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May 5, 2026 Warranty extension

Certain Tucson (NX4A) vehicles may experience Over-the-Air (OTA) update failures due to outdated Central...

Hyundai technical service bulletin 26-01-041H TSB for 2025-2026 Hyundai Tucson.

Bulletin number
26-01-041H TSB (LA21)
Component
Electrical system
Summary
Certain Tucson (NX4A) vehicles may experience Over-the-Air (OTA) update failures due to outdated Central Communication Unit (CCU) software. This bulletin provides instructions to perform a software update for the CCU.

Owners of these vehicles have filed 78 complaints in the electrical category.

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