According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2017-2026 Genesis G90 has 26 documented known issues, with 12 rated critical. The most serious are Intermittent dashboard warning cascade with electronic parking brake lockout ($400-$2,500 repair), Air suspension failures — leaking air struts/bags, compressor burnout and rear sag ($800-$4,000 repair), 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), Left turbocharger oil feed pipe cracks and leaks oil onto exhaust manifold, causing engine-compartment fire ($0-$800 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).
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
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2017-2026 Genesis G90 has 26 documented issues. The most frequently reported are: Intermittent dashboard warning cascade with electronic parking brake lockout, Air suspension failures — leaking air struts/bags, compressor burnout and rear sag, Blank instrument cluster on startup due to LG software logic error. Of these, 12 are rated critical and should be addressed promptly.
Is the Genesis G90 reliable?
The 2017-2026 Genesis G90 has 26 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 12 issues are rated critical: Intermittent dashboard warning cascade with electronic parking brake lockout and Air suspension failures — leaking air struts/bags, compressor burnout and rear sag and 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 Left turbocharger oil feed pipe cracks and leaks oil onto exhaust manifold, causing engine-compartment fire 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 Water intrusion into starter solenoid causes electrical short and engine-compartment fire and Windshield and rear window bonded with incorrect primer, glass can detach in motion and Front seat belt snap-on anchors can detach from the seat frame and Transmission drops itself into Neutral when Reverse is selected, leaving the car with no drive. 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 $4,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Intermittent dashboard warning cascade with electronic parking brake lockout, typically costs $400-$2,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
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.
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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.
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.
Water can enter the starter solenoid and cause an electrical short, which may lead to an engine-compartment fire while the vehicle is parked or being driven. Genesis instructed owners to park outside and away from structures until repaired. Covered by NHTSA Recall 24V107 (Hyundai/Genesis campaigns 018G and 254(H)); owner notification letters were mailed July 15, 2024.
Common Symptoms
Burning/electrical smell
Smoke from engine bay
Blown starter fuse
No-start
Under-hood fire while parked
How to Fix
Under recall 24V107, dealers install a remedy relay kit in the engine junction box that de-energizes the starter circuit when the engine is running, preventing solenoid overheating/short — performed free of charge. No customer parts purchase required; verify the relay kit was installed if buying used.
The DIS infotainment/navigation head unit intermittently freezes, becomes unresponsive, or displays a blank screen — including a 'Navigation Activation in Progress' message that leaves the map unavailable. It can also drop Bluetooth/connectivity. Distinct from the second-gen instrument-cluster software recall; this is the center-stack head unit on first-gen cars.
Common Symptoms
Frozen/unresponsive touchscreen
Blank center display
'Navigation Activation in Progress' stuck message
Bluetooth/USB dropouts
System reboots on its own
How to Fix
Soft-reboot by holding the MAP and SETUP hard buttons together until the screen goes black and the Genesis logo appears (or hold power 10-15s). Apply the latest navigation/firmware update via dealer or USB. Persistent cases have been resolved by head-unit software reflash or replacement under warranty; a battery-cable disconnect can clear a stuck boot.
First-generation G90 owners, overwhelmingly on HTRAC all-wheel-drive cars, report a rhythmic highway-speed vibration felt through the steering wheel and seat between roughly 60 and 80 mph that survives new tires, road-force balancing, new rotors and alignment. Forum diagnosis on the owners' group converged on an electronic root cause distinct from the usual wheel-balance story: the combined yaw rate / lateral / longitudinal G-sensor module mounted under the front console (part 95910-D2000) drifts and feeds false motion data to the ESC and HTRAC controllers. The stability system then pulses individual brakes and continuously shuffles front-to-rear torque to correct a yaw that isn't happening, and the driver feels that as a steady vibration. The tell is that the shake persists after every mechanical remedy and is speed-dependent rather than tire-dependent. This is a distinct failure from ordinary wheel imbalance and from the body's own resonance, and dealers frequently chase tires for months because the sensor throws no stored fault code.
Common Symptoms
Rhythmic steering wheel and seat vibration between 60 and 80 mph
Shake returns shortly after new tires, balancing or new rotors
Vibration disappears when ESC is switched off
No stored diagnostic trouble codes
Sensation of the car 'hunting' or self-correcting on a straight road
How to Fix
Do not publish a buy link yet. Verify wheel/tire road-force balance, driveshaft and hub condition, then compare live yaw and acceleration data. The proposed 95910-D2000 number is cataloged by OEM sellers as the airbag control module, not a safe retail identification of the claimed yaw/G-sensor repair; the issue copy and source bulletin must be reconciled first.
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.
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.
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.
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.
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.
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.
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).
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.
A small batch of 2018 Genesis G90 sedans left the plant with the wrong primer applied during windshield and backlight installation. The wrong primer chemistry does not properly activate the urethane bond, so the adhesive never reaches full bonding strength to the glass or the pinch weld. Over time, and especially under body flex, thermal cycling or a crash load, the windshield or rear window can separate from the body. Because the bonded windshield is a structural member on a unibody sedan (it supports the roof in a rollover and backs up the passenger airbag), a weak bond is a crashworthiness defect, not just a leak risk. Genesis identified the affected build window by VIN; the population is very small (approximately 37 vehicles), which is why almost no owner ever hears about it, but any 2018 G90 should be VIN-checked because an unremedied car has a windshield that can leave at speed.
Common Symptoms
Wind noise or whistling around the top or sides of the windshield
Water leaking into the headliner or onto the A-pillar trim
Creaking or popping from the glass over bumps
Visible gap or lifted edge at the windshield or rear glass molding
How to Fix
Free recall remedy under NHTSA campaign 18V305000 (Hyundai/Genesis internal code 001G): the Genesis retailer cuts out and replaces both the front windshield and the rear window using the correct primer and urethane, at no charge and with no mileage or time limit. Check the VIN on nhtsa.gov/recalls before assuming it was done, because a prior aftermarket glass replacement does not close the campaign in Genesis's system. If the glass has already been replaced outside the dealer network, insist that the shop used the OEM-specified primer system; a re-bond done with the correct primer restores structural strength.
First-generation (DH) G90 sedans with the large panoramic glass roof commonly develop creaks, rattles and squeaks from the roof/headliner area, plus wind-noise vibration over the glass. Root causes owners and dealers have found include sunroof frame/track attachment bolts that back off or were under-torqued from the factory (one documented case found 32 loose bolts), plus metal-on-metal contact in the frame. Genesis addresses the noise complaints with TSB 23-BD-014G. Note: some owners also report spontaneous panoramic-glass shattering (a known Hyundai/Kia glass-roof failure mode), but that is less well documented specifically on the G90 and coverage is often disputed absent proven breakage.
Common Symptoms
Creaking/squeaking from the roof or headliner over bumps
Rattling or buzzing from the sunroof glass area
Excessive wind noise or vibration at highway speed
Loud bang and glass falling into cabin (spontaneous glass shatter, less common)
How to Fix
Per TSB 23-BD-014G, install the sunroof felt/anti-noise kit (adds felt padding and lubricant to stop metal-on-metal movement) and fit modified sunroof frame bolts torqued to spec; loose factory bolts are re-torqued. In stubborn cases the roof/sunroof frame assembly is replaced. For a shattered glass panel, the sunroof glass or full assembly is replaced.
The G90's power soft-close doors use a motorized cinching latch that pulls a door held at the first detent fully shut. On first-generation cars this system fails one door at a time: the cinch motor stops running, so the door sits visibly proud and the ajar warning stays lit until the door is slammed manually, or in the worse version the latch actuator sticks and the door will not open at all from inside or out. Owners on the Genesis forums report it appearing intermittently on a front passenger door, being fixed under warranty, then reappearing on a different door - which points to a component-level failure of the latch/actuator assembly rather than a one-off. A dead cinch motor is an annoyance, but a latch that will not release is a genuine egress problem for a rear passenger.
Common Symptoms
Door will not pull itself fully closed and the ajar light stays on
Soft-close works on some doors but not one specific door
Door will not open from inside or outside
Clicking or buzzing from inside the door when closing
How to Fix
Check the correct 15A circuit and confirm whether the mechanical latch still secures the door. If the latch/actuator is faulty, match the exact door corner, soft-close option, pre-2020 versus 2020-2022 design and VIN; the multiple incompatible branches make one retail link unsafe.
Owners of the power-operated trunk on the first-generation G90 report intermittent failures where the decklid will not fully close and latch when lowered, or will not release and rise when commanded (some report a stick roughly every few openings). The trunk uses a power latch (cinch) module and a power drive (raise/lower) module, either of which can fail or fall out of calibration. Owner and dealer reports indicate lid misalignment is a frequent root cause - striker, rubber stopper and trim adjustment often resolves it - and that simply replacing the latch and drive motor does not always help. Low 12V battery voltage can also cause the symptom. This is a body/closure electromechanical issue distinct from the general parasitic battery-drain complaint.
Common Symptoms
Trunk does not fully close/cinch when lowered
Trunk fails to open or release when the button/fob is pressed
Intermittent, hard-to-reproduce operation (e.g., every few tries)
Trunk-ajar warning despite the lid appearing shut
How to Fix
Dealers typically start by adjusting the striker, bump stops/rubber stoppers and plastic trim to correct alignment, and check the release switch/harness and battery voltage; a full re-charge sometimes restores operation. Where the actuators are actually failed, the power latch assembly and/or power drive unit are replaced and the trunk initialization/re-learn is run. Under warranty the repair is free; out of warranty, actuator/latch parts plus labor typically run several hundred to over a thousand dollars.
Distinct from the panoramic sunroof rattle, first-generation G90 owners report a whistle or roar entering the cabin at the front driver's door - typically from the lower or forward edge of the door glass and the A-pillar area - that becomes obvious above roughly 60 mph. It is glaring on this car precisely because the rest of the cabin is so quiet. The causes documented by owners are the frameless-feel door glass sitting slightly proud in its run channel so it does not fully compress the seal at speed, and door weatherstrip and A-pillar molding that seals inconsistently from the factory. In one documented case a Genesis field representative measured the A-pillar as 10-20 decibels louder than the rest of the car and the company replaced every seal on the vehicle plus an exterior mirror.
Common Symptoms
Whistle or hiss from the driver's front door above 60 mph
Noise louder at the A-pillar than elsewhere in the cabin
Noise changes when pressing on the door glass at speed
Wind noise persists after seal replacement
How to Fix
Use the paper/dollar-bill and removable-tape tests to locate the leak, then adjust the regulator/glass before replacing trim or weatherstrip. Door, side and production-specific seals cannot be selected safely from the broad issue record.
On G90s equipped with the 3.3L twin-turbo V6, the original left-hand turbocharger oil feed pipe and hose assembly was manufactured from a material that becomes brittle after prolonged heat exposure and repeated heat/cool cycling. The pipe cracks and leaks pressurized engine oil directly onto the hot exhaust manifold, dramatically increasing the risk of an under-hood fire. This drove NHTSA Recall 24V191 (Hyundai/Genesis campaign 019G), which expanded and replaced earlier campaign 19V-538. Owners are warned it can ignite whether parked or driving.
Common Symptoms
Burning oil smell
Oil smoke from engine bay
Low oil level
Oil drips/residue near left turbo and exhaust manifold
Fire warning / under-hood fire
How to Fix
Under recall 019G the dealer replaces the left turbo oil feed pipe/hose with an improved, more durable (stainless-reinforced) part free of charge. OEM left oil feed pipe/hose assembly is Hyundai PN 28240-3L100 (service kit references 28240-3L122QQH); inspect for oil weeping at the turbo and manifold, and address any oil-soaked heat shielding at the same time.
The 5.0L Tau V8 is gasoline-direct-injection only (no port injectors to wash the valves), so intake valves accumulate carbon deposits over time, which can cause rough idle, misfire and reduced performance at higher mileage. Some 2018+ owners also report elevated oil consumption (adding oil between changes), though rates are often within Genesis's acceptable spec.
Perform periodic walnut-blast (media) cleaning of the intake valves to remove carbon; use Top Tier 91-93 octane fuel and occasional higher-rpm driving to slow deposit formation, plus an intake-cleaning additive service. Monitor oil consumption with regular level checks between changes; document consumption for warranty if it exceeds spec.
A separate complaint from the harsh-upshift solenoid story: with the car stationary and the brake firmly applied, the driver selects R and the transmission momentarily engages, then the gear indicator flicks to N and the car will not move. It typically clears by cycling back to P and reselecting, but it recurs and it happens in exactly the situation - reversing out of a parking space or driveway - where an unexpected loss of drive is dangerous. Owners on the Genesis forums describe it as intermittent and temperature-related, and it is discussed alongside a related family of shifter faults on first-generation cars where the transmission refuses to leave manual mode or will not take Drive. The behavior points to the shift-by-wire selector and TCM logic rather than to internal hydraulic damage, since the transmission otherwise shifts normally.
Common Symptoms
Gear indicator jumps from R to N with the brake applied
No movement when Reverse is selected
Must shift to Park and reselect to restore drive
Transmission occasionally refuses to take Drive or sticks in manual mode
How to Fix
Scan the TCM and shift-control unit from cold and apply the applicable calibration first. Only after the reflash and repeat diagnosis should a VIN-specific selector or range switch be ordered and programmed.
Owners report harsh, jerky 2-3, 3-4 and 4-5 upshifts, hesitation and a low-speed lurch/jerk on the 8-speed automatic. A subset of 2018 V6 cars reported the transmission slipping toward Neutral from Drive/Reverse. Hyundai/Genesis issued a TSB attributing harsh upshifts to two shift solenoids that were upgraded.
Common Symptoms
Harsh/banging upshifts
Jerk or lurch at low speed
Shift hesitation/flare
Momentary slip toward Neutral (some 2018)
Clunk on acceleration
How to Fix
Have the dealer apply the harsh-shift TSB (upgraded shift solenoids) and perform a transmission adaptive-value reset so the TCM relearns shift points. Verify fluid level/condition. Many owners find Sport mode's shift profile smooths hesitation as an interim workaround.
First-generation G90s use an electronically controlled air suspension that is a recurring high-cost failure point. Owners report pinhole leaks in the air struts/bags, failed leveling (height) sensors, exploded air dryers and burnt-out compressors, producing a saggy or uneven stance, knocking noises over bumps and a harsh ride. Repeated compressor/strut failures can run into the thousands of dollars. Genesis abandoned this air-suspension design on the redesigned G90.
Common Symptoms
Rear or corner sagging
Uneven ride height
Knocking/clunking over bumps
Harsh ride
Compressor runs constantly
Suspension warning message
How to Fix
Diagnose the specific failed component: replace leaking air struts/bags, the compressor (often failing after it runs continuously trying to keep up with a leak), the air dryer, or a faulty height/leveling sensor. A dealer-only suspension ECU reboot/reset can resolve a rear that sags on startup when no leak is present. Fix leaks promptly to avoid killing the compressor.
The wrapped leather dash top on first-generation G90s separates from its substrate and puckers into visible ripples and bubbles. The mechanism is adhesive failure: the leather is stretched over a foam-backed panel and glued, and repeated heat soak breaks down the adhesive until the stretched hide relaxes and lifts. Wrinkles concentrate where the panel has cutouts and edges that concentrate stress - around the head-up display window, over the center and A-pillar speaker grilles, and along the defroster vents. Owners in the community describe it as extremely common on 2017-2019 cars, particularly those parked outdoors in hot or high-UV climates, and note that cold snaps make the wrinkles suddenly obvious. It is cosmetic rather than safety-related, but on a car of this class it is expensive and it materially hits resale.
Common Symptoms
Wrinkles, ripples or bubbles in the leather dash top
Lifted or puckered leather around the head-up display opening
Separation at the dash speaker grille edges
Leather visibly loose when pressed
How to Fix
Document the delamination and pursue the full dash-pad warranty branch while covered. Out of warranty, the practical repair is a qualified upholstery re-wrap or a VIN/color-specific dashboard assembly with extensive labor; a generic cover is not the stated fix.
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.
Coolant weeping/leaks are frequently reported and seen by technicians on first-gen G90s — commonly from the water pump and thermostat housing on the 3.3T, plus O-ring/gasket seepage on the 5.0. Left unaddressed, slow coolant loss risks overheating and cylinder-head damage on the Lambda/Tau V6/V8 family.
Common Symptoms
Low coolant / needing top-offs
Sweet coolant smell
Coolant residue at front of engine
Overheating
Puddle under vehicle
How to Fix
Pressure-test the cooling system to pinpoint the source. Replace the water pump (G90 water pump PN 25100-3F300) and/or thermostat housing with new gaskets; clean and flatten mating surfaces and torque bolts in sequence to spec to avoid a repeat leak. Refill with the correct Hyundai/Genesis long-life coolant and bleed air.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
Water pump (3.3L Twin-Turbo V6, Lambda II)
OEM25100-3L100$105–$463
Do NOT use the V8 number 25100-3F300/3F000 quoted in the fix text on a 3.3T car — that is the Tau V8 pump and will not fit.
5.0 V8 ONLY. The Hyundai catalog lists 25100-3F000 for the 2017-2022 G90 5.0 (DOHC-GDI); 25100-3F300 (the number in the fix text) is listed by HyundaiPartsDeal for the 2008-2014 Genesis 4.6/Tau and by one dealer site for the G90 5.0 — tr…
3.3T ONLY. Latest suffix -3L253 covers all 2017-2022 G90 3.3T; -3L252 / -3L251 are earlier revisions listed only for 2017-2019 and are functionally the same housing.
Thermostat housing assembly (5.0L V8, Tau)
OEM25620-3FAA1$187–$264
5.0 V8 ONLY. Sold as the complete housing assembly for the Tau V8 G90/G80.
G90 owners report a pronounced pedal and steering-wheel pulsation under braking from highway speed, appearing at mileages where a luxury sedan's rotors should still be flat. Owners on the G90-specific forum document rotors replaced repeatedly - one reports four sets since 2018 on very low mileage - with the symptom returning each time. Two mechanisms are argued in the community and both are real: uneven friction-material transfer from the soft, comfort-biased OEM pad compound laying down patchy deposits that read as disc thickness variation, and rotors that do not seat flush on a corroded or debris-contaminated hub face, which forces measurable runout the moment the wheel is torqued. The car's mass and the low-dust, quiet pad choice make it unusually prone to the deposit version. The defining owner frustration is warranty: retailers routinely classify rotors and pads as wear items and refuse coverage even at very low mileage.
Common Symptoms
Steering wheel shudder when braking from highway speed
Pulsating brake pedal
Visible discolored hot spots or rings on the rotor face
Symptom returns within months of new rotors
How to Fix
Measure rotor and hub runout on the vehicle, clean the hub face and distinguish thickness variation/pad deposits from a bent hub. The durable parts choice depends on measured rotor condition, axle configuration and selected pad compound; a pad-only or backordered kit is not approved as the repair.
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.
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.
Reliability varies across model years of the Genesis G90. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2017-2026 Genesis G90 with 26 documented issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports.
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 2017-2022 Genesis G90 Air suspension failures — leaking air struts/bags, compressor burnout and rear sag?
First-generation G90s use an electronically controlled air suspension that is a recurring high-cost failure point. Owners report pinhole leaks in the air struts/bags, failed leveling (height) sensors, exploded air dryers and burnt-out compressors, producing a saggy or uneven stan… Repairs typically run $800-$4,000. Severity: high.
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 2017-2022 Genesis G90 Left turbocharger oil feed pipe cracks and leaks oil onto exhaust manifold, causing engine-compartment fire?
On G90s equipped with the 3.3L twin-turbo V6, the original left-hand turbocharger oil feed pipe and hose assembly was manufactured from a material that becomes brittle after prolonged heat exposure and repeated heat/cool cycling. The pipe cracks and leaks pressurized engine oil d… Repairs typically run $0-$800. 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 2017-2019 Genesis G90 Water intrusion into starter solenoid causes electrical short and engine-compartment fire?
Water can enter the starter solenoid and cause an electrical short, which may lead to an engine-compartment fire while the vehicle is parked or being driven. Genesis instructed owners to park outside and away from structures until repaired. Covered by NHTSA Recall 24V107 (Hyundai… Repairs typically run $0-$300. Severity: high.
What is the 2018 Genesis G90 Windshield and rear window bonded with incorrect primer, glass can detach in motion?
A small batch of 2018 Genesis G90 sedans left the plant with the wrong primer applied during windshield and backlight installation. The wrong primer chemistry does not properly activate the urethane bond, so the adhesive never reaches full bonding strength to the glass or the pin… 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 2017-2020 Genesis G90 Transmission drops itself into Neutral when Reverse is selected, leaving the car with no drive?
A separate complaint from the harsh-upshift solenoid story: with the car stationary and the brake firmly applied, the driver selects R and the transmission momentarily engages, then the gear indicator flicks to N and the car will not move. It typically clears by cycling back to P… Repairs typically run $0-$900. Severity: high.
What is the 2017-2020 Genesis G90 5.0L Tau V8 GDI intake-valve carbon buildup and some oil consumption?
The 5.0L Tau V8 is gasoline-direct-injection only (no port injectors to wash the valves), so intake valves accumulate carbon deposits over time, which can cause rough idle, misfire and reduced performance at higher mileage. Some 2018+ owners also report elevated oil consumption (… Repairs typically run $400-$800. Severity: medium.
What is the 2017-2022 Genesis G90 Coolant leaks from water pump and thermostat housing?
Coolant weeping/leaks are frequently reported and seen by technicians on first-gen G90s — commonly from the water pump and thermostat housing on the 3.3T, plus O-ring/gasket seepage on the 5.0. Left unaddressed, slow coolant loss risks overheating and cylinder-head damage on the… Repairs typically run $350-$900. Severity: medium.
What is the 2017-2020 Genesis G90 8-speed automatic harsh/jerky upshifts and low-speed lurch (solenoid TSB)?
Owners report harsh, jerky 2-3, 3-4 and 4-5 upshifts, hesitation and a low-speed lurch/jerk on the 8-speed automatic. A subset of 2018 V6 cars reported the transmission slipping toward Neutral from Drive/Reverse. Hyundai/Genesis issued a TSB attributing harsh upshifts to two shif… Repairs typically run $0-$1,500. Severity: medium.
What is the 2017-2020 Genesis G90 Infotainment/navigation screen freezes or goes blank, requiring reboot?
The DIS infotainment/navigation head unit intermittently freezes, becomes unresponsive, or displays a blank screen — including a 'Navigation Activation in Progress' message that leaves the map unavailable. It can also drop Bluetooth/connectivity. Distinct from the second-gen inst… Repairs typically run $0-$1,200. Severity: medium.
What is the 2017-2022 Genesis G90 Panoramic sunroof creaking, rattling and wind noise (loose/under-torqued frame bolts)?
First-generation (DH) G90 sedans with the large panoramic glass roof commonly develop creaks, rattles and squeaks from the roof/headliner area, plus wind-noise vibration over the glass. Root causes owners and dealers have found include sunroof frame/track attachment bolts that ba… Repairs typically run $300-$3,000. Severity: medium.
What is the 2017-2022 Genesis G90 Front brake rotors develop pulsation and hot spots at low mileage, and dealers decline it as wear?
G90 owners report a pronounced pedal and steering-wheel pulsation under braking from highway speed, appearing at mileages where a luxury sedan's rotors should still be flat. Owners on the G90-specific forum document rotors replaced repeatedly - one reports four sets since 2018 on… Repairs typically run $500-$1,500. Severity: medium.
What is the 2017-2022 Genesis G90 Soft-close power door cinching latch quits, leaving the door ajar or refusing to open?
The G90's power soft-close doors use a motorized cinching latch that pulls a door held at the first detent fully shut. On first-generation cars this system fails one door at a time: the cinch motor stops running, so the door sits visibly proud and the ajar warning stays lit until… Repairs typically run $100-$900. Severity: medium.
What is the 2017-2019 Genesis G90 Persistent 60-80 mph shimmy on first-gen AWD cars traced to a failing yaw/G-sensor module driving ESC brake vectoring?
First-generation G90 owners, overwhelmingly on HTRAC all-wheel-drive cars, report a rhythmic highway-speed vibration felt through the steering wheel and seat between roughly 60 and 80 mph that survives new tires, road-force balancing, new rotors and alignment. Forum diagnosis on… Repairs typically run $400-$1,200. Severity: medium.
