DecodedCars2021 Genesis G90
Trims, performance, features, fuel economy, safety and known problems — with the pros and cons against similar 2021 models.
- Class
- Large Cars
- Body styles
- 4dr Sedan
- Engines
- 3.3L 6-cyl turbo, 5.0L 8-cyl
- Drivetrain
- All-Wheel Drive, Rear-Wheel Drive
- Fuel
- Premium Gasoline
- MPG (best)
- 20 combined · 17 city / 24 hwy
- Length
- 205.1 in
- Curb weight
- 4,815 lb
- NHTSA rating
- Not rated
- Recalls
- 1 campaign
Pros & cons
What's good
- AWD / 4WD available
Watch out for
- Below-average fuel economyBest version gets 20 MPG combined, 17% below the 2021 large car average of 24.1 MPG.
- Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.
Calculated from EPA, NHTSA and vPIC data against 16 similar 2021 models — not a review. How we calculate this →
Overview
The 2021 Genesis G90 is a large car offered with 2 engines (3.3L 6-cyl turbo and 5.0L 8-cyl) and all-wheel drive and rear-wheel drive.
It measures about 205 inches long and 75 inches wide on a 124-inch wheelbase, with a curb weight of roughly 4,815 lb.
EPA rates its most efficient version at 20 MPG combined (17 city / 24 highway), 17% worse than the 2021 large car average of 24.1 MPG, for an estimated $4,100 a year in fuel.
NHTSA has not published a 5-Star overall rating for this model year.
It has 1 recall campaign on file and owners have filed 5 complaints with NHTSA since 2015, most often about the unknown or other.
What changed for 2021
No changes to engines, powertrains, drivetrains, size, EPA ratings or NHTSA crash rating compared with the 2020 G90 — a carry-over year in the data.
Compared with 2020; trim, feature and price changes aren't covered. See the 2020 G90 →
Dimensions & weight
| Body | Length | Width | Height | Wheelbase | Track F / R | Curb weight | Weight F/R |
|---|---|---|---|---|---|---|---|
| 4dr Sedan | 205.1 in | 75.2 in | 59.1 in | 124.4 in | 63.8 / 63.8 in | 4,815 lb | 53/47 |
Transport Canada CVS (Open Government Licence – Canada), Canadian-market figures.
Will it fit your garage? Check with your measurements →Engines, MPG & running costs
| Version | Engine | Transmission | Drive | City / Hwy / Comb | vs. class | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|---|---|
| G90 AWD | 3.3L 6-cyl turbo | Automatic (S8) | All-Wheel Drive | 17 / 24 / 20 | -17% | $4,100 | 460 |
| G90 RWD | 3.3L 6-cyl turbo | Automatic (S8) | Rear-Wheel Drive | 17 / 24 / 19 | -21% | $4,350 | 459 |
| G90 RWD | 5.0L 8-cyl | Automatic (S8) | Rear-Wheel Drive | 16 / 24 / 19 | -21% | $4,350 | 481 |
| G90 AWD | 5.0L 8-cyl | Automatic (S8) | All-Wheel Drive | 16 / 23 / 18 | -25% | $4,550 | 488 |
EPA estimates; "vs. class" is combined MPG against the 2021 EPA class average. How we calculate this →
Safety ratings & technology
NHTSA has not published 5-Star ratings for the 2021 Genesis G90.
Similar 2021 large cars
| Model | Best MPG / range | NHTSA overall | Recalls |
|---|---|---|---|
| 2021 Genesis G90 (this car) | 20 MPG | Not rated | 1 |
| 2021 BMW 5 Series | 28 MPG | Not rated | 0 |
| 2021 Mercedes-Benz S-Class | 24 MPG | Not rated | 0 |
| 2021 BMW 7 Series | 25 MPG | Not rated | 0 |
| 2021 Lexus LS | 28 MPG | Not rated | 2 |
| 2021 Tesla Model S | 405 mi | Not rated | 23 |
| 2021 Porsche Panamera | 22 MPG | Not rated | 4 |
Recalls (1)
Engine And Engine Cooling › Engine › Gasoline › Turbo/Supercharger · Mar 8, 2024
NHTSA campaign 24V191000 · 28,439 vehicles
- Problem
- 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.
Not every 2021 Genesis G90 is affected — only a VIN check confirms your car.
Owner-reported problems
Unverified owner reports; best-sellers collect more.
Used 2021 Genesis G90 buyer's checklist
- Run the VIN at nhtsa.gov/recalls. 1 recall this year — ask for proof of repairs.
- Forward Collision Avoidance › Automatic Emergency Braking — 2 owner reports. Make sure driver-assist systems and the backup camera work without error messages.
- Tires — 1 owner reports. Ask the seller and mechanic specifically about this system.
- Fuel/Propulsion System — 1 owner reports. Smell for fuel around the car and in the cabin, check that it starts easily when warm, and look at the oil dipstick for a fuel smell or rising level.
- Before you pay: service records, a history report and an independent inspection.
Generated by DecodedCars from NHTSA recalls and owner complaints for the 2021 Genesis G90. Not a substitute for a professional inspection.
Other G90 years
Compare all years →| Year | MPG (best) | Length | Overall | Recalls | Complaints |
|---|---|---|---|---|---|
| 2026 G90 | 21 | 207.9 in | Not rated | 2 | 0 |
| 2025 G90 | 21 | 207.9 in | Not rated | 4 | 2 |
| 2024 G90 | 21 | 207.9 in | Not rated | 4 | 3 |
| 2023 G90 | 21 | 207.9 in | Not rated | 6 | 5 |
| 2022 G90 | 20 | 205.1 in | Not rated | 2 | 4 |
| 2020 G90 | 20 | 205.5 in | Not rated | 1 | 3 |
| 2019 G90 | 20 | 205.5 in | Not rated | 2 | 6 |
| 2018 G90 | 20 | 205.5 in | Not rated | 4 | 16 |
| 2017 G90 | 20 | 205.5 in | Not rated | 3 | 26 |
Sources: EPA, NHTSA, Transport Canada, Wikimedia Commons. Not affiliated with NHTSA, the EPA or Genesis. How we calculate this →