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October 27, 2026 Service bulletin

This bulletin provides information related to the navigation and head unit software changes introduced in...

Hyundai technical service bulletin 26-GI-003H for 2020-2026 Hyundai Sonata, 2021-2025 Hyundai Elantra and 2021-2026 Hyundai Santa Fe and others.

Bulletin number
26-GI-003H
Component
Electrical system
Summary
This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 2nd Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2026 2nd Navigation Map and Software Update Key Improvements and Additional Improvements tables in this TSB for a list of specific changes. The software can be downloaded via Navigation Updater (NAU) and updated by USB.

Owners of these vehicles have filed 1,489 complaints in the electrical category.

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