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Electrical systemPart report

2018 Genesis G80 Electrical system Problems

Complaints
22about this part
Share
22%of 98 total for the year
Median mileage
49,000miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 22 complaints about the electrical system of the 2018 Genesis G80, 22% of the 98 complaints for this model year. Where a mileage was given, the median is 49,000 miles. 3 of these say a crash was involved, according to the filers. 1 recall campaign on record is filed under a similar system.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“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. …”

NHTSA complaint #11710394, filed 2026-01

“Reverse lights no longer illuminate when placing car into reverse. This is a safety issue as cars behind me are not made aware if I am wanting to reverse until they see the car in motion.”

NHTSA complaint #11645647, filed 2025-02

“Whenever I drive long distance like 1 or more hours, AC has problem. It worksd fine in short local distance. I see a lot of drivers have the same issue if you click the link below. During the hottest season, it can become very dangerous. I live in San Angelo, TX, and there is no Genesis dealership in here. Hyundae dealership couldn't figure it out. The nearest Genesis dealership takes 3 hours from my house. I paid for extended warranty which will expire within 4 months, and its useless unless it can get fixed. …”

NHTSA complaint #11614072, filed 2024-09

“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. **yes 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. …”

NHTSA complaint #11699927, filed 2025-11

“Oil light keeps coming on suddenly, I looked online and there are many people who have had the same issue. It's only intermittent, and turns off when moving and turns on when idle. The first time it came on was when I was crawling on a first time in forever frozen Alabama road. I was very careful not to start sliding, and when the sign came on I panicked and ended up in a ditch. The safety issue comes from not knowing if this is a sensor issue or an actual oil issue. Most people stated that it was a sensor issue but to replace it, you must access inside of the motor.”

NHTSA complaint #11643428, filed 2025-02

Related recalls

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2026222%
2023222%
2022229%
2021222%
2020218%
2019830%
20182222%
20172233%

Other parts of the 2018 Genesis G80

Other or unknown
18 complaintsSteering
16 complaintsEngine
12 complaintsAir bags
9 complaintsWheels
9 complaintsBrakes
7 complaintsTransmission and drivetrain
5 complaintsBody and structure
4 complaintsTires
4 complaintsEngine cooling
3 complaintsExterior lighting
2 complaintsSeats
2 complaints

← All problems reported for the 2018 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