2023 Hyundai Tucson Technical Service Bulletins

62 technical service bulletins (TSBs) are on record for the 2023 Hyundai Tucson. 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.

• 11038807Oct 29, 2026Electrical system. Certain Tucson (NX4, NX4A), Tucson Hybrid (NX4 HEV), and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may be eligible for the installation of the latest OEM tow hitch harness on the vehicle. This bulletin provides the procedure to install the latest OEM tow hitch harness.
• 11038803Oct 29, 2026Electrical system. Certain Tucson (NX4, NX4A), Tucson Hybrid (NX4 HEV), and Tucson Plug-in Hybrid (NX4 PHEV) vehicles may be eligible for the installation of the latest OEM tow hitch harness on the vehicle.
• 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…
• 11038722Oct 15, 2026Back-over prevention (rear camera). Some Hyundai vehicles may be equipped with a parking distance warning (PDW) sensor(s) that may trigger various DTCs and display warning messages on the instrument cluster, resulting in the PDW sensor(s) failing to detect nearby objects or triggering multiple false alarms. This condition may be a result of external damage to the PDW sensor membrane or sensor cover from rock chips or road debris, a collision, or…
• 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.
• 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.
• 11036205Aug 4, 2026Visibility (wipers, defrost, mirrors). 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.
• 11035138Jul 6, 2026Visibility (wipers, defrost, mirrors). 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…
• 11035137Jul 6, 2026Visibility (wipers, defrost, mirrors). 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…
• 11035136Jul 6, 2026Visibility (wipers, defrost, mirrors). 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…
• 11034027Jun 17, 2026Electrical 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…
• 11033710May 27, 2026Electrical 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…
• 11031400Apr 18, 2026Engine, 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.
• 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…
• 11029906Feb 25, 2026Lane departure, Exterior lighting, Forward collision avoidance. 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.
• 11028968Feb 21, 2026Transmission and drivetrain. 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.
• 11028954Feb 12, 2026Other or unknown. 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.
• 11028667Feb 5, 2026Engine. 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…
• 11027589Jan 7, 2026Fuel 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.
• 11025596Nov 14, 2025Body and structure. 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.
• 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.
• 11020693Jul 9, 2025Electrical system. A software update is available for multiple vehicles equipped with either Display Audio 2.0V or the AVN 5th Gen Wide system.
• 11018870May 28, 2025Vehicle speed control. This letter communication is to educate owners around the use of the Manual Speed Limit Assist (MSLA) feature.
• 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…
• 11018406May 13, 2025Other or unknown. This email communication is to educate owners around the use of the Manual Speed Limit Assist (MSLA) feature.
• 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.
• 11012819Jan 9, 2025Fuel 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 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.
• 11008008Sep 12, 2024Electrical system. A software update is available for multiple vehicles equipped with either Display Audio 2.0V or the AVN 5th Gen Wide system.
• 11007485Aug 28, 2024Electrical system. A software update is available for multiple vehicles equipped with either Display Audio 2.0V or the AVN 5th Gen Wide system.
• 11006112Jul 23, 2024Engine. 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 this bulletin to replace the ITM.
• 11006111Jul 19, 2024Electrical system. Some vehicles equipped with the AVN 5th Gen Wide system may exhibit a condition where the radio app crashes frequently when entering radio mode and/or displays a message that reads “Uneven Road Ahead, Drive carefully” on the cluster along with a warning sound. Follow the procedure outlined in this bulletin to update the AVN software to resolve this condition.
• 11002708Jun 12, 2024Electrical system. A software update is available for multiple vehicles equipped with either Display Audio 2.0V or the AVN 5th Gen Wide system.
• 10253273Apr 10, 2024Body and structure. Certain 2023-2024MY Tucson (NX4a) vehicles may exhibit delamination of the C-pillar garnish. Follow the procedure in this TSB to replace the C-pillar garnishes for vehicles exhibiting this condition.
• 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.
• 10251278Feb 5, 2024Equipment, Electrical system. Some vehicles equipped with the AVN 5th Gen Wide system may exhibit a condition where the radio app crashes frequently when entering radio mode and/or a message that reads “Uneven Road Ahead, Drive carefully” on the cluster along with a warning sound. Follow the procedure outlined in this bulletin to update the AVN software to resolve this condition.
• 10249699Jan 10, 2024Electrical system. Some vehicles equipped with the AVN 5th Gen Wide system may exhibit a condition where the radio app crashes frequently when entering radio mode and/or displays a message that reads “Uneven Road Ahead, Drive carefully” on the cluster along with a warning sound. Follow the procedure outlined in this bulletin to update the AVN software to resolve this condition.
• 10247606Dec 15, 2023Transmission and drivetrain. This bulletin provides the procedure to update the Transmission Control Module (TCM) for the 2022MY Tucson (NX4/NX4a) vehicles and the Engine Control Module (ECM) for the 2022-24MY Tucson vehicles to improve operation of the Idle Stop and Go (ISG) system. Under certain circumstances the vehicle may not restart after ISG system has engaged and require a manual restart due to the lack of intake manifold pressure…
• 10245580Nov 10, 2023Transmission and drivetrain. This TSB provides information to diagnose the push button shifter operation.
• 10245577Nov 6, 2023Brakes. Certain Tucson (NX4A), Santa Cruz (NXT), Santa Fe (TMA), and Santa Fe Hybrid (TMA HEV) vehicles may exhibit a brake judder condition. This bulletin describes the procedure to inspect the brakes, resurface or replace and perform a brake burnishing procedure.
• 10247189Oct 13, 2023Engine cooling. This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
• 10243371Sep 22, 2023Transmission and drivetrain. This TSB applies to certain vehicles with 8-speed transmissions that may have had a machining operation out of specification that could lead to a higher mileage durability issue regarding the transmission oil pump. Follow the steps listed below to inspect the transmission. Replace the transmission if needed.
• 10243340Sep 18, 2023Engine cooling, Electrical system. This bulletin is issued to provide the extended battery diagnosis procedure using GDS-M. This battery diagnosis function displays the various battery-related faults such as: • Internal short circuit • Battery deterioration • Malfunction of electronic parts • Insufficient battery charge • Normal battery • Charging defect Battery diagnosis uses the battery sensor history saved for the last 30 days and ICU…
• 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.
• 10241885Aug 25, 2023Transmission and drivetrain. 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.

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