Genesis G90 Service Bulletins (2026)

12 manufacturer communications on file.

• October 26, 2026•Document ID: 11038808

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  26-GI-003G TSB

  Date Added:

  October 30, 2026

  Manufacturer:

  GENESIS

  Summary

  This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 2nd Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2026 2nd 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.

  Associated Products (28)

  2026 Genesis G702026 Genesis G802026 Genesis G902026 Genesis GV602026 Genesis GV702026 Genesis GV802025 Genesis G702025 Genesis G802025 Genesis G902025 Genesis GV602025 Genesis GV702025 Genesis GV802024 Genesis G702024 Genesis G802024 Genesis G902024 Genesis GV602024 Genesis GV702024 Genesis GV802023 Genesis G702023 Genesis G80+ 8 more
  Associated Documents

  • DownloadMC-11038808-0001.pdf↗
• October 22, 2026•Document ID: 11038692

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  26-BD-011G

  Date Added:

  October 26, 2026

  Manufacturer:

  GENESIS

  Summary

  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.

  Associated Products (63)

  2027 Genesis G802027 Genesis GV602027 Genesis GV702027 Genesis GV802026 Genesis G702026 Genesis G802026 Genesis G902026 Genesis GV602026 Genesis GV702026 Genesis GV802025 Genesis G702025 Genesis G802025 Genesis G902025 Genesis GV602025 Genesis GV702025 Genesis GV802024 Genesis G702024 Genesis G802024 Genesis G902024 Genesis GV60+ 43 more
  Associated Documents

  • DownloadMC-11038692-0001.pdf↗
• October 14, 2026•Document ID: 11038724

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION: WARNINGS

  Mfr Comm. #:

  26-GI-004G

  Date Added:

  October 28, 2026

  Manufacturer:

  GENESIS

  Summary

  Some Genesis vehicles may be equipped with a parking distance warning (PDW) sensor(s) that may trigger various DTCs and display warning messages on the instrument cluster, resulting in the PDW sensor(s) failing to detect nearby objects or triggering multiple false alarms. This condition may be a result of external damage to the PDW sensor membrane or sensor cover from rock chips or road debris, a collision, or previous vehicle repairs or modifications.

  Associated Products (25)

  2027 Genesis G802026 Genesis G702026 Genesis G802026 Genesis G902025 Genesis G702025 Genesis G802025 Genesis G902024 Genesis G702024 Genesis G802024 Genesis G902023 Genesis G702023 Genesis G802023 Genesis G902022 Genesis G702022 Genesis G802022 Genesis G902021 Genesis G702021 Genesis G802021 Genesis G902020 Genesis G70+ 5 more
  Associated Documents

  • DownloadMC-11038724-0001.pdf↗
• June 3, 2026•Document ID: 11033843

  Warranty Program/Extension
  UNKNOWN OR OTHER

  Mfr Comm. #:

  26-01-049G DCS

  Date Added:

  June 16, 2026

  Manufacturer:

  GENESIS

  Summary

  Certain G80 (RG3) and G90 (RS4) vehicles equipped with the 2.5T‑GDI Theta III or 3.5T‑GDI Lambda III engine may experience reduced air‑conditioning performance due to a refrigerant leak originating at the Thermostatic Expansion Valve (TXV). This condition may be caused by improper installation of the liquid and suction pipe O‑rings at the TXV connection point. Technical Service Bulletin (TSB) 26-01-049G provides instructions to replace the TXV O‑rings at the liquid and suction pipe connections to correct the condition.

  Associated Products (2)

  2026 Genesis G802026 Genesis G90
  Associated Documents

  • DownloadMC-11033843-0001.pdf↗
• June 3, 2026•Document ID: 11033842

  Warranty Program/Extension
  UNKNOWN OR OTHER

  Mfr Comm. #:

  26-01-049G TSB

  Date Added:

  June 16, 2026

  Manufacturer:

  GENESIS

  Summary

  Certain G80 (RG3) and G90 (RS4) vehicles equipped with the 2.5T‑GDI Theta III or 3.5T‑GDI Lambda III engine may experience reduced air‑conditioning performance due to a refrigerant leak originating at the Thermostatic Expansion Valve (TXV).This condition may be caused by improper installation of the liquid and suction pipe O‑rings at the TXV connection point. This bulletin provides instructions to replace the TXV O‑rings at the liquid and suction pipe connections to correct the condition.

  Associated Products (2)

  2026 Genesis G802026 Genesis G90
  Associated Documents

  • DownloadMC-11033842-0001.pdf↗
• May 27, 2026•Document ID: 11033711

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  26-GI-002G TSB

  Date Added:

  June 6, 2026

  Manufacturer:

  GENESIS

  Summary

  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.

  Associated Products (27)

  2026 Genesis G802026 Genesis G902026 Genesis GV702025 Genesis G702025 Genesis G802025 Genesis G902025 Genesis GV602025 Genesis GV702025 Genesis GV802024 Genesis G702024 Genesis G802024 Genesis G902024 Genesis GV602024 Genesis GV702024 Genesis GV802023 Genesis G702023 Genesis G802023 Genesis G902023 Genesis GV602023 Genesis GV70+ 7 more
  Associated Documents

  • DownloadMC-11033711-0001.pdf↗
• April 10, 2026•Document ID: 11032523

  Other
  AIR BAGS

  Mfr Comm. #:

  DTN DL

  Date Added:

  May 8, 2026

  Manufacturer:

  GENESIS

  Summary

  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.

  Associated Products (325)

  2026 Genesis G702026 Genesis G802026 Genesis G902026 Genesis GV602026 Genesis GV702026 Genesis GV802026 Hyundai Elantra2026 Hyundai Elantra N2026 Hyundai Ioniq 52026 Hyundai Ioniq 5 N2026 Hyundai Ioniq 62026 Hyundai Ioniq 6 N2026 Hyundai Ioniq 92026 Hyundai Kona2026 Hyundai Nexo2026 Hyundai Palisade2026 Hyundai Santa Cruz2026 Hyundai Santa Fe2026 Hyundai Sonata2026 Hyundai Tucson+ 305 more
  Associated Documents

  • DownloadMC-11032523-0001.pdf↗
• April 10, 2026•Document ID: 11032522

  Other
  AIR BAGS

  Mfr Comm. #:

  DTN DCS

  Date Added:

  May 8, 2026

  Manufacturer:

  HYUNDAI

  Summary

  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.

  Associated Products (325)

  2026 Genesis G702026 Genesis G802026 Genesis G902026 Genesis GV602026 Genesis GV702026 Genesis GV802026 Hyundai Elantra2026 Hyundai Elantra N2026 Hyundai Ioniq 52026 Hyundai Ioniq 5 N2026 Hyundai Ioniq 62026 Hyundai Ioniq 6 N2026 Hyundai Ioniq 92026 Hyundai Kona2026 Hyundai Nexo2026 Hyundai Palisade2026 Hyundai Santa Cruz2026 Hyundai Santa Fe2026 Hyundai Sonata2026 Hyundai Tucson+ 305 more
  Associated Documents

  • DownloadMC-11032522-0001.pdf↗
• April 10, 2026•Document ID: 11031317

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  26-01-035G DCS

  Date Added:

  April 15, 2026

  Manufacturer:

  GENESIS

  Summary

  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.

  Associated Products (13)

  2026 Genesis G802026 Genesis G902026 Genesis GV602026 Genesis GV702026 Genesis GV802025 Genesis G802025 Genesis G902025 Genesis GV602025 Genesis GV802024 Genesis G902024 Genesis GV602023 Genesis G902023 Genesis GV60
  Associated Documents

  • DownloadMC-11031317-0001.pdf↗
• April 10, 2026•Document ID: 11031316

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  26-01-035G TSB

  Date Added:

  April 15, 2026

  Manufacturer:

  GENESIS

  Summary

  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.

  Associated Products (13)

  2026 Genesis G802026 Genesis G902026 Genesis GV602026 Genesis GV702026 Genesis GV802025 Genesis G802025 Genesis G902025 Genesis GV602025 Genesis GV802024 Genesis G902024 Genesis GV602023 Genesis G902023 Genesis GV60
  Associated Documents

  • DownloadMC-11031316-0001.pdf↗
• March 10, 2026•Document ID: 11030323

  Service Bulletin/Repair Instructions
  LANE DEPARTURE: ASSIST; LANE DEPARTURE: WARNING; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; EXTERIOR LIGHTING; FORWARD COLLISION AVOIDANCE: WARNINGS

  Mfr Comm. #:

  26-AD-001G

  Date Added:

  March 30, 2026

  Manufacturer:

  GENESIS

  Summary

  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).

  Associated Products (28)

  2026 Genesis G702026 Genesis G802026 Genesis G902026 Genesis GV702026 Genesis GV802025 Genesis G702025 Genesis G802025 Genesis G902025 Genesis GV702025 Genesis GV802024 Genesis G702024 Genesis G802024 Genesis G902024 Genesis GV702024 Genesis GV802023 Genesis G702023 Genesis G802023 Genesis G902023 Genesis GV702023 Genesis GV80+ 8 more
  Associated Documents

  • DownloadMC-11030323-0001.pdf↗
• November 6, 2025•Document ID: 11025476

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  25-BD-012H TSB

  Date Added:

  November 12, 2025

  Manufacturer:

  HYUNDAI

  Summary

  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.

  Associated Products (327)

  2026 Genesis G702026 Genesis G802026 Genesis G902026 Genesis GV702026 Genesis GV802026 Hyundai Ioniq 92026 Hyundai Kona2026 Hyundai Palisade2026 Hyundai Santa Cruz2026 Hyundai Santa Fe2026 Hyundai Sonata2026 Hyundai Tucson2026 Hyundai Venue2025 Genesis G702025 Genesis G802025 Genesis G902025 Genesis GV602025 Genesis GV702025 Genesis GV802025 Hyundai Elantra+ 307 more
  Associated Documents

  • DownloadMC-11025476-0001.pdf↗