Most common 2018 Genesis G80 problems
Share of the 97 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Genesis G80 complaints by model year
Best G80 years: 2020, 2019, 2024. Compare all years →
2018 Genesis G80 recalls (7)
Seats › Front assembly › Power adjust
Hyundai Motor America (Genesis) is recalling certain 2015-2016 Hyundai Genesis, and 2017-2020 Genesis G80 vehicles. The front power seat motors may overheat due to a stuck power seat control switch, which can result in a fire while parked or driving.
Remedy: Owners are advised to park their vehicles outdoors and away from other vehicles or structures until the repair has been performed. The remedy is currently under development.
Engine and engine cooling › Engine › Gasoline › Turbo/supercharger
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.
Electrical system › Starter assembly › Solenoid
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.
Service brakes, hydraulic › Antilock/traction control/electronic limited slip › Control unit/module
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.
Engine and engine cooling › Exhaust system › Manifold/header/muffler/tail pipe
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.
Air bags › Sensor › Occupant classification
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.
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.
Show 1 more recall
Visibility › Glass, side/rear
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.
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 2018 Genesis G80:
Hyundai and Kia ABS Module Fires
The Office of Defects Investigation (ODI) has received eight Hyundai Motor America (Hyundai) and eight Kia America, Inc. (Kia) Part 573 Recall Reports between 2016 and 2023. The combined 16 safety recalls all involve the antilock braking system (ABS) modules or Hydraulic Electronic Control Units (HECU) manufactured by the equipment supplier Mando.
What 2018 Genesis G80 owners say
Electrical system all 22 →
The contact owns a 2018 Genesis G80. The contact received notifications of NHTSA Campaign Numbers: 24V107000 (Electrical System) and 24V191000 (Engine and Engine Cooling) however, the parts to do the recall repairs were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The manufacturer was not made aware of the issue. The contact stated that the vehicle was taken for routine maintenance; however, upon leaving the repair center, while driving at an undisclosed speed, there was an alarm followed by the engine overheating. The vehicle was able to be restarted; however, the vehicle was towed to the dealer. The dealer confirmed that parts were not yet available for the recall repair. The failure mileage was approximately 49,000. VIN tool confirms parts not available.
The contact owns a 2018 Genesis G80. The contact stated that the vehicle failed to start. The contact called Roadside Assistance, who arrived and restarted the vehicle. The contact used a boost charger to start the vehicle. The check engine warning light was illuminated. The trunk opened message was displayed. The vehicle was taken to the local dealer, who informed the contact about NHTSA Campaign Number: 24V107000 (Electrical System). The contact stated that the parts were on backorder. The manufacturer was not contacted. The failure mileage was approximately 80,000.
Steering
1-THE STEERING WHEEL AIRBAG FAILED TO DEPLOY DURING A COLLISIOM WHILE ALL OTHER AIRBAGS `AIRBAGS INCLUDING REAR SEAT AIRBAGS -DID DEPLOY. THIS SUGGEST A POSSIBLE MALFUNCTION IN THE AIRBAG CONTROL MODULE STEERING WHEEL AIRBAG UNIT OR SENSOR SYSTEM. * THE VECHCLE IS AVAILABLE FOR INSPECTION BY GENESIS, NHTSA, OR ANY AUTHORIZED PARTY. 2. AS THE DRIVER I WAS AT DIRECT RISK THE STEERING WHEEL AIRBAG IS DESIGNED TO PROTECT THE HEAD AND CHEST IN A FRONTAL COLLISION. ITS FAILURE TO DEPLOY LEFT ME VULNERABLE TO IMPACT WITH THE STEERING WHEEL AND DASHBOARD. THE LACK OF DEPLOYMENT HAS WORSED THE OUTCOME 3. NOT YET I AM SEEKING A DIAGNOSTIC SCAN FROM GENESIS - CERTIFIED DEALER TO CONFIRM THE FAILURE AND IDENTIFY ANY FAULT CODES IN THE AIRBAG SYSTEM. 4. THE VEHICLE IS BEING ASSIGNED TO AN AJUSTER BUT NOT YET BY GENESIS OR NHTSA. …
I am writing to formally report a serious safety defect in my Genesis vehicle and to request immediate investigation, documentation, and corrective action. Following a recent crash event, my vehicle's diagnostic scan revealed DTC B1378, which is associated with a fault in the airbag system circuitry. This code is widely recognized as an indicator of an airbag defect and is consistent with conditions that warrant manufacturer recall. During the crash: - Multiple airbags deployed, - The steering wheel airbag did NOT deploy, - The SRS system recorded a crash severe enough to trigger other airbags, - The vehicle now displays B1378, confirming an internal fault. The failure of the primary driver airbag to deploy during a crash is a critical safety malfunction. …
Engine & cooling
The contact owns a 2018 Genesis G80. The contact received notifications of NHTSA Campaign Numbers: 24V107000 (Electrical System) and 24V191000 (Engine and Engine Cooling) however, the parts to do the recall repairs were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repairs. The manufacturer was not made aware of the issue. The contact stated that the vehicle was taken for routine maintenance; however, upon leaving the repair center, while driving at an undisclosed speed, there was an alarm followed by the engine overheating. The vehicle was able to be restarted; however, the vehicle was towed to the dealer. The dealer confirmed that parts were not yet available for the recall repair. The failure mileage was approximately 49,000. VIN tool confirms parts not available.
The contact owns a 2018 Genesis G80. The contact stated while driving at an undisclosed speed, there was white smoke coming from underneath the hood. The contact stated that in December of 2019 the vehicle was serviced at the dealer for a service appointment and unknown recall repair for the turbo fluid injector. The contact stated that the vehicle had experienced the failure like the description of the safety recall which was completed in 2019. The vehicle was taken to the dealer. The vehicle was diagnosed with leaking turbo fluid onto the exhaust manifold. The contact stated that the left side turbo oil feed pipe needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 43,628.
2018 Genesis G80 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.8L 6-cyl | 8-speed automatic | RWD | 19 / 27 / 22 |
| 3.8L 6-cyl | 8-speed automatic | AWD | 18 / 25 / 20 |
| 3.3L 6-cyl turbo | 8-speed automatic | AWD | 17 / 24 / 20 |
| 3.3L 6-cyl turbo | 8-speed automatic | RWD | 17 / 25 / 20 |
| 5.0L 8-cyl | 8-speed automatic | RWD | 16 / 24 / 19 |
| 5.0L 8-cyl | 8-speed automatic | AWD | 15 / 23 / 18 |
EPA ratings. Class: Large car.
Frequently asked questions
Is the 2018 Genesis G80 a good car?
There isn't enough complaint history for the G80 to compare model years reliably. So far owners have filed 97 complaints with NHTSA.
What is the most common problem with the 2018 Genesis G80?
The electrical system — 22 complaints, 23% of all complaints for this model year, most often about instrument cluster/panel. Next are the steering (16) and engine & cooling (14).
How many recalls does the 2018 Genesis G80 have?
There are 7 recalls for the 2018 Genesis G80, the most recent from October 8, 2026 (power adjust). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Genesis G80?
The best years by complaints, compared at the same age, are 2020, 2019 and 2024. See the full Genesis G80 years comparison.
At what mileage do 2018 Genesis G80 problems happen?
The median mileage reported in complaints is about 15,000 miles; 83% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.