2021 Hyundai Santa Fe TSBs

98 manufacturer communications for the 2021 Hyundai Santa Fe sit in NHTSA's public file. A TSB is factory repair guidance, not a recall — the repair is not automatically free. The 2021 Santa Fe problem report covers complaints, recalls, and investigations.

98Communications
7Campaigns & extensions

What the bulletins cover

Electrical36 bulletins
Transmission & drivetrain31 bulletins
Engine18 bulletins
Wheels & tires4 bulletins
Visibility & wipers3 bulletins
Airbags2 bulletins

Warranty extensions, campaigns & software updates

Worth checking your VIN against — these can mean free or reimbursed work if your vehicle qualifies.

Warranty extension Z09 OL March 30, 2026 Warranty extension

Certain 2021 – 2023 model year Santa Fe, 2021 – 2023 model year Santa Fe Hybrid, and 2022 – 2023 model year Santa Fe Plug-In Hybrid vehicles may experience an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. At Hyundai, we are committed…

Warranty extension 26-BE-001H-1 DCS February 19, 2026 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…

Warranty extension 26-BE-001H-1 DN February 18, 2026 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…

Warranty extension 26-BE-001H-1 TSB February 18, 2026 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…

Electrical 25-01-024H-1 TSB May 8, 2025 Service campaign

Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the procedure in this TSB to reestablish the connection via the AVN…

Electrical 24-01-009H-1 May 10, 2024 Service campaign

A class settlement against Hyundai Motor America (“HMA”) that had alleged that certain 2011 – 2022 model year Hyundai vehicles that were not equipped with an engine immobilizer (called the “Class Vehicles”) contain design flaws, including the failure to manufacture the Class…

Electrical 24-01-009H-1 May 9, 2024 Service campaign

A class settlement against Hyundai Motor America (“HMA”) that had alleged that certain 2011 – 2022 model year Hyundai vehicles that were not equipped with an engine immobilizer (called the “Class Vehicles”) contain design flaws, including the failure to manufacture the Class…

Most recent service bulletins

The 20 most recent of 98 communications on file. The complete set is searchable on NHTSA's page for this vehicle.

Transmission & drivetrain 26-AT-005H TSB June 5, 2026

This bulletin provides information related to a Transmission Control Unit (TCU) software update for some vehicles equipped with an 8-speed wet dual clutch transmission (8WDCT). The software update revises the touch point learning variation, improving drivability and judder…

Engine · Electrical 26-EE-003H TSB April 18, 2026

Some vehicles may exhibit difficulty starting in cold weather. This bulletin provides the procedure to perform an inspection on the starter magnetic switch for potential freezing and, if necessary, replace the starter magnetic switch (solenoid) assembly.

Airbags DTN DCS April 10, 2026

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.…

Airbags DTN DL April 10, 2026

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…

Transmission & drivetrain 26-AT-001H TSB March 3, 2026

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…

Transmission & drivetrain 26-AT-002H February 21, 2026

Some Santa Fe (TMA) and Tucson (NX4A) vehicles equipped with a 2.5L GDI engine and 8 speed automatic transmission may have DTC U028700 (Lost Communication With Trans Fluid Pump Module) set by the transmission Electric Oil Pump (EOP). This DTC can cause the Idle Stop & Go (ISG)…

Engine 26-EM-005H TSB February 5, 2026

Some Santa Fe (TMA) vehicles may have DTCs P218100, P2181F0, and/or P2181F1 (Cooling System Performance) set in the Electronic Control Unit (ECU), resulting in an illuminated Check Engine warning lamp. Follow the procedure in this TSB to replace the Integrated Thermal Management…

Fuel system 26-FL-001H TSB January 7, 2026

Some vehicles equipped with a 2.5L GDI Theta III engine (non-Turbo) may exhibit one or more misfire DTCs due to the GDI fuel injectors leaking internally. This may be caused by internal filter breakage in the injector. Follow the procedure in this TSB to replace all 4 injectors…

Electrical P33 OL December 19, 2025

In response to this trend, we engineered a software upgrade that addresses the social media theft method and made it available to owners of eligible models free of charge at authorized Hyundai dealers since early 2023. In addition to the anti-theft software, we’ve developed a…

Electrical 25-01-089H TSB December 15, 2025

This bulletin provides the service procedure for installation of a key cylinder reinforcement protector assembly and two anti-theft decals on the front windows.

Electrical 25-01-089H DN December 15, 2025

In addition to the Anti-Theft software provided under Service Campaign 993 (TSB 24-01-009H-1), a zinc reinforced ignition cylinder protector hardware upgrade is being made available to customers upon request. This supplemental security measure is to be installed at the ignition…

Electrical 25-01-089H DCS December 15, 2025

Upon customer's request ONLY, the Technical Service Bulletin (TSB) 25-01-089H provides the service procedure for installation of a key cylinder reinforcement protector assembly and two anti-theft decals on the front windows. This repair procedure is being provided in addition to…

Electrical 25-BD-012H TSB November 6, 2025

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…

Electrical 25-BE-020H TSB September 30, 2025

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.

Transmission & drivetrain 25-AT-001H TSB May 30, 2025

Certain Santa Fe (TMA) and Sonata (DN8/DN8A) vehicles equipped with 8-speed dual clutch transmissions (8DCT) may exhibit one of the DTCs listed below, related to the high pressure electric oil pump (HP EOP). Follow the procedures in this TSB to update the Transmission Control…

Electrical 25-BE-002H TSB May 16, 2025

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…

Fuel system 25-FL-001H January 9, 2025

Some vehicles equipped with a 2.5L GDI Theta III engine (non-Turbo) may exhibit one or more misfire DTCs due to the GDI injectors leaking internally. This may be caused by internal filter breakage in the injector. Follow the procedure in this TSB to replace all 4 injectors on…

Engine 24-FL-004H December 18, 2024

This bulletin provides the procedure to update the Engine Control Module (ECM) and the Transmission Control Module (TCM) for 2021-2023MY Santa Fe (TMa) vehicles to improve operation of the Idle Stop and Go (ISG) system. Under certain circumstances the vehicle may not restart…

Engine 24-EM-001H July 23, 2024

Certain 20-22MY Sonata (DN8a), 21-23MY Santa Fe (TMa), and 22-23MY Tucson (NX4a) vehicles may experience a warning lamp illumination for a diagnostic trouble code P2181 that is related to the Integrated Thermal Management Module (ITM). Follow the service procedure outlined in…

Transmission & drivetrain 24-AT-001H February 28, 2024

This bulletin provides the procedure for updating the automatic transmission TCU and ECU software (Santa Fe ONLY) to improve shift quality, judder with ISG enabled and hesitation when accelerating.

← 2021 Santa Fe problems All Santa Fe TSB years
Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.