2026 Genesis GV70 problems

VISIBILITY/WIPER

Component Focus: ENGINE AND ENGINE COOLING / VISIBILITY/WIPER/DEFROSTER (HVAC) Description of Safety Defect: My brand-new 2026 Genesis GV70 Turbo (under 5,000 miles) suffered a sudden, catastrophic cooling system and heater core failure while in operation. The vehicle has a severe design defect: it completely lacks a low-coolant fluid level sensor in the expansion reservoir. Because of this engineering omission, the vehicle dropped its coolant level completely below the minimum safety line and filled the enclosed passenger cabin with highly toxic, atomized ethylene glycol (antifreeze) chemical vapors through the HVAC vents without triggering a single dashboard warning light, chime, or error code. The climate control system simultaneously malfunctioned, dropping fan speeds when stopped and forcing occupants to breathe in the concentrated toxic fumes. This is a severe health and safety hazard. A driver could easily be overcome by hazardous chemical vapors or experience sudden engine failure at highway speeds because the vehicle provides zero electronic warning of a critical coolant loss. Local authorized dealerships refused to accommodate the vehicle or provide a safe loaner vehicle despite the car being completely undriveable and chemically hazardous to sit inside. The vehicle is currently disabled at a dealership

NHTSA complaint #11756637 — an unverified report by a vehicle owner.

STEERING

While driving at 35mph on a straight section of road the warning sounded, the display said "steering wheel locked" and I could not turn the steering wheel for about 5 seconds, then it returned to normal operation. We bought the car new in July 2025. I found numerous posts on line describing similar or worse experiences. The dealership performed tests and could not determine a cause.

NHTSA complaint #11754710 — an unverified report by a vehicle owner.

POWER TRAIN

On XXX while driving at approximately 5mph in a parking lot my Genesis GV70 shifted from Drive to Park by itself causing the car and my wife and I to lurch forward and come to a stop! The car would not come out of Park and a warning came up after the fact saying to contact immediate service. My wife and I were in the car and there were no injuries. If this occurred at a higher rate of speed on a busy highway I cannot imagine what would have happened. I immediately called Genesis Road Assistance for a tow. The car was towed by flat bed to the dealer in [XXX], where I purchased the car, approximately 10 miles away where it sits today waiting for service. My wife and I are afraid to drive this car ever again as it is brand new with only 250 miles on the odometer. *No warnings of any kind prior to the incident. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11749808 — an unverified report by a vehicle owner.

SEATS

while driving the vehicle, the driver's seat moves to the furthest position, away from the steering wheel and pedals. The memory position or forward/back control does not work consistently to put the seat in a more comfortable seating position. This is a random occurrence that can happen several times a day everyday or once or twice every other month. It is unsafe during taking off from a light, as the seat moves back I can barely reach the accelerator. During braking, it's harder to apply pressure to the brake pedal. Also, my mirrors are harder to use because of the different seat position. I have an appointment coming up but it will have been well over a month since I told the service department. I have some video of the controls not working after the seat has moved back, but it is harder to get video while the seat is moving back and I'm driving. This has been an issue since SEP 2025 or so, but it has been happening a lot more recently this past month

NHTSA complaint #11746714 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

2026 GV70, rattle onset at exactly 50 mph. Aero-induced (not road-surface dependent) Local dealer service department confirmed the same rattle on two other 2026 GV70s on the lot.

NHTSA complaint #11737183 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

The driver‑side display on my 2026 Genesis GV70 randomly goes black or becomes distorted. This defect is included in Recall No. 26V019. Despite this, Genesis Consumer Affairs and the dealership (Homestead Hyundai/Genesis) refuse to perform the required software update that corrects the issue, claiming the vehicle is “already updated” — a statement that directly contradicts the official Genesis documentation, which I personally obtained. Instead of applying the required software upgrade, the dealership replaced the monitor. The replacement failed in the exact same way, proving the issue is not hardware‑related. When the driver‑side display goes black, I lose critical driving information, creating a clear safety concern. They refuse to update software.

NHTSA complaint #11732547 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

I leased a 2026 Electric GV70 from Genesis in June 2025. In January of 2026, when driving the car I got a warning sign to stop the vehicle and check the battery supply. At that point, the car went into sever power reduction and would only go 20 MPH or so. After 20-30 minutes, the car completely shut down and became inoperable. Luckily, I was near home and was able to get my car home. I had to have the vehicle towed on wheels as it was completely frozen to the dealership. They diagnosed it as a failure of the Integrated Charging Control Unit (ICCU). They replaced the ICCU but identified other issues that to this day are unresolved and my car is still in the shop. These cars were subject to a recall for ICCU failure but only to model year 2025. These ICCUs are continuing to fail on the 2026 models, and at an alarming rate. The head of service at the dealership told me they were dealing with "hundreds" of ICCU failures on Hyundai/Genesis vehicles. If I had been on a highway traveling at higher speeds and the car suddenly lost almost all power and would only drive for another few miles before completely shutting down, it would have created a dangerous situation. These cars need to be recalled - again. Hyundai/Genesis clearly dont know how to make electric cars/battery packs that work and should be held accountable. I believe they are downplaying this situation due to the prior recalls/class action lawsuits and dont want to experience further reputational damage.

NHTSA complaint #11731269 — an unverified report by a vehicle owner.

ENGINE

I leased a 2026 Electric GV70 from Genesis in June 2025. In January of 2026, when driving the car I got a warning sign to stop the vehicle and check the battery supply. At that point, the car went into sever power reduction and would only go 20 MPH or so. After 20-30 minutes, the car completely shut down and became inoperable. Luckily, I was near home and was able to get my car home. I had to have the vehicle towed on wheels as it was completely frozen to the dealership. They diagnosed it as a failure of the Integrated Charging Control Unit (ICCU). They replaced the ICCU but identified other issues that to this day are unresolved and my car is still in the shop. These cars were subject to a recall for ICCU failure but only to model year 2025. These ICCUs are continuing to fail on the 2026 models, and at an alarming rate. The head of service at the dealership told me they were dealing with "hundreds" of ICCU failures on Hyundai/Genesis vehicles. If I had been on a highway traveling at higher speeds and the car suddenly lost almost all power and would only drive for another few miles before completely shutting down, it would have created a dangerous situation. These cars need to be recalled - again. Hyundai/Genesis clearly dont know how to make electric cars/battery packs that work and should be held accountable. I believe they are downplaying this situation due to the prior recalls/class action lawsuits and dont want to experience further reputational damage.

NHTSA complaint #11731269 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

I leased a 2026 Electric GV70 from Genesis in June 2025. In January of 2026, when driving the car I got a warning sign to stop the vehicle and check the battery supply. At that point, the car went into sever power reduction and would only go 20 MPH or so. After 20-30 minutes, the car completely shut down and became inoperable. Luckily, I was near home and was able to get my car home. I had to have the vehicle towed on wheels as it was completely frozen to the dealership. They diagnosed it as a failure of the Integrated Charging Control Unit (ICCU). They replaced the ICCU but identified other issues that to this day are unresolved and my car is still in the shop. These cars were subject to a recall for ICCU failure but only to model year 2025. These ICCUs are continuing to fail on the 2026 models, and at an alarming rate. The head of service at the dealership told me they were dealing with "hundreds" of ICCU failures on Hyundai/Genesis vehicles. If I had been on a highway traveling at higher speeds and the car suddenly lost almost all power and would only drive for another few miles before completely shutting down, it would have created a dangerous situation. These cars need to be recalled - again. Hyundai/Genesis clearly dont know how to make electric cars/battery packs that work and should be held accountable. I believe they are downplaying this situation due to the prior recalls/class action lawsuits and dont want to experience further reputational damage.

NHTSA complaint #11731269 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

When stopped at a stoplight with my foot on the brake and the transmission in drive (D), after 15-30 seconds, the transmission shifts into park and the engine starts. (the autostart was in the default position). This has occurred repeatedly. The the autostart button is pressed and the light is on, the transmission reacts normally. I have a video but it is larger than 10MB

NHTSA complaint #11728732 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

Hyundai/Genesis 2026 GV70 2.5T Advanced. Drivers side instrument cluster goes blank/black, dangerous. Contacted Genesis Customer Care, doesn't know how to fix my model/trim. Representative, hung up on me. Dealer: Homestead Hyundai/Genesis doesn't have tools to fix the problem..

NHTSA complaint #11727873 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Hyundai/Genesis 2026 GV70 2.5T Advanced. Drivers side instrument cluster goes blank/black, dangerous. Contacted Genesis Customer Care, doesn't know how to fix my model/trim. Representative, hung up on me. Dealer: Homestead Hyundai/Genesis doesn't have tools to fix the problem..

NHTSA complaint #11727873 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Without any warning, on March 15, 2026, I turned out of a parking lot onto a major road and I noticed it wouldn't accelerate above 20 mph, so I pulled off the road. I tried again and my vehicle still failed to accelerate. And on my third attempt, my vehicle decelerated and was about to completely stall. I managed to turn into a parking lot and avoid getting rear ended. However, this could have been a fatal event. While I was trying to accelerate, the vehicle was quiet as if the car wasn't even running. After shutting the engine off for awhile, I was able to drive the vehicle with caution. I reached out to two Genesis service departments regarding my vehicle failing to accelerate while driving and neither had heard any previous complaints, and the earliest appointment would be mid April. There was no sense of urgency, as I'm left to hesitantly drive my vehicle at the risk of it happening again and getting rear ended. And when my vehicle does go in for service, I'm weary whether the problem will be resolved properly since the service department is unaware of the issue. In addition, I have had this vehicle for only 4 months and 1 month into it, I already took it to service because of fuel odor that had not gone away since the day 1. But the service department didn't find anything wrong with the vehicle, so nothing was done to it. I also swung by another Genesis service department, in case they happened to be familiar with the cause of the odor. My vehicle still has the fuel odor and now I'm wondering if that is related to my vehicle not accelerating. I am seeking your assistance to ensure that the problems with my vehicle are confidently resolved. And I wouldn't want this to happen to anyone else. I am thankful, I was driving and not my teen.

NHTSA complaint #11726876 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

Without any warning, on March 15, 2026, I turned out of a parking lot onto a major road and I noticed it wouldn't accelerate above 20 mph, so I pulled off the road. I tried again and my vehicle still failed to accelerate. And on my third attempt, my vehicle decelerated and was about to completely stall. I managed to turn into a parking lot and avoid getting rear ended. However, this could have been a fatal event. While I was trying to accelerate, the vehicle was quiet as if the car wasn't even running. After shutting the engine off for awhile, I was able to drive the vehicle with caution. I reached out to two Genesis service departments regarding my vehicle failing to accelerate while driving and neither had heard any previous complaints, and the earliest appointment would be mid April. There was no sense of urgency, as I'm left to hesitantly drive my vehicle at the risk of it happening again and getting rear ended. And when my vehicle does go in for service, I'm weary whether the problem will be resolved properly since the service department is unaware of the issue. In addition, I have had this vehicle for only 4 months and 1 month into it, I already took it to service because of fuel odor that had not gone away since the day 1. But the service department didn't find anything wrong with the vehicle, so nothing was done to it. I also swung by another Genesis service department, in case they happened to be familiar with the cause of the odor. My vehicle still has the fuel odor and now I'm wondering if that is related to my vehicle not accelerating. I am seeking your assistance to ensure that the problems with my vehicle are confidently resolved. And I wouldn't want this to happen to anyone else. I am thankful, I was driving and not my teen.

NHTSA complaint #11726876 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Got a "power limited, check electrical system" warning when starting the car. Towed it to the dealership and they told me the ICCU failed and it needs to be replaced. It has been over 5 weeks and still waiting for the part to be back in stock.

NHTSA complaint #11725639 — an unverified report by a vehicle owner.

ENGINE

I have not had no incident yet but my 2026 Genesis GV70 3.5 UNINTENDED ACCELERATION BY ITSELF. WHEN THE ENGINE IS COLD UPON STARTING THE VEHICLE ACCELERATE BY ITSELF. WHILE COASTING THE VEHCLE ACCELERATE, i ALMOST HIT THE GARAGE DOOR. A recall should be called on all 26 model GV SERIES. This should be looked at before someone gets injured. The service advisor informed me all 26 GV MODELS DOES THAT. Thank YOU FOR YOUR TIME. Mr. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11724022 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

The contact owns a 2026 Genesis GV70. The contact stated that while driving approximately 35-40 MPH after charging the vehicle, an unknown warning light was illuminated. The vehicle automatically called Genesis Connected Services, which advised the contact to tow the vehicle to the dealer for a diagnostic test. The contact was able to drive to the residence. The Mobile App displayed Diagnostic Trouble Codes: P1AA700 and P1AAF00 for the electric battery management system. The vehicle was towed to the dealer, where it was determined that the battery management system needed to be replaced. The dealer informed the contact that the repair was pending approval. The vehicle was not yet repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 1,889.

NHTSA complaint #11722474 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

Tried to start the car and got a several warnings of "turn off vehicle and check EV system" and "power limited". This is similar to the ICCU failure issue other people have reported.

NHTSA complaint #11716943 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

National Highway Traffic Safety Administration Office of Defects Investigation 1200 New Jersey Avenue SE Washington, DC 20590 Subject: Safety Defect Complaint – Integrated Charging Control Unit (ICCU) Failure Vehicle: 2026 Genesis GV70 Electrified (EV) VIN: [XXX] To Whom It May Concern, I am submitting this complaint to report a safety-related failure involving my 2026 Genesis Electrified GV70, which experienced a sudden “Check Electric Vehicle System” warning consistent with a failure of the Integrated Charging Control Unit (ICCU). Incident Summary On February 5, 2026, at approximately 4,480 miles, the vehicle displayed a “Check Electric Vehicle System” alert and was no longer safe to operate. Due to the risk of propulsion loss and electrical system malfunction, the vehicle required flatbed towing to an authorized Genesis dealership for evaluation. A dealership service advisor subsequently informed me that the vehicle has been diagnosed with an ICCU failure, a component responsible for charging the 12-volt battery and maintaining critical electrical systems. Failure of this component can result in loss of drivability, propulsion limitations, or vehicle shutdown, creating a significant roadway safety hazard. Safety Concern Failures of the ICCU have been widely reported across Hyundai, Kia, and Genesis electric vehicles and have been the subject of prior recalls due to the potential for unexpected loss of motive power while driving. Despite prior recall actions, failures continue to occur, including in my vehicle. Current Status The vehicle remains out of service pending repair, and no written repair completion timeline has been provided. The failure rendered the vehicle unusable and required emergency towing. I respectfully request that the Office of Defects Investigation review continuing ICCU failures affecting Genesis, Hyundai, and Kia electric vehicles to determine whether additional corrective action or expanded remedies INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATIO

NHTSA complaint #11716623 — an unverified report by a vehicle owner.

ENGINE

National Highway Traffic Safety Administration Office of Defects Investigation 1200 New Jersey Avenue SE Washington, DC 20590 Subject: Safety Defect Complaint – Integrated Charging Control Unit (ICCU) Failure Vehicle: 2026 Genesis GV70 Electrified (EV) VIN: [XXX] To Whom It May Concern, I am submitting this complaint to report a safety-related failure involving my 2026 Genesis Electrified GV70, which experienced a sudden “Check Electric Vehicle System” warning consistent with a failure of the Integrated Charging Control Unit (ICCU). Incident Summary On February 5, 2026, at approximately 4,480 miles, the vehicle displayed a “Check Electric Vehicle System” alert and was no longer safe to operate. Due to the risk of propulsion loss and electrical system malfunction, the vehicle required flatbed towing to an authorized Genesis dealership for evaluation. A dealership service advisor subsequently informed me that the vehicle has been diagnosed with an ICCU failure, a component responsible for charging the 12-volt battery and maintaining critical electrical systems. Failure of this component can result in loss of drivability, propulsion limitations, or vehicle shutdown, creating a significant roadway safety hazard. Safety Concern Failures of the ICCU have been widely reported across Hyundai, Kia, and Genesis electric vehicles and have been the subject of prior recalls due to the potential for unexpected loss of motive power while driving. Despite prior recall actions, failures continue to occur, including in my vehicle. Current Status The vehicle remains out of service pending repair, and no written repair completion timeline has been provided. The failure rendered the vehicle unusable and required emergency towing. I respectfully request that the Office of Defects Investigation review continuing ICCU failures affecting Genesis, Hyundai, and Kia electric vehicles to determine whether additional corrective action or expanded remedies INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATIO

NHTSA complaint #11716623 — an unverified report by a vehicle owner.

FUEL/PROPULSION SYSTEM

National Highway Traffic Safety Administration Office of Defects Investigation 1200 New Jersey Avenue SE Washington, DC 20590 Subject: Safety Defect Complaint – Integrated Charging Control Unit (ICCU) Failure Vehicle: 2026 Genesis GV70 Electrified (EV) VIN: [XXX] To Whom It May Concern, I am submitting this complaint to report a safety-related failure involving my 2026 Genesis Electrified GV70, which experienced a sudden “Check Electric Vehicle System” warning consistent with a failure of the Integrated Charging Control Unit (ICCU). Incident Summary On February 5, 2026, at approximately 4,480 miles, the vehicle displayed a “Check Electric Vehicle System” alert and was no longer safe to operate. Due to the risk of propulsion loss and electrical system malfunction, the vehicle required flatbed towing to an authorized Genesis dealership for evaluation. A dealership service advisor subsequently informed me that the vehicle has been diagnosed with an ICCU failure, a component responsible for charging the 12-volt battery and maintaining critical electrical systems. Failure of this component can result in loss of drivability, propulsion limitations, or vehicle shutdown, creating a significant roadway safety hazard. Safety Concern Failures of the ICCU have been widely reported across Hyundai, Kia, and Genesis electric vehicles and have been the subject of prior recalls due to the potential for unexpected loss of motive power while driving. Despite prior recall actions, failures continue to occur, including in my vehicle. Current Status The vehicle remains out of service pending repair, and no written repair completion timeline has been provided. The failure rendered the vehicle unusable and required emergency towing. I respectfully request that the Office of Defects Investigation review continuing ICCU failures affecting Genesis, Hyundai, and Kia electric vehicles to determine whether additional corrective action or expanded remedies INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATIO

NHTSA complaint #11716623 — an unverified report by a vehicle owner.

SERVICE BRAKES

On [XXX], the vehicle was started and there were no brakes, the pedal went down to the floor. The car was turned off, restarted and again there were no brakes. The third time the car was restarted, the pedal went to the floor and then the brake pedal came back up with pressure in the brake lines. The vehicle displayed the warning "check brake system". The car was not driven. The next day, [XXX], a wrecker arrived to tow the car to Bergstrom Genesis, the car was started and again had no brakes. We were told that it was software problem and were given the vehicle back on 12/10/25. On [XXX], while driving the vehicle, the "check engine" light was displayed. The vehicle was picked up by Bergstrom Genesis and the dealership has had the vehicle since 12/11/25 to make sure the brakes don't fail again INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11710619 — an unverified report by a vehicle owner.

SEAT BELTS

The Instrument Cluster Screen went blank (OFF) while driving 65mph on the freeway. The vehicle mechanically kept functioning. I had no gages. The system began to reboot within a few seconds as I was attempting to pull over to the shoulder of the freeway. My vehicle continued to function normally so I drove home. My wife was very startled and shaken. This happened again so I took vehicle to the dealership service dept. where they performed a diagnostic test finding “ technical glitches” as I was told. They ordered a new screen. I drove off with my car until a new screen arrived two weeks later. The screen again went blank on the city streets a day or so before the new screen arrived. I only drove my car as necessary while my wife refused to do so and never had other passengers. I surrendered my car for repairs on Nov.14, 2025 and have not retrieved my car as of today, Jan.7,2026. I became aware during the many repair delays that the dealership was negligent in allowing me to drive off in an unsafe vehicle. They should have provided a loaner until the repairs were completed. I am currently addressing these issues with Genesis Customer Care as a special case team has agreed that my car is now a “Lemon” under Nevada Revised Statutes. We are in negotiations under repurchase. My vehicle also had the two front seat belts replaced for malfunctions on Oct. 7,2025. This was my second GV 70 that I purchased new on May 2022.

NHTSA complaint #11709546 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

The Instrument Cluster Screen went blank (OFF) while driving 65mph on the freeway. The vehicle mechanically kept functioning. I had no gages. The system began to reboot within a few seconds as I was attempting to pull over to the shoulder of the freeway. My vehicle continued to function normally so I drove home. My wife was very startled and shaken. This happened again so I took vehicle to the dealership service dept. where they performed a diagnostic test finding “ technical glitches” as I was told. They ordered a new screen. I drove off with my car until a new screen arrived two weeks later. The screen again went blank on the city streets a day or so before the new screen arrived. I only drove my car as necessary while my wife refused to do so and never had other passengers. I surrendered my car for repairs on Nov.14, 2025 and have not retrieved my car as of today, Jan.7,2026. I became aware during the many repair delays that the dealership was negligent in allowing me to drive off in an unsafe vehicle. They should have provided a loaner until the repairs were completed. I am currently addressing these issues with Genesis Customer Care as a special case team has agreed that my car is now a “Lemon” under Nevada Revised Statutes. We are in negotiations under repurchase. My vehicle also had the two front seat belts replaced for malfunctions on Oct. 7,2025. This was my second GV 70 that I purchased new on May 2022.

NHTSA complaint #11709546 — an unverified report by a vehicle owner.