2018 Genesis G-Class electrical system problems

“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 NHTSA 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.”

“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.…”

“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.”

“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. 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 NHTSA. 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…”

“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.”

“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”