Hyundai Tucson 2025–2026 — warranty extension
Bulletin 26-01-041H TSB · NHTSA communication 11032590 · issued May 5, 2026
Warranty extension
communication type
Electrical System
component
2025–2026
model years
2
vehicle entries
Official 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Certain Tucson (NX4A) vehicles may experience Over-the-Air (OTA) update failures due to outdated Central Communication Unit (CCU) software.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.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.