HYUNDAI

25-EV-002H TSB

2025-04-12 · NHTSA 11016997

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

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. The two DTCs associated with this issue are: • P1AA700 – Hybrid/EV Battery Abnormal Performance: Cell Voltage Deviation • P1AD300 – Hybrid/EV Battery Abnormal Performance: MISD. If either of the DTCs listed above are identified in "Active" status, follow the procedure outlined in this TSB to replace the Battery System Assembly (BSA).

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.