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.
26-DS-001G TSB
Service Bulletin/Repair Instructions
Some GV70 (JK1, JK1A), GV80 (JX1) and G80 (RG3) vehicles may have a hum or whine noise condition from the rear differential at certain speeds. This bulletin describes the procedure to inspect the vehicle for the hum or whine noise and, if necessary, to tighten the rear differential lock nut to specification. If the hum or whine noise remains after tightening the lock nut, then this bulletin provides instructions to replace the rear differential or other driveline components as necessary.
Z06G OL
Warranty Program/Extension
Certain 2023 – 2025 model year Genesis GV60, 2023 – 2025 model year Genesis GV70 Electrified, and 2023 – 2025 model year Genesis G80 Electrified vehicles may require replacement of the Integrated Charging Control Unit (ICCU) and ICCU Fuse. At Genesis, we are committed to providing vehicles of outstanding quality and value. In an effort to meet this commitment, Genesis is extending the warranty coverage for the ICCU and ICCU Fuse Replacement under this condition to 15 years or 180,000 miles from the date of original retail delivery or date of first use and is valid for original and subsequent owners.
26-HA-002G TSB
Service Bulletin/Repair Instructions
Some Genesis vehicles (listed below) equipped with Lambda-III 3.5T-GDI engines may exhibit reduced heater performance due to engine coolant deposits clogging the heater core. This bulletin provides instructions to verify the concern and to replace the front and rear heater core (if applicable).
26-GI-002G 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-AD-001G
Service Bulletin/Repair Instructions
Some 2020MY 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-EM-008G TSB
Service Bulletin/Repair Instructions
Some GV70 (JK1A) vehicles equipped with 2.5T engines may display a check engine light with DTC P04F000 (EVAP System High Load Purge Line 'A' Performance) due to debris inside the dual purge ejector assembly and/or intercooler outlet hose. This bulletin provides instructions to perform a DTC check, and if necessary, replace the dual purge ejector assembly and intercooler outlet hose.
25-BE-025G TSB
Service Bulletin/Repair Instructions
Certain vehicles equipped with Premium Gen6 Navigation head units may exhibit issues with Genesis Connected Services, navigation, voice recognition, and Bluetooth functionality. In some cases, the home screen may display applications not intended for the U.S. market. This TSB provides the procedure to update the Premium Gen6 Navigation software to address these conditions.
914G OL
Service Campaign
This notice is being sent to you as our records indicate you may have previously received an important Service Campaign notice for Genesis Campaign Number 914G. “Genesis is conducting a service campaign to update the Engine Control Module (ECM) Software for certain 2021 – 2024 model year G80, certain 2022 – 2025 model year GV70, and certain 2021 – 2024 model year GV80 vehicles equipped with 2.5 T-GDI engines.” Genesis has revised the list of vehicles impacted by Campaign 914G and determined that your vehicle IS NOT affected by this service campaign.
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.
916G OL
Service Campaign
Genesis has become aware that some vehicles may exhibit a malfunction indicator light with DTC P26CB00 (Engine Coolant Pump Performance/Stuck Off). This may be caused by a stuck impeller on the EWP for the water-cooled intercooler.
25-BE-020G 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-ST-001G TSB
Service Bulletin/Repair Instructions
Some vehicles may exhibit a rubbing type noise when turning the steering wheel. Follow the procedure in this TSB to inspect the source of the noise and, if necessary, replace the Steering Shaft Dust Cover.
25-01-051 OL
Service Campaign
Genesis has become aware that some vehicles may illuminate the Check Engine Light indicator as a result of detected engine misfires.
25-01-062G DN
Service Campaign
Certain GV70 (JK1A) vehicles equipped with 3.5 T-GDI Lambda III engines may exhibit a malfunction indicator light with DTC P26CB00 (Engine Coolant Pump Performance/Stuck Off). This may be caused by a stuck impeller on the electric water pump (EWP) for the water-cooled intercooler. The California Air Resources Board has determined that these vehicles may be releasing air pollutants which exceed Federal and California standards.
25-01-062G TSB
Service Campaign
Certain GV70 (JK1A) vehicles equipped with 3.5 T-GDI Lambda III engines may exhibit a malfunction indicator light with DTC P26CB00 (Engine Coolant Pump Performance/Stuck Off). This may be caused by a stuck impeller on the electric water pump (EWP) for the water-cooled intercooler. Follow the procedures in this TSB to check for DTC P26CB00, and if confirmed, replace the electric water pump assembly.
25-01-051G DN
Service Campaign
Certain G80 (RG3), GV70 (JK1/JK1A), and GV80 (JX1) vehicles equipped with Theta III 2.5L T-GDI engine may illuminate the Check Engine Light as a result of misfire DTCs P0300, P0301, P0302, P0303, or P0304. The California Air Resources Board has determined that these vehicles may be releasing air pollutants which exceed Federal and California standards.
25-01-051G TSB
Service Campaign
Certain G80 (RG3), GV70 (JK1/JK1A), and GV80 (JX1) vehicles equipped with Theta III 2.5L T-GDI engines may illuminate the Check Engine Light as a result of misfire DTCs P0300, P0301, P0302, P0303, or P0304 during cold start. This bulletin provides instructions for updating the Engine Control Module (ECM).
25-HA-002G TSB
Service Bulletin/Repair Instructions
Certain Genesis vehicles may experience insufficient cooling in the cabin due to leakage at the evaporator core. This bulletin provides instructions to inspect the A/C system for leaks and replace the evaporator core, if necessary.
25-BD-001G-1 TSB
Service Bulletin/Repair Instructions
This bulletin provides repair information for the dark chrome trim when stains are present. Some stains may occur from hard water or cleaning chemicals used during a car wash. Follow the procedures below to replace the affected dark chrome moldings.
25-01-034G TSB
Service Campaign
Certain GV70 (JK1) vehicles may show signs of damage to the passenger-side rear floor panel caused during the assembly process at the factory. This bulletin provides the procedure to inspect the panel and apply sandpaper and undercoating spray to the affected areas.
25-BE-002G 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 and updated by USB. The NAU website is https://update.genesis.com/US/EN/navigationUpdate. For certain models equipped with a relevant Genesis Connected Services (GCS) package, the software may be downloaded and applied via OTA update.
25-01-024G-1 TSB
Service Campaign
Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Connected Car Services functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the procedure in this TSB to reestablish the connection by resetting the AVN unit.
25-GI-009G
Service Bulletin/Repair Instructions
Certain Genesis vehicles may experience an inoperable horn from moisture or carbonization at the contact point. This bulletin provides a guide to inspect and replace the horns.
25-01-024G EM
Service Campaign
Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Genesis Connected Service functions. This may be due to an irregular disconnection on Verizon's communication network.
25-01-024G TSB
Service Campaign
Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Connected Car Services functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the procedure in this TSB to reestablish the connection by resetting the AVN unit.
25-BD-001G TSB
Service Bulletin/Repair Instructions
This procedure provides repair information for the dark chrome trim when stains are present. Some stains may occur from hard water or cleaning chemicals used during a car wash. Follow the procedures below to replace the affected dark chrome moldings.
24-BE-020G
Service Bulletin/Repair Instructions
Certain 2025MY GV70 (JK1A) vehicles may experience an illuminated check engine light for DTC P059A from a faulty connection due to improper soldering within the sensor components. This bulletin outlines the procedure to replace the active air flap (AAF) on-board diagnostic (OBD) sensors to resolve this issue.
24-BE-016G TSB
Service Bulletin/Repair Instructions
Certain GV70 (JK1A) and GV70 Electrified (JK1A EV) 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-DS-001G-1 TSB
Service Bulletin/Repair Instructions
Certain GV70 (JK1, JK1A), GV80 (JX1) and G80 (RG3) vehicles may have a hum or whine noise condition from the rear differential at certain speeds. This bulletin describes the procedure to inspect the vehicle for the hum or whine noise and if necessary to tighten the rear differential lock nut first. If the hum or whine noise remains, then replace the rear differential or other driveline components as necessary.
24-DS-003G
Service Bulletin/Repair Instructions
This bulletin provides information to inspect and replace the front or rear wheel bearing hub assemblies for all Genesis vehicles. This procedure is applicable when noise (whirring, roaring, grinding, rumbling, etc.) is present which gets louder when driving with more speed.
24-DS-001G
Service Bulletin/Repair Instructions
Certain GV70 (JK1 and JK1A), GV80 (JX1) and G80 (RG3) vehicles may have a hum or whine noise condition from the rear differential at certain speeds. This bulletin describes the procedure to inspect the vehicle for the hum or whine noise and if necessary to tighten the rear differential lock nut first. If the hum or whine noise remains, then replace the rear differential or other driveline components as necessary.
24-AT-003G
Service Bulletin/Repair Instructions
When servicing an 8-speed automatic transmission vehicle with a “Check Engine light” and any of the DTCs listed below, follow the Service Procedure and, if necessary, replace the E-module.
21-AT-015G
Service Bulletin/Repair Instructions
This TSB provides a procedure to diagnose and repair a transmission for the following Incorrect Ratio DTC (transmission clutch slipping more than 200 rpm in gear).
21-BD-001G
Service Bulletin/Repair Instructions
Genesis applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships. 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.
21-AT-012G
Service Bulletin/Repair Instructions
This bulletin provides a procedure to transfer oil pressure data to the TCU using GDS Mobile. This procedure is necessary to reduce the TCU learning time and improve the shift quality. ï· Before replacing an automatic transmission (Pages 2~3): Input the data from the new transmission into the TCU using the GDS. ï· Before replacing a TCU (Pages 4~6): Back up the oil pressure data from the old TCU into the GDS and then transfer the data to the new TCM.