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Service bulletins for the 2025 Genesis G90

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.

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

By type

By component

By trouble code

Bulletins, newest first
26-BD-009G TSB2026-09-26. Service bulletin. STRUCTURE:BODY. Some Genesis G90 (RS4) vehicles equipped with the power door system (PDS) may produce a clunking noise when the power door is manually opened or closed. This bulletin provides instructions to remove the PDS from the affected door and perform a partial replacement of the PDS spindle sub-assembly to address the noise condition.
26-HA-002G TSB2026-06-16. 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 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.
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.
26-01-035G DCS2026-04-15. 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 TSB2026-04-15. 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-001G2026-03-30. 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).
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.
25-BE-020G TSB2025-10-03. 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 TSB2025-10-01. 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.
25-BE-002G TSB2025-06-03. Service bulletin. ELECTRICAL SYSTEM. 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.
25-01-018G-1 TSB2025-05-27. 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-009G2025-05-02. 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.
25-01-019G-1 DN2025-04-30. Service campaign. UNKNOWN OR OTHER. Certain G80 (RG3) and G90 (RS4) vehicles equipped with the 2.5T-GDI Theta III or 3.5T-GDI Lambda III engine may exhibit reduced air conditioning performance due to chemical damage to the suction and discharge seal washers caused by foreign substances.
25-01-019G-1 TSB2025-04-30. Service campaign. UNKNOWN OR OTHER. Certain G80 (RG3) and G90 (RS4) vehicles equipped with the 2.5T-GDI Theta III or 3.5T-GDI Lambda III engine may exhibit reduced air conditioning performance due to chemical damage to the suction and discharge seal washers caused by foreign substances. This bulletin provides instructions to replace the A/C suction and discharge seal washers to resolve the concern.
25-01-019G OL2025-03-21. Service campaign. UNKNOWN OR OTHER. Genesis has become aware that some vehicles may exhibit reduced air conditioning performance.
25-01-011H EM2025-03-14. 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.
25-01-019G TSB2025-03-05. Service campaign. UNKNOWN OR OTHER. Certain G80 (RG3) and G90 (RS4) vehicles equipped with the 2.5T-GDI Theta III or 3.5T-GDI Lambda III engine may exhibit reduced air conditioning performance due to chemical damage to the suction and discharge seal washers caused by foreign substances. This bulletin provides instructions to replace the A/C suction and discharge seal washers to resolve the concern.
25-01-018G TSB2025-03-05. 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-BE-003G DN2025-02-25. Service bulletin. ELECTRICAL SYSTEM. Genesis Motor America has noted that several vehicles were impacted by a telecommunications outage that occurred on Sunday, February 9th , resulting in the potential loss of connectivity or interruptions when attempting to use Connected Car Services functions. Voice Recognition, Sports Media, and Weather will not be available. Retailer stock and retailed vehicles are both affected. If a guest calls in and vehicle is experiencing issues related to Connected Car Services, please have them come into the retailer to assist with resetting the Connected Car Services Data Communication Unit (DCU) and utilize TSB 25-BE-003G posted on Genesis Tech Info.
25-BE-003G TSB2025-02-17. Service bulletin. ELECTRICAL SYSTEM. Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Connected Car Service (CCS) functions. This may be due to an occasional disconnection on Verizon’s communication network. Follow the procedures in this bulletin to reset the Connected Car Data Communication Unit (DCU) in Dealer Mode to resolve the connection.

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