2020 Genesis G80 Electrical system Problems
- Complaints
- 2about this part
- Share
- 18%of 11 total for the year
- Median mileage
- 12,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the electrical system of the 2020 Genesis G80, 18% of the 11 complaints for this model year. Where a mileage was given, the median is 12,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“It is dead everyday and I have to jump it I noticed when I attach a power source it makes very odd noises. I feel the current recall you have on the g80 2020 may be the issue. It runs extremely hot wit no warning lights showing. I have had a lot of brake dust and the car is hot fast. Also issues with usb and when connected to phone it sound like crackling and volume sounds odd unless I unplug and replug. Replaced battery twice in a year”
NHTSA complaint #11587698, filed 2024-05“The contact owns a 2020 Genesis G80. The contact stated that upon starting the vehicle, the check engine warning light was illuminated. The vehicle was taken to the dealer where it was diagnosed that rodents had chewed through the soy-based wire coating. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken back to the dealer who provided the same diagnostic and repaired the vehicle; however, the failure persisted. The vehicle was taken back to dealer where it was diagnosed that rodents had also chewed through the starter wiring. The vehicle was repaired. …”
NHTSA complaint #11459848, filed 2022-04, 12,000 milesRelated service bulletins
- 11018581May 8, 2025Some 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…
- 11017471Apr 29, 2025Certain 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.
- 10253013Apr 8, 2020This bulletin describes the procedure to install an Audio Video Navigation (AVN) software update which repairs a condition in which the radio presets may reset during AVN start up.
- 10253031Nov 18, 2019Certain vehicles (listed below) equipped with the HomeLink5 (Two Way Communication) mirror may experience programming and operating difficulties with the home garage system. This…
Electrical system: other model years
Other parts of the 2020 Genesis G80
4 complaintsBrakes
3 complaintsTires
2 complaintsEngine
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2020 Genesis G80
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology