2023 Genesis G70

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.

NHTSA ID

11765987

Incident

Sep 9, 2026

I noticed my driver head light starting to get condensation after doing further research i found it’s a common manufacturer defect especially for the g70s. I took a further look by removing my front bumper & noticed 3 cracks starting from each screw on the front of the headlight mounting. after doing more research i found out it’s a common manufacture problem with over torquing the screws & after inspection that’s exactly why my headlight lense is cracking from bottom to top, as it’s too much force where the screws are & with hot & cold temperatures plastics & such move creating them to break. my safety is put at risk due to the corrosion building in the headlight causing my blinker to malfunction & my daytime lights to stop working. i’ve got pulled over for my daytime lights not being on as it looked like a headlight was out. it also is causing my car to short sometimes itll turn of driver monitoring & lane departure all of it, i will have lights on the dash for a few seconds or minutes & my car will act strange even when going in reverse the backup camera pulls too much electricity sometimes causing it all to go black & car will die randomly then turn back on after 30min-1hr. & this all only started happening after the headlight started getting corroded. it’s only been 2-3 months this has been going on. it doesn’t happen all the time but what does happen all the time is my daytime light on driver side doesn’t work. i have “check turn signal” warning light on 24-7 & maybe once a week the car will die knowingly even after driving a good distance.

NHTSA ID

11765596

Incident

Sep 15, 2026

The contact owns a 2023 Genesis G70. The contact stated that while the vehicle was parked inside the garage, the contact discovered that passenger’s side headlight was cracked and there was moisture inside the headlight. The contact stated that the moisture inside the headlight affected the operation of the turn signal. While the indicator was engaged, the message "Blinker Compromised" was displayed, and a triangle with an exclamation point was illuminated. The dealer was contacted and informed the contact that the cost of repair was not covered because the vehicle was not under warranty. The manufacturer was made aware of the failure by phone. The failure mileage was approximately 54,000.

NHTSA ID

11764712

Incident

Sep 15, 2026

Mileage

54,000 mi

The contact owns a 2023 Genesis G70. The contact stated that while driving on several occasions at various speeds, the "Turn Signal Error" message was displayed and an orange master warning light was illuminated. The vehicle was taken to the residence, where the contact noticed condensation in the passenger’s side headlight. The contact stated that the passenger’s side turn signal bulb was replaced. The vehicle was then taken to a dealer, and it was determined that the passenger’s side headlight was damaged by an object. The vehicle was not repaired. The insurance company was informed of the issue and notified the contact that the issues were related to common stress factors. The vehicle was then taken to an auto body shop, where it was determined that the seals of the passenger’s side headlight had cracks or holes, causing condensation and water to enter the headlight assembly. The vehicle was not repaired. The contact stated that a week later, the driver's side headlight had a similar failure. The vehicle was taken to a dealer, where it was determined that an impact might have caused the failure. The vehicle was not repaired. The manufacturer was notified of the failure, and a claim was submitted. The failure mileage was approximately 52,000.

NHTSA ID

11750206

Incident

Jun 26, 2026

Mileage

52,000 mi

The vehicle experienced a sudden emergency braking intervention on the highway. Alert came on and it said emergency breaking with curved red arrow and the car slowed down from around 70mph-60mph. Lane assist was on but the car was not on cruise control. The problem was resolved after pressing the accelerator. I was not hit but the could have been a dangerous situation if someone was right behind me.

NHTSA ID

11744691

Incident

Jun 17, 2026

While driving my Genesis G70 on the highway in rainy conditions, the vehicle repeatedly loses traction and hydroplanes at normal highway speeds. The car begins sliding across lanes with very little control. During a prior incident, driver-assist features (lane keeping assist) were active. Rain appeared to interfere with the sensors, and the system malfunctioned by steering incorrectly. The steering wheel became difficult to control, and the vehicle attempted to steer into another lane while traction was already compromised. The vehicle hydroplaned across multiple lanes of the expressway, creating a high risk of collision. The system’s steering input did not match driver intent and made the situation more dangerous. The vehicle ultimately came to a stop near a wall but avoided impact. After this incident, I turned off the lane keeping assist feature. However, the problem continues. On a separate occasion, while entering the highway in rainy conditions, the vehicle immediately began sliding again, indicating an ongoing traction or stability issue even without driver-assist features active. This issue has occurred more than once and creates a serious safety risk to myself and others, as the vehicle becomes difficult to control and does not maintain proper traction in wet conditions.

NHTSA ID

11734626

Incident

Apr 4, 2026

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.

NHTSA ID

11726871

Incident

Jan 9, 2026

The headlights somehow gets condensation/moisture inside of them and when this happens it makes the turning signal faulty and not work properly. A notification pops up in the vehicle that says “check turn signal” and the turing signal does not flash properly. This has happened to my vehicle and I am part of a Facebook group and many of us G70 owners are having the same issue. The dealerships are claiming something cracked the headlights, letting moisture in. But the headlights are not cracked at all and there are an abundant amount of G70 owners having the exact same issue that is very expensive to fix. Some are even paying to get it fixed and still having the same issue after. This should be recalled to make it right and safe for drivers.

NHTSA ID

11726868

Incident

Feb 21, 2026

Some G70 (IK) vehicles may exhibit a false notification from the front Parking Distance Warning (PDW) sensors when there is no object nearby. This may occur when the parts housing the sensor become loose, causing the sensor to falsely detect objects. There is no functional effect on the vehicle other than the false notification. This bulletin provides the procedure to inspect the vehicle and apply repair(s) as needed.

This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2026 1st Navigation Map and Software Update Key Improvements and Additional Improvements tables in this TSB for a list of specific changes. The software can be downloaded via Navigation Updater (NAU) and updated by USB.

Some vehicles may exhibit difficulty starting in cold weather. This bulletin provides the procedure to perform an inspection on the starter magnetic switch for potential freezing and, if necessary, replace the starter magnetic switch (solenoid) assembly.

The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN), that have been identified in U.S. vehicles following prior crashes, theft, or non‑certified airbag replacements. These inflators are not approved for use, may rupture during deployment, and have caused serious injuries and fatalities. Please see attached announcement, provided by NHTSA, for more details.

The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous driver’s-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN). These inflators were not supplied, approved, or authorized by the vehicle manufacturers and have primarily been found in vehicles that previously experienced a crash and underwent airbag replacement using non-genuine parts. These dangerous inflators have ruptured during deployment, posing a serious risk of injury or death due to metal fragments entering the vehicle cabin. To date, Hyundai is aware of three people who have died while driving a Hyundai vehicle with one of these substandard replacement airbag inflators that deployed in what likely would have been a survivable crash. NHTSA has issued a public advisory urging vehicle owners and service professionals to have vehicles inspected if there is reason to believe that a non-genuine replacement airbag may have been installed. Vehicles with salvage or rebuilt titles, prior airbag deployments, or unknown repair histories may present a higher risk. NHTSA strongly cautions against self-inspection by vehicle owners and recommends inspection by trained technicians.

Some 2020MY and newer vehicles equipped with a front view camera may illuminate certain warning lights and trigger DTC C272246 fault code for the front camera. In the following cases, the front camera auto-calibration range may be exceeded while driving: • If the front camera is not properly installed and is completely or partially detached. • In case of excessive changes affecting the vehicle's balance (e.g., loading excessively heavy cargo in a specific location of the vehicle, or significant under-inflation of the tires). • Specific road conditions affecting the vehicle's balance (e.g., excessive road crown) This TSB provides instructions on how to service the vehicle when the front camera related warning light(s) are triggered due to system out of calibration (DTC_C272246).