Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
Z08 OL
Warranty Program/Extension
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-003H TSB
Service Bulletin/Repair Instructions
Some Santa Cruz (NXT) vehicles may have a tonneau cover that does not latch or unlatch, does not retract properly, and/or has a v-gap that is present when closed. This may be due to a broken or missing clip on the underside of the tonneau cover. This bulletin provides instructions to inspect and, if necessary, repair the tonneau cover function using the Tonneau Cover Repair Kit or by replacing the tonneau handle and latch assembly.
26-BD-007H DCS
Warranty Program/Extension
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 DN
Warranty Program/Extension
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 TSB
Warranty Program/Extension
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-AT-005H TSB
Service Bulletin/Repair Instructions
This bulletin provides information related to a Transmission Control Unit (TCU) software update for some vehicles equipped with an 8-speed wet dual clutch transmission (8WDCT). The software update revises the touch point learning variation, improving drivability and judder symptoms. Some 8WDCTs (indicated by a new part number) received an updated clutch spring. The correct TCU software update must be matched with the correct corresponding 8WDCT hardware, otherwise, drivability concerns may occur. This service procedure should be performed prior to any 8WDCT replacements done for drivability/judder concerns.
26-GI-002H TSB
Service Bulletin/Repair Instructions
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 DCS
Other
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.
DTN DL
Other
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.
26-01-028H
Warranty Program/Extension
Certain Santa Cruz (NXT) vehicles equipped with 8-speed dual clutch transmissions (8DCT) may set one of the high pressure electric oil pump (HP EOP) DTCs listed below. This bulletin provides the service procedure to update the Transmission Control Unit (TCU) with improved logic to address these DTCs and enhance operation of the 8DCT.
26-AT-001H TSB
Service Bulletin/Repair Instructions
Some Santa Cruz (NXT), Santa Fe (TMA, MX5A), and Sonata (DN8A) models may require replacement of the 8-speed wet dual clutch transmission (8WDCT) when the vehicle sets one of the high pressure electric oil pump (HP EOP) DTCs listed below. This bulletin provides instructions to replace the 8WDCT.
26-AD-001H TSB
Service Bulletin/Repair Instructions
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-BD-011H-1 TSB
Service Bulletin/Repair Instructions
Some Santa Cruz (NXT) vehicles may have a tonneau cover that does not latch or unlatch, retract properly, and/or have a v-gap is present when closed. This may be due to a broken or missing clip on the underside of the tonneau cover. This bulletin provides instructions to inspect and, if necessary, repair the tonneau cover function using the Tonneau Cover Repair Kit or replacing the tonneau handle & latch assembly.
25-SS-003H TSB
Service Bulletin/Repair Instructions
Some Santa Cruz (NXT) vehicles may exhibit a clunking or thumping noise from the rear of the vehicle while driving over rough roads. This may be caused by worn rear self-leveling shock absorbers. Follow the procedure in this bulletin to identify the source of the noise and replace the rear shock absorbers on affected vehicles.
25-BD-012H TSB
Service Bulletin/Repair Instructions
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 TSB
Service Bulletin/Repair Instructions
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-BD-011H TSB
Service Bulletin/Repair Instructions
Certain Santa Cruz (NXT) vehicles may exhibit a condition where the tonneau cover does not retract properly and/or a V-Gap is present when closed. This may be due to a broken or missing clip on the underside of the tonneau cover. Follow the instructions in this TSB to inspect and, if necessary, repair the tonneau cover function using the Tonneau Cover Repair Kit.
MSLA Reference OL
Other
This letter communication is to educate owners around the use of the Manual Speed Limit Assist (MSLA) feature.
25-BE-002H TSB
Service Bulletin/Repair Instructions
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 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.
MSLA_Reference
Other
This email communication is to educate owners around the use of the Manual Speed Limit Assist (MSLA) feature.
25-01-024H-1 TSB
Service Campaign
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.
24-BE-007H-1
Service Bulletin/Repair Instructions
Certain Santa Cruz (NXT), Santa Fe (MX5A), Santa Fe Hybrid (MX5A HEV), and Tucson (NX4A) vehicles may exhibit a display screen flickering or intermittently going blank. This may be due to the shield width of the coaxial cable being too wide, causing a loose connection. Follow the procedures in this bulletin to adjust the width of the shield using a supplied shield adjustment jig.
24-AT-002H
Service Bulletin/Repair Instructions
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.
24-BD-004H
Service Bulletin/Repair Instructions
This bulletin provides instructions to inspect and repair certain Santa Cruz (NXT) vehicles experiencing a condition where the tonneau cover does not retract properly and/or a V-Gap is present when closed.
24-BD-003H
Service Bulletin/Repair Instructions
This bulletin provides repair instructions for certain Santa Cruz (NXT) vehicles exhibiting difficulty with the tonneau cover not opening (does not unlatch when unlocked and the handle is in the open position) or not closing (does not latch when pulled closed and the handle is in the closed position).
24-BD-001H
Service Bulletin/Repair Instructions
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. Follow the procedure in this bulletin to properly remove the windshield wiper blade protective cover on all new wiper blades.
23-01-085H-1
Service Bulletin/Repair Instructions
Certain 2024MY Tucson (NX4A) and Santa Cruz (NXT) vehicles may exhibit water intrusion in the front passenger cabin from improper sealing of the windshield glass. This bulletin provides the procedures to fill in the gap of the urethane seal between the body and windshield glass.
23-01-085H
Service Bulletin/Repair Instructions
Certain 2024MY Tucson (NX4A) and Santa Cruz (NXT) vehicles may exhibit water intrusion in the front passenger cabin from improper sealing of the windshield glass. This bulletin provides the procedures to fill in the gap of the urethane seal between the body and windshield glass.
23-EM-005H
Service Bulletin/Repair Instructions
This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.