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 2017-2020 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 2017-2020 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 2017-2022 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 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 2017-2023 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 2017-2022 Genesis G90 Power trunk fails to close/latch or release, often due to lid misalignment?

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 (c… Repairs typically run $400-$1,500. Severity: low.

Genesis · Known Issues

2017-2026 Genesis G90 Problems: 16 Known Issues

2017-2026 model years · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated August 2026

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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2017-2026 Genesis G90 has 16 documented known issues, with 9 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). at .

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 2017-2026 Genesis G90 has 16 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, 9 are rated critical and should be addressed promptly.

Is the Genesis G90 reliable?

The 2017-2026 Genesis G90 has 16 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 9 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. 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.

What year Genesis G90 is the most reliable?

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 16 documented issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports.

All 16 Known Issues

Other Genesis Models

Frequently Asked Questions

What are the most common Genesis G90 problems?

Is the Genesis G90 reliable?

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

What year Genesis G90 is the most reliable?

Intermittent dashboard warning cascade with electronic parking brake lockout#

Blank instrument cluster on startup due to LG software logic error#

Water intrusion into starter solenoid causes electrical short and engine-compartment fire#

Infotainment/navigation screen freezes or goes blank, requiring reboot#

Repeated 12V battery drain / dead battery from head unit and modules drawing power when parked#

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)#

Savile Silver paint reflects corner radar, triggering phantom automatic emergency braking (Highway Drive Assist)#

Seat-belt pretensioner over-pressurization can rupture and eject metal fragments#

Left turbocharger oil feed pipe cracks and leaks oil onto exhaust manifold, causing engine-compartment fire#

5.0L Tau V8 GDI intake-valve carbon buildup and some oil consumption#

Air suspension failures — leaking air struts/bags, compressor burnout and rear sag#

Panoramic sunroof creaking, rattling and wind noise (loose/under-torqued frame bolts)#

Power trunk fails to close/latch or release, often due to lid misalignment#

8-speed automatic harsh/jerky upshifts and low-speed lurch (solenoid TSB)#

Coolant leaks from water pump and thermostat housing#

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

What is the 2017-2022 Genesis G90 Air suspension failures — leaking air struts/bags, compressor burnout and rear sag?

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

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

What is the 2017-2022 Genesis G90 Left turbocharger oil feed pipe cracks and leaks oil onto exhaust manifold, causing engine-compartment fire?

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

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

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

What is the 2017-2019 Genesis G90 Water intrusion into starter solenoid causes electrical short and engine-compartment fire?