The 2018 Genesis G80 Service and Repair Manual is a practical, workshop-ready reference for maintenance, diagnostics, and repairs. Use it to troubleshoot symptoms, follow step-by-step procedures, verify specifications, and confirm wiring and connector locations before replacing parts.
Ideal for technicians and DIY owners, it supports everything from routine service to deeper mechanical and electrical work—including drivability, no-start, warning lights, overheating, brake and suspension issues, HVAC faults, and circuit testing.
Trims covered
- 3.8 Sedan 4-Door
- 5.0 Sedan 4-Door
- Sport Sedan 4-Door
Engines covered
- 3.3L 3342CC V6 GAS DOHC Turbocharged
- 3.8L 3778CC 231Cu. In. V6 GAS DOHC Naturally Aspirated
- 5.0L 5038CC V8 GAS DOHC Naturally Aspirated
What’s inside
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
Why this manual matters
- Faster diagnostics with system-based troubleshooting and wiring diagrams
- Clear procedures and reference sections to reduce guesswork and rework
- Helpful for maintenance planning and verifying parts/specs before repairs
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 sea
In the event of a crash, if the front passenger air bag deploys instead of being deactivated when a
Hyundai will notify owners, and dealers will reprogram the OCS, free of charge. The recall began Au
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 loos
Oil leaking onto the exhaust manifold increases the risk of a fire.
Hyundai will notify owners, and dealers will replace the turbocharger oil supply pipe, free of charg
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
An engine compartment fire while parked or driving can increase the risk of injury.
Owners are advised to park outside and away from structures until the recall repair is complete. De
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.
An electrical short circuit inside the ABS module could cause an engine compartment fire while parke
Owners are advised to park outside and away from structures until the remedy is complete. Hyundai w
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
An oil leak in the presence of hot engine components can increase the risk of an engine compartment
Dealers will replace the left turbocharger oil feed pipe, free of charge. Owner notification letter
The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous drivers-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN). These infla
The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driverside airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN),
This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside th
This bulletin provides repair information for the dark chrome trim when stains are present. Some stains may occur from hard water or cleaning chemicals used during a car wash. Follow the procedures below to replace the affected dark chrome
Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Connected Car Services functions. This may be due to an irregular disconnection on Verizons communication network. Follow the procedure in this TSB to
Certain Genesis vehicles may experience an inoperable horn from moisture or carbonization at the contact point. This bulletin provides a guide to inspect and replace the horns.
Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon's communication network. If you are experiencing issues with remot
Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizons communication network. Follow the procedure in this TSB to reesta
Showing the 8 most recent of 54 technical service bulletins on file with NHTSA.
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 de
I WAS IN A ACCIDENT SEVERE ENOUGH TO DEPLOY ALL AIR BAGS BUT MY STEERING WHEEL, I WENT TO GENESIS WITH THE ISSUE AND THEY INSPECTED THE CAR WHEN THEY EDR REPORT CAME BACK EVERYTHING MATCHED BUT THE MO
I hit a grass wall after striking a deer who bent my control arm and all airbags DEPLOYED BUT THE ONE WHO SAVES THE DRIVER THE MOST IMPORTANT AIRBAG
The contact owned a 2018 Genesis G80. The contact stated that while driving at an undisclosed speed during the night, a deer hit the contact's vehicle on the front passenger side. The vehicle spun aro
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 vehicleâ
Showing the 5 most serious of 114 complaints filed with NHTSA.
