GenesisG902018Overview/genesis/g90/2018/base/

2018 Genesis G90

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 G90.

Body PASSENGER CAR

The 2018 Genesis G90 is a passenger car that recorded 16 total owner complaints and four recalls, with the electrical system identified as the top complaint area. Within the model's reliability history from 2017 to 2026, this year represents an improvement over the 2017 peak of 24 complaints. However, it remains less reliable than the 2020 model, which reached a low of two complaints.

Model year202620252024202320222021202020192018

Fitment & sizes

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

From the factory this vehicle uses OE oil filter 263193F300. 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 filter263193F300 alt 263453LTA0
Engine air filter28127B1000 alt 28128B1000
Fuel filter31112B1000
Spark plug1887011071 alt 1885209070
Battery37110B1100
Front wiper blades00F09AU016HY alt 99H09AKA26H
Serpentine belt252123LTA0 alt 252123F501
Thermostat256403L100 alt 256153F301
Cabin air filter97133D2500

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length205.5 in
Overall width76 in
Overall height58.3 in
Wheelbase124.8 in
Curb weight4793 lb
Track (front / rear)64.6 / 65 in
Weight distribution (front / rear)53/47

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.

5.1–5.3 sec0–60 mph (tested)quickest 5.10 sec — 2018 5.0 Ultimate Sedan
YearTrim / engine0–60¼ mileHPDrivetrain
20185.0 Ultimate Sedan 5.0L V85.10 sec13.70 sec420 hpAWD
20183.3T HTRAC Premium Sedan 3.3L Twin-Turbo V65.30 sec13.90 sec365 hpAWD
20175.0 Ultimate Sedan 5.0L V85.00 sec13.50 sec420 hpRWD
20173.3T Premium Sedan 3.3L Twin-Turbo V65.20 sec13.80 sec365 hpRWD
20173.3T HTRAC Premium Sedan 3.3L Twin-Turbo V65.30 sec14.00 sec365 hpAWD
20175.0 Ultimate Sedan 5.0L V85.30 sec13.80 sec420 hpRWD
20173.3T HTRAC Premium Sedan 3.3L Twin-Turbo V65.40 sec13.90 sec365 hpAWD
20203.3T Premium Sedan 3.3L Twin-Turbo V65.00 sec13.50 sec365 hpRWD

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the spark plugs every 42,000 mi; coolant every 30,000 mi. The big-interval services (every 30,000 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 miAir Conditioning System (inspect) · Battery (inspect) · Brake Line (inspect) · Brake Linings (inspect) · Brake Rotor (inspect) · CV Joint Boot (inspect)
Every 12,000 miAccessory Drive Belt (inspect) · Brake Hydraulic System (inspect fluid level) · Fuel Evaporative Emission Control System Lines (inspect) · Fuel Tank (inspect) · Fuel Tank Filler Cap (inspect)
Every 15,000 miFuel Evaporative Canister Filter (inspect) · Fuel Filter (inspect) · Parking Brake System (inspect)
Every 24,000 miDifferential (inspect fluid level) · Fuel Line (inspect)
Every 30,000 miEngine Coolant System (drain, flush & refill)
Every 42,000 miSpark Plugs (replace)
At 60,000 miAccessory Drive Belt (inspect)
Every 60,000 miEngine Valves (inspect valve lash)
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.

The 2018 Genesis G90 sits at a transitional point in the model's federal record: complaints dropped from 24 in 2017 to 16, and TSBs fell from 80 to 67, indicating early improvement, though 2018 still recorded more complaints than any year from 20192022. Recalls increased slightly from 3 to 4 between 2017 and 2018, the only year in this span where recalls exceeded complaints, though this may reflect more aggressive warranty coverage rather than greater defects. The top complaint areas were Electrical System (3), Engine (2), and Unknown/Other (2), with just 1 crash-related complaint and zero fire complaints recorded. The data shows a clear downward trend in complaints and TSBs through 2020, suggesting the 2018 model was part of the model's early refinement phase. Compared to later model years that saw sustained low complaint numbers, the 2018 falls in a period of declining but not yet minimal issues, making it a reasonable buy if priced competitively—but buyers should note it has more documented complaints than the cleaner 2019–2022 models.

4
Open recalls
NHTSA campaigns
67
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
16
Owner complaints
1 involved a crash · 0 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Overall★★★★★
Frontal★★★★
Side★★★★★
Rollover★★★★
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 16 complaints on record, top 8 components.

Electrical System3
Unknown Or Other2
Engine2
Tires1
Electrical System,Engine1
Latches/Locks/Linkages1
Electrical System,Lane Departure,Forward Collision Avoidance1
Air Bags1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 4 campaigns on record for this vehicle.

19V538000Engine And Engine Cooling:Exhaust System:Manifold/Header/Muffler/Tail PipeReported 19/07/2019

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… 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…

18V305000Visibility:WindshieldReported 10/05/2018

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… 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…

Technical service bulletins NHTSA · verified

Showing 5 of 67 bulletins on record with NHTSA.

BulletinDateComponentSummary
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…
25-BD-012H TSB2025-11-05Exterior LightingThis bulletin provides information regarding condensation related to the accumulated…
25-GI-009G2025-04-29Electrical SystemCertain Genesis vehicles may experience an inoperable horn from moisture or carbonization…
25-01-024H EM2025-04-07Electrical 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 2018 G90 have open recalls?

NHTSA lists 4 recall campaign(s) for this model year. Check your specific vehicle by VIN.