2023 Genesis G70 Powertrain & Transmission Problems

While driving at highway speed, the vehicle experienced a sustained loss of motive power. Despite the accelerator pedal being fully depressed, the vehicle would not accelerate beyond approximately 62 mph. Based on the symptoms and prior service history, the malfunction appears related to the fuel/propulsion system, engine, or powertrain. The vehicle is currently parked and available for inspection upon request. This failure placed the safety of the occupants and other motorists at risk. The vehicle was unable to safely accelerate, merge, pass, or respond to traffic conditions. Hazard lights were activated, and the vehicle was forced to remain in the slow lane of the highway for an extended period to avoid being struck by faster-moving traffic. The problem was reproducible and occurred repeatedly during the same trip. Acceleration was tested multiple times, and each attempt resulted in the same loss of power with no response to throttle input. The condition persisted for the entire drive. The vehicle has not yet been inspected following this incident. However, the vehicle previously received a manufacturer warranty repair involving replacement of the high-pressure fuel pump, and the manufacturer has issued a warranty extension for this component. The loss of motive power occurred after that repair. No warning lamps, alerts, or messages were observed prior to or during the failure. There were no warning symptoms immediately preceding the loss of motive power. This loss of propulsion at highway speed created a serious and immediate safety hazard due to the inability to maintain normal traffic speed or maneuver safely.

There is a constant wheel bearing-type noise that is distractingly audible above ~40mph, and the whine is load and annoying at ~80mph, coming from the rear of the car. There is a constant droning and harmonic pulsating noise that cannot be attenuated with the car's active noise suppression technology, either. It is an otherwise wonderful car, but this whining is going to become more of an issue now that summer is here and the windows will be down. The pitch of the whine increases in frequency as the road speed increases, and right/left steering movements or accelerate/de-accelerate activities don't seem to affect the intensity of the rearend bearing noise. The ever-present noise (our mileage of just over 25k) has grown over the last ~5k miles to be rather unpleasant inside of the cabin, and our current scheduled maintenance visit did not produce a solution for the ever-present noise.

The contact owns a 2023 Genesis G70. The contact stated that while driving at various speeds and depressing the accelerator pedal, the vehicle responded sluggishly while the RPM was extremely elevated. The contact stated that the failure was more significant while attempting to exceed 30-40 MPH. There was no warning light illuminated. The contact stated that the failure had been recurring intermittently. The contact stated that upon turning off and restarting the vehicle, the vehicle operated as needed. The vehicle was taken to the dealer, where the failure could not be replicated; however, the failure recurred. The vehicle was taken back to the dealer, where it was test-driven, and the failure recurred; however, the dealer later informed the contact that, upon attempting to diagnose the vehicle, the failure could not be replicated. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 25,000.

I have had my car for almost 6 months and in that time frame twice my car while driving on the highway my car went into limp mode and was not responding. I was unable to accelerate. It was almost like I wasn’t able to control my car. All lights on the dash came on. I recieved DTC error code p061b00. My car so far has 7000 miles on it and I leased it in November 2023. After shutting the car off for a while the car would go back to normal with just the check engine light and and shortly after the check engine light would go away too. I don’t feel comfortable driving my vehicle at this point. Please help with this situation