GenesisG802018Overview/genesis/g80/2018/base/

2018 Genesis G80

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 G80.

Body PASSENGER CAR

The 2018 Genesis G80 enters the segment as a passenger car that, according to owner‑reported data spanning the 2017‑2026 model run, recorded the highest complaint volume of any year at 94 total filings, with the electrical system emerging as the leading concern and six recalls issued. That peak stands in sharp contrast to the 2024 model, which logged just a single complaint, underscoring a steep downward trend in reported issues across the generation. For a researcher, the 2018 G80 represents the most scrutinized vintage in the lineup, signaling that early‑generation electrical architecture and recall campaigns warrant close examination when assessing long‑term durability.

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 264143F501. 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.

Tail / brake / turnOFFOEM · verified

OE service part numbers OEM · verified

Engine oil filter264143F501 alt 263203F500
Engine air filter28128B1000 alt 28127B1000
Fuel filter31112B1000
Spark plug1887011071 alt 1885209070
Battery37110B1100
Front wiper blades99H09AKA26H alt 00F09AU016HY
Serpentine belt252123LTA0 alt 252123F501
Thermostat256153F301 alt 256403L100
Cabin air filter087903M000A alt 97133D2500

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length196.5 in
Overall width74.8 in
Overall height57.9 in
Wheelbase118.5 in
Curb weight4295 lb
Track (front / rear)64.6 / 65.7 in
Weight distribution (front / rear)52/48

Performance & power Independent road tests

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

Independent road tests for the G80 of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

4.9–5.2 sec0–60 mph (tested)quickest 4.90 sec — 2018 3.3T Sport Sedan
YearTrim / engine0–60¼ mileHPDrivetrain
20183.3T Sport Sedan 3.3L Twin-Turbo V64.90 sec13.50 sec365 hpRWD
20183.3T Sport HTRAC Sedan 3.3L Twin-Turbo V65.00 sec13.60 sec365 hpAWD
20183.3T Sport Sedan 3.3L Twin-Turbo V65.20 sec13.80 sec365 hpRWD
20173.8 HTRAC Sedan 3.8L V66.60 sec15.00 sec311 hpAWD

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the spark plugs every 97,500 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 Canister Filter (inspect) · Fuel Evaporative Emission Control System Lines (inspect) · Fuel Filter (inspect) · Fuel Tank (inspect)
Every 24,000 miDifferential (inspect fluid level) · Fuel Line (inspect)
Every 30,000 miEngine Coolant System (drain, flush & refill)
At 60,000 miAccessory Drive Belt (inspect)
Every 60,000 miEngine Valves (inspect valve lash)
Every 97,500 miSpark Plugs (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.

The 2018 Genesis G80 represents the peak of consumer complaints and recalls for this vehicle's record, reporting 94 complaints and 6 recalls compared to 63 complaints and 2 recalls in 2017. Following 2018, there is a sharp downward trend in reported issues, with complaints dropping to 27 in 2019 and falling into the single digits from 2021 through 2026. For the 2018 model, the most frequent complaint areas are the Electrical System (13), Unknown Or Other (11), Steering (10), and Wheels (8), with 8 recorded crash complaints and 0 fire complaints. While TSBs remained high at 97, nearly identical to the 98 reported in 2017, the number of investigations remained flat at 1 across the 2017-2019 period. Because 2018 is the statistical outlier for both complaints and recalls in this dataset, it is not the ideal year to buy.

6
Open recalls
NHTSA campaigns
97
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
94
Owner complaints
8 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 94 complaints on record, top 8 components.

Electrical System13
Unknown Or Other11
Steering10
Wheels8
Air Bags6
Engine6
Tires4
Power Train3

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 6 campaigns on record for this vehicle.

21V160000Service Brakes, Hydraulic:Antilock/Traction Control/Electronic Limited Slip:Control Unit/ModuleReported 10/03/2021

Hyundai Motor America (Hyundai) is recalling certain 2015-2016 Genesis and 2017-2020 Genesis G80 vehicles. The Anti-Lock Brake System (ABS) module could malfunction and short circuit. Remedy: Owners are advised to park outside and away from structures until the remedy is complete. Hyundai will notify owners, and dealers will replace the ABS module fuse, free of charge…

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…

Technical service bulletins NHTSA · verified

Showing 5 of 97 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-BD-001G-1 TSB2025-05-29Unknown Or OtherThis bulletin provides repair information for the dark chrome trim when stains are…
25-01-024G-1 TSB2025-05-08Electrical 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 G80. 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 G80 have open recalls?

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