2015 HYUNDAI GENESIS Complaints

I've been bringing my car to a repair shop over and over for the past month. Myself and the repair shop had to put a quart of oil once a week in the vehicle. I have spent on numerous things to get down to the problem. The engine is leaking oil. I downloadwd proof leading to the problem I need to get fixed. The problem is still there

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 [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I just purchased a 2015 Hyundai Genesis 3.8 4 door sedan 1/10/2025. Randomly lately the car does a slight jerk and the screen goes black, that happened about 5 times in just a few weeks. twice the car shutoff and back on at slow speed coming to a stop, and then entering into a parking lot. same day at 65-70 mph on the freeway it jerked hard and the engine turned off and on. Very scary and dangerous!! I did not see anything on recalls that would pertain to this happening. All recalls have been done on this car, that's what it indicated. Service guy wasn't sure. this is a random thing. I could leave my car with them but they'd have to drive it a lot for long periods before it might actually happen again.

The contact owns a 2015 Hyundai Genesis. The contact stated that the driver's side mirror failed to adjust properly to view the surroundings on the driver's side of the vehicle. The failure was causing issues and a need for chiropractic care due to the contact needing to manually turn and adjust to safely view oncoming traffic, which aggravated previous neck and back injuries. The vehicle was taken to the dealer, who diagnosed that the mirror had failed and needed to be replaced. The vehicle was not repaired. When having the oil changed, the dealer informed the contact of 2 recalls; NHTSA Campaign Number: 21V160000 (Service Brakes, Hydraulics) and NHTSA Campaign Number unknown (manufacturer number 252) and Service Campaign Manufacturer Number 965 (NHTSA ID Number unknown). The fuel module, fuse assembly, and relay were replaced or repaired. The vehicle was kept for the remedies to be completed; however, approximately 2-3 weeks after the remedies were completed, the vehicle would hesitate when driving at various speeds, the engine would stall without warning, and the vehicle would fail to start on initial start-up, intermittently. The contact used engine cleaner, seafoam, and Lucas cleaner for the engine; however, the engine failure persisted. The vehicle was towed to the dealer, who was not able to provide a diagnosis or make contact for any updates since the vehicle's been returned. The vehicle was not repaired. The manufacturer was informed of the failure and had 2 cases of the vehicle. The failure mileage was approximately 96,000.

The front RH and LH turn signal harness is defective. The turn signal bulbs burn out quickly even after replacing the bulb harness. When the bulbs are out you are unable to notify oncoming traffic that your vehicle is turning.I believe the dealer is aware of the issue. No inspections other than by the dealer. the vehicle does notify you the bulb is burned out by a rapid green turn signal light on the dash.

A well known and documented case of the oil pressure sensor switch failure has occurred on my car. Hyundai has recalled the car for this problem in South Korea. My switch failed at slightly over 60,000 miles. The switch is in an inaccessible location on the engine for even a good DIY owner-mechanic, which makes it very expensive to replace. This is a very common discussion on Hyundai owner forums and elsewhere.

The trunk of the car stopped opening with the “open trunk button” from inside the car and also does not work with the key fob option. The trunk now needs to be opened by key from key fob everytime. Water is leaking through the trunk of the car and cause to have mold in the car. An electrical problem with the audio of the car stopped working. The radio or bluetooth no longer works due to the audio no longer working. The driver side front window does not work due to an electrical problem.

Oil pressure sensor failed (known issue with this engine) and causes the oil light to go off and on while idling and in motion. Part has a manufacturer recall already in Korea but not in the US for the same issue

I have spent over thousands in 2024 in a small amount of time, going to multiple shops, trying to figure out issues. I have been told these models are known for having ECU and electrical issues. My car will not set off any codes. I have greatly maintained my vehicle. I have had my keys reprogrammed, 2 new batteries, 2 new alternators, all new 6 fuel injectors, new MAP sensor, all new spark plugs and plugs, had my engine and transmission inspected, and when I am in traffic WITH MY KIDS IN THE VEHICLE the immobilizer will set off and bog my car out in traffic and highways. This computer and electrical system is horrible and dangerous. The electrical is parasitic draining my alternator and battery although I have replaced twice in 2 month. No shop can figure out what is wrong with the ECU and electrical. It is draining my pockets, and putting my children and myself at saftely risk. I have done extensive research on this issue. I have seen many people, same car, same issue. Please help. My car will turn on and run fine. Put me in limp modes and even just bog out in traffic. I am very concerned.

I just purchased a used 2015 Genesis 3.8 Sedan and the BSD warning system intermittently comes on after driving at highway speed for less than an hour. It is unable to be reset and requires you to turn off the vehicle for the speed and proper indicators on the dash to be functional. This is a clearly a known manufacturer defect with all the threads being posted about the problem. The dealer is unable to replicate the problem, it requires highway driving of 30 minutes to an hour and has happened with the cruise set. It is not weather related, the car is pristine and clean and does not come on or is triggered by other vehicles. Due to not being able to see your status and other information on the dash until you pull off the road to turn the vehicle off this poses a serious safety threat when traveling at highway speed and not having your instruments to detect proper system performance. It is also not always safe/reasonable and convenient to pull off and turn the car off to reset the system only to have it come back on within the hour.