# Service bulletins for the 2025 Genesis G80

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.

37 bulletins from NHTSA, as of 2026-10-19.

- [26\-DS\-001G TSB](/bulletins/11037286.md), 2026-09-11, Service bulletin: POWER TRAIN. 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.
- [26\-EV\-004G DCS](/bulletins/11034031.md), 2026-06-23, Warranty extension: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. Genesis is extending the warranty coverage for the Integrated Charging Control Unit \(ICCU\) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners. Follow the flowchart in Technical Service Bulletin \(TSB\) 26\-EV\-004G to check for an active or stored occurrence of any Diagnostic Trouble Code \(DTC\) that requires replacement of the ICCU and replace the ICCU and ICCU fuse if necessary. Some vehicles may have an active DTC that requires ICCU replacement. Please note that any vehicles under 15 years/180,000 miles are covered by this TSB, even if vehicle is within High Voltage Warranty of 10 years/120,000 miles.
- [26\-EV\-004G DN](/bulletins/11034030.md), 2026-06-23, Warranty extension: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. Genesis is extending the warranty coverage for the Integrated Charging Control Unit \(ICCU\) and ICCU fuse to 15 years/180,000 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\-EV\-004G TSB](/bulletins/11034029.md), 2026-06-23, Warranty extension: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. Genesis is extending the warranty coverage for the Integrated Charging Control Unit \(ICCU\) and ICCU fuse to 15 years / 180,000 miles from the date of original retail delivery or date of first use \(whichever occurs first\) and is valid for original and subsequent owners. Follow the flowchart in this bulletin to check for an active or stored occurrence of any Diagnostic Trouble Code \(DTC\) that requires replacement of the ICCU and replace the ICCU and ICCU fuse if necessary. Some vehicles may have an active DTC that requires ICCU replacement.
- [L05G EM](/bulletins/11034026.md), 2026-06-23, Warranty extension: ELECTRICAL SYSTEM. Your vehicle may exhibit battery drain due to the Central Control Panel \(CCP\) not entering sleep mode. At Genesis, we are committed to providing vehicles of outstanding quality and value. In an effort to meet this commitment, Genesis is conducting a campaign to update the Central Control Panel \(CCP\) Software at NO CHARGE to you.
- [26\-HA\-002G TSB](/bulletins/11033845.md), 2026-06-16, Service bulletin: ENGINE. 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](/bulletins/11033711.md), 2026-06-06, 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.
- [DTN DL](/bulletins/11032523.md), 2026-05-08, 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 DCS](/bulletins/11032522.md), 2026-05-08, 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\-035G DCS](/bulletins/11031317.md), 2026-04-15, Service campaign: ELECTRICAL SYSTEM. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Connected Car Services \(CCS\) functions. This may be due to an occasional disconnection on Verizon's communication network. Technical Service Bulletin \(TSB\) 26\-01\-035G provides instructions to verify Connected Car Data Communication Unit \(DCU\) network connection and if needed, reset the DCU in Dealer Mode to resolve the connection.
- [26\-01\-035G TSB](/bulletins/11031316.md), 2026-04-15, Service campaign: ELECTRICAL SYSTEM. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Connected Car Services \(CCS\) functions. This may be due to an occasional disconnection on Verizon’s communication network. Follow the procedures in this bulletin to verify Connected Car Data Communication Unit \(DCU\) network connection and if needed, reset the DCU in Dealer Mode to resolve the connection.
- [26\-AD\-001G](/bulletins/11030323.md), 2026-03-30, Service bulletin: LANE DEPARTURE: WARNING; EXTERIOR LIGHTING; LANE DEPARTURE: ASSIST; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; FORWARD COLLISION AVOIDANCE: WARNINGS. 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\-01\-012G TSB](/bulletins/11028322.md), 2026-02-05, Service campaign: ELECTRICAL SYSTEM. Certain G80 \(RG3\) 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\-BE\-025G TSB](/bulletins/11027056.md), 2026-01-06, Service bulletin: ELECTRICAL SYSTEM. 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.
- [25\-01\-090G DCS](/bulletins/11027049.md), 2026-01-06, Service campaign: ELECTRICAL SYSTEM. Certain G80 \(RG3\) and GV80 \(JX1\) vehicles may exhibit battery drain due to the Central Control Panel \(CCP\) not entering sleep mode. This occurs when a communication error causes the touch\-module control IC and MCU to repeatedly reinitialize, preventing the system from entering sleep mode.
- [25\-01\-090G TSB](/bulletins/11027048.md), 2026-01-06, Service campaign: ELECTRICAL SYSTEM. Certain G80 \(RG3\) and GV80 \(JX1\) vehicles may exhibit battery drain due to the Central Control Panel \(CCP\) not entering sleep mode. This occurs when a communication error causes the touch\-module control IC and MCU to repeatedly reinitialize, preventing the system from entering sleep mode. This bulletin provides instructions to perform a software update for the CCP.
- [25\-BD\-012H TSB](/bulletins/11025476.md), 2025-11-12, 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.
- [25\-BE\-020G TSB](/bulletins/11023693.md), 2025-10-03, Service bulletin: ELECTRICAL 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.
- [25\-ST\-001G TSB](/bulletins/11023409.md), 2025-10-01, Service bulletin: STEERING. 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.
- [GCE25\-92\-E140 TSB](/bulletins/11023104.md), 2025-09-12, Service campaign: ELECTRICAL SYSTEM. This bulletin provides information related to the DCU \(DATA CONNECTIVITY UNIT\) software enhancement \(OTA\) for RG3 PE vehicles in Puerto Rico.
- [25\-01\-057G TSB](/bulletins/11022376.md), 2025-09-03, Service campaign: ELECTRICAL SYSTEM. Certain G80 \(RG3\) 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\-BE\-014G TSB](/bulletins/11019686.md), 2025-06-24, Service bulletin: UNKNOWN OR OTHER. Certain G80 \(RG3\) and G80 Electrified \(RG3 EV\) vehicles may have an inoperable horn due to an exposure to moisture from the horizontal mounting position. This bulletin provides instructions to replace and vertically mount the horns and add a LH extension cable for the LH horn.
- [25\-BD\-001G\-1 TSB](/bulletins/11019055.md), 2025-06-04, Service bulletin: UNKNOWN OR OTHER. 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\-018G\-1 TSB](/bulletins/11018580.md), 2025-05-27, Service campaign: ELECTRICAL SYSTEM. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Connected Car Services \(CCS\) functions. This may be due to an occasional disconnection on Verizon’s communication network. Follow the procedures in this bulletin to verify Connected Car Data Communication Unit \(DCU\) network connection and if needed, reset the DCU in Dealer Mode to resolve the connection.
- [25\-GI\-009G](/bulletins/11017471.md), 2025-05-02, Service bulletin: ELECTRICAL SYSTEM. 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.

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