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Genesis · Known Issues

2023 Genesis G90 Problems: 10 Known Issues

2023 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026

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Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 Genesis G90 has 10 documented known issues, with 7 rated critical. The most serious are Blank instrument cluster on startup due to LG software logic error ($0-$0 repair), Fuel crossover pipe leaks at engine rail (under-torqued fasteners) - fire risk ($0-$0 repair), Low-pressure fuel pump impeller deforms in heat, causing stalling (NHTSA Recall 24V282000) ($0-$0 repair), Savile Silver paint reflects corner radar, triggering phantom automatic emergency braking (Highway Drive Assist) ($0-$0 repair), Seat-belt pretensioner over-pressurization can rupture and eject metal fragments ($0-$0 repair), Front seat belt snap-on anchors can detach from the seat frame ($0-$0 repair) and Intermittent dashboard warning cascade with electronic parking brake lockout ($400-$2,500 repair). Across all issues with published estimates, repair costs range from $250 to $2,500. DIY maintenance guides at au7o.io.

In This Article

  • G90 Safety/Recalls3
  • G90 Electrical3
  • G90 Fuel System2
  • G90 Interior1
  • G90 Exterior1
  • Recalls7
  • FAQ
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In This Article

  • Safety/Recalls3
  • Electrical3
  • Fuel System2
  • Interior1
Exterior1
  • Recalls7
  • FAQ

    • All 10 Known Issues

    Filter:
    ALL YEARS2026202520242023202220212020201920182017

    On the 2023-2026 Genesis G90 3.5L Twin-Turbo V6 (Smartstream), on G90s painted in Savile Silver, the aluminum-heavy paint formulation at the corners of the front bumper cover reflects the corner-radar signal back into the sensor. Highway Drive Assist (HDA) interprets the reflection as a vehicle cutting into the lane and applies sudden, unintended braking — reported at low speed (below ~12 mph) and when Lane Change Assist is active. Only Savile Silver cars are affected. Covered by NHTSA Recall 25V833 (483 U.S. vehicles).

    Common Symptoms

    • Sudden unintended braking
    • Phantom emergency braking with no obstacle
    • False forward-collision alerts
    • Braking when Lane Change Assist engaged

    How to Fix

    Under recall 25V833 a certified Genesis technician seals the front bumper beam so the radar signal is not transmitted through the body panel to strike the paint. Free of charge. As an interim measure owners can disable HDA/forward-collision-assist braking if experiencing phantom braking, and confirm the bumper-beam remedy has been applied.

    Find a Genesis dealer

    Choose to share your location for this search, or enter an area below. Your search location is sent to Google to find dealers.

    Open Genesis dealer map in Google Maps ↗

    Call to confirm they service Genesis vehicles and check your VIN, recall eligibility, parts availability, and appointment options.

    Typical repair cost:$0 - $0

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Community Reported
    Medium ConfidenceVerifiedReviewed Jul 2026

    On the 2023 Genesis G90 3.5L twin-turbo GDI V6, on the 2023 G90, the front driver, front passenger, and rear seat-belt pretensioners can over-pressurize when they deploy in a crash. The micro-gas-generator pretensioner pipe may rupture, causing abnormal deployment that sprays metal fragments into the cabin and risks injuring occupants. This is the same defective pyrotechnic pretensioner family behind a broader Genesis/Hyundai action; the G90-specific slice is NHTSA recall 23V210 (Genesis campaign 013G), covering roughly 575 units built April 21, 2022 through February 21, 2023. It is a restraint-system safety defect entirely separate from the electrical, fuel, and drivetrain issues catalogued elsewhere. At filing, Genesis was not aware of any real-world abnormal deployment incidents.

    Common Symptoms

    • No pre-crash symptoms - latent defect only manifests during pretensioner deployment in a collision
    • Potential for metal fragments/shrapnel in the cabin after belt/airbag deployment

    How to Fix

    Dealers install a securing cap on the seat-belt pretensioners so that, even if a pretensioner over-deploys, the assembly is contained and cannot fling metal fragments into the occupant space. The remedy is performed free of charge; owner notification letters were mailed in May 2023.

    Typical repair cost:$0 - $0

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Community Reported
    High ConfidenceVerifiedReviewed Jul 2026

    On the 2023-2026 Genesis G90, on second-generation G90s, the driver and front passenger seat belts attach to the seat frame through a snap-on anchor that can break, so the anchor does not securely fasten the belt to the structure. If the anchor separates in a crash the belt cannot restrain the occupant, which defeats the restraint entirely at the moment it matters. This is a different defect from the earlier pretensioner over-pressurization problem - nothing ruptures or fires here; the load path simply comes apart at the seat-frame end. Hyundai and Genesis covered roughly 294,000 vehicles across several nameplates in this action, with the 2023-2026 G90 among them, so late-model and even current cars are in scope and many are still in owners' hands unremedied.

    Common Symptoms

    • Seat belt lower anchor feels loose or moves at the seat frame
    • Belt webbing sits abnormally or the buckle stalk shifts
    • Rattle or clunk from the base of the seat belt
    • No warning light - the defect is usually silent

    How to Fix

    Free recall remedy under NHTSA campaign 26V218000. Genesis retailers inspect the driver and front passenger seat belt anchors and reinforce or replace them as necessary at no charge; owner notification letters were mailed beginning May 29, 2026 and affected VINs became searchable on nhtsa.gov in April 2026. Enter the VIN at nhtsa.gov/recalls to confirm status - a used-car purchase completed before the notification date will not have been contacted. There is no safe interim workaround: an anchor that has already snapped cannot be detected by the occupant, so schedule the inspection rather than waiting for a symptom.

    Typical repair cost:$0 - $0

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Community Reported
    High ConfidenceVerifiedReviewed Aug 2026

    On the 2023-2025 Genesis G90, a software bug supplied by LG Electronics in the digital instrument cluster causes the entire IP display to go blank at startup on 2023-2025 G90s built Apr 21, 2022 - Apr 7, 2025. With no speedometer, warnings, or system status visible, the condition violates FMVSS 101. Genesis recall 027G / NHTSA campaign covers 2,345 G90 units (part of a 4,754-vehicle total with GV60).

    Common Symptoms

    • blank instrument cluster at startup
    • no speedometer
    • missing warning lights
    • intermittent display dropout

    How to Fix

    Recall 027G: free OTA software update pushed to the cluster, or a dealer flash if OTA fails. If your cluster is blank, do not drive — pull over, key-cycle, and contact Genesis at 844-340-9741 (reference recall 027G). Owner notification letters were mailed no later than September 15, 2025.

    Typical repair cost:$0 - $0

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Community Reported
    High ConfidenceVerifiedReviewed Jun 2026

    On the 2023 Genesis G90, multiple 2023 G90 owners report sudden 'dashboard lit up like a Christmas tree' events: every warning light illuminates, a 'STOP ENGINE / check brake system' message appears, and the electronic parking brake refuses to release, stranding the vehicle. One documented dealer diagnosis was a shorted main sensor, but the fault is intermittent and recurred one week after repair. Separate 2023 G90 electrical complaints (dead battery, door handles not deploying) suggest a broader pattern of low-voltage / sensor faults on the new RS4 generation.

    Common Symptoms

    • all dashboard warning lights illuminate simultaneously
    • STOP ENGINE / check brake system message
    • electronic parking brake malfunction
    • vehicle may be immobilized
    • intermittent re-occurrence after sensor replacement
    • associated parasitic battery drain
    • associated false TPMS warnings

    How to Fix

    Document every occurrence with date, mileage, and a photo of the cluster. Demand a parasitic-draw test and scan of all CAN modules. If the fault recurs after sensor replacement (commonly the body-control or yaw module), escalate to Genesis case management — multiple owners have qualified for lemon-law buyback once events exceed 30 days down or 3+ repair attempts.

    Typical repair cost:$400 - $2,500

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Community Reported
    Low ConfidenceVerifiedReviewed Jun 2026

    On the 2017-2023 Genesis G90, owners across model years report the 12V battery going flat after the car sits a few days. A common documented culprit is the radio/head unit continuing to draw current after shutdown, along with other parasitic draws that exceed the normal <50 mA key-off current. Leaving the key fob near the car can compound it. Frequent deep discharges shorten battery life and can leave the car unable to start.

    Common Symptoms

    • Dead battery after sitting a few days
    • Slow cranking / no-start
    • Repeated jump-starts
    • Battery drains overnight
    • Electronics stay awake after lock

    How to Fix

    Measure key-off parasitic draw with a clamp/multimeter (target under ~50 mA); pull fuses to isolate the offending circuit. Where the head unit is the source, dealers have replaced it under warranty. Replace a degraded battery, keep the fob away from the vehicle when parked, and use a maintainer for cars that sit.

    What you need to fix it

    Only diagnosis- and fitment-reviewed repair parts are linked here.

    • Smart battery maintainer / tender (AGM-compatible)
      Cross-refNOCO GENIUS5 (5A, 6/12V, AGM & lithium modes), NOCO GENIUS1 (1A, budget option)$30–$80

      Universal accessory, not vehicle-specific. Recommended by the documented fix for cars that sit several days; must have an AGM charge profile to match the G90's AGM battery.

      Amazon

    As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

    Typical repair cost:$250 - $1,500

    Research This Issue

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    Community Reported
    Medium ConfidenceVerifiedReviewed Jul 2026

    On the 2023-2025 Genesis G90 3.5L twin-turbo GDI V6 (Lambda III), on the second-generation 3.5L twin-turbo G90, the retention fasteners on the fuel crossover pipe at the fuel-rail connections were tightened during assembly with an insufficient concentration of thread/torque stabilizer (thread retainer). Over time the fasteners can gradually loosen, allowing gasoline to seep from the crossover pipe joints. Fuel leaking near hot engine components creates an engine-fire hazard. This is a manufacturing/assembly-torque defect covered by NHTSA recall 26V229 (Genesis campaign 033G). It affects 4,231 G90 units within a larger ~94,760-vehicle Genesis action (G80/GV80/GV70 also covered), part of a combined ~235,000-unit Kia-Genesis fuel-leak action. It is a fuel-delivery-rail failure distinct from the low-pressure fuel-pump impeller recall and the turbo oil-feed-pipe fire recall.

    Common Symptoms

    • Fuel odor around the engine bay or under the hood
    • Fuel stains/wet residue near the fuel rail
    • Risk of engine-compartment fire

    How to Fix

    Under recall, dealers inspect the fuel crossover pipe and its fasteners, re-tighten them to spec with the correct torque stabilizer, and replace the fuel pipe if a leak or damage is found - free of charge regardless of warranty status, with reimbursement for prior out-of-pocket repairs. NHTSA advises parking outside and away from structures until the repair is done. VINs became searchable on NHTSA.gov April 11, 2026 and owner letters were mailed June 8, 2026.

    Find a Genesis dealer

    Choose to share your location for this search, or enter an area below. Your search location is sent to Google to find dealers.

    Open Genesis dealer map in Google Maps ↗

    Call to confirm they service Genesis vehicles and check your VIN, recall eligibility, parts availability, and appointment options.

    Typical repair cost:$0 - $0

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Community Reported
    High ConfidenceVerifiedReviewed Jul 2026

    On the 2022-2023 Genesis G90, per NHTSA Recall 24V282000 / Genesis 022G, low-pressure fuel pump assemblies in ~1,364 G90 sedans (2022-2023 MY, built Jun 2, 2021 - Sep 14, 2022) may contain impellers that deform under high ambient/underhood temperatures, causing mechanical interference with the pump housing and shutdown. Affects both 1st-gen (3.3T Lambda / 5.0L V8) 2022 G90s and 2nd-gen (3.5T Smartstream) 2023 G90s — two distinct pump part numbers in the recall (31110-D2000 Theta-family applicator and 31110-T1050 Lambda-family applicator across the campaign).

    This issue also affects: Genesis G70, Genesis GV70, Genesis GV80

    Common Symptoms

    • check engine light
    • engine hesitation
    • rough running
    • sudden stall while driving
    • no-start after heat soak

    How to Fix

    Recall 022G (NHTSA 24V282000): Genesis dealer inspects and replaces the low-pressure fuel pump assembly free of charge. Owner notification mailed June 18, 2024. Check VIN at nhtsa.gov/recalls or call Genesis at 1-855-371-9460. Do not delay — a sudden fuel pump shutdown in traffic increases crash risk.

    Typical repair cost:$0 - $0

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Community Reported
    High ConfidenceVerifiedReviewed Jun 2026

    On the 2019-2024 Genesis G90, on rear-seat-package G90s - the Ultimate and Prestige rear entertainment/executive rear seat configurations, and the second-generation 2023-plus cars - the rear-console touchscreen and the rear seat adjustment controls stop responding together. Because the rear display, the rear climate and audio controls and the rear seat motors share the console harness and control module in the center tunnel, one failure takes all of them out at once, which is the diagnostic tell that separates this from a front-infotainment software freeze. A 2023 owner reported the rear LED screen failing and the repair taking three weeks because the technicians had to remove both rear seats, the tunnel and the rear console to reach the harness and module. It is not a safety defect, but it disables the feature set that most justifies the trim's price.

    Common Symptoms

    • Rear console touchscreen black or unresponsive
    • Rear seat power adjustment does not work
    • Rear climate and audio controls dead at the same time
    • Rear screens work intermittently after a battery disconnect

    How to Fix

    Confirm the rear display is enabled, perform the documented head-unit reset and test the correct fuses. If the screen and seat controls remain dead together, diagnose the console harness and rear control module; teardown, programming and part identity are VIN-dependent.

    Typical repair cost:$0 - $2,500

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Community Reported
    Low ConfidenceVerifiedReviewed Aug 2026

    On the 2017-2023 Genesis G90, water vapor accumulates inside the sealed headlamp assemblies and condenses on the inside of the lens, most often on one side only and worst after rain or a car wash. On the G90 and its Genesis siblings this is more than a cosmetic fog: because the units are full LED with sealed projector and DRL modules, standing moisture attacks the reflector coating over time, producing permanent pitting and discoloration that dims the beam, and in some reported cases water reaches the LED driver and kills a function outright, showing up as a dead low beam or a hyper-flashing turn signal. Owners across the Genesis forums report the same behavior on multiple models, and dealers frequently deflect it as normal venting behavior until it is documented as persistent.

    Common Symptoms

    • Fog or water droplets on the inside of the headlight lens
    • Condensation reappears after every rain or car wash
    • Dim or hazy beam pattern
    • Low beam or DRL out on one side, or fast-flashing turn signal

    How to Fix

    Run the prescribed high-beam clearing test and document persistent droplets, standing water, reflector damage or function loss. A replacement full-LED assembly is side-, option- and VIN-specific and requires aiming, so no generic lamp is approved.

    Typical repair cost:$0 - $2,500

    Research This Issue

    GoogleRedditYouTubeNHTSA
    Community Reported
    Low ConfidenceVerifiedReviewed Aug 2026
    NHTSA Recalls7 recalls

    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.

    Campaign #26V22900010/04/2026

    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.

    Campaign #26V21800006/04/2026

    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.

    Campaign #25V83300002/12/2025

    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."

    Campaign #25V47400017/07/2025

    ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

    Hyundai Motor America (Hyundai) is recalling certain 2018-2020 Genesis G80, 2017-2022 G90, and 2019-2022 G70 vehicles equipped with a 3.3-liter V6 turbocharged engine. The left turbocharger oil feed pipe may deteriorate and leak oil.

    Campaign #24V19100008/03/2024

    + 2 more recalls. Check all on NHTSA.gov

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    Frequently Asked Questions

    What are the most common Genesis G90 problems?

    According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2023 Genesis G90 has 10 documented issues. The most frequently reported are: Blank instrument cluster on startup due to LG software logic error, Fuel crossover pipe leaks at engine rail (under-torqued fasteners) - fire risk, Low-pressure fuel pump impeller deforms in heat, causing stalling (NHTSA Recall 24V282000). Of these, 7 are rated critical and should be addressed promptly.

    Is the Genesis G90 reliable?

    The 2023 Genesis G90 has 10 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 7 issues are rated critical: Blank instrument cluster on startup due to LG software logic error and Fuel crossover pipe leaks at engine rail (under-torqued fasteners) - fire risk and Low-pressure fuel pump impeller deforms in heat, causing stalling (NHTSA Recall 24V282000) and Savile Silver paint reflects corner radar, triggering phantom automatic emergency braking (Highway Drive Assist) and Seat-belt pretensioner over-pressurization can rupture and eject metal fragments and Front seat belt snap-on anchors can detach from the seat frame and Intermittent dashboard warning cascade with electronic parking brake lockout. 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.

    How much does it cost to fix common Genesis G90 problems?

    Repair costs for known Genesis G90 issues range from $0 to $2,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Blank instrument cluster on startup due to LG software logic error, typically costs $0-$0 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

    What is the 2023-2025 Genesis G90 Blank instrument cluster on startup due to LG software logic error?

    A software bug supplied by LG Electronics in the digital instrument cluster causes the entire IP display to go blank at startup on 2023-2025 G90s built Apr 21, 2022 - Apr 7, 2025. With no speedometer, warnings, or system status visible, the condition violates FMVSS 101. Genesis r… Repairs typically run $0-$0. Severity: high.

    What is the 2023-2025 Genesis G90 Fuel crossover pipe leaks at engine rail (under-torqued fasteners) - fire risk?

    On the second-generation 3.5L twin-turbo G90, the retention fasteners on the fuel crossover pipe at the fuel-rail connections were tightened during assembly with an insufficient concentration of thread/torque stabilizer (thread retainer). Over time the fasteners can gradually loo… Repairs typically run $0-$0. Severity: high.

    What is the 2022-2023 Genesis G90 Low-pressure fuel pump impeller deforms in heat, causing stalling (NHTSA Recall 24V282000)?

    Per NHTSA Recall 24V282000 / Genesis 022G, low-pressure fuel pump assemblies in ~1,364 G90 sedans (2022-2023 MY, built Jun 2, 2021 - Sep 14, 2022) may contain impellers that deform under high ambient/underhood temperatures, causing mechanical interference with the pump housing an… Repairs typically run $0-$0. Severity: high.

    What is the 2023-2026 Genesis G90 Savile Silver paint reflects corner radar, triggering phantom automatic emergency braking (Highway Drive Assist)?

    On G90s painted in Savile Silver, the aluminum-heavy paint formulation at the corners of the front bumper cover reflects the corner-radar signal back into the sensor. Highway Drive Assist (HDA) interprets the reflection as a vehicle cutting into the lane and applies sudden, unint… Repairs typically run $0-$0. Severity: high.

    What is the 2023 Genesis G90 Seat-belt pretensioner over-pressurization can rupture and eject metal fragments?

    On the 2023 G90, the front driver, front passenger, and rear seat-belt pretensioners can over-pressurize when they deploy in a crash. The micro-gas-generator pretensioner pipe may rupture, causing abnormal deployment that sprays metal fragments into the cabin and risks injuring o… Repairs typically run $0-$0. Severity: high.

    What is the 2023-2026 Genesis G90 Front seat belt snap-on anchors can detach from the seat frame?

    On second-generation G90s, the driver and front passenger seat belts attach to the seat frame through a snap-on anchor that can break, so the anchor does not securely fasten the belt to the structure. If the anchor separates in a crash the belt cannot restrain the occupant, which… Repairs typically run $0-$0. Severity: high.

    What is the 2023 Genesis G90 Intermittent dashboard warning cascade with electronic parking brake lockout?

    Multiple 2023 G90 owners report sudden 'dashboard lit up like a Christmas tree' events: every warning light illuminates, a 'STOP ENGINE / check brake system' message appears, and the electronic parking brake refuses to release, stranding the vehicle. One documented dealer diagnos… Repairs typically run $400-$2,500. Severity: high.

    What is the 2017-2023 Genesis G90 Repeated 12V battery drain / dead battery from head unit and modules drawing power when parked?

    Owners across model years report the 12V battery going flat after the car sits a few days. A common documented culprit is the radio/head unit continuing to draw current after shutdown, along with other parasitic draws that exceed the normal <50 mA key-off current. Leaving the key… Repairs typically run $250-$1,500. Severity: medium.

    What is the 2019-2024 Genesis G90 Rear-console LCD and rear seat controls go dead, requiring a teardown of the rear seats and tunnel console?

    On rear-seat-package G90s - the Ultimate and Prestige rear entertainment/executive rear seat configurations, and the second-generation 2023-plus cars - the rear-console touchscreen and the rear seat adjustment controls stop responding together. Because the rear display, the rear… Repairs typically run $0-$2,500. Severity: low.

    What is the 2017-2023 Genesis G90 Moisture and condensation collect inside the LED headlamp housings, eventually pitting the reflectors?

    Water vapor accumulates inside the sealed headlamp assemblies and condenses on the inside of the lens, most often on one side only and worst after rain or a car wash. On the G90 and its Genesis siblings this is more than a cosmetic fog: because the units are full LED with sealed… Repairs typically run $0-$2,500. 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.

    Data compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.