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Service bulletins for the 2021 Hyundai Santa Fe

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.

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

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Bulletins, newest first
23-01-014H-42023-06-02. Service bulletin. ELECTRICAL SYSTEM. Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Module), to revise the OEM Hyundai burglar alarm system operation and ignition start logic, and installation of two anti-theft decals for the front windows.
23-AT-002H2023-06-02. Service bulletin. POWER TRAIN. This bulletin provides service procedures to prevent possible moisture intrusion of the HP EOP (High Flow Electric Oil Pump) connector when servicing the 8-speed wet dual clutch transmission (8WDCT). If moisture enters the HF EOP connector, this can result in corrosion and insufficient connection of the terminals.
23-AT-004H2023-06-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. This TSB applies only if Recall 236 or Service Campaign T8N has been performed and the 8 speed wet dual clutch transmission (8WDCT) replacement is necessary related due to high pressure electric oil pump (HP EOP) DTC’s P1C2D03 (HP EOP Motor Position Sensor), P193B79 - HP EOP Performance, P0868 - Transmission Fluid Pressure (TFP) Sensor – Low. Replace the 8WDCT under this bulletin.
23-BD-007H2023-05-04. Service bulletin. STRUCTURE:BODY. 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.
23-EE-007H2023-05-04. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). 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:
23-01-014H-42023-05-04. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:SENSOR. Certain Hyundai vehicles may not be equipped with an immobilizer. This bulletin provides the service procedure to update the IBU/BCM (Integrated Body Control Unit/Body Control Module), to revise the OEM Hyundai burglar alarm system operation and ignition start logic, and installation of two anti-theft decals for the front windows.
23-01-014H-42023-05-04. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:SENSOR. Hyundai has launched an anti-theft software upgrade and window decal campaign (Campaign 993) in response to an increase in thefts of certain Hyundai vehicles not equipped with engine immobilizers targeted through social media. In November 2021, engine immobilizers became standard on all Hyundai vehicles produced.
23-01-032H2023-05-02. Service bulletin. POWER TRAIN. 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
23-AT-003H2023-05-02. Service bulletin. ENGINE AND ENGINE COOLING. If you are servicing an 8-speed vehicle with a “Check Engine” light on and one or more of the DTC listed, follow the service procedure and replace the related solenoid and harness.
23-EE-004H2023-04-04. Service bulletin. POWER TRAIN. This bulletin provides information related to the Hybrid Control Unit (HCU) software update for Santa Fe Plug-in Hybrid (TM PHEV) vehicles to improve the following symptom: 1. Oil Dilution: Some vehicles may experience increased oil consumption and white smoke due to the diluting of engine oil with fuel because of the frequent transition between EV ↔ Engine mode during the winter season a. Modify fuel injection strategy below 10℃ and add oil heating function based on the driving pattern.
23-FL-002H2023-04-04. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides the diagnostic procedure for the GDI injector(s) in certain 21-23MY Sonata, 21-22MY Santa Fe, certain 22MY Santa Cruz, and certain MY21-23 Tucson equipped with 2.5L GDI engines with one or more misfire DTC(s) due to internally leaking GDI injector(s).
23-FL-001H2023-03-02. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. 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 boost sensor range abnormal) • P0299 (Turbocharger boost pressure too low)
23-BE-001H2023-02-02. Service bulletin. WHEELS; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. 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.
23-BD-002H2023-02-02. Service bulletin. VISIBILITY. 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.
22-FL-002H2022-11-01. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides the diagnostic procedure for the GDI injector(s) in certain 21-22MY Sonata, Santa Fe, and certain 22MY Santa Cruz, and Tucson equipped with 2.5L GDI engines with one or more misfire DTC(s) due to internally leaking GDI injector(s).
22-AT-011H2022-11-01. Service bulletin. POWER TRAIN. This bulletin outlines changes to the service manual regarding the replacement of 8-speed dual clutch transmissions (DCT) and associated transmission control module (TCM). Additional steps, not in the service manual, are required within GDS prior to replacing the DCT/TCM, otherwise drivability concerns and/or DTCs may occur.
22-AT-010H2022-08-24. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC listed below, follow the Service Procedure and replace the valve body internal harness and the input/output speed sensor.
22-01-059H2022-08-24. Service bulletin. POWER TRAIN. This bulletin provides the procedure to update the TCU software to improve drivability and shift quality.
22-HC-002H2022-08-24. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. This bulletin addresses a warning light “Refill Inverter Coolant” displayed on the instrument cluster, but inspection of the under hood blue coolant reservoir is found to be at normal level (not below “MIN” marking on the reservoir bottle). This may be caused by poor flow of antifreeze inside the low-conductivity coolant pipe from internal debris, resulting in unusual high EWP operation being detected. Follow the procedure outlined in this bulletin to flush/discharge debris from the cooling system and replace the blue coolant. To effectively resolve, the flushing must be performed section by section as instructed. After flushing of the cooling system is done, updated BSC-2 coolant will be installed.
22-01-064H2022-08-05. Service bulletin. ELECTRICAL SYSTEM. Some 2021 Santa Fe (TMa) vehicles may display an error message in the instrument cluster when making a selection in the Driver Assistance Menu. Possible messages are: • "Vehicle controller error, settings cannot be applied for RCTA alert active assist, please try again later.” • "Vehicle controller error, settings cannot be applied, please try again later.” • “Vehicle system connection is unstable. Please try again later.” This bulletin provides the service procedure to update the instrument cluster software to resolve the condition stated above.
22-GI-006H2022-08-05. Service bulletin. TIRES. Effective June 2, 2008, Federal Motor Vehicle Safety Standard 110 (FMVSS 110) established a threshold for correcting load carrying capacity information indicated on tire placards when vehicle weight has been increased before retail sale. This limit is the lesser of 1.5% of GVWR or 100 pounds. If the total added weight exceeds the lesser of the limit, a label must be added to the driver-side B-pillar within 25mm (1 inch) of the original tire placard.
22-EM-010H2022-08-05. Service bulletin. ENGINE AND ENGINE COOLING. Follow the guidelines outlined in this bulletin to inspect and clean or replace certain components of the engine intake system accordingly during engine short block or sub-assembly replacement.
22-AT-009H2022-08-05. Service bulletin. POWER TRAIN. If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC listed on Page 2, follow the repair procedure and perform the diagnosis. If necessary, replace the High Flow electric oil pump (HF EOP) for HF EOP issues or the Dual Clutch Transmission for High Pressure electric oil pump (HP EOP) issues.
22-AT-006H2022-06-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); POWER TRAIN. If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC listed below, follow the repair procedure and replace the related input/output speed sensor and harness.
22-AT-005H2022-05-10. Service bulletin. POWER TRAIN. If you are servicing an applicable vehicle with a “Check Engine” light on and one or more of the DTC listed below, follow the repair procedure and replace the related solenoid and valve body harness.

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