2018 Genesis G80 electrical problems

Filed Oct 28, 2026 · Electrical, Engine · TX · fire

This complaint is filed regarding an under-hood thermal fire incident and unauthorized modification involving a federally mandated safety recall for a 2018 Genesis G80 (VIN: [XXX]). To resolve a starting issue, technicians at Van Hyundai in [XXX], bypassed the standard ignition circuit and installed an un-fused manual starter bypass switch kit. This bypass directly conflicted with active the federal safety agency Safety Recall Campaign 24V107000, which requires a specific fused relay kit (Part 91950-DH15KQQH) to prevent engine fires. This unauthorized, un-fused modification caused a severe electrical short and a subsequent thermal fire incident under the hood. The fire physically melted and destroyed the recall component and adjacent wiring infrastructure. The dealership and corporate office are now refusing to fix the fire damage they caused unless I pay out of pocket. I request an immediate federal investigation into this hazardous repair practice that completely compromised a critical safety recall remedy. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jan 12, 2026 · Airbags, Electrical · MD · crash

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. Combined with the presence of B1378, this raises substantial concerns regarding a defective airbag module, wiring harness, or sensor — all of which fall under manufacturer responsibility and federal safety standards. I am requesting the following: Immediate corrective action, including repair or replacement of all defective components. Documentation of this issue in your internal safety‑defect tracking system. Given the severity of this failure and its implications for driver safety, I am also submitting this information to the federal safety agency for review. Please confirm receipt of this letter and provide a written response outlining the next steps. Sincerely, [XXX] Hagerstown, MD --- INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jan 7, 2026 · Electrical · GA

There is a known issue with these vehicles where the Oil Pressure Sensor/Switch triggers at idle and low RPMs but nothing is necessarily wrong other than the sensor itself. However, since the sensor malfunctions, owners can’t know if the pressure is actually bad or if oil levels are normal. This is a safety concern for all owners. However, Genesis is requiring owners to pay around $3000 to repair this. Most of the models are 2017-2019, which are past its manufacturer warranty years.

Filed Nov 17, 2025 · Airbags, Electrical · MD · crash

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, the federal safety agency, 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 the federal safety agency. I am requesting a formal inspection by genesis and will provide access to the vehicle. 5. There was no warning lights or messages prior to the incident. 6. I was navigating a turn when a deer entered the roadway I swerved and the front right wheel became struck causing me to strike an embankment. The control arm broke and the impact triggered full airbag deployment including rear seat airbags but not the steering wheel airbag based on the severity and location of the impact, the steering wheel airbag should have deployed. I believe this failure may be due to a sensor malfunction or defect in the airbag system. This raises concerns regarding the reliability of the vehicle’s safety mechanisms, as the absence of steering wheel airbag deployment during such a significant frontal impact posed a serious risk to driver safety.

Filed Nov 9, 2025 · Electrical · FL

A/C does not work as blower will not put out cold air. During hot days in Florida with children and elderly in the car this poses a risk to our health. This happens when A/C has been on for approximately one hour. No warning messages whatsoever. This has been reported by many Genesis G80 owners who own a G80 from the years 2017 - 2020. Genesis Corporate is aware of the problem but has not submitted a recall.

Filed Jul 7, 2025 · Electrical · NY

Rear left door lock actuator has failed. Door will not open from inside or outside. There is no emergency release of any kind. This is a major safety concern as in the event of an accident occupants could be stuck inside the vehicle. This is a known issue with this model as well as several Hyundai/Kia models

Filed Feb 28, 2025 · Electrical · TX

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.

Filed Feb 19, 2025 · Electrical · FL

Air conditioner freezes up and blows hot air in very hot weather. Causes dangerous driving environment.

Filed Feb 18, 2025 · Electrical · AL · crash

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.

Filed Dec 3, 2024 · Electrical, Engine · CA

There are two safety recalls, one for the starter and one for the turbo oil supply line, both have potential for a fire concern and the manufacturer has failed or is unable to remedy this safety recall for my vehicle in a timely manner.