Genesis G70 check engine light comes on

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 16, 2026 · Fuel system · CA

Vehicle received recall 023G (TSB 24-01-076G) on 4/30/2025 at 42,910 miles for P0088 fuel rail pressure issue, involving ECU update to high-pressure fuel pump control logic. No codes were present at that time and no physical inspection of the pump was performed — only a code scan. Vehicle had no check engine light prior to this recall. On 9/16/2026 at 46,471 miles, P0088 code returned, diagnosed at an independent repair shop. Concerned the recall fix did not address the underlying defect

Filed Sep 10, 2026 · Fuel system · 35,000 miles · MD

The contact owns a 2019 Genesis G70. The contact stated that the vehicle was experiencing starting issues. Additionally, while driving 15-20 MPH and coming to a stop, the vehicle stalled and lost motive power. The vehicle was turned off and restarted and was able to drive to the intended destination. The contact stated that the failure recurred and progressively worsened. While researching the failure online, the contact discovered that the failure was a common issue. The vehicle was initially taken to the dealer, where an unknown software update was performed, and the check engine warning light illuminated during the failure. The vehicle was taken back to the dealer, where it was diagnosed and determined that the fuel pump had failed and needed to be replaced; however, it was determined that the failure was not covered under warranty because a specific DTC indicating that the fuel mixture was too rich was not retrieved. The manufacturer, Genesis, was notified of the failure by phone, filed a case, and scheduled a service appointment with a dealer for the contact. The failure mileage was approximately 35,000.

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 Aug 22, 2026 · Engine, Fuel system · TX

I own a 2019 Genesis G70 3.3T Twin-Turbo V6, VIN [XXX], with approximately 122,000 miles. Twice within approximately two weeks, the vehicle has suddenly and unexpectedly experienced a near-total loss of propulsion while being driven. Without warning, the engine begins shaking and sputtering severely, the Check Engine Light illuminates, and the vehicle provides almost no usable acceleration. The engine does not completely stall but operates barely above a stalled condition. After safely stopping, turning the vehicle off, and restarting it, normal engine operation and full power immediately return and the Check Engine Light extinguishes. The vehicle may then operate normally for days before the condition occurs again without warning. This creates a serious safety hazard because the failure could occur while traveling at highway speeds, merging, changing lanes, or crossing traffic. A sudden near-total loss of propulsion under those circumstances could result in a serious or fatal collision. I have found reports from other Genesis G70 owners describing substantially similar intermittent loss-of-power conditions that temporarily resolve after an ignition restart. Genesis has also issued safety recalls involving G70 powertrain-related conditions, including the federal safety agency Campaigns 24V‑528 and 24V‑191. I have formally notified Genesis Motor America in writing and requested immediate investigation and repair. I am submitting this complaint so the federal safety agency has an independent record of this recurring and potentially dangerous loss-of-propulsion condition and can determine whether it represents a broader safety defect affecting Genesis G70 vehicles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

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 4, 2025 · Fuel system · OH

My 2020 Genesis G70 is affected by Recall 24V‑528 (high-pressure fuel pump defect). About 10 months after the recall service was marked “completed,” my car began showing DTC P0088 (Fuel Rail/System Pressure Too High), which is directly tied to the recall defect. On 8/30/25 car was hesitating when just slowly pulling out of driveway, and check engine light came on and stayed on. The car jerks and vibrates when foot is on the gas. There is now a very strong gasoline odor inside and outside the car, which was also noticed by a Genesis dealership employee when I pulled into the service garage. This raises serious fire and safety concerns. The dealer has told me the fuel pump and fuel line must be replaced. While all parts should be covered, I am currently waiting to hear from the dealership in regards to if Genesis approves/agrees to cover the costs of the repairs needed to my car. I was forced to drive 1 hour and 40 minutes to the nearest Genesis dealership on 9/3 while the car was unsafe, with my child in the vehicle at times. This was extremely dangerous. I was also initially told I would have to either drive the unsafe vehicle back home while waiting for approval or pay for a rental myself. Only after I became very upset and crying, was I given a loaner. That loaner has a 100-mile per day limit, yet I live about 100 miles away from the dealership, making it impractical. This defect is ongoing and unresolved. Genesis has not yet confirmed coverage of all related parts, and I am concerned the recall repair was inadequate. Safety Concerns: Risk of fuel leak/fire from defective pump/fuel system. Strong fuel odor indicating vapor or liquid leak. Unsafe requirement to drive long distance while defect is present. Dealer attempting to deny full repair coverage under recall.

Filed Aug 7, 2025 · NJ

- The shifter inhibitor switch (also known as gear position sensor or range sensor) malfunctioned, triggering a check engine light and causing a warning message on the dashboard indicating “Shifter Malfunction.” Yes, the component is still installed and available for inspection upon request. - The malfunction may cause the vehicle to fail to recognize or shift properly between gears, increasing the risk of sudden loss of drive, inability to shift out of park, or unexpected behavior during driving or parking. This creates a potential safety hazard, especially in traffic or on inclines. - Yes, the issue was diagnosed and confirmed by a Genesis dealership, which recommended replacing the shifter inhibitor switch to resolve the problem. - No, the vehicle has not been inspected by the manufacturer, police, or insurance representatives at this time. Only the dealership has performed diagnostic work. - Yes, the check engine light appeared along with an on-screen warning that read “Shifter Malfunction.” These symptoms appeared and prompted the inspection.

Filed Jan 16, 2025 · Engine, Fuel system · 45,980 miles · FL

The contact owns a 2019 Genesis G70. The contact stated that while driving 45-50 MPH and merging onto the highway, the accelerator pedal was depressed, but the vehicle jerked and failed to respond while the RPMs increased. The contact exited the highway and continued driving at a slow speed. The contact stated that the failure recurred several times while driving and exceeding 30 MPH. The contact received notification of the federal safety agency Campaign Number: 24V528000 (Fuel System, Gasoline); and related the failure to the recall. The vehicle was taken to the dealer, where the engine control module software update was performed; however, the contact stated that while driving from the dealer's parking lot, the check engine warning light illuminated. The vehicle was taken back to the dealer; however, the dealer informed the contact there was no earlier availability to diagnose the vehicle. The dealer referred the contact to Napleton's West Palm Beach Hyundai (2301 Okeechobee Blvd, West Palm Beach, FL 33409), where it was diagnosed that the failure was related to the GDI fuel pump. The second dealer informed the contact that the recall repair was not performed correctly and referred the contact back to the first dealer. The vehicle was not repaired. The manufacturer was notified of the failure and a case was opened. The manufacturer attempted to contact the first dealer, but the first dealer had been unreachable. The manufacturer had not provided any further assistance. The failure mileage was approximately 45,980.

Filed Nov 14, 2024 · Engine, Fuel system · TN

The problem occurred while the engine was on, but I was idle in the drive thru of a local pharmacy. The car had been placed in park, but engine still running while waiting at the window. Suddenly, the car began to shake and multiple indicator lights illuminated then the car completely died. No indicator light was illuminated before this issue. I had driven the car on the interstate to and from a doctor’s appointment in a different part of town that morning with no discernible issues. The car smelled strongly of gas. I was able to restart the car to move it to a safe location for towing, but the engine struggled to start and the car continued to shake violently and more gas smell came from the car. It was turned off as soon as possible and it is now at the dealership for diagnostics and repair. There was a recent recall on my vehicle for a faulty high-pressure fuel pump. My car did not have a check engine light on and did not display the appropriate code to have the fuel pump replaced, so I only received a software update. Because the issue with the recent recall was sudden loss of power that could potentially cause a wreck, I feel that this issue is likely related to the same fuel pump problem but was missed under the previous guidance for repair. In this case, I was lucky it happened while sitting still instead of while I was on a major interstate, or I could have been seriously injured.