2023 Hyundai Tucson TSBs

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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 recovery.

or symptoms listed below, refer to the Service Procedure to diagnose the condition. DIAGNOSTIC TROUBLE CODES: P070500 - Transmission range sensor circuit malfunction P070512 - Transmission range sensor circuit malfunction P070514 - Transmission range sensor circuit malfunction P07051C - Transmission range sensor circuit malfunction P070600 - Transmission range sensor circuit range/performance P070661 - Transmission range sensor circuit range/performance P070696 - Transmission range sensor circuit range/performance SYMPTOMS: Malfunction Indicator Light (MIL) illuminated 5th gear fail-safe Intermittently wont shift into D or R Intermittently wont shift out of Park Intermittent ly no engine cr ank/n o start in P or N with or without MIL or DTC.

service procedure and replace the related solenoid and harness.

certain 22MY Santa Cruz, and certain 21-23MY Tucson equipped with 2.5L GDI engines with one or more misfire DTC(s) due to internally leaking GDI injector(s)

service procedure and replace the related solenoid and harness.

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).

update for Tucson Hybrid (NX4 HEV) / Plug-in Hybrid (NX4 PHEV) vehicles to improve the following DTC and symptoms:

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.

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 via Navigation Updater (NAU) and updated by USB.

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.

The changes may vary depending on vehicle type, model, and navigation system as described in this TSB.

system.

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 is https://update.hyundai.com/US/EN/navigationUpdate. For certain models equipped with a relevant Bluelink package, the software may be downloaded and applied via OTA update.

system.

system.

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.

system.

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.

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.

of no audio or intermittent sound from the vehicle's speakers.

vehicles equipped with an external amplifier.

(transmission clutch slip in gear above limit) listed on Page 2.

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.

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.

If you are servicing a vehicle with any symptoms listed below or DTCs (listed on Page 2) , follow the Service Procedure on Page 3. SYMPTOMS: Shifter System Malfunction displayed in the cluster Wont shift into or out of gear or wont shift out of Park Incorrect gear display in cluster and/or wont start

or symptoms listed below, refer to the Service Procedure to diagnose the condition.

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 previous vehicle repairs or modifications.

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.

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.

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 diagnostic communication to track battery state of charge (SOC) and current parasitic draw history.

This bulletin provides instructions on how to replace both inoperative horns.

Follow the procedure in this TSB to replace the C-pillar garnishes for vehicles exhibiting this condition.

This may be due to an irregular disconnection on Verizons communication network. Follow the procedure in this TSB to reestablish the connection via the AVN pinhole reset method.

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.

This may be due to an irregular disconnection on Verizons communication network. Follow the procedure in this TSB to reestablish the connection via the AVN pinhole reset method.

2022 2023MY Tucson (NX4A) and Santa Cruz (NXT) vehicles. If a vehicle exhibits this paint peeling condition, replace the front door trim panel assembly.

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.

This causes the sunroof to become inoperable. This bulletin provides information to program sunroof operation.

drivers-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.

counterfeit driverside 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 noncertified 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.

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).

closing condition due to an inoperative fuel filler door release actuator. This bulletin provides instructions to replace the fuel filler door release actuator.

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. Follow the procedure in this bulletin to properly remove the windshield wiper blade protective cover on all new wiper blades.

This bulletin describes the procedure to inspect the brakes, resurface or replace and perform a brake burnishing procedure.