2021 Hyundai Santa FE Hybrid Technical Service Bulletins

47 technical service bulletins (TSBs) are on record for the 2021 Hyundai Santa FE Hybrid. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11038798Oct 27, 2026Electrical system. This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 2nd Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2026 2nd 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…
• 11038465Oct 9, 2026Engine. Certain Santa Fe Hybrid (TM HEV), Santa Fe Plug-in Hybrid (TM PHEV), Tucson Hybrid (NX4 HEV), andTucson Plug-in Hybrid (NX4 PHEV) vehicles may experience intake air line freezing and Exhaust GasRecirculation (EGR) valve corrosion due to excessive condensation accumulating within the EGR system.This condition can lead to drivability concerns related to the following DTCs: - P040400: (Exhaust Gas Recirculation…
• 11038458Oct 8, 2026Engine. Some vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin outlines the combustion chamber cleaning procedure for vehicles diagnosed with this condition.
• 11038433Oct 8, 2026Engine. Certain Santa Fe Hybrid (TM HEV), Santa Fe Plug-in Hybrid (TM PHEV), Tucson Hybrid (NX4 HEV), and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may experience intake air line freezing and Exhaust Gas Recirculation (EGR) valve corrosion due to excessive condensation accumulating within the EGR system.
• 11038432Oct 8, 2026Engine. Certain Santa Fe Hybrid (TM HEV), Santa Fe Plug-in Hybrid (TM PHEV), Tucson Hybrid (NX4 HEV), and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may experience intake air line freezing and Exhaust Gas Recirculation (EGR) valve corrosion due to excessive condensation accumulating within the EGR system.
• 11038456Oct 7, 2026Engine. Certain vehicles equipped with internal combustion engines may exhibit higher-than-expected engine oil consumption. This bulletin provides the inspection and repair procedures for vehicles exhibiting this condition. All internal combustion engines consume engine oil as part of normal engine operation. Oil consumption rates may vary based on mileage, operating conditions, driving habits, and maintenance history.
• 11038179Sep 26, 2026Electrical 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.
• 11038173Sep 26, 2026Electrical 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…
• 11037233Aug 26, 2026Other or unknown. Certain vehicles may exhibit excessive paint peeling or bubbling of the primer/paint film on the exterior metal body panels: hood, fender(s), roof, door(s), quarter panel(s), and tailgate/trunk. This warranty extension only applies to factory-applied paint and does not cover collision-related paint repairs or vehicles with a salvaged title.
• 11032529Apr 28, 2026Other or unknown. Certain Hyundai vehicles with exterior white paint may exhibit peeling or bubbling on metal body panels: hood, fender(s), roof, door(s), quarter panel(s), and tailgate/trunk. The paint warranty coverage for affected vehicles has been extended to 10 years/unlimited miles from the date of original retail delivery or date of first use and is valid for original and subsequent owners.
• 11032528Apr 28, 2026Other or unknown. Some Hyundai vehicles with exterior white paint may exhibit peeling or bubbling on metal body panels: hood, fender(s), roof, door(s), quarter panel(s), and tailgate/trunk. The paint warranty coverage for affected vehicles has been extended to 10 years/unlimited miles from the date of original retail delivery or date of first use and is valid for original and subsequent owners.
• 11032523Apr 10, 2026Air bags. 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…
• 11032522Apr 10, 2026Air bags. 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…
• 11030684Mar 30, 2026Other or unknown. 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 to providing vehicles of outstanding quality and value.
• 11028966Feb 19, 2026Other or unknown. 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.
• 11028965Feb 18, 2026Other or unknown. 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…
• 11028963Feb 18, 2026Other or unknown. 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…
• 11028320Jan 27, 2026Other or unknown. Certain Santa Fe Hybrid (TM HEV) and Santa Fe Plug-In Hybrid (TM PHEV) 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…
• 11028319Jan 27, 2026Other or unknown. Certain Santa Fe Hybrid (TM HEV) and Santa Fe Plug-In Hybrid (TM PHEV) 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…
• 11025476Nov 6, 2025Exterior lighting. 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…
• 11023692Sep 30, 2025Electrical system. 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.
• 11023405Sep 23, 2025Engine. Certain Santa Fe Hybrid (TM HEV) and Tucson Hybrid (NX4 HEV) vehicles may exhibit a restricted coolant flow condition, which may be accompanied by a warning message (e.g., Coolant Supplement, Refill Inverter Coolant) in the cluster. No related DTCs are stored, and coolant level is normal in the reservoir tank. The coolant flow may be restricted by debris, causing abnormally high Electric Water Pump (EWP) speed.
• 11019684Jun 19, 2025Engine. Certain 2020-2022MY Tucson Hybrid and Santa Fe Hybrid vehicles equipped with the 1.6T-GDI Gamma II HEV engine may experience an engine oil leak originating from the Continuous Variable Valve Duration (CVVD) Actuator Oil Seal. Follow the service procedure below to replace the CVVD Oil Seal.
• 11019525Jun 18, 2025Other or unknown. Certain 2015 – 2018 model year Elantra, 2015 – 2019 model year Sonata, 2017 – 2021 model year Tucson, 2017 – 2018 model year Santa Fe Sport, 2019 model year Santa Fe, 2021 – 2023 model year Santa Fe Hybrid, and 2020 – 2023 model year Palisade vehicles may exhibit excessive paint peeling or bubbling of the primer/paint film on the exterior metal body panels: hood, fender(s), roof, door(s), quarter panel(s), and…
• 11019671Jun 9, 2025Other or unknown. Some vehicles may exhibit excessive paint peeling or bubbling of the primer/paint film on the exterior metal body panels: hood, fender(s), roof, door(s), quarter panel(s), and tailgate/trunk. This warranty extension only applies to factory-applied paint and does not cover collision-related paint repairs or vehicles with a salvaged title.
• 11018889May 24, 2025Other or unknown. Description: Certain Hyundai vehicles with exterior white paint may exhibit peeling or bubbling on metal body panels: hood, fender(s), roof, door(s), quarter panel(s), and tailgate/trunk. The paint warranty coverage for affected vehicles has been extended to 10 years/unlimited miles from the date of original retail delivery or date of first use, and is valid for original and subsequent owners.
• 11018888May 24, 2025Other or unknown. Certain Hyundai vehicles with exterior white paint may exhibit peeling or bubbling on metal body panels: hood, fender(s), roof, door(s), quarter panel(s), and tailgate/trunk. The paint warranty coverage for affected vehicles has been extended to 10 years/unlimited miles from the date of original retail delivery or date of first use, and is valid for original and subsequent owners.
• 11018876May 16, 2025Electrical system. 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…
• 11018575May 8, 2025Electrical system. 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 pinhole reset method.
• 11017111Apr 7, 2025Electrical system. 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. If you are experiencing issues with remote commands, or other Bluelink services, please see the instructions below to reestablish the connection via the AVN pinhole reset method.
• 11015936Mar 18, 2025Electrical system. 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 pinhole reset method.
• 10253275Apr 9, 2024Transmission and drivetrain. This TSB provides a procedure to diagnose and replace, if necessary, an automatic transmission with Incorrect Ratio DTC (transmission clutch slip in gear above limit) listed on Page 2.
• 10251285Feb 14, 2024Visibility (wipers, defrost, mirrors). This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. If the protective cover is not removed correctly, there is a possibility of the rubber insert and rail spring becoming partially separated on the inner side of the wiper blade, which could lead to poor wiping performance and/or possible scratching of the windshield glass.
• 10245580Nov 10, 2023Transmission and drivetrain. This TSB provides information to diagnose the push button shifter operation.
• 10247189Oct 13, 2023Engine cooling. This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
• 10243329Sep 14, 2023Transmission and drivetrain. If you are servicing an 8-speed front-wheel-drive vehicle equipped with automatic transaxle with one or more of the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition.
• 10241887Aug 28, 2023Electrical system, Transmission and drivetrain. The Shift-By-Wire (SBW) buttons have been made available as separate service parts for the SBW lever. If replacement of the SBW button is required due to one or more button plating peeling, replace the button(s) with a new one. Do not replace the complete SBW lever.
• 10240088Jul 18, 2023Transmission and drivetrain, Engine cooling. This bulletin provides information related to the cleaning of the cooling system and coolant change to address the following problem: • “Refill Inverter Coolant” warning light displayed on the cluster • No DTC’s present • Normal level of coolant in Inverter Reservoir Tank • Measured EWP Speed > 2,800 RPM The cause of the warning light is due to increased EWP Speed due to poor flow of coolant inside…
• 10240087Jul 17, 2023Equipment, Electrical system. This Service Information bulletin provides information on how to update the Apple Carplay software from Hyundai’s Navigation Updates page. The current version of Google Maps has 10 times the data transmission compared to the previous version. As a countermeasure, an update with a frame skip logic has been added to resolve the data congestion with Google Maps.
• 10240084Jul 11, 2023Transmission and drivetrain. If you are servicing an 8-speed front-wheel-drive vehicle equipped with automatic transaxle with one or more of the DTC or symptoms listed below, refer to the Service Procedure to diagnose the condition.
• 10238350Jun 8, 2023Transmission and drivetrain. This bulletin provides information related to the cleaning of the cooling system and coolant change to address the following problem: • “Refill Inverter Coolant” warning light displayed on the cluster • No DTC’s present • Normal level of coolant in Inverter Reservoir Tank • Measured EWP Speed > 2,800 RPM The cause of the warning light is due to increased EWP Speed due to poor flow of coolant inside…
• 10235566Apr 24, 2023Body and structure. Hyundai applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships. It provides a barrier between the paint and contaminants, such as rail dust, acid rain, and industrial fallout. In rare cases, the paint can become clouded under the PPF. These spots are the result of moisture trapped between the PPF and the paint.
• 10235557Apr 17, 2023Engine cooling. This bulletin provides information related to the Engine Control Module (ECM) software update for Santa Fe Plug-in Hybrid (TM PHEV) and Santa Fe Hybrid (TM HEV) vehicles to improve the following DTC and symptoms:
• 10235353Apr 10, 2023Transmission and drivetrain. This bulletin provides information related to the HCU software upgrade to resolve the following symptoms: • Possibility that the engine cannot run due to poor immobilizer function (although driving with electric motor is possible) • HCU function setting error
• 10232200Feb 27, 2023Engine cooling, Electrical system. This bulletin provides information related to the Engine Control Module (ECM) software update for Santa Fe Hybrid (TM HEV) / Santa Fe Plug-In Hybrid (TM PHEV) vehicles to revise the following DTC logic: • P1441(PCSV rear and hose missing) • P1A77(HSG Belt slip) • P00B7(Excessive ITM motor operating current) • P2118 (ETC target position failure) • P0401 (EGR gas flow insufficient) • P0236 (Turbocharger…
• 10230904Jan 30, 2023Visibility (wipers, defrost, mirrors). 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…
• 10230909Jan 24, 2023Tires, Wheels. This bulletin describes the procedure to diagnose and repair tire pressure monitoring system (TPMS) DTC(s) on some 19MY and newer Santa Fe (TMA), 2021MY and newer Santa Fe Hybrid (TM HEV), 2022MY and newer Santa Fe Plug-In Hybrid (TM PHEV), and 2019MY and newer Palisade (LX2) vehicles equipped with surround view monitoring (SVM) system.

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