Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
26-BE-026H TSB
Service Bulletin/Repair Instructions
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-BD-008H TSB
Service Bulletin/Repair Instructions
Some Santa Fe (MX5A) and Santa Fe Hybrid (MX5A HEV) vehicles equipped with natural leather or Nappa leather seating surfaces may exhibit wrinkling on the first or second row seat cushions or seat backs, or tearing along the perforation holes due to the stiffness of the leather material. This bulletin provides instructions to replace the wrinkled or torn seat covers.
26-BE-015H TSB
Service Bulletin/Repair Instructions
Some Santa Fe (MX5A) and Santa Fe Hybrid (MX5A HEV) vehicles equipped with power seats with or without Integrated Memory System (IMS) may produce buzz, squeak, rattle noises when the driver’s front seat is adjusted forward or backwards due to friction within the motor’s tube. This bulletin provides instructions to remove the motor tube.
26-GI-002H TSB
Service Bulletin/Repair Instructions
This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2026 1st Navigation Map and Software Update Key Improvements and Additional Improvements tables in this TSB for a list of specific changes. The software can be downloaded via Navigation Updater (NAU) and updated by USB.
DTN DCS
Other
The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN), that have been identified in U.S. vehicles following prior crashes, theft, or non‑certified airbag replacements. These inflators are not approved for use, may rupture during deployment, and have caused serious injuries and fatalities. Please see attached announcement, provided by NHTSA, for more details.
DTN DL
Other
The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous driver’s-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN). These inflators were not supplied, approved, or authorized by the vehicle manufacturers and have primarily been found in vehicles that previously experienced a crash and underwent airbag replacement using non-genuine parts. These dangerous inflators have ruptured during deployment, posing a serious risk of injury or death due to metal fragments entering the vehicle cabin. To date, Hyundai is aware of three people who have died while driving a Hyundai vehicle with one of these substandard replacement airbag inflators that deployed in what likely would have been a survivable crash. NHTSA has issued a public advisory urging vehicle owners and service professionals to have vehicles inspected if there is reason to believe that a non-genuine replacement airbag may have been installed. Vehicles with salvage or rebuilt titles, prior airbag deployments, or unknown repair histories may present a higher risk. NHTSA strongly cautions against self-inspection by vehicle owners and recommends inspection by trained technicians.
26-01-035H TSB
Service Campaign
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.
26-BD-001H TSB
Service Bulletin/Repair Instructions
Some Santa Fe (MX5A) and Santa Fe Hybrid (MX5A HEV) vehicles equipped with 2nd row captain’s chairs have an armrest cap that may detach. This bulletin provides the procedure to replace the armrest cap on the 2nd row captain’s chairs with a revised part.
26-01-015H-1 TSB
Warranty Program/Extension
Certain Santa Fe (MX5A) vehicles may experience a discharged battery condition due to the Fingerprint Module (FPM) not entering 'SLEEP' mode when the ignition is turned off. This bulletin provides instructions to perform a software update with revised logic for the FPM.
26-AT-001H TSB
Service Bulletin/Repair Instructions
Some Santa Cruz (NXT), Santa Fe (TMA, MX5A), and Sonata (DN8A) models may require replacement of the 8-speed wet dual clutch transmission (8WDCT) when the vehicle sets one of the high pressure electric oil pump (HP EOP) DTCs listed below. This bulletin provides instructions to replace the 8WDCT.
26-01-015H TSB
Service Campaign
Certain Santa Fe (MX5A) vehicles may experience a discharged battery condition due to the Fingerprint Module (FPM) not entering 'SLEEP' mode when the ignition is turned off. This bulletin provides instructions to perform a software update with revised logic for the FPM.
LA6 & LA6A DCS
Service Campaign
Certain Santa Fe (MX5A) and Santa Fe Hybrid (MX5A HEV) vehicles may experience a discharged battery condition due to the Fingerprint Module (FPM) not entering 'SLEEP' mode when the ignition is turned off. Technical Service Bulletins (TSBs) 26-01-015H and 26-01-016H provide instructions to perform a software update with revised logic for the FPM. *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. Deployment of the OTA to Bluelink customers is planned starting the week of 02/16/2026.
LA1/LA1A DCS
Service Campaign
Certain Santa Fe (MX5A) and Santa Fe Hybrid (MX5A HEV) vehicles may experience battery drain and inoperative heated seat capacitive touch buttons due to incorrect ECU logic for the Seat Heater Unit – Front (SHU_FRT). Technical Service Bulletins (TSBs) 25-01-025H-1 and 25-01-028H-1 provides instructions to perform a software update for the Seat Heater Unit – Front to correct the logic. 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. Deployment of the OTA to Bluelink customers is planned to start the week of 11/11/25.
25-01-025H-1 TSB
Service Campaign
Certain Santa Fe (MX5A) vehicles may experience battery drain and inoperative heated seat capacitive touch buttons due to incorrect ECU logic for the Seat Heater Unit – Front (SHU_FRT). This bulletin provides instructions to perform a software update for the Seat Heater Unit – Front to correct the logic.
25-BD-012H TSB
Service Bulletin/Repair Instructions
This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes or during normal driving operation.
9C3 OL
Service Campaign
Hyundai has become aware that some vehicles equipped with the 2.5 Turbo-GDI Theta III engine may exhibit coolant seepage on the back side (exhaust side) of the engine caused by a crack in the cylinder block.
25-01-072H-1 DCS
Service Campaign
This is a follow-up to a previous launch of Service Campaign TEJ. Updates include the following: - A new GDS Event #1328 for certain ECU part numbers ending in '820'/'830' - Related ROM ID & Manual Mode Password Information.
25-01-072H-1 TSB
Service Campaign
Certain Santa Fe (MX5A) vehicles equipped with 8-speed dual clutch transmissions (8DCT) may set one of the high pressure electric oil pump (HP EOP) DTCs listed below. This bulletin provides the service procedure to update the Transmission Control Unit (TCU) with improved logic to address the DTCs above and enhance operation of the 8DCT.
25-01-052H DCS
Service Campaign
Certain 2025MY Santa Cruz (NXT) and Santa Fe (MX5A) vehicles equipped with the 2.5T-GDI Theta III engine may exhibit coolant residue on the back side (exhaust side) of the engine caused by a crack in the cylinder block. Follow the procedure outlined in Technical Service Bulletin (TSB) 25-01-052H to replace the engine assembly on affected vehicles.
25-01-052H DN
Service Campaign
Certain 2025MY Santa Cruz (NXT) and Santa Fe (MX5A) vehicles equipped with the 2.5T-GDI Theta III engine may exhibit coolant residue on the back side (exhaust side) of the engine caused by a crack in the cylinder block. The California Air Resources Board has determined that these vehicles may be releasing air pollutants which exceed Federal and California standards.
25-01-052H TSB
Service Campaign
Certain 2025MY Santa Cruz (NXT) and Santa Fe (MX5A) vehicles equipped with the 2.5T-GDI Theta III engine may exhibit coolant residue on the back side (exhaust side) of the engine caused by a crack in the cylinder block. Follow the procedure outlined in this bulletin to replace the engine sub-assembly on affected vehicles.
25-01-072H DCS
Service Campaign
Hyundai Motor America is currently investigating an ongoing concern with software GDS event #1306 for certain Hyundai Santa Fe (MX5A) vehicles. The software update is not appearing for some impacted vehicles. In the interim, Technical Service Bulletin (TSB) 25-01-072H will be removed from Hyundai Tech Info. We will provide an update once the issue is resolved and the suspension is lifted. If dealer has already performed the update successfully on an impacted vehicle prior to the suspension, the corresponding campaign claim can be submitted.
25-01-071H/072H DCS
Service Campaign
Certain Santa Fe (MX5A) and Santa Cruz (NXT) vehicles equipped with 8-speed dual clutch transmissions (8DCT) may set one of the high pressure electric oil pump (HP EOP) DTCs listed below. Technical Service Bulletins (TSB) 25-01-071H (for Santa Fe vehicles) and 25-01-072H (for Santa Cruz vehicles) provide the service procedure to update the Transmission Control Unit (TCU) with improved logic to address these DTCs and enhance operation of the 8DCT.
25-01-072H TSB
Service Campaign
Certain Santa Fe (MX5A) vehicles equipped with 8-speed dual clutch transmissions (8DCT) may set one of the high pressure electric oil pump (HP EOP) DTCs listed below. This bulletin provides the service procedure to update the Transmission Control Unit (TCU) with improved logic to address the DTCs above and enhance operation of the 8DCT.
25-01-058H OL
Service Campaign
Hyundai has become aware that some vehicles may exhibit a “pop,” “tick,” or “creak” noise from the right front subframe area while driving. The noise may be caused by a missing weld on the right front subframe mounting stud.
25-BE-020H TSB
Service Bulletin/Repair Instructions
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.
25-01-058H DN
Service Campaign
Certain Santa Fe (MX5A) and Santa Fe Hybrid (MX5A HEV) vehicles may produce a “pop”, “tick”, or “creak” noise from a missing weld on the mounting stud of the right front subframe while driving. The vehicle’s structural integrity is maintained even with a missing weld; however, drivers may report an abnormal noise coming from the affected area during certain driving scenarios.
25-01-058H TSB
Service Campaign
Certain Santa Fe (MX5A) and Santa Fe Hybrid (MX5A HEV) vehicles may produce a “pop”, “tick”, or “creak” noise from a missing weld on the mounting stud of the right front subframe while driving. The vehicle’s structural integrity is maintained even with a missing weld; however, drivers may report an abnormal noise coming from the affected area during certain driving scenarios. This bulletin describes the procedure to inspect, and if necessary, repair the missing weld on the mounting stud to eliminate the noise.
25-BE-002H TSB
Service Bulletin/Repair Instructions
This bulletin provides information related to the changes introduced in the 2024 2nd Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2024 2nd Navigation Map and Software Update Improvements section in this TSB for a list of specific changes. The software can be downloaded via Navigation Updater (NAU) and updated by USB. The NAU website is https://update.hyundai.com/US/EN/navigationUpdate. For certain models equipped with a relevant Bluelink package, the software may be downloaded and applied via OTA update.
25-01-018H-1 TSB
Service Campaign
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-BE-008H TSB
Service Bulletin/Repair Instructions
Certain vehicles (See Applicable Vehicles List below) equipped with the 12-inch instrument cluster display and separate Instrument Cluster Module require software verification PRIOR to odometer mileage writing. If the Cluster Module does not have the latest software, the incorrect mileage may be written to the new module. This bulletin provides information to confirm the Instrument Cluster Module is equipped with the latest software version prior to using the GDS tablet to write the odometer mileage.
25-01-025H TSB
Service Campaign
Certain Santa Fe (MX5A) vehicles may experience battery drain due to incorrect ECU logic for the Seat Heater Unit – Front (SHU_FRT). This bulletin provides instructions to perform the software update for the Seat Heater Unit – Front to correct the logic.
25-01-018H TSB
Service Campaign
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-BE-003H DN
Service Bulletin/Repair Instructions
Hyundai Motor America has noted that several vehicles were impacted by a telecommunications outage that occurred on Sunday, February 9th , resulting in the potential loss of connectivity or interruptions when attempting to use Bluelink functions. Voice Recognition, Sports Media, and Weather will not be available. Dealer stock and retailed vehicles are both affected. If a customer calls in and their vehicle is experiencing issues related to Bluelink, please have them come into the dealership to assist with resetting the Bluelink Data Communication Unit (DCU) and utilize TSB 25-BE-003H posted on Hyundai Tech Info.
25-BE-003H TSB
Service Bulletin/Repair Instructions
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 reset the Connected Car Data Communication Unit (DCU) in Dealer Mode to resolve the connection.
24-01-092H-1
Service Campaign
Certain 2025MY Santa Fe (MX5A) and Santa Fe Hybrid (MX5A HEV) vehicles may have a Bluelink malfunction or not able to have Bluelink setup. This bulletin provides instructions to reset the network in Dealer Mode to prevent the Data Concentrator Unit (DCU) modem from experiencing a "Blue Link Not Open" error.
24-01-092H TSB
Service Campaign
Certain 2025MY Santa Fe (MX5A) and Santa Fe Hybrid (MX5A HEV) vehicles may have a Bluelink malfunction or not able to have Bluelink setup. This bulletin provides instructions to reset the network in Dealer Mode to prevent the Data Concentrator Unit (DCU) modem from experiencing a "Blue Link Not Open" error.
24-BE-007H-1
Service Bulletin/Repair Instructions
Certain Santa Cruz (NXT), Santa Fe (MX5A), Santa Fe Hybrid (MX5A HEV), and Tucson (NX4A) vehicles may exhibit a display screen flickering or intermittently going blank. This may be due to the shield width of the coaxial cable being too wide, causing a loose connection. Follow the procedures in this bulletin to adjust the width of the shield using a supplied shield adjustment jig.