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Service bulletins for the 2025 Hyundai Tucson

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.

58 on file from NHTSA, as of 2026-10-19.

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Only bulletins with type: Service campaign are shown. Show all

Bulletins, newest first
26-01-035H TSB2026-04-15. Service campaign. ELECTRICAL SYSTEM. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink functions. This may be due to an occasional disconnection on Verizon’s communication network. Follow the procedures in this bulletin to verify Bluelink Data Communication Unit (DCU) network connection and if needed, reset the DCU in Dealer Mode to resolve the connection.
25-01-083H DCS 01222026-01-27. Service campaign. ENGINE. Certain Tucson Hybrid (NX4 HEV) and Tucson Plug-in Hybrid (NX4 PHEV) vehicles equipped with the 1.6T-GDI Gamma II engine may set DTC P04DB00 (Crankcase Ventilation System Disconnected). Technical Service Bulletin (TSB) 25-01-083H provides instructions to perform a software update on the Engine Control Module (ECM) to resolve this condition.
25-01-068H-1 DCS2025-12-02. Service campaign. ENGINE. Certain Tucson Hybrid (NX4 HEV) and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may exhibit a condition where the Oil Pump Unit (OPU) prevents the Ready Lamp from turning on. Some vehicles may also display DTC U100787 (malfunction on CAN communication). Technical Service Bulletin (TSB) 25-01-068H-1 provides instructions to update the Powertrain Control Unit (PCU) software.
25-01-061H-1 DCS2025-12-02. Service campaign. ELECTRICAL SYSTEM. not being implemented. The DCU module may shut down telematics services after one year. TSB 25-01-061H-1 provides instructions to perform a software update for the DCU module.
25-01-061H-1 TSB2025-12-02. Service campaign. ELECTRICAL SYSTEM. Certain Tucson (NX4A) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
25-01-068H-12025-12-02. Service campaign. ENGINE. Certain Tucson Hybrid (NX4 HEV) and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may exhibit a condition where the Oil Pump Unit (OPU) prevents the Ready Lamp from turning on. Some vehicles may also display DTC U100787 (malfunction on CAN communication). This bulletin provides instructions to perform a software update for the Powertrain Control Unit (PCU).
25-01-083H DCS2025-11-20. Service campaign. ENGINE. Certain Tucson Hybrid (NX4 HEV) and Tucson Plug-in Hybrid (NX4 PHEV) vehicles equipped with the 1.6T-GDI Gamma II engine may set DTC P04DB00 (Crankcase Ventilation System Disconnected). Technical Service Bulletin (TSB) 25-01-083H provides instructions to perform a software update on the Engine Control Module (ECM) to resolve this condition.
25-01-083H TSB2025-11-20. Service campaign. ENGINE. Certain Tucson Hybrid (NX4 HEV) and Tucson Plug-in Hybrid (NX4 PHEV) vehicles equipped with the 1.6T-GDI Gamma II engine may set DTC P04DB00 (Crankcase Ventilation System Disconnected). This bulletin provides instructions to perform a software update on the Engine Control Module (ECM) to resolve this condition.
TDF-TDFA-TDFB DCS2025-11-18. Service campaign. ELECTRICAL SYSTEM. Certain Tucson Hybrid (NX4 HEV), Tucson Plug-in Hybrid (NX4 PHEV), Tucson (NX4), and Tucson (NX4M) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. Technical Service Bulletins (TSBs) 25-01-057H-1, 25-01-059H-1 & 25-01-060H-1 provide instructions to perform a software update for the DCU module. Over-the-Air (OTA): This update can also be conducted via OTA. The customer can complete on his/her own if he/she has an active subscription to Hyundai Bluelink. A visit to the dealership is not required.
25-01-060H-1 TSB2025-11-18. Service campaign. ELECTRICAL SYSTEM. Certain Tucson (NX4M) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
25-01-059H-1 TSB2025-11-18. Service campaign. ELECTRICAL SYSTEM. Certain Tucson (NX4) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
25-01-057H-1 TSB2025-11-18. Service campaign. ELECTRICAL SYSTEM. Certain Tucson Hybrid (NX4 HEV) and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
25-01-060H DCS2025-11-04. Service campaign. ELECTRICAL SYSTEM. Hyundai Motor America is currently investigating an ongoing issue with software GDS event #1297. The matter is being investigated to ensure the software can be directed to the impacted VIN population. We will provide an update once the issue is resolved and the suspension is lifted.
TDF/TDFA/TDFC DCS2025-11-03. Service campaign. ELECTRICAL SYSTEM. Hyundai Motor America is currently investigating an ongoing issue with software GDS event #1297. The matter is being investigated to ensure the software can be directed to the impacted VIN population. We will provide an update once the issue is resolved and the suspension is lifted.
25-01-059H tsb2025-11-03. Service campaign. ELECTRICAL SYSTEM. Certain Tucson (NX4) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
25-01-057H TSB2025-11-03. Service campaign. ELECTRICAL SYSTEM. Certain Tucson Hybrid (NX4 HEV) and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
25-01-060H DCS2025-10-14. Service campaign. ELECTRICAL SYSTEM. Technical Service Bulletin (TSB) 25-01-060H for the Data Communication Network (DCU) software update related to GDS Event # 1297 is available TODAY effective 11:00 AM PST and the affected vehicle population (certain 2025 model year Hyundai Tucsons) has been reactivated.
25-01-060H TSB2025-10-14. Service campaign. ELECTRICAL SYSTEM. Certain Tucson (NX4M) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
25-01-068H TSB2025-10-03. Service campaign. POWER TRAIN. Certain Tucson Hybrid (NX4 HEV) and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may exhibit a condition where the Oil Pump Unit (OPU) prevents the Ready Lamp from turning on. Some vehicles may also display DTC U100787 (malfunction on CAN communication). This bulletin provides instructions to update the Powertrain Control Unit (PCU) software.
TDF /TDFA/TDFB/TDFC2025-09-15. Service campaign. ELECTRICAL SYSTEM. Hyundai Motor America is currently investigating an ongoing auto mode update concern with software GDS event #1297. Some vehicles are not able to complete the update after multiple attempts and some are completing the update after multiple initial failed attempts. Technicians may experience consistent Data Communication Unit (DCU) software upgrade failures when attempting to update to the latest version. The matter is being investigated to address the update failures and recover any failed modules. We will provide an update once the issue is resolved and the suspension is lifted.
25-01-061H TSB2025-09-13. Service campaign. ELECTRICAL SYSTEM. Certain Tucson (NX4A) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
25-01-059H TSB2025-09-13. Service campaign. ELECTRICAL SYSTEM. Certain Tucson (NX4) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
HCE25-92-E770 TSB2025-09-11. Service campaign. ELECTRICAL SYSTEM. This bulletin provides information related to the DCU (DATA CONNECTIVITY UNIT) software enhancement (OTA) for NX4 OB PE/NX4 PE/NX4 PE HEV/NX4 PHEV/NX4a PE/NX4m PE vehicles in Puerto Rico.
25-01-060H TSB2025-09-09. Service campaign. ELECTRICAL SYSTEM. Certain Tucson (NX4M) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
25-01-057H TSB2025-09-03. Service campaign. ELECTRICAL SYSTEM. Certain Tucson Hybrid (NX4 HEV) and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.