2018 Genesis G80 reliability

Is it reliable?

Owners have filed 95 complaints with NHTSA about the 2018 Genesis G80 over 9 years — 8 per year. That is the most complaints per year among the 8 G80 years on this site. NHTSA has 6 recalls on file, including Turbocharger, Solenoid, and Brake control module.

2017 Genesis G80 — Photo by Alexander Migl, resized from the original. Wikimedia Commons CC BY-SA 4.0

Complaints

Per year

Recalls

Years on the road

What owners report

The complaints owners file most often name Electrical system (22 of 95), then Steering (15) and Engine (11). Those filings include 8 that report a crash and 3 that report an injury.

Next to 2017 and 2019

The 2017 G80 has 66 complaints, 5 per year, and the 2019 has 27 complaints, 2 per year. The 2018 has more complaints per year than the 2017. The 2018 has more complaints per year than the 2019.

The complaint rate is complaints filed in this year’s first 3 years on the road, divided by however many of those years have passed. Recalls are a separate count. The numbers are for the US-market 2018 Genesis G80. How we count. Data as of 2026-10-16.

Recalls (6)

Recall engine and cooling, engine, gasoline, turbocharger 2024-03-08 · NHTSA campaign 24V191000

Summary 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.

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.

Recall electrical system, starter, solenoid 2024-02-13 · NHTSA campaign 24V107000

Summary 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.

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).

Recall Brake control module 2021-03-10 · NHTSA campaign 21V160000

Summary 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. Owner notification letters were mailed July 6, 2021. Owners can contact Hyundai customer service at 1-855-371-9460. Hyundai's numbers for this recall are 201 and 006G.

Recall engine and cooling, exhaust system, manifold and muffler 2019-07-19 · NHTSA campaign 19V538000

Summary 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.

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.

Recall air bags, sensor, occupant classification 2018-07-27 · NHTSA campaign 18V496000

Summary Hyundai Motor America (Hyundai) is recalling certain 2018 Genesis G80 vehicles. The Occupant Classification System (OCS) may incorrectly detect that an adult is in the passenger seat, even if the seat is unoccupied. In the event of a crash, if a child or infant is in the seat, the front passenger air bag may deploy instead of being deactivated.

Remedy Hyundai will notify owners, and dealers will reprogram the OCS, free of charge. The recall began August 24, 2018. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 002G.

Recall visibility, windshield 2018-05-10 · NHTSA campaign 18V305000

Summary 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.

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.

Complaints by component (95 total)

Electrical system

Steering

Engine

Air bags

Wheels

Powertrain

Service brakes

Structure

Tires

Engine and engine cooling

Exterior lighting

Hydraulic brakes

Visibility and wipers

Back-over prevention

Forward collision avoidance

Lane departure

Latches, locks, and linkages

Parking brake

Seats

Suspension

Show 12 more Show less

Crash-flagged

Fire-flagged

Injury reports

Death reports

Complaints filed per year

Excerpts from recent NHTSA complaint filings

"After 2 hours on the road August 1, 2026 (from [XXX] to [XXX]), in 119-degree heat, the AC stopped blowing cold air out of the dash vents. There was cold air coming out of the rear-seat vent. The vehicle became…"
Unknown or other · filed 2026-08-15
"Dear NHTSA Office of Defects Investigation, I am submitting this letter to request an urgent review of a recurring and widespread air‑conditioning failure in the 2018 Genesis G80. The AC system consistently shuts off…"
Unknown or other · filed 2026-07-09
"Driver side rear door electric latch is stop working and i tried to open the latch manually but the locked latch won't let me but remain locked. I have concerns with the situation because when door latch were broken due…"
Unknown or other · filed 2026-07-08
"The contact owns a 2018 Genesis G80. The contact stated that the Check Oil and Low Oil warning light illuminated while the vehicle was idling. The warning lights turned off while driving. The vehicle was not taken to…"
Engine and engine cooling · filed 2026-04-23
"The contact owns a 2018 Genesis G80. The contact stated that while driving at an undisclosed speed, the contact's vehicle was involved in a crash. The contact stated that the vehicle crashed into a deer, and then…"
Air bags · filed 2026-02-11

NHTSA crash ratings

Version	Overall	Front	Side	Rollover
2018 Genesis G80 4 DR AWD	5 stars	5 stars	5 stars	5 stars
2018 Genesis G80 4 DR RWD	5 stars	5 stars	5 stars	5 stars
2018 Genesis G80 Sport 4 DR AWD	5 stars	5 stars	5 stars	5 stars
2018 Genesis G80 Sport 4 DR RWD	5 stars	5 stars	5 stars	5 stars

Stars are how this vehicle did in NHTSA crash tests. They are a safety result, separate from the complaint record. Not rated means that test was not run for this version.

Fuel economy

Trim	Engine	Transmission	Drive	City	Hwy	Combined	Annual fuel cost
G80 all-wheel drive	3.8L, 6-cyl	Automatic (8-speed)	All-wheel drive	18	25	20 MPG	$3250
G80 all-wheel drive	3.3L, 6-cyl	Automatic (8-speed)	All-wheel drive	17	24	20 MPG	$4000
G80 all-wheel drive	5L, 8-cyl	Automatic (8-speed)	All-wheel drive	15	23	18 MPG	$4450
G80 rear-wheel drive	3.8L, 6-cyl	Automatic (8-speed)	Rear-wheel drive	19	27	22 MPG	$2950
G80 rear-wheel drive	5L, 8-cyl	Automatic (8-speed)	Rear-wheel drive	16	24	19 MPG	$4200
G80 rear-wheel drive	3.3L, 6-cyl	Automatic (8-speed)	Rear-wheel drive	17	25	20 MPG	$4000

Specs and fitment

First generation (DH), 2017–2020

Body styles Sedan

Oil SAE 0W-30 (3.3L turbo and 5.0L V8; see owner manual for grade)

Tire size 245/45R18, 245/40R19 (Sport), 275/35R19 (rear on some 19-inch setups) front / 245/45R18, 245/40R19, 275/35R19 rear

Known issues for this generation

Recall 24V191000 covers certain 2018-2020 Genesis G80 vehicles with the 3.3-liter V6 turbocharged engine (along with other Genesis and Hyundai models). The left turbocharger oil feed pipe may deteriorate and leak oil, which can increase the risk of an engine compartment fire near hot components. Dealers replace the left turbocharger oil feed pipe free of charge. This recall expands and replaces recall 19V-538; vehicles previously repaired under 19V-538 need the new remedy.

Compare

Previous year 2017 Genesis G80 Next year 2019 Genesis G80 See every Genesis G80 model year →

Frequently asked questions

Is the 2018 Genesis G80 reliable?

What are common problems with a 2018 Genesis G80?

The complaints owners file most often name Electrical system (22 of 95), then Steering (15) and Engine (11). Those filings include 8 that report a crash and 3 that report an injury.

Is the 2018 Genesis G80 more reliable than the years next to it?

The 2017 G80 has 66 complaints, 5 per year, and the 2019 has 27 complaints, 2 per year. The 2018 has more complaints per year than the 2017. The 2018 has more complaints per year than the 2019.

Has the 2018 Genesis G80 been recalled?

The 2018 Genesis G80 has 6 recalls on file with NHTSA. See the recalls table on this page for dates, components, and remedies.

How many complaints have owners filed about the 2018 Genesis G80?

Owners have filed 95 complaints about the 2018 Genesis G80 with NHTSA.

What mpg does a 2018 Genesis G80 get?

EPA-rated combined fuel economy for the 2018 Genesis G80 is 19.8 MPG. See the fuel economy table on this page for city and highway figures by engine and transmission.

What oil does a Genesis G80 use?

U.S. owner manuals specify SAE 0W-30; capacity varies by engine (for example about 6.5 qt on the 2.5L turbo and 7.4 qt on the 3.5L turbo on second-generation models).

What tire sizes fit a Genesis G80?

U.S. manuals list sizes such as 245/50R18, 245/45R19, and 245/40R20 on later RG3 models; first-generation Sport trims may use staggered 275/35R19 rears—match the door-jamb label for your trim.

What NHTSA recalls affect the Genesis G80?

Documented campaigns include 24V-191 (left turbo oil feed pipe on 2018-2020 3.3L turbo), 26V-229 (fuel pipe at the rail on 2021-2025), and 23V-094 (front seat belt pretensioners on 2021-2023); shared campaigns list other Genesis models in the same unit totals.