Verdict
2018 Genesis G90: Complaints, Recalls & Known Issues
What the public record actually says about the 2018 Genesis G90 — every figure below is a NHTSA or EPA number, not an opinion.
The read
Fewer reported complaints than most sedan.
Owners filed 16 NHTSA complaints — fewer complaints than 68% of 2018 sedans. Electrical System leads the reports (31%). 4 safety recall campaigns on record — check the VIN and remedy terms with a dealer.
Based on NHTSA complaint volume against 2018 sedans, not adjusted for how many were sold. It describes the model year, not the individual car you are looking at.
Complaints filed
16
Reports to NHTSA, 2018
Safety recalls
4
NHTSA campaigns on record
NHTSA crash test
Not rated
Overall NCAP rating
Combined MPG
19.5
EPA estimate
Complaint volume vs. segment peers
Fewer complaints than 68% of 2018 sedans
The bar is this car's percentile among 2018 sedans by complaint volume — a full bar means the fewest complaints in its class. Not adjusted for sales.
Known issues
Electrical System issues lead owner complaints (31% of 16 reports), followed by engine (13%).
+ 1 more component categories with fewer reports.
Share of all 16 NHTSA complaints for this model year, grouped by the component owners named. Bars are scaled to the largest category. Examples: ODI 11458509, ODI 11603743, ODI 11598256, ODI 11588425, ODI 11344044.
Recalls(4)
Open a recall to read what NHTSA says is wrong, what can happen, and how it gets fixed. Check the VIN and remedy eligibility with a dealer; federal no-charge requirements have an age limit, though a manufacturer may offer more coverage.
Engine And Engine CoolingAug 2024 · 24V191000Details +Close −
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.
Remedy: 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.
VisibilityOct 2018 · 18V305000Details +Close −
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.
Remedy: 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.
Engine And Engine Cooling · 19V538000Details +Close −
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.
Remedy: 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.
Electrical System · 24V107000Details +Close −
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.
Remedy: 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).
A campaign can apply to this model year without being incomplete on a specific vehicle. Check the VIN with NHTSA or a dealer to confirm whether a particular car needs repair.
Investigations
0 NHTSA investigations on record
No investigations are on record as of Jul 2026. An empty record is not a clean bill of health.
Crash-test ratings
2018 Genesis G90 4 DR AWD NHTSA source
- Overall
- Not rated
- Frontal
- Not rated
- Side
- Not rated
- Rollover
- Not rated
2018 Genesis G90 4 DR RWD NHTSA source
- Overall
- Not rated
- Frontal
- Not rated
- Side
- Not rated
- Rollover
- Not rated
Fuel economy by trim
| Trim | Engine | Drivetrain | Transmission | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| G90 RWD | 3.3L 6-cyl | Rear-Wheel Drive | Automatic (S8) | 17 | 24 | 20 |
| G90 AWD | 3.3L 6-cyl | All-Wheel Drive | Automatic (S8) | 17 | 24 | 20 |
| G90 RWD | 5.0L 8-cyl | Rear-Wheel Drive | Automatic (S8) | 16 | 24 | 19 |
| G90 AWD | 5.0L 8-cyl | All-Wheel Drive | Automatic (S8) | 15 | 23 | 18 |
EPA laboratory estimates by trim and engine. Actual mileage varies with driving, weather, load, and maintenance. EPA source.
Before you buy
Useful next checks
Federal records tell you about patterns. These checks can tell you more about the specific car in front of you.
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Compare model years
"Fewest reports" and "most complained" describe raw NHTSA complaint totals, not vehicle reliability. The last few model years are left unlabelled because they have had less road time.
2018 Genesis G90: frequently asked
What does the complaint record show for the 2018 Genesis G90?
Owners filed 16 NHTSA complaints about the 2018 Genesis G90 — fewer complaints than 68% of comparable 2018 sedans, so it sits toward the stronger end of its class. That's a signal, not a guarantee about any single car.
What are the most common problems on the 2018 Genesis G90?
The most-reported problem areas are Electrical System (31% of complaints) and engine (13%).
How many recalls does the 2018 Genesis G90 have?
4 recalls have been issued that affect the 2018 Genesis G90, covering components such as engine and engine cooling. Check the VIN with NHTSA and ask a dealer to confirm remedy eligibility; federal no-charge requirements have an age limit, though manufacturers may offer more coverage.
What gas mileage does the 2018 Genesis G90 get?
The EPA rates the 2018 Genesis G90 between 18 and 20 mpg combined, depending on trim and drivetrain.