2025 Hyundai Ioniq 5 · symptom sheet
Hybrid or EV system warning, loss of power
- 26owner reports
- 4,368median miles
- 0involved a crash
Newest report Sep 19, 2026 · checked Oct 2, 2026
255 of the 297 complaints on this car are about the electrical system. 26 of those describe hybrid system.
Tick what matches of 26 reports
Hybrid system on other Ioniq 5 years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2024, 2026.
What this problem usually is
These reports come from hybrid, plug-in and electric vehicle owners whose car put up a system warning and lost power, sometimes dropping into a reduced-power mode on the road. Others describe a car that won't charge, a high-voltage battery or inverter replacement, or a problem that turned out to be the ordinary 12-volt battery all along.
What got replaced
Owners who name the part that was replaced mention the charger or port (15 reports), the traction battery (14 reports) and the 12V battery (11 reports).
Recalls and investigations
5 recalls on the electrical system cover the 2025 model year. A recall on the same system isn't always the same failure, so read the defect text.
The high voltage battery system may contain an improperly tightened bus bar, which can cause a short-circuit.
The high voltage battery system may contain an improperly tightened bus bar, which can cause a short-circuit.
The integrated electronic brake (IEB) and vehicle control unit (VCU) software may cause reduced braking performance when LFB is activated.
The rear floor wiring harness may contain an open circuit, which can result in the rear side air bag not deploying as intended.
The integrated electronic brake (IEB) and vehicle control unit (VCU) software may cause reduced braking performance when LFB is activated.
All 9 recalls on the 2025 Hyundai Ioniq 5, with the owner complaints on each recalled system
NHTSA investigations into the electrical system on the Ioniq 5
Electrical arcing and thermal events, potentially leading to fires, while utilizing enel x way usa, llc's juicebox residential charger.. Closed jun 5, 2025.
Loss of motive power. Closed apr 17, 2024, led to recall 24V-204.
Pedestrian alert sounds. Closed aug 7, 2023, led to recall 22V-063.
None of these investigations covers the 2025 model year.
When it happens
The middle half of failures fell between 3,026 and 9,902 miles, from the 9 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 4 service bulletins or notices for the 2025 Hyundai Ioniq 5 that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
Some IONIQ 5 (NEA EV) vehicles may set DTC P1E3000 while charging. Vehicle operation remains unaffected. This bulletin provides instructions to inspect, and if necessary, replace the affected rear inverter assembly.
Some 2025MY IONIQ 5 (NEA EV) vehicles may experience a charging condition where a voltage difference between battery cells prevents the High Voltage Battery from fully charging.
Certain 2025MY IONIQ 5 (NEA EV) vehicles are equipped with a Motor and Reduction Gear Motor-Gear Drive Unit (MGDU) differential gear assemblies that are missing a wave washer. This can cause the MGDU housing to make noise.
Certain 2025MY IONIQ 5 (NEA EV) vehicles may experience a charging issue where a voltage difference between battery cells prevents the High Voltage Battery from fully charging.
What owners wrote
“EV system not working on car with 8k miles on it. Dealer backed up and cannot offer rental car. This is a safety issue for me . This is a KNOWN issue for Hyundai and they are not recalling and their dealers are not equipped to resolve quickly.”
Filed Jul 20, 2026
“Failure of ICCU and high voltage fuse. Known issue in this vehicle. 2022-24 have been recalled. 2025 needs to be recalled. Warning on dash when it occurred, then 12V battery died. Undrivable. Towed in and repaired under warranty by dealer. But apparently it can happen again because Hyundai doesnât know how to permanently address the problem.”
Filed Jul 10, 2026
“Main battery failure, can not charge, can not drive car. Warning light(s) on dashboard. High voltage battery needs to be replaced.”
Filed Feb 17, 2026
“Vehicle experienced a dashboard alert, "Check electric vehicle system." The car produced an OBD code: P1AD3(00). Upon taking it to the dealer, they determined that the EV required a new high-voltage battery.”
Filed Feb 13, 2026
Should you keep driving it?
This page can't tell you that. 0 of 26 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Hybrid warning on the dash? Hybrid and EV battery complaints explained
Other problems on this car
- Battery dies or the car will not start 91 reports
- Engine stalls or loses power while driving 44 reports
- Infotainment, screen or backup camera fails 39 reports