium severityElectricalThe Driver Attention System frequently misidentifies the driver's attention, leading to false alarms and disabling of driving assistance features.
Related recalls: 25V064000, 25V482000, 26V068000
- 11
Powertrain Shuddering and Pulsation
4complaintsMedium severityTransmissionThe vehicle experiences shuddering and pulsation at highway speeds, affecting stability and drivability.
- 12
Engine Surges and Stalls
3complaintsMedium severityEngineThe engine experiences surges and stalls at highway speeds, leading to inconsistent performance and potential loss of control.
$150–$1,200est. stalling / shutdown diagnosis + repair · 1–5 hrs laborGet local quotes - 13
Lane Departure Assistance System False Alarms
3complaintsMedium severityOtherThe lane departure assistance system generates false alarms, especially when wearing sunglasses, diverting the driver's attention.
- 14
False Lane Departure and Collision Warnings
2complaintsMedium severityElectricalThe lane departure and forward collision avoidance systems frequently give false warnings, potentially causing driver distraction and confusion.
Related recalls: 25V064000, 25V482000, 26V068000
- 15
Unintended Acceleration
2complaintsHigh severityElectricalThe vehicle experienced unintended acceleration, often triggered by pressing the brake pedal, posing a significant safety risk.
Related recalls: 25V064000, 25V482000, 26V068000
Other years & sources
Data source: U.S. National Highway Traffic Safety Administration (NHTSA) owner complaints and recalls. Problems are clustered and ranked from the complaint record; occurrence counts reflect corroborating complaints, not total incidence. Vehicle image is illustrative. Repair-cost figures are typical U.S. independent-shop ranges (parts + labor) for the class of repair shown — actual quotes vary by region, engine, and diagnosis; always confirm with a local shop.