GenesisG902023Overview/genesis/g90/2023/base/

2023 Genesis G90

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2023 G90.

Transmission Automatic (S8)

The 2023 Genesis G90 pairs an 8-speed automatic transmission (S8) with EPA fuel economy ratings of 18 mpg city, 26 mpg highway, and 21 mpg combined, positioning it within the full-size luxury sedan segment, though specific platform and engine details are not catalogued in the available data; reliability tracking from 2017 through the 2026 model span shows owner complaints peaked at 24 in 2017 and reached a low of just 2 in 2020, with the 2023 model recording 5 complaints—indicating this model year falls within a period of substantially improved reliability compared to the model's launch, though it has not yet matched the 2020 trough, and the top complaint areas remain seat belts and fuel/propulsion systems alongside 6 total recalls on record.

Model year202620252024202320222021202020192018

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Lug nut torque101.0-116.0 ft-lbsOEM · verified
EPA fuel economy18/26/21 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses OE oil filter 263203N000. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

OE service part numbers OEM · verified

Engine oil filter263203N000
Fuel filter31112L1000

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S8)

Dimensions & weight NHTSA vPIC

Overall length207.9 in
Overall width58.7 in
Overall height76 in
Wheelbase125.2 in
Curb weight4859 lb
Track (front / rear)64.6 / 64.6 in

Ratings & economy EPA / vPIC

EPA city / highway / combined18 / 26 / 21 mpg
DrivetrainAll-Wheel Drive
Passenger volume109 cu ft
Cargo volume11 cu ft
Recommended fuelPremium Gasoline

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

Independent road tests for the G90 of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

4.9–5.4 sec0–60 mph (tested)quickest 4.90 sec — 2023 3.5T e-Supercharger Sedan
YearTrim / engine0–60¼ mileHPDrivetrain
20233.5T e-Supercharger Sedan 3.5L Twin-Turbo V6 + Elec4.90 sec13.50 sec409 hpAWD
20233.5T e-Supercharger Sedan 3.5L Twin-Turbo V6 + Elec5.10 sec13.70 sec409 hpAWD
20233.5T e-Supercharger Sedan 3.5L Twin-Turbo V6 + Elec5.40 sec13.90 sec409 hpAWD

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

Torque lug nuts to 101.0-116.0 ft-lbs. The firing order is 1-2-3-4-5-6.

Lubricants & capacities

Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity9.7 qt

Chassis torques

Lug Nuts101.0-116.0 ft-lbs

Ignition

Cylinder Firing Order1-2-3-4-5-6

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the spark plugs every 48,000 mi; coolant every 25,000 mi. The big-interval services (every 25,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 6,000 miAccessory Drive Belt (inspect)
Every 8,000 miAccessory Drive Belt (inspect) · Air Conditioning System (inspect) · Battery (inspect) · Brake Line (inspect) · Brake Linings (inspect) · Brake Rotor (inspect)
Every 16,000 miCabin Air Filter (replace) · Fuel Evaporative Canister Filter (inspect) · Fuel Evaporative Emission Control System Lines (inspect) · Fuel Line (inspect) · Fuel Tank (inspect) · Fuel Tank Filler Cap (inspect)
Every 25,000 miEngine Coolant System (drain, flush & refill)
Every 32,000 miDifferential (inspect fluid level)
At 48,000 miAccessory Drive Belt (inspect)
Every 48,000 miBrake Hydraulic System (drain, refill & bleed) · Spark Plugs (replace)
Every 60,000 miDrive Belt (replace)
At 120,000 miEngine Coolant System (drain, flush & refill)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

For the 2023 Genesis G90, the federal record shows 5 complaints, 6 recalls, 0 investigations, and 42 technical service bulletins. That is a clear inflection from the 20202022 stretch, which averaged only 2–3 complaints, roughly 1–2 recalls, and 20–30 TSBs per year, and from the 2024–2026 period, which settled back to 0–2 complaints and 2–4 recalls with TSBs declining to 9–36. The five 2023 complaints are single reports spread across seat belts, fuel/propulsion system, powertrain, and electrical system, with one crash-related complaint and no fire complaints; the data does not specify root causes for the recalls. Across the 2017–2026 arc, 2023 sits at a low-ownership-complaint but elevated recall/TSB point. Takeaway: a 2023 G90 can be a sound used purchase if every one of the six recalls has been completed and any outstanding TSBs addressed, but a 2024 or 2025 may offer similar content with a lower open-campaign burden.

6
Open recalls
NHTSA campaigns
42
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
5
Owner complaints
1 involved a crash · 0 a fire
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 5 complaints on record, top 5 components.

Seat Belts,Fuel/Propulsion System1
Seat Belts1
Power Train1
Electrical System1
Fuel/Propulsion System1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 6 campaigns on record for this vehicle.

23V210000Seat Belts:FrontReported 28/03/2023

Hyundai Motor America (Hyundai) is recalling certain 2023 Genesis G90 vehicles. In the event of a crash, the front driver-side, passenger-side, and rear seat belt pretensioners may explode upon deployment. Remedy: Dealers will secure the seat belt pretensioners with a cap, free of charge. Owner notification letters were mailed May 17, 2023. Owners may contact Hyundai customer service at…

24V282000Fuel System, Gasoline:Delivery:Fuel PumpReported 19/04/2024

Hyundai Motor America (Hyundai) is recalling certain 2022-2023 Genesis GV70, GV80, G80, and G90 vehicles. The fuel pump may fail, which can result in a loss of drive power. Remedy: Dealers will inspect and replace the fuel pump assembly, free of charge. Owner notification letters were mailed June 7, 2024. Owners may contact Hyundai customer service at…

Technical service bulletins NHTSA · verified

Showing 5 of 42 bulletins on record with NHTSA.

BulletinDateComponentSummary
26-HA-002G TSB2026-06-10EngineSome Genesis vehicles (listed below) equipped with Lambda-III 3.5T-GDI engines may…
26-GI-002G TSB2026-05-27Electrical SystemThis bulletin provides information related to the navigation and head unit software…
DTN DL2026-04-10Air BagsThe National Highway Traffic Safety Administration (NHTSA) has identified the presence of…
DTN DCS2026-04-10Air BagsThe National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety…
26-01-035G DCS2026-04-09Electrical SystemSome vehicles may exhibit a loss of connectivity or interruptions in the middle of using…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific G90. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

Does the 2023 G90 have open recalls?

NHTSA lists 6 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the G90 get?

EPA figures are 18 city / 26 highway / 21 combined mpg.