2025 Ioniq 5s May Need New HV Batteries
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Uk is affected although this is limited to certain batches
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HV Battery Failure Details
Affected Vehicles: The potential for HV battery issues seems to be limited to certain specific batches, with a technical service bulletin (TSB) being issued for some 2025 models. It is not a widespread issue affecting all Ioniq 5s in the UK.
Yes, some 2025 Hyundai Ioniq 5 models, including those sold in the UK, might face high voltage (HV) battery issues, often flagged by charging problems (P1A700 code) due to cell voltage imbalances from potential manufacturing defects, requiring full battery pack replacement, though parts availability for repairs, especially in Europe, has been a significant challenge. Other issues include a major US recall for loose battery bolts causing fire risk, and general owner complaints about failing 12V batteries linked to the HV system, leading to long waits for parts and service.