Genesis G70 loss of power problems

Filed Oct 7, 2026 · Engine, Fuel system · MI

I had a sudden loss of power when driving and the car would not start back up. It could be due to the current HPFP recall that is active on the car. The Genesis Southfield, MI dealership was informed about my car being a Canadian VIN and they accepted to take my car. So I tow it there for $500 and then they refuse to work on it saying they “are not allowed to do recall campaigns on Canadian VIN”. I called Genesis Canada to which they said if the dealership calls them they can send them the foreign work process documentation. However the dealership was adamant on not performing the recall and I had to send it to an independent mechanic. Wasting $700 total on tows which they did not even acknowledge. The car is currently getting diagnosed however a manufacturer dealership MUST be responsible for active recalls, especially since my car is registered in the USA. Genesis needs to reimburse me if I have any out of pocket costs due to the recall.

Filed Sep 21, 2026 · Engine · GA

My 2023 Genesis G70 has recurrent, intermittent engine power loss and stalling while driving, including on highways. The check engine light comes on intermittently and the engine can run roughly. After a stall, restarting can restore operation, but the issue recurs. Unexpected power loss in highway traffic puts occupants and other road users at risk. The exact failed component is UNKNOWN. The vehicle had repeated prior visits to Genesis of Auburn without resolving the concern. Southtowne Hyundai and Genesis of Newnan held it from August 19 to September 4, 2026. Repair order 184931 documents the stalling complaint and reports of misfires on cylinders 2, 4 and 6. It records multiple test drives, inability to duplicate the concern, and no stored or active diagnostic trouble codes at that visit. The vehicle was returned without a repair for this concern. On September 9, 2026, five days after pickup, the same stalling/loss of power recurred. The Genesis diagnostic system reported P0300, P0302, P0304 and P0306 at 67,847 miles immediately afterward. I sent Genesis Consumer Affairs videos and the diagnostic information that day. On September 16 I requested another appointment and a loaner because of the continuing highway stalling. After a September 21 follow-up, the dealer offered late October diagnostics with no rental. Genesis later offered an expedited September 23 appointment; I requested September 24 because of a transportation constraint. The condition remains unresolved as of this report. I request review of this recurring safety concern. Service records, diagnostic screenshots and videos are available. The vehicle can be made available for inspection by arrangement. Precise driving speed and the first occurrence date are UNKNOWN.

Filed Sep 1, 2026 · Engine · FL

But it started by my car constantly burning all like a crazy amount and then I sort of having problems with like the air conditioner, not blowing cool because if I would circulate it in the car, it would not be cool and then I started having Coach go off code for my fuel sensor code for my CO2 sensor code for all different sensors every time I take it they would be trying to give me a change sensor and charging me $2000 to do this and charging me $1500 to do that and then then I find out that there is then someone finds a pipe with my turbo that is deteriorating and now they want to change that and it just keeps my motor keeps getting hot you getting excessively hot. I mean I’m going through two or 3 quarts of all a week and my car. I have four Genesis vehicles I have two G7 I have a G 80 and I have a GV 70 and this is the only one I’m having problems with and it is the and I’m very disappointed with the situation now because I feel like it’s just they just want me to keep putting money into this and I’m and now I’m gonna and my car is only four years old. It’s been paid off since I bought it and I’ve had no problems in all of a sudden. It’s like I’m gonna be out $6000 soon and it’s just I don’t understand why what’s going on and then I see that there’s a recall that I’m not part of with my VIN number, but yet every single one of the problems that I’m having is because of that and not to mention, they have me change all the sensors and stuff that I probably didn’t even need to change so I’m very outright right now because they’re trying to charge another $2000 to do this pipe when they done all these other things and they could’ve done the pipe first I feel like they’re just trying to get money out of me to mention now if I drive my car for more than 45 minutes, the engine light comes on and it goes into lag motor just started losing power and I have to pull over and Stop and they add oil and then I can drive again absolutely insane

Filed Mar 24, 2026 · Engine, Fuel system · NC

While accelerating to highway speeds, the vehicle suddenly experienced a significant and continuous loss of power. Even with the accelerator fully pressed, the vehicle would not increase speed beyond roughly 50 mph. Based on the behavior and previous service history, the issue appears to be related to the engine, fuel delivery system, or overall powertrain. The incident created a serious safety concern for both the occupants and surrounding traffic. The vehicle could not properly accelerate, merge, or respond to normal highway conditions. Hazard lights had to be activated, and the vehicle remained in the slow lane for an extended period to avoid faster-moving traffic. The issue was consistent and repeatable throughout the drive. Multiple attempts to accelerate resulted in the same lack of response, and the loss of power persisted for the duration of the trip. The vehicle has not yet been inspected following this occurrence because when turned off and turned back on, the issue goes away and happens sporadically. It is also worth noting that the vehicle previously underwent a manufacturer-covered repair involving the high-pressure fuel pump, for which a warranty extension had been issued. This loss of power occurred after that repair was completed. No warning lights, alerts, or prior symptoms were present before or during the incident. Overall, the sudden loss of propulsion at highway speed posed an immediate safety risk, as the vehicle was unable to maintain appropriate speed or safely maneuver with traffic.

Filed Mar 16, 2026 · Engine, Fuel system · GA · fire

I went go put gas in the car but as I start driving I was riding lost power of the car I pulled over but it was a school bus behind me that the bust drive had called the police I got out the car I seen smoke from the passionate side of the car seeing smoking. So I step back seen that the motor was on fire then it started busting out the windows and tires. It burnt up the car so bad that they had go get more water. Engine & fuel pump is the components that need to be checked upon request. & not yet it haven't been expected about the insurance yet but they is going too, safety risk caught on fire.

Filed Feb 12, 2026 · Fuel system · FL

My vehicle is covered under Safety Recall 023G involving an ECU update, inspection for DTC P0088, and high-pressure fuel pump replacement if inspection criteria are met. The recall is listed as completed, however the high-pressure fuel pump was not replaced, and the dealer has refused replacement. Only an ECU update was performed. I continue to experience fuel pressure–related symptoms consistent with the recall condition. The dealer has declined further action and has not provided documentation showing inspection results or justification for non-replacement. I believe the recall was improperly completed, creating a safety risk due to potential loss of engine power or stalling. I am requesting the federal safety agency review.

Filed Feb 8, 2026 · Engine, Fuel system · MD

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.

Filed Feb 6, 2026 · Engine, Fuel system · TX

The fuel delivery system, specifically the fuel pump and fuel rail pressure system, has malfunctioned and continues to trigger diagnostic trouble code P0191 (fuel rail pressure sensor range/performance), despite a prior recall-related software update performed by the dealer, and the vehicle and all affected components are available for inspection upon request. While driving on the highway, the vehicle suddenly began stalling, hesitating, and hard jerking before losing power and entering limp mode, limiting speed to under 50 mph and forcing me to immediately pull over, which created a serious safety risk to myself and other drivers due to the sudden inability to maintain highway speeds. The issue has been confirmed by an authorized dealer through repeated diagnostic scans showing the same fuel system fault codes, and the dealer has determined the fuel pump now requires replacement, indicating the recall update did not resolve the underlying failure. The vehicle has been inspected by the dealer on behalf of the manufacturer, and prior to the failure the check engine light illuminated and has remained on since, with symptoms escalating abruptly and occurring without warning, making this an ongoing and unpredictable safety issue.

Filed Sep 19, 2025 · Fuel system · MD

Vehicle: 2022 Genesis G70 Mileage at failure: ~46,000 miles Description of problem: While driving, my vehicle suddenly lost power and became unable to accelerate properly. I was nearly struck by a truck because the car lost all motive power in traffic without warning. This is extremely dangerous and could have caused a serious accident. The vehicle had already received the fuel pump recall repair in December 2024 Despite this, in September 2025 the vehicle required replacement of the fuel injectors under warranty due to failure. Safety concern: A car with only ~46,000 miles should not experience fuel system failures of this magnitude. Having both a recall repair and injector failure at such low mileage raises concerns about widespread defects in the Genesis G70 fuel system. Action requested: I am requesting the federal safety agency to investigate repeated fuel system failures (fuel pump and injectors) in 2022 Genesis G70 vehicles. These failures create a significant risk of crashes due to sudden stalling or loss of power.

Filed May 10, 2025 · Electrical, Fuel system · NY

The car randomly goes into LIMP mode when driving in every condition going at any speed, the car has a significant loss of power and needs to be restarted to gain power back. I have almost crashed because of this problem numerous times. Genesis dealership refuses to fix anything because the car doesn't bring back any error codes. This has happened to new and older G70s, there has also been numerous LEMON LAW buy packs under this exact LIMP mode issue being way more prevalent. I have gotten the supposed "fuel pump" recall which is what is directly affecting this issue and the problem persists. Genesis is aware of the issue and extended the dual pump warranty extensively. My car is extremely unsafe at random intervals during my daily commute. This issue is extremely dangerous and could cause a horrific crash. The car basically turns into a slug even when flooring the pedal to try and speed up, this makes merging and changing lanes on these New York highways extremely dangerous. There is an inherent problem with the design of this car in terms of how the fuel pump and fuel pump sensors operate. Genesis is aware of the issue and does nothing to fix it because wait for catastrophic failure of a competent and worse a crash that could result in a fatality.