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Service bulletins for the 2026 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.

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

Warranty extensions
26-01-074H DCS2026-09-26. UNKNOWN OR OTHER. Certain Tucson (NX4A) and Santa Cruz (NXT) vehicles may exhibit air bubbles forming on the surface of the dashboard (crash pad) due to poor adhesion caused by prolonged UV and heat exposure. Technical Service Bulletin (TSB) 26-01-074H provides instructions to inspect the dashboard (crash pad) for bubbling and, if necessary, to use needling and steel tamper tools to remove trapped air and repair the dashboard (crash pad) surface.
26-01-074H TSB2026-09-26. UNKNOWN OR OTHER. Certain Tucson (NX4A) and Santa Cruz (NXT) vehicles may exhibit air bubbles forming on the surface of the dashboard (crash pad) due to poor adhesion caused by prolonged UV and heat exposure. This bulletin provides instructions to inspect the dashboard (crash pad) for bubbling and, if necessary, to use needling and steel tamper tools to remove trapped air and repair the dashboard (crash pad) surface.
26-01-040H-1 TSB2026-09-02. EXTERIOR LIGHTING. Certain Tucson (NX4A) vehicles equipped with bulb type "inside rear combination lamp assembly" may have a crack on the left-hand side. This bulletin provides instructions to inspect the "inside rear combination lamp assembly" and replace it if a crack is found, or to install washers to prevent a crack from developing.
26-01-041H TSB2026-05-12. ELECTRICAL SYSTEM. Certain Tucson (NX4A) vehicles may experience Over-the-Air (OTA) update failures due to outdated Central Communication Unit (CCU) software. This bulletin provides instructions to perform a software update for the CCU.
26-01-040H DCS2026-05-08. EXTERIOR LIGHTING. Certain Tucson (NX4A) vehicles have a crack on the left-hand side of the “inside rear combination lamp assembly" due to interference with the tailgate panel. Technical Service Bulletin (TSB) 26-01-040H provides instructions to replace the “inside rear combination lamp assembly".
26-01-040H TSB2026-05-08. EXTERIOR LIGHTING. Certain Tucson (NX4A) vehicles have a crack on the left-hand side of the “inside rear combination lamp assembly” due to interference with the tailgate panel. This bulletin provides instructions to replace the “inside rear combination lamp assembly.”

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-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.
26-01-074H DCS2026-09-26. Warranty extension. UNKNOWN OR OTHER. Certain Tucson (NX4A) and Santa Cruz (NXT) vehicles may exhibit air bubbles forming on the surface of the dashboard (crash pad) due to poor adhesion caused by prolonged UV and heat exposure. Technical Service Bulletin (TSB) 26-01-074H provides instructions to inspect the dashboard (crash pad) for bubbling and, if necessary, to use needling and steel tamper tools to remove trapped air and repair the dashboard (crash pad) surface.
26-01-074H TSB2026-09-26. Warranty extension. UNKNOWN OR OTHER. Certain Tucson (NX4A) and Santa Cruz (NXT) vehicles may exhibit air bubbles forming on the surface of the dashboard (crash pad) due to poor adhesion caused by prolonged UV and heat exposure. This bulletin provides instructions to inspect the dashboard (crash pad) for bubbling and, if necessary, to use needling and steel tamper tools to remove trapped air and repair the dashboard (crash pad) surface.
26-BE-025H TSB2026-09-09. Service bulletin. ELECTRICAL SYSTEM. Some Tucson (NX4, NX4A, NX4M), Tucson Hybrid (NX4 HEV), and Tucson Plug-In Hybrid (NX4 PHEV) vehicles may exhibit a 12-volt battery drain due to the passive entry feature of the Digital Key 2 premium causing repeated wakeup of the vehicle. This bulletin provides instructions to perform software updates for the Ultra-Wide Band (UWB) and Body Domain Control (BDC) modules.
26-01-040H-1 TSB2026-09-02. Warranty extension. EXTERIOR LIGHTING. Certain Tucson (NX4A) vehicles equipped with bulb type "inside rear combination lamp assembly" may have a crack on the left-hand side. This bulletin provides instructions to inspect the "inside rear combination lamp assembly" and replace it if a crack is found, or to install washers to prevent a crack from developing.
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.
26-01-041H TSB2026-05-12. Warranty extension. ELECTRICAL SYSTEM. Certain Tucson (NX4A) vehicles may experience Over-the-Air (OTA) update failures due to outdated Central Communication Unit (CCU) software. This bulletin provides instructions to perform a software update for the CCU.
26-01-040H DCS2026-05-08. Warranty extension. EXTERIOR LIGHTING. Certain Tucson (NX4A) vehicles have a crack on the left-hand side of the “inside rear combination lamp assembly" due to interference with the tailgate panel. Technical Service Bulletin (TSB) 26-01-040H provides instructions to replace the “inside rear combination lamp assembly".
26-01-040H TSB2026-05-08. Warranty extension. EXTERIOR LIGHTING. Certain Tucson (NX4A) vehicles have a crack on the left-hand side of the “inside rear combination lamp assembly” due to interference with the tailgate panel. This bulletin provides instructions to replace the “inside rear combination lamp assembly.”
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.
26-01-035H TSB2026-04-15. Service campaign. ELECTRICAL SYSTEM. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink functions. This may be due to an occasional disconnection on Verizon’s communication network. Follow the procedures in this bulletin to verify Bluelink Data Communication Unit (DCU) network connection and if needed, reset the DCU in Dealer Mode to resolve the connection.
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).
25-01-061H-1 DCS2025-12-02. Service campaign. ELECTRICAL SYSTEM. not being implemented. The DCU module may shut down telematics services after one year. TSB 25-01-061H-1 provides instructions to perform a software update for the DCU module.
25-01-061H-1 TSB2025-12-02. Service campaign. ELECTRICAL SYSTEM. Certain Tucson (NX4A) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.
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.
TDF /TDFA/TDFB/TDFC2025-09-15. Service campaign. ELECTRICAL SYSTEM. Hyundai Motor America is currently investigating an ongoing auto mode update concern with software GDS event #1297. Some vehicles are not able to complete the update after multiple attempts and some are completing the update after multiple initial failed attempts. Technicians may experience consistent Data Communication Unit (DCU) software upgrade failures when attempting to update to the latest version. The matter is being investigated to address the update failures and recover any failed modules. We will provide an update once the issue is resolved and the suspension is lifted.
25-01-061H TSB2025-09-13. Service campaign. ELECTRICAL SYSTEM. Certain Tucson (NX4A) vehicles may exhibit a Data Communication Unit (DCU) software error due to the internal timer initialization logic not being implemented. The DCU module may shut down telematics services after one year. This bulletin provides instructions to perform a software update for the DCU module.

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