What 305 owners told NHTSA about the 2015 Hyundai Genesis Coupe

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.

NHTSA ODI 11633851

I visited Mission Hills Hyundai located at 10240 Sepulveda Bl, Mission Hills CA 91345 on Jul 31, 2024 for recall after appointment. I waited 2 & half hour, and Hyundai told me the recall service completed but not done. It was perfectly lying. Hyundai explained my car's break disc has problem and cut it and then put together, but only done for resurface. They charged $824 as a labor. Please confirm them and recall service was not doing even Hyundai sent recall service letters many times. Hyundai service is not good. Thank you.

NHTSA ODI 11606000

The contact owns a 2015 Hyundai Genesis Coupe. The contact stated while driving 10–20 MPH, the vehicle went into LIMP Mode in the first twenty minutes of driving. The vehicle speed was reduced. The check engine warning light was illuminated. The vehicle was taken to the local dealer, but the dealer was unable to determine the cause of the failure. The dealer cleared the DTC codes. The vehicle was not diagnosed or repaired. While driving, the check engine light warning illuminated. The vehicle was taken to another local dealer, Happy Hyundai (9121S Cicero Ave. Oak Lawn, IL 660453), where it was diagnosed that the accelerator position sensor needed to be replaced. The throttle body needed to be cleaned and replaced. The vehicle was not repaired. The manufacturer was contacted. The approximate failure mileage was 34,000.

NHTSA ODI 11575277

There is a code that comes on my car, makes the engine light come on then it goes out on its own . And every year it’s back on same code. Has been happening for years . I took it to the dealership 2xs for the same reason each time they said nothing was wrong cleared the code and the engine light went out. This year being the 9th year having the vehicle the engine light kept coming back on every day after it was cleared and nothing found. So the Happy Hyundai dealership ship said leave the car overnight and see if the engine light is back on and if so he can see then what the issue is because it won’t be historical. I paid $212 for diagnostic, and then a few days he said leave overnight. He discovered that the throttle body had an issue and suggested cleaning. But the car goes in limp mode and I couldn’t accelerate but 20-25 mph. The first 20 mins of driving every day. Then it takes off. He determined that an accelerator pedal position sensor was bad. And I went years without any one diagnosing this. My car only has 34550miles approximately. And it’s almost 9 years old. 34k miles a sensor shouldn’t be bad that soon. The codes were P0651/ and P2106. And now in 2024, someone finally figured it out. But now it’s been almost 9 years and I’m paying $900 or 1k for replacement when it was clearly something wrong years ago . Undiagnosed.

NHTSA ODI 11574379

The contact owns a 2015 Hyundai Genesis. The contact stated while driving approximately 40 mph, the contact felt that the vehicle was rear ended, and the vehicle launched forward. The vehicle was taken to the dealer where the failure was not yet determined. The vehicle was not repaired. The contact mentioned the second time the failure occurred; the contact almost crashed into another vehicle. The vehicle was taken to the dealer multiple times and the failure was not determined. The manufacturer was not notified of the failure. The approximate failure mileage was 21,000.

NHTSA ODI 11424375

VEHICLE WOULD NOT SHIFT UP TO THE NEXT GEAR AND AND STARTED ATTEMPTING TO SHIFT BUT FAILING EVERY TIME AS IT PASSED 2000 RPMS. INCIDENT HAPPENED WHILE PASSING ANOTHER VEHICLE, AFTER AN EXTENDED TIME OF VEHICLE NOT BEING ABLE TO ACCELERATE WHILE ATTEMPTING TO PASS THE BRAKES HAD TO BE APPLIED IN ORDER TO AVOID A COLLISION WITH AN INCOMING VEHICLE. THE VEHICLE LATER FAILED COMPLETELY AND ALL POWER FROM THE ENGINE WAS LOST AND STARTED RAPIDLY DECELERATING THEN FINALLY CAME TO A COMPLETE STOP. INSTRUMENT AND ELECTRIC POWER WAS STILL ON BUT THERE WAS NO POWER FROM THE ENGINE. VEHICLE WOULD NOT MOVE FOR ABOUT 15 MINUTES, THEN IT FINALLY HAD LIMITED POWER TO 45MPH

NHTSA ODI 11354172

AT TIMES THE VECHICLE SURGES FORWARD WHEN CLOSE TO ANOTHER VECHICLE WHEN IN CRUISE CONTROL. HEADS LIGHTS HAVE TURN OFF, ON, AUTOMATIC, LOW WITH OUT ANY HUMAN INTERACTION. NAVAGATION SCREEN WENT COMPLETELY BLANK

NHTSA ODI 11220516

MY VEHICLE SHOWED SOLID CHECK ENGINE LIGHT WHILE I WAS ON 101 FREEWAY AND AFTER EXITING TO CITY ROAD I COULD PARK AND READ THE ERROR CODE "P0880 POWER INPUT TO TCM", I REPORTED THE ISSUE TO HYUNDAI DEALER AND THEY DIAGNOSED THE ISSUE AS INTERNAL TCM DEFECT. DEALER REPLACED THE TCM BUT THAT COULDN'T FIX THE PROBLEM. AND THEY JUST RELEASED THE CAR AS IS. AFTER A SHORT WHILE MY CAR HAD BECOME UNABLE TO REVERSE, AND WHEN SET THE GEAR TO REVERSE, MY CAR MOVES FORWARD TO MAKE A VERY LIFE THREATENING. I CALLED HYUNDAI CORPORATE OFFICE BUT THEY DIDN'T HELP. NOW, I CANNOT DRIVE MY CAR BECAUSE IT IS UNSAFE AND BECAUSE BECAUSE I'M NOT A MECHANIC TO DIAGNOSE THE PROBLEM WHILE THE DEALER AND THE CORPORATE DON'T HELP. I FOUND OUT THAT THE MODEL OF MY CAR IS A SUBJECT TO RECALL FOR GEAR PROBLEM WHICH IS EXACTLY WHAT I FACE NOW. IT SEEMS THAT BOTH OF THE DEALER AND THE CORPORATE OFFICE ARE AWARE OF THE ISSUE IN THIS PARTICULAR MODEL BUT THEY DID NOT EVEN MENTIONED IT TO ME UNTIL I FOUND IT BY MYSELF. A CAR LIKE THAT IS UNSAFE FOR ME TO DRIVE BECAUSE IT RUNS FORWARD ONLY EVEN WHEN THE GEAR IS REVERSE AND IF STOPS I CANNOT EVEN PUSH IT BACKWARDS. A CAR WITH THIS DEFECT IS DANGEROUS FOR MY COMMUNITY. PLEASE HELP TO FORCE THAT COMPANY EITHER REPLACE THE CAR FOR ME, REPURCHASE OR REPAIR IT TO FULL OPERATIONAL STATUS..

NHTSA ODI 11153265

MY CAR WAS PERFECTLY OPERATIONAL BUT SUDDENLY DURING REGULAR DRIVING ON THE 101 HIGHWAY IT SHOWED SOLID CHECK ENGINE SIGN. I CHECKED THE ERROR AND IT READ P0880 I HAD TAKEN MY CAR TO THE HYUNDAI DEALER (KEYS) WHERE THEY DIAGNOSED IT AS TCM INTERNAL FAILURE AND RECOMMENDED CHANGING THE TCM AFTER PAYING FOR THE PART AND INSTALLATION ($994.00 AND $162.00 FOR DIAGNOSIS) THE DEALER INSTALLED THE PART AND CAME BACK TO INFORM ME THAT THE ISSUE PERSISTS AFTER PART'S INSTALLATION AND THAT THEY ARE GOING TO WORK WITH THE ELECTRICITY TO FIX THE PROBLEM. DEALER INFORMED ME THAT THEY SHALL WORK ON THE CIRCUITS BUT NOT WITH ANY TRANSMISSION PROBLEM. AS THIS ISSUE HAPPENED WITH REGULAR USE, I BELIEVE IT TO BE MANUFACTURING ISSUE THAT MUST BE CARRIED OUT AND FIXED BY HYUNDAI.

NHTSA ODI 11130874

TL* THE CONTACT OWNS A 2015 HYUNDAI GENESIS. WHILE DRIVING 30 MPH, THE VEHICLE FAILED TO ACCELERATE WHILE THE ACCELERATOR PEDAL WAS DEPRESSED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE FAILURE WAS INTERMITTENT. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (DENNIS HYUNDAI OF DOUBLIN, 2441 BILLINGSLEY ROAD, COLUMBUS, OH 43235), BUT THE FAILURE COULD NOT BE DUPLICATED OR DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 23,000. *LN CONSUMER HAS DETAILING 4 EPISODES WHICH ARE LITERALLY LIFE-THREATENING IN NATURE. CAMSHAFT POSITION SENSOR CODE MALFUNCTION AND PLAN TO REPLACE IT UNDER WARRENTY. MOST OF THE SIMILAR EPISODES WERE REPORTED TO BE DUE TO A FAULTY THROTTLE POSITION SWITCH (TPS) AND THE RECOMMENDATION WAS TO REPLACE IT WITH AN UPDATED POSITION SWITCH. UPDATED 9/12/18*JB

NHTSA ODI 11034420

ON JUNE 2, 2017, I WAS ATTEMPTING TO PARK MY VEHICLE IN A PARKING STALL AT A MINIMUM SPEED OF 5-8 MPH. SUDDENLY, THE ENGINE REVVED UP, INSTRUMENT PANEL FLASHED AND RADIO CHANGED STATIONS. WHEN TRYING TO BRAKE THE CAR, THE BRAKES DID NOT ENGAGE AND I SUBSEQUENTLY HIT A WALL. THE AIRBAGS DID NOT DEPLOY. WHEN THE EALER CAME TO GET THE CAR, THE INDIVIDUAL PICKING UP THE CAR INDICATED SOMETHING WAS WRONG WITH THE BREAKING MECHANISM. HOWEVER, THE DEALER AND MANUFACTURER SAYS NOTHING WAS WRONG WITH THE CAR BUT WON'T PROVIDE THE DETAILS OF THE REPORT.

NHTSA ODI 11016531

ELECTRONIC GREMLINS PERIODICALLY HIT. -AT RANDOM TIMES THE FRONT OR REAR SENSORS DON'T "SEE" OBJECTS. I HAVE KISSED BUMPERS WITH ANOTHER CAR WHEN NEITHER OF US SAW THE OTHER, AND MY GENESIS FAILED TO SEE. IT'S ALLOWED ME ON AT LEAST TWO OCCASIONS TO PULL TOO CLOSE TO OBJECTS IN FRONT. -WORSE, THERE ARE RANDOM EPISODES WHERE THE ADAPTIVE CRUISE CONTROL FAILS TO SEE TRAFFIC IN FRONT OF IT. NUMEROUS TIMES WE HAVE NARROWLY MISSED COLLISIONS WHEN WE HAD TO QUICKLY AND FORCEFULLY APPLY BRAKES. I'VE EXPERIENCED THIS AS HAS MY WIFE AND MORE IMPORTANTLY CLIENTS! -THE SELF-RETRACTING MIRRORS FREQUENTLY TO NOT WORK PROPERLY AND WE HAVE TO MANUALLY OVERRIDE.

NHTSA ODI 11003640

I OWNED THE CAR FOR 9 MONTHS AND NEVER HAD A PROBLEM IN THE RAIN. IT WAS RAINING AND MY CAR SAFETY LIGHTS STARTED FLASHING TELLING ME THAT FRONT COLLISION WARNING WAS NOT WORKING, LANE DEPARTURE WARNING WAS NOT WORKING, BLIND SPOT DETECTION WAS NOT WORKING. AND TO CHECK AEB SYSTEM. HYUNDAI TOLD ME THAT ALTHOUGH IT WORKED FINE FOR 9 MONTHS, THAT THE SAFETY FEATURES MAY NOT WORK IN THE RAIN

NHTSA ODI 10779555