2018 Genesis G90
Gas Large car
The 2018 Genesis G90 is sold in the U.S. as a gas large car with 4 EPA-rated configurations. The most efficient version, the G90 AWD, is EPA-rated at 20 mpg combined. NHTSA lists 4 recall campaigns for this model year, 3 rated critical, which gives it a Safety Signal grade of F. Owners have filed 16 complaints, most often about electrical system.
Specs & fuel economy (EPA)
| Configuration | Powertrain | Drive | Engine / motor | City | Hwy | Comb | Annual fuel* |
|---|---|---|---|---|---|---|---|
| G90 AWD | Gas | AWD | 3.3L 6-cyl turbo | 17 | 24 | 20 | $3,900 |
| G90 RWD | Gas | RWD | 3.3L 6-cyl turbo | 17 | 24 | 20 | $3,900 |
| G90 RWD | Gas | RWD | 5.0L 8-cyl | 16 | 24 | 19 | $4,100 |
| G90 AWD | Gas | AWD | 5.0L 8-cyl | 15 | 23 | 18 | $4,300 |
*EPA estimate at 15,000 miles/year and EPA reference fuel/electricity prices. Source: fueleconomy.gov vehicle records.
Out of factory warranty soon?
The 2018 Genesis G90 is in the years where transmission, electronics and drivetrain repairs land on the owner. Compare extended-coverage quotes in about two minutes.
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Recalls (4)
Engine And Engine Cooling
criticalProblem: 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.
Risk: An oil leak in the presence of hot engine components can increase the risk of an engine compartment fire.
Fix: Dealers will replace the left turbocharger oil feed pipe, free of charge. Owner notification letters were mailed May 3, 2024. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 019G. This recall expands and replaces recall number 19V-538. Vehicles previously repaired under 19V-538 will need to have the new remedy completed.
Electrical System
criticalProblem: Hyundai Motor America (Hyundai) is recalling certain 2015-2016 Genesis, 2017-2019 Genesis G80, Genesis G90, and 2019 Genesis G70 vehicles. Water may enter the starter solenoid and cause an electrical short, which can result in an engine compartment fire while parked or driving.
Risk: An engine compartment fire while parked or driving can increase the risk of injury.
Fix: Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will install a remedy relay kit in the engine junction box, free of charge. Owner notification letters were mailed July 15, 2024. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's numbers for this recall are 254(H) and 018G(G).
Engine And Engine Cooling
criticalProblem: Hyundai Motor America (Hyundai) is recalling certain 2018 Genesis G80 and 2017-2018 Genesis G90 vehicles equipped with 3.3 liter turbocharged engines. The turbocharger oil supply pipe may have a loose seal, causing oil to leak onto the exhaust manifold.
Risk: Oil leaking onto the exhaust manifold increases the risk of a fire.
Fix: Hyundai will notify owners, and dealers will replace the turbocharger oil supply pipe, free of charge. The recall began October 3, 2019. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 003G.
Visibility
highProblem: Hyundai Motor America (Hyundai) is recalling certain 2018 Hyundai Genesis G80 and Genesis G90 vehicles. The windshield and rear window on these vehicles may have been installed with incorrect primer, potentially reducing the glass bonding strength.
Risk: If the glass bonding strength is reduced over time, the windshield and rear window may detach while driving, increasing the risk of a crash.
Fix: Hyundai will notify owners, and dealers will replace the front and rear glass, free of charge. The recall began on July 6, 2018. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 001G.
Owner complaints
16 complaints filed
1 involved a crash, 0 a fire, 0 injuries, 0 deaths reported by owners.
Filed by year — 2018: 3 · 2019: 3 · 2020: 2 · 2021: 2 · 2022: 1 · 2023: 1 · 2024: 3 · 2025: 1
Most-cited components
- Electrical System — 5
- Engine — 4
- Fuel/Propulsion System — 2
- Power Train — 2
- Unknown Or Other — 2
Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.
Crash ratings
NHTSA has not published 5-Star crash ratings for this model year.
Other G90 model years
2026 G90
2 recalls · 0 complaints
D2025 G90
4 recalls · 2 complaints
D2024 G90
4 recalls · 3 complaints
F2023 G90
6 recalls · 5 complaints
C2022 G90
2 recalls · 4 complaints
B2021 G90
1 recalls · 5 complaints
B2020 G90
1 recalls · 2 complaints
C2019 G90
2 recalls · 6 complaints
F2017 G90
3 recalls · 24 complaints
Sources & method
Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). Floor 35. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Complaint counts and NHTSA crash ratings are shown separately and are not blended into the grade.
EPA figures come from fueleconomy.gov vehicle records (ids 38826, 38827, 38829, 38828). Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed weekly.