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Service bulletins for the 2023 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.

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

Warranty extensions
Z08 OL2026-08-15. VISIBILITY/WIPER. Certain 2022 – 2025 model year Santa Cruz and 2022 – 2025 model year Tucson vehicles may have front wipers that do not return to the designated park position due to a loose wiper motor crank arm nut. At Hyundai, we are committed to providing vehicles of outstanding quality and value. In an effort to meet this commitment, the warranty coverage for the Wiper Motor Crank Arm Nut under these conditions has been extended to 10 years/100,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners.
26-BD-007H DCS2026-07-21. VISIBILITY/WIPER. Some Tucson (NX4A and NX4M) and Santa Cruz (NXT) vehicles may have front wipers that do not return to the designated park position due to a loose wiper motor crank arm nut. Hyundai is extending the warranty coverage for the wiper motor crank arm nut under this condition to 10 years / 100,000 miles from the date of original retail delivery or date of first use (whichever comes first) and is valid for original and subsequent owners. Follow the procedure in Technical Service Bulletin (TSB) 26-BD-007H to replace the wiper motor crank arm nut to address this condition.
26-BD-007H DN2026-07-21. VISIBILITY/WIPER. Some Tucson (NX4A and NX4M) and Santa Cruz (NXT) vehicles may have front wipers that do not return to the designated park position due to a loose wiper motor crank arm nut. Hyundai is extending the warranty coverage for the wiper motor crank arm nut under this condition to 10 years / 100,000 miles from the date of original retail delivery or date of first use (whichever comes first) and is valid for original and subsequent owners.
26-BD-007H TSB2026-07-21. VISIBILITY/WIPER. Some Tucson (NX4A and NX4M) and Santa Cruz (NXT) vehicles may have front wipers that do not return to the designated park position due to a loose wiper motor crank arm nut. Hyundai is extending the warranty coverage for the wiper motor crank arm nut under this condition to 10 years / 100,000 miles from the date of original retail delivery or date of first use (whichever comes first) and is valid for original and subsequent owners. Follow the procedure in this bulletin to replace the wiper motor crank arm nut to address this condition.

A warranty extension may pay for a repair after the basic warranty has ended. Read the document for which vehicles and which repair it covers.

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Bulletins, newest first
26-01-081H DCS2026-10-14. Service campaign. ENGINE. 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 Control Circuit Range) - P049D00: (EGR 'A' Control Position Exceeded Learning Limit) - P047100: (Exhaust Pressure Sensor 'A' Circuit Range/Performance) - P012800: Coolant Thermostat (Coolant Temperature below Thermostat Regulation Temperature) - P262B00: (Control Module Power Off Timer Performance) - P050C00: Cold Start Engine Coolant Temperature Performance - P1DFD00: (EVAP System Purge Pump Target Speed) - P2DFD00: (EVAP System Purge Pump Performance) - P112000: (Inlet Metering Valve – Malfunction) - P033500: (Crankshaft Position Sensor A)
26-EM-016H TSB2026-10-14. Service bulletin. ENGINE. 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. All internal combustion engines consume some engine oil during normal operation, depending on driving conditions and mileage, and this procedure should only be performed when deemed necessary based on inspection and diagnosis of the vehicle as outlined in TSB 26-EM-015H, Engine Oil Consumption – Inspection & Repair Guidelines, or the latest revision.
26-EM-015H TSB2026-10-13. Service bulletin. ENGINE. 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. Hyundai recommends following the prescribed maintenance schedule and periodically checking the engine oil level using the dipstick to maintain proper engine oil level.
26-01-081H TSB2026-10-09. Service campaign. ENGINE. 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. This condition can lead to drivability concerns related to the following DTCs: • P040400: (Exhaust Gas Recirculation Control Circuit Range) • P049D00: (EGR 'A' Control Position Exceeded Learning Limit) • P047100: (Exhaust Pressure Sensor 'A' Circuit Range/Performance) • P012800: Coolant Thermostat (Coolant Temperature below Thermostat Regulation Temperature) • P262B00: (Control Module Power Off Timer Performance) • P050C00: Cold Start Engine Coolant Temperature Performance • P1DFD00: (EVAP System Purge Pump Target Speed) • P2DFD00: (EVAP System Purge Pump Performance) • P112000: (Inlet Metering Valve – Malfunction) • P033500: (Crankshaft Position Sensor A) The bulletin below provides instructions to perform a software update for the Engine Control Module (ECM).
26-01-081H DN2026-10-09. Service campaign. ENGINE. 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. This condition can lead to drivability concerns related to the following DTCs: • P040400: (Exhaust Gas Recirculation Control Circuit Range) • P049D00: (EGR 'A' Control Position Exceeded Learning Limit) • P047100: (Exhaust Pressure Sensor 'A' Circuit Range/Performance) • P012800: Coolant Thermostat (Coolant Temperature below Thermostat Regulation Temperature) • P262B00: (Control Module Power Off Timer Performance) • P050C00: Cold Start Engine Coolant Temperature Performance • P1DFD00: (EVAP System Purge Pump Target Speed) • P2DFD00: (EVAP System Purge Pump Performance) • P112000: (Inlet Metering Valve – Malfunction) • P033500: (Crankshaft Position Sensor A)
Z08 OL2026-08-15. Warranty extension. VISIBILITY/WIPER. Certain 2022 – 2025 model year Santa Cruz and 2022 – 2025 model year Tucson vehicles may have front wipers that do not return to the designated park position due to a loose wiper motor crank arm nut. At Hyundai, we are committed to providing vehicles of outstanding quality and value. In an effort to meet this commitment, the warranty coverage for the Wiper Motor Crank Arm Nut under these conditions has been extended to 10 years/100,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners.
26-BD-007H DCS2026-07-21. Warranty extension. VISIBILITY/WIPER. Some Tucson (NX4A and NX4M) and Santa Cruz (NXT) vehicles may have front wipers that do not return to the designated park position due to a loose wiper motor crank arm nut. Hyundai is extending the warranty coverage for the wiper motor crank arm nut under this condition to 10 years / 100,000 miles from the date of original retail delivery or date of first use (whichever comes first) and is valid for original and subsequent owners. Follow the procedure in Technical Service Bulletin (TSB) 26-BD-007H to replace the wiper motor crank arm nut to address this condition.
26-BD-007H DN2026-07-21. Warranty extension. VISIBILITY/WIPER. Some Tucson (NX4A and NX4M) and Santa Cruz (NXT) vehicles may have front wipers that do not return to the designated park position due to a loose wiper motor crank arm nut. Hyundai is extending the warranty coverage for the wiper motor crank arm nut under this condition to 10 years / 100,000 miles from the date of original retail delivery or date of first use (whichever comes first) and is valid for original and subsequent owners.
26-BD-007H TSB2026-07-21. Warranty extension. VISIBILITY/WIPER. Some Tucson (NX4A and NX4M) and Santa Cruz (NXT) vehicles may have front wipers that do not return to the designated park position due to a loose wiper motor crank arm nut. Hyundai is extending the warranty coverage for the wiper motor crank arm nut under this condition to 10 years / 100,000 miles from the date of original retail delivery or date of first use (whichever comes first) and is valid for original and subsequent owners. Follow the procedure in this bulletin to replace the wiper motor crank arm nut to address this condition.
26-EE-007H TSB2026-06-23. Service bulletin. ELECTRICAL SYSTEM. Some Palisade (LX2), Tucson (NX4), and Tucson Hybrid (NX4 HEV) vehicles may experience battery drain due to continuous operation of the cooling fan after vehicle ignition has been turned off, potentially resulting in a no-start condition. The continuous cooling fan operation is caused by a stuck relay in the engine room PCB block. This bulletin provides instructions to replace the engine room PCB block to ensure the proper operation of the cooling fan.
26-GI-002H TSB2026-06-06. Service bulletin. ELECTRICAL SYSTEM. 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 DL2026-05-08. Other. AIR 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 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.
DTN DCS2026-05-08. Other. AIR 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 deployment, and have caused serious injuries and fatalities. Please see attached announcement, provided by NHTSA, for more details.
26-EE-003H TSB2026-04-21. Service bulletin. ENGINE; ELECTRICAL SYSTEM. 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.
26-AD-001H TSB2026-03-07. Service bulletin. FORWARD COLLISION AVOIDANCE: WARNINGS; LANE DEPARTURE: ASSIST; EXTERIOR LIGHTING; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; LANE DEPARTURE: WARNING. Some 2019MY and newer vehicles equipped with a front view camera may illuminate certain warning lights and trigger DTC C272246 fault code for the front camera. In the following cases, the front camera auto-calibration range may be exceeded while driving: • If the front camera is not properly installed and is completely or partially detached. • In case of excessive changes affecting the vehicle's balance (e.g., loading excessively heavy cargo in a specific location of the vehicle, or significant under-inflation of the tires). • Specific road conditions affecting the vehicle's balance (e.g., excessive road crown) This TSB provides instructions on how to service the vehicle when the front camera related warning light(s) are triggered due to system out of calibration (DTC_C272246).
26-AT-002H2026-02-24. Service bulletin. POWER TRAIN. 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) system to become inoperative. Follow the procedure in this bulletin to replace the Electric Oil Pump on affected vehicles.
26-BE-003H TSB2026-02-24. Service bulletin. UNKNOWN OR OTHER. Some Tucson (NX4A) vehicles may have an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. This bulletin provides instructions on how to replace both inoperative horns.
26-EM-004H TSB2026-02-10. Service bulletin. ENGINE. Some Tucson (NX4, NX4A) vehicles may have DTC P218100, P2181F0, and/or P2181F1 (Cooling System Performance) set in the Electronic Control Unit (ECU), resulting in an illuminated Check Engine warning lamp. This TSB provides instructions to replace the Integrated Thermal Management (ITM) module and update both the Engine Control Module (ECM) and Transmission Control Module (TCM), if applicable. Follow the flowchart in this bulletin to update the appropriate modules.
26-FL-001H TSB2026-01-13. Service bulletin. FUEL/PROPULSION SYSTEM. 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 on affected vehicles, using the kit in the Parts Information section.
25-BE-021H TSB2025-11-18. Service bulletin. STRUCTURE:BODY. Certain Tucson (NX4, NX4A) and Tucson Hybrid (NX4 HEV) vehicles may exhibit an improper fuel filler door opening or closing condition due to an inoperative fuel filler door release actuator. This bulletin provides instructions to replace the fuel filler door release actuator.
25-BD-012H TSB2025-11-12. Service bulletin. EXTERIOR 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 during normal driving operation.
25-BE-020H TSB2025-10-03. Service bulletin. ELECTRICAL 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.
25-01-010H-1 9B4 OL2025-08-22. Service campaign. ELECTRICAL SYSTEM. Certain Hyundai vehicles may exhibit a warning light with Diagnostic Trouble Code (“DTC”) P1BB20 due to a battery over voltage condition.
25-01-010H-1 DN2025-07-22. Service campaign. ELECTRICAL SYSTEM. Certain Elantra Hybrid (CN7 HEV), Sonata Hybrid (DN8 HEV), and Tucson Hybrid (NX4 HEV) vehicles may exhibit a warning light due to DTC Code P1BB20 (12V Lithium Battery Cell Voltage High). The California Air Resources Board has determined that these vehicles may be releasing air pollutants which exceed Federal and California standards.
25-01-010H-1 TSB2025-07-22. Service campaign. ELECTRICAL SYSTEM. This bulletin provides the procedure to update the software for the Battery Management System (BMS) on certain Elantra Hybrid (CN7 HEV), Sonata Hybrid (DN8 HEV), and Tucson Hybrid (NX4 HEV) vehicles that may exhibit a warning light with DTC P1BB200 and enter Limp Mode.

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