Certain Tucson Hybrid (NX4 HEV) and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may experience a battery...
Hyundai technical service bulletin 25-01-020H TSB for 2025 Hyundai Tucson Hybrid and 2025 Hyundai Tucson Plug-In Hybrid.
- Bulletin number
- 25-01-020H TSB (TCTA)
- Component
- Electrical system
- Summary
- Certain Tucson Hybrid (NX4 HEV) and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may experience a battery discharge due to a logic error within the Central Communication Unit (CCU). This bulletin provides instructions to update both subsystems (MCU/AP) related to the CCU to improve the logic of the CCU.
Owners of these vehicles have filed 58 complaints in the electrical category.
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