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Service bulletin 25-BE-020H TSB

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11023692
Published by NHTSA2025-10-03
Manufacturer's number25-BE-020H TSB
Manufacturer's date2025-09-30
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

This bulletin provides information related to the changes introduced in the 2025 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system as described in this TSB.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
HYUNDAI ELANTRA2021, 2022, 2023, 2024, 2025
HYUNDAI ELANTRA HYBRID2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI ELANTRA N2022, 2023, 2024
HYUNDAI IONIQ 52022, 2023, 2024
HYUNDAI IONIQ 5 N2025
HYUNDAI IONIQ 62023, 2024, 2025
HYUNDAI IONIQ ELECTRIC2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI IONIQ HYBRID2020, 2021, 2022 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI IONIQ PLUG-IN HYBRID2020, 2021, 2022 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI KONA2022, 2023, 2024, 2025
HYUNDAI KONA ELECTRIC2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI KONA N2022, 2023
HYUNDAI PALISADE2020, 2021, 2022, 2023, 2024, 2025
HYUNDAI SANTA CRUZ2022, 2023, 2024, 2025
HYUNDAI SANTA FE2021, 2022, 2023, 2024, 2025
HYUNDAI SANTA FE HYBRID2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI SANTA FE PLUG-IN HYBRID2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI SONATA2020, 2021, 2022, 2023, 2024, 2025
HYUNDAI SONATA HYBRID2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI TUCSON2022, 2023, 2024, 2025
HYUNDAI TUCSON HYBRID2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI TUCSON PLUG-IN HYBRID2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
HYUNDAI VELOSTER N2021, 2022
HYUNDAI VENUE2021
HYUNDAI VENUE2023, 2024, 2025, 2026

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
26V4320002026-07-02. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
26V4000002026-06-23. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
26V3080002026-05-14. ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE (HPCU)
26V0470002026-01-26. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
20255292025-10-02. Electrical
25V6590002025-10-02. ELECTRICAL SYSTEM:STARTER ASSEMBLY
25V6060002025-09-11. ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:PORT
20247082024-11-20. Electrical
24V8770002024-11-20. ELECTRICAL SYSTEM:WIRING
24V8680002024-11-18. ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:MODULE:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
26-BE-001H-2 DCS2026-10-06. Warranty extension. Some vehicles may have an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. Hyundai is extending the warranty coverage for the horn replacement under this condition to 10 years or 120,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. If a horn needs to be replaced, follow the instructions within this Technical Service Bulletin (TSB)26-BE-001H-2 to install the latest design. Please note that any vehicles under 10 years/120,000 miles are covered by this TSB, even if vehicle is with original warranty of 5 years/60,000 miles.
26-BE-001H-2 TSB2026-10-06. Warranty extension. Some vehicles may have an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. Hyundai is extending the warranty coverage for the horn replacement under this condition to 10 years or 120,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. If a horn needs to be replaced, follow the instructions within this TSB to install the latest design. Please note that any vehicles under 10 years / 120,000 miles are covered by this TSB, even if vehicle is within original warranty of 5 years / 60,000 miles.
26-BE-021H2026-09-22. Service bulletin. Some Venue (QX) vehicles may have an inoperative horn due to insufficient internal soldering of the horn assembly. This bulletin provides instructions to replace the horn assembly.
9C5 OL2026-09-11. Service campaign. Hyundai has determined that certain Kona Electric and Ioniq Electric vehicles are eligible for a BMS software update. This update to the BMS software improves the system’s diagnostic capability.
26-BE-025H TSB2026-09-09. Service bulletin. Some Tucson (NX4, NX4A, NX4M), Tucson Hybrid (NX4 HEV), and Tucson Plug-In Hybrid (NX4 PHEV) vehicles may exhibit a 12-volt battery drain due to the passive entry feature of the Digital Key 2 premium causing repeated wakeup of the vehicle. This bulletin provides instructions to perform software updates for the Ultra-Wide Band (UWB) and Body Domain Control (BDC) modules.
26-01-065H DCS2026-09-02. Service campaign. Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management System (BMS) software update. This update to the BMS software improves the system's diagnostic capability. Follow Technical Service Bulletin (TSB) 26-01-065H to complete the BMS software update.
26-01-065H DN2026-09-02. Service campaign. Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management System (BMS) software update. This update to the BMS software improves the system’s diagnostic capability.
26-BE-026H TSB2026-09-02. Service bulletin. Some Santa Fe (MX5A) and Santa Fe Hybrid (MX5A HEV) vehicles may exhibit a 12-volt battery drain due to the passive entry feature of the Digital Key 2 premium causing repeated wakeup of the vehicle. This bulletin provides instructions to perform software updates for the Ultra-Wide Band (UWB) and Body Domain Control (BDC) modules.
26-01-065H TSB2026-08-21. Service campaign. Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management System (BMS) software update. This update to the BMS software improves the system’s diagnostic capability. Follow this bulletin to complete the BMS software update.
LA29-LA30 DCS2026-07-21. Warranty extension. Certain 2024-2026MY Sonata (DN8) and 2024-2026MY Sonata Hybrid (DN8 HEV) vehicles may exhibit intermittent battery discharge condition due to the air conditioning controller not fully powering down after the vehicle is turned off and parked. Technical Service Bulletins (TSB) 26-01-051H & 26-01-052H provide the procedure to update the ATCU (Air Temperature Control Unit) software; the revised logic improves controller shutdown to prevent battery drain and corrects a condition where the HVAC control display may appear blank when climate remote start is activated via Bluelink. Over-the-Air (OTA): This update can also be conducted via OTA. Customers can complete on their own if they have an active subscription to Hyundai Bluelink. A visit to the dealership is not required. Deployment of the OTA to Bluelink customers is planned to start the week of 07/13/26.