# 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.

- Type: Service bulletin
- NHTSA id: 11023692
- Published by NHTSA: 2025\-10\-03
- Manufacturer's number: 25\-BE\-020H TSB
- Manufacturer's date: 2025\-09\-30
- NHTSA component: ELECTRICAL 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

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11023692-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11023692-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2021 to 2025 HYUNDAI ELANTRA
- 2021 to 2025 HYUNDAI ELANTRA HYBRID
- 2022 to 2024 HYUNDAI ELANTRA N
- 2022 to 2024 HYUNDAI IONIQ 5
- 2025 HYUNDAI IONIQ 5 N
- 2023 to 2025 HYUNDAI IONIQ 6
- 2020 to 2021 HYUNDAI IONIQ ELECTRIC
- 2020 to 2022 HYUNDAI IONIQ HYBRID
- 2020 to 2022 HYUNDAI IONIQ PLUG\-IN HYBRID
- 2022 to 2025 HYUNDAI KONA
- 2020 to 2023 HYUNDAI KONA ELECTRIC
- 2022 to 2023 HYUNDAI KONA N
- 2020 to 2025 HYUNDAI PALISADE
- 2022 to 2025 HYUNDAI SANTA CRUZ
- 2021 to 2025 HYUNDAI SANTA FE
- 2021 to 2025 HYUNDAI SANTA FE HYBRID
- 2022 to 2023 HYUNDAI SANTA FE PLUG\-IN HYBRID
- 2020 to 2025 HYUNDAI SONATA
- 2020 to 2025 HYUNDAI SONATA HYBRID
- 2022 to 2025 HYUNDAI TUCSON
- 2022 to 2025 HYUNDAI TUCSON HYBRID
- 2022 to 2025 HYUNDAI TUCSON PLUG\-IN HYBRID
- 2021 to 2022 HYUNDAI VELOSTER N
- 2021 HYUNDAI VENUE
- 2023 to 2026 HYUNDAI VENUE

## Recalls for the same vehicles and component

- [26V432000](/recalls/nhtsa/26V432000.md), 2026-07-02: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [26V400000](/recalls/nhtsa/26V400000.md), 2026-06-23: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [26V308000](/recalls/nhtsa/26V308000.md), 2026-05-14: ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE \(HPCU\)
- [26V047000](/recalls/nhtsa/26V047000.md), 2026-01-26: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [2025529](/recalls/tc/2025529.md), 2025-10-02: Electrical
- [25V659000](/recalls/nhtsa/25V659000.md), 2025-10-02: ELECTRICAL SYSTEM:STARTER ASSEMBLY
- [25V606000](/recalls/nhtsa/25V606000.md), 2025-09-11: ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:PORT
- [2024708](/recalls/tc/2024708.md), 2024-11-20: Electrical
- [24V877000](/recalls/nhtsa/24V877000.md), 2024-11-20: ELECTRICAL SYSTEM:WIRING
- [24V868000](/recalls/nhtsa/24V868000.md), 2024-11-18: ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:MODULE:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY

## Other bulletins for the same vehicles and component

- [26\-BE\-001H\-2 DCS](/bulletins/11038179.md), 2026-10-06, Warranty extension: ELECTRICAL SYSTEM. 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 TSB](/bulletins/11038173.md), 2026-10-06, Warranty extension: ELECTRICAL SYSTEM. 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\-021H](/bulletins/11037433.md), 2026-09-22, Service bulletin: ELECTRICAL SYSTEM. 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 OL](/bulletins/11037293.md), 2026-09-11, Service campaign: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. 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 TSB](/bulletins/11037232.md), 2026-09-09, Service bulletin: ELECTRICAL SYSTEM. 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 DCS](/bulletins/11036686.md), 2026-09-02, Service campaign: FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. 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 DN](/bulletins/11036685.md), 2026-09-02, Service campaign: FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. 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 TSB](/bulletins/11036624.md), 2026-09-02, Service bulletin: ELECTRICAL SYSTEM. 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 TSB](/bulletins/11036311.md), 2026-08-21, Service campaign: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. 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 DCS](/bulletins/11035142.md), 2026-07-21, Warranty extension: ELECTRICAL SYSTEM. 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.

JSON: [/v1/bulletins/11023692](/v1/bulletins/11023692)

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