2018 Genesis G80 problems & reliability
94 owner complaints filed with NHTSA for the 2018 Genesis G80, alongside 6 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
3 complaints report injuries (5 injured).
Federal crash records (FARS 2020–2023): 2018 Genesis G80 vehicles were involved in 10 fatal crashes with 3 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Electrical System | 22 | 23% |
| Unknown OR Other | 16 | 17% |
| Steering | 15 | 16% |
| Engine | 11 | 12% |
| Air Bags | 9 | 10% |
| Wheels | 9 | 10% |
| Power Train | 5 | 5% |
| Service Brakes | 5 | 5% |
| Structure | 4 | 4% |
| Tires | 4 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 15,000 miles (middle 50% between 6,250 and 41,814 miles), based on 35 complaints that included mileage.
Complaints by incident year
What owners report
“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 after extended driving and does not cool down when the car starts, especially in high‑heat…”
Unknown OR Other · filed Jul 9, 2026
“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 to accident, the door would remain locked and passengers would not be able to escape from inside of…”
Unknown OR Other · filed Jul 8, 2026
“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 the dealer or an independent mechanic to be repaired. The manufacturer was not informed of the…”
Engine and Engine Cooling · filed Apr 23, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Hyundai and Kia ABS Module Fires
Audit Query AQ23002 · opened Nov 17, 2023 · open
Technical service bulletins
97 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2018 Genesis G80. The 10 most recent:
The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous driver’s-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co.…
DTN DL · Other · issued Apr 10, 2026
The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety…
DTN DCS · Other · issued Apr 10, 2026
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…
25-BD-012H TSB · Service Bulletin/Repair Instructions · issued Nov 6, 2025
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…
25-BD-001G-1 TSB · Service Bulletin/Repair Instructions · issued May 30, 2025
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 Verizon’s communication network. Follow the…
25-01-024G-1 TSB · Service Campaign · issued May 8, 2025
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.
25-GI-009G · Service Bulletin/Repair Instructions · issued Apr 29, 2025
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…
25-01-024H EM · Service Campaign · issued Apr 7, 2025
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. Follow the procedure…
25-01-024H TSB · Service Campaign · issued Mar 18, 2025
This procedure 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…
25-BD-001G TSB · Service Bulletin/Repair Instructions · issued Jan 28, 2025
This procedure 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…
25-BD-001HG · Service Bulletin/Repair Instructions · issued Jan 28, 2025
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2018 Genesis G80 has 6 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2018 Genesis G80?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 15,000 miles — budget accordingly if the car is approaching that mileage.