2017 GENESIS G90 Engine Problems

* Recall Campaign Number : [018G, 019G] I. Statement of Complaint This complaint concerns a failure in a critical safety-related component that was previously addressed under a mandatory manufacturer recall, and the subsequent refusal by the authorized dealership to provide a second no-charge repair for the same repeated failure. II. Chronology of Events * Original Recall Repair: Approximately thirteen (13) months ago, 8/30/2024 the vehicle was taken to Anaheim Hyundai to address a safety recall concerning the oil feed pipe. The prescribed remedy, a replacement of the oil feed pipe, was completed at no cost under the recall campaign. * Second Failure (Current Event): On or about 10/6/2025, while the vehicle’s engine was running, I observed smoke rising from the engine compartment. The vehicle was immediately taken to a local independent mechanic who diagnosed the issue as a burst oil feed pipe—the identical component subject to the prior recall. *...

The contact owns a 2017 Genesis G90. The contact stated that while driving at 50 MPH, the check engine warning light illuminated. The driver immediately pulled over. The vehicle was towed to the local dealer, where it was diagnosed, and it was determined that four crankshaft position sensors and the valve cover gasket needed to be replaced. The vehicle was repaired, but the failure recurred. The contact called the local dealer and was informed that the failure might be related to the timing chain. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 100,000.

The check engine light keeps coming on. We had spark plugs changed and still keeps miss firing. We are unable to switch between drive modes smoothly. We have taken in for service numerous times.

The contact owns a 2017 Genesis G90. The contact stated that while driving at an undisclosed speed, there was smoke coming from underneath the hood. The oil warning light intermittently illuminated. The vehicle was taken to an independent mechanic, who determined that the engine was leaking oil and advised the contact to take the vehicle to the dealer. The vehicle was then taken to the dealer, where it was diagnosed that there was oil leaking from the turbo chargers and the engine block. The contact was not aware of what needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 82,000.

I have replaced my thermostat four times in the last 18 months and I had it towed to the dealership again this morning for the same overheating problems.