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October 21, 2026 Service bulletin

Vibration noise coming from the battery system assembly (BSA) lower cover

Hyundai technical service bulletin 26-EV-008H for 2022-2024 Hyundai Ioniq 5 and 2023-2025 Hyundai Ioniq 6.

Bulletin number
26-EV-008H
Component
Electrical system
Summary
Some IONIQ 5 (NE EV) and IONIQ 6 (CE EV) vehicles may exhibit a vibration noise coming from the battery system assembly (BSA) lower cover. This may be caused by the lower cover becoming loose around the center mounting bolts. Follow the procedure in this bulletin to replace the mounting bolts and install cup washers with each bolt to hold the cover in place and resolve the noise on affected vehicles.

Owners of these vehicles have filed 835 complaints in the electrical category.

Vehicles covered

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