2018 model year · 0+ owner reports · Updated April 2026
According to Au7o's analysis of 0+ owner reports, the 2018 Genesis G90 has 2 documented known issues, with 1 rated critical. The most serious is Air Suspension Strut and Compressor Failure ($1,500-$5,000 repair). Across all issues, repair costs range from $100 to $5,000. DIY maintenance guides at au7o.io.
On the 2017-2026 Genesis G90, the G90 air suspension system is prone to strut leaks and compressor failure, particularly after 60,000 miles. The rubber air bladders in the struts develop cracks, causing the vehicle to sag overnight and the compressor to overwork.
Replace leaking air struts and the compressor as a set. Inspect all air lines for cracks and deterioration. The system should be calibrated after component replacement. Consider an extended warranty to cover these expensive repairs.
On the 2017-2026 Genesis G90, aWD G90 models can produce a whining or humming noise from the rear differential, particularly during low-speed turns and AWD engagement transitions. The e-LSD clutch pack engagement can produce audible noise during operation.
Change the rear differential fluid using Hyundai/Genesis-approved gear oil with LSD additive. If noise persists, the e-LSD clutch pack may need inspection. The noise is often more pronounced in cold weather.
FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
Hyundai Motor America (Genesis) is recalling certain Genesis 2022-2026 GV70, 2023-2025 G90, 2021-2025 G80, and GV80 vehicles. Fuel may leak at the pipe connection between the fuel pipe and fuel rail.
SEAT BELTS:FRONT:ANCHORAGE
Hyundai Motor America (Hyundai) is recalling certain 2023-2025 Hyundai Ioniq 6, 2023-2026 Genesis G90, 2024-2026 Hyundai Santa Fe, and Hyundai Santa Fe Hybrid vehicles. The driver and passenger seat belt anchors may detach.
ELECTRICAL SYSTEM:ADAS
Hyundai Motor America (Hyundai) is recalling certain 2023-2026 Genesis G90 vehicles. The Highway Drive Assist (HDA) corner radar may falsely detect another vehicle, which can result in sudden, unintended braking while driving.
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
Hyundai Motor America (Hyundai) is recalling certain Genesis 2023-2025 G90 and GV60 vehicles. Due to a software error, the instrument panel display may fail. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 101, "Controls and Displays."
SEAT BELTS:FRONT
Hyundai Motor America (Hyundai) is recalling certain 2023 Genesis G90 vehicles. In the event of a crash, the front driver-side, passenger-side, and rear seat belt pretensioners may explode upon deployment.
+ 2 more recalls. Check all on NHTSA.gov
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According to Au7o's analysis of 0+ owner reports, the 2018-2018 Genesis G90 has 2 documented issues. The most frequently reported are: Air Suspension Strut and Compressor Failure, Electronic Limited-Slip Differential Noise. Of these, 1 is rated critical and should be addressed promptly.
The 2018-2018 Genesis G90 has 2 known issues documented across 0+ owner reports. 1 issue is rated critical: Air Suspension Strut and Compressor Failure. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Repair costs for known Genesis G90 issues range from $100 to $5,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Air Suspension Strut and Compressor Failure, typically costs $1,500-$5,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
The G90 air suspension system is prone to strut leaks and compressor failure, particularly after 60,000 miles. The rubber air bladders in the struts develop cracks, causing the vehicle to sag overnight and the compressor to overwork. Repairs typically run $1,500-$5,000. Severity: high.
AWD G90 models can produce a whining or humming noise from the rear differential, particularly during low-speed turns and AWD engagement transitions. The e-LSD clutch pack engagement can produce audible noise during operation. Repairs typically run $100-$600. Severity: low.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
