Genesis Recall for Sudden Unintended Braking

Hyundai Motor America (HMA) is recalling ~ 500 model year 2023-2026 G90 vehicles in Silver paint for a defect in the semi-autonomous driving system that causes sudden braking. (Read AutoInformed.com on: IP Software Failure – Hyundai Recalls Genesis Models)

“The subject vehicles are equipped with Highway Drive Assist (“HDA”), an advanced driving assistance system that allows semi-autonomous driving on limited-access highways with continuous, direct supervision by the driver. The vehicles may falsely detect another vehicle entering its lane of travel and apply the brakes without warning when HDA is enabled at speeds below approximately 12 mph or when HDA is enabled along with the Lane Change Assist (“LCA”) feature, activated by the driver moving the turn signal lever to the desired direction to change lanes,” HMA said  in the required safety defect recall filing made public by the National Highway Traffic Safety Administration (NHTSA) today.

“For vehicles in the Savile Silver exterior color, the front corner radar signals may reflect off the Aluminum content in the silver bumper cover paint and pass through the front bumper beam. Theses signals may be registered as an object in the opposing lane and can potentially affect Highway Driving Assist (HDA) operation,” HMA said.

Chronology

  • February 27, 2025: HMNA received a field report indicating a false vehicle detection condition while using the HDA feature on a model year 2024 G90 vehicle in the U.S. market. HMNA’s North America Safety Office (“NASO”) begins monitoring field information for emerging trends of similar reports.
  • April 24, 2025: NASO initiated a new investigation into the subject condition and began tracking and analyzing market field information.
  • May 15, 2025 to July 28, 2025: NASO reviewed U.S. market field data and worked to recover components from field vehicles. NASO conducted testing of warranty part returns and replicated the false detection only on Savile silver painted bumper covers.
  • August through early October 2025: NASO requested manufacturing records to confirm aluminum content differences by color and reviewed the data acquired by NASO’s testing with HMC R&D. As a result, HMC confirmed that only the silver paint (paint code: SSS) contained a significant amount of aluminum, which could scatter the radar signal.
  • October 17, 2025: NASO reviewed the investigation status with the National Highway Transportation Safety Administration’s Office of Defect Investigations.
  • October 23, 2025 – October 30,2025: NASO installed silver painted bumper covers on an internal vehicle and conducted duplication testing to understand braking severity under various scenarios. NASO provided the testing data to HMC R&D and requested detailed logic and analysis of the various scenarios identified during the testing.
  • November 11, 2025: HMC R&D provided an analysis of the radar transmission mechanism and the extent of braking that may occur when using the LCA feature and without the LCA feature at low speed (<12 MPH) if the vehicle falsely detects another vehicle entering its lane of travel.
  • November 21, 2025: NASO convened it’s North America Safety Decision Authority (“NASDA”) to review its findings and decided to conduct a safety recall of potentially affected U.S. market vehicles. As of the date of this filing, HMNA is aware of 11 unique reports of HDA false detection received from April 24, 2023, through April 2, 2025, from affected vehicles in the U.S. market.

About Ken Zino

Ken Zino, editor and publisher of AutoInformed, is a versatile auto industry participant with global experience spanning decades in print and broadcast journalism, as well as social media. He has automobile testing, marketing, public relations and communications experience. He is past president of The International Motor Press Assn, the Detroit Press Club, founding member and first President of the Automotive Press Assn. He is a member of APA, IMPA and the Midwest Automotive Press Assn. He also brings an historical perspective while citing their contemporary relevance of the work of legendary auto writers such as Ken Purdy, Jim Dunne or Jerry Flint, or writers such as Red Smith, Mark Twain, Thomas Jefferson – all to bring perspective to a chaotic automotive universe. Above all, decades after he first drove a car, Zino still revels in the sound of the exhaust as the throttle is blipped during a downshift and the driver’s rush that occurs when the entry, apex and exit points of a turn are smoothly and swiftly crossed. It’s the beginning of a perfect lap. AutoInformed has an editorial philosophy that loves transportation machines of all kinds while promoting critical thinking about the future use of cars and trucks. Zino builds AutoInformed from his background in automotive journalism starting at Hearst Publishing in New York City on Motor and MotorTech Magazines and car testing where he reviewed hundreds of vehicles in his decade-long stint as the Detroit Bureau Chief of Road & Track magazine. Zino has also worked in Europe, and Asia – now the largest automotive market in the world with China at its center.
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