Which parts fail
Components named in complaints (automatic and manual transmissions, CVT, axles, driveshaft, 4WD/AWD).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2015 Hyundai Genesis owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2015 Hyundai Genesis. The contact stated that while stopped at a traffic light or while the vehicle was in drive, the vehicle failed to move, and the engine shut off unexpectedly. Several unknown warning lights were illuminated on the instrument panel. To restart the vehicle, the driver had to shift the gear selector into park and then press the start button. The vehicle was taken to a local dealer, but the dealer was unable to duplicate the failure or determine the cause of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 120,000.
The contact owns a 2015 Hyundai Genesis. The contact stated while driving at various speeds, the vehicle loss motive power and stalled, with the accelerator pedal depressed. There was no warning light illuminated. A dealer was not contacted. The vehicle was not diagnosed nor repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 34,000.
The vehicle exhibits a severe vibration and shaking at normal highway speeds, most notably around 70-80 mph. The condition is repeatable and occurs during steady freeway driving. The vibration is strong enough that the vehicle feels unstable and unsafe to operate at typical highway speeds. This condition significantly affects safe freeway operation. Due to the severity of the shaking, I no longer feel comfortable or safe driving the vehicle at or above normal traffic speeds, which increases risk when merging, maintaining speed with traffic, or responding to road conditions. The problem has been reproduced and confirmed by authorized dealerships. Multiple inspections and repair attempts have been performed over several months for the same vibration concern. Major drivetrain components, including the rear differential and driveshaft, were replaced, but the vibration remains unresolved. …
I took my car to South Shore Hyundai sometime in May 2023 to find it has internal transmission failure at 107,500 miles and a new transmission would cost $6,200 and change. This transmission issue has been gradually getting worse since around 87,000 miles when I did a computer reset to attempt to resolve it. The issue didn't show up on a computer and it wasn't an everyday issue at 87K but now it's an everyday issue and concern while driving. I also believe I had the transmission examined at around 97K by allowing Advantage Hyundai Service in Hicksville NY to test drive the car for over a day and they found nothing. I was hoping to fix the transmission under the 100K mile powertrain warranty promised to me by my salesman but not executed on paper as I was an inexperienced buyer and was taken advantage of. …
Got oil changed at Genesis dealership at 79K miles. Within a day, Low Oil Pressure light began to turn on and off sporadically. Usually showing up when idling and turning off while accelerating. Took car back to dealership and they identified a faulty oil switch (which appears to require a significant amount of labor to access/replace). This has already been recalled in Korea as it has been happening to many vehicles around the 60-70K mile mark and it is a major safety issue (people driving with a faulty sensor may get complacent on urgency if the warning light). I sincerely hope Hyundai/Genesis USA issues a recall for the faulty oil pressure switch issue and this most definitely should be covered under the 100K miles Powertrain warranty.
The differential mounting bolt on the passenger side (the only one on that side) backed out and broke causing that side of the differential to smack the bottom of the car and then sag on the passenger side after letting off the throttle. Once it dropped it made the car come to a compete stop fast. Luckily there was no accident. This exact issue has already been fixed previously under recall, due to this the dealership nor manufacturer is wanting to fix it under the recall again. My case number with hyundai [redacted]
When driving at the speed of 20 - 25 MPH the car feels like its skipping or struggling to shifting into the next higher gear. Then all of a sudden it feels like someone rams into the back of us. Then the car will not shift into the next. I took the car into Coconut Creek Automotive LLC. The car just sat there for almost 3 months. They tell me that they could not duplicate the problem. I spoke with a service rep that told me he felt the problem. The Manager said to me that the car had to be driven and the problem displayed 5 out of 10 times. My car was there for almost 3 months and only drove 12 miles.
Transmission at low speeds going into the 1st gear has a hard pull. Rmps jumps from 2to4 and back down until it reaches 2nd gear and it doing it again. After that it's smooth. Only way to avoid this is drive fast. Other genesis owner has the same issues. They say to change the Transmission fluid but it will eventually do it again. It makes alot of people that drive my car really scared.
There are multiple problem points with this vehicle that become apparent far earlier than they should including but not limited to 1: Starter Motor complete failure at 70k miles (affects every single 3.8 2015-2017 genesis sedan) 2: Sunroof front panel seal degradation 3: Shuddering driveshaft early into new ownership (also afflicts most of these vehicles) 4: BRAKE BOOSTER AND MASTER CYLINDER SUDDEN COMPLETE FAILURE 5: Oil Pressure sensor improper calibration All of these issues have been checked by multiple service centers at Hyundai/Genesis dealers, all of them confirming reluctantly that these issues affect all genesis models similar to mine. The braking issue is the worst, happens suddenly and at a random point in time, and costs thousands to fix. …
While gradually accelerating from 20 through 40 miles an hour, the engine will rev to approximately 6000 RPM. During that hi rev, the car will not increase in speed (like it's in neutral) then after approximately 5 seconds, there is a loud bang noise in the car lurches forward and rapidly accelerates. It feels as if I were hit in the back by another car. This has happened twice in the 1 1/2 years that I have owned the car. Since it is a very intermittent and unpredictable problem. Even though I've brought the car into the dealer twice, they've been unable to find any defect. This is clearly a safety defect. I think, likely secondary to some transmission issue. The dealer and factory say there's nothing else they can do. Unless they have personally experienced the problem they will not do anything. …
Related recalls
Power train › Driveline › Differential unit
Hyundai Motor America (Hyundai) is recalling certain model year 2013-2015 Genesis Coupe vehicles manufactured December 28, 2011, to April 6, 2015, equipped with manual transmissions. In the affected vehicles, if the differential and the suspension rear crossmember were not properly aligned during vehicle assembly, the bolts…
Remedy: Hyundai will notify owners, and dealers will verify the proper assembly of the differential, free of charge. The recall began on December 30, 2015. Owners may contact Hyundai's customer service at 1-855-671-3059.
Transmission complaints in other Genesis years
Frequently asked questions
How common are transmission problems on the 2015 Hyundai Genesis?
NHTSA has 23 complaints about the transmission & drivetrain of the 2015 Hyundai Genesis, 8% of the model year's 306 complaints. The component named most often is automatic transmission (1 mentions).
Is there a recall for 2015 Hyundai Genesis transmission problems?
Yes — NHTSA recall 15V-756 (differential unit, Nov 16, 2015). Recall repairs are free at authorized dealers.
At what mileage do 2015 Hyundai Genesis transmission problems start?
Half of the complaints with a recorded mileage happened before about 31,000 miles, and 47% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.