What 23 owners told NHTSA about the 2014 Hyundai Genesis Coupe

While driving at approximately 70MPH on the highway, my 2014 Hyundai Tucson Limited suddenly locked up with no warning lights, no noise and no prior symptoms. The engine completely seized, causing immediate loss of power. I was barely able to coast off the highway exit to a final stop on the feeder shoulder, in a desolate area. The vehicle has always been properly maintained and is in excellent condition. Upon research, I learned that Hyundai has known of internal engine defects caused by metallic debris left from manufacturing since 2010, which can cause bearing failure and engine seizure. My Tucson's failure matches the same pattern described in Hyundai's Theta II engine recall and warranty extension campaigns. This sudden failure created an extremely dangerous situation at highway speed and possibility of injury while being stranded on an open road. Many owners, myself included, were never properly notified of the risks. I am filing this report because this incident represents a serious safety defect and potential recurrence among similar vehicles that may not yet be covered by recall. I respectfully request that the National Highway Traffic Safety Administration investigate this issue and ensure Hyundai expands its recall and warranty coverage to include affected 2014 Hyundai Tucson Limited vehicles exhibiting this defect that was well-known to the Hyundai Corporation. Date of Incident: October 23,2025 in Houston Texas. Vehicle towed to Hyundai dealer which diagnosed Engine Seized and currently awaiting Warranty Extension Approval (TXXC/TXXI)

NHTSA ODI 11697541

It's termed as a "Dead Pedal" with the accelerator pedal sensor as to when the accelerator pedal is applied to move the car, the signal to apply gas to the engine to move it , doe's not happen, and the car will not move, momentarily causing a very unsafe situation in traffic. this problem is sporadic and you never know when it will happen. to my knowledge this is happening in the 2009 to 2015 models Hyundai Genesis cars with the 3.8 and 4.6 and 5.0 engines. Any car with the drive by wire is effected with this problem, and should be looked into and repaired. I have not gone to the dealer with this problem and there is no check engine light on when it happens.

NHTSA ODI 11523440

The contact owns a 2014 Hyundai Genesis. The contact stated while starting the vehicle, the contact heard an abnormal sound coming from the vehicle. The contact stated that the check engine warning light was illuminated. The contact took the vehicle to the local dealer, where he was informed that the sound was normal. The contact stated that the sound remained. The manufacturer had not been informed of the failure. The failure mileage was approximately 65,000.

NHTSA ODI 11419883

CAR ENGINE SHUTS OFF/STOPS RUNNING, WITHOUT WARNING, WHILE DRIVING. HAS HAPPENED 3 TIMES IN THE PAST 12 MONTHS. AT SLOWER SPEED, IN TOWN, COMING TO A STOP OR SLOWING FOR A TURN. CAR STARTS BACK UP RIGHT AWAY, AND WON'T STOP AGAIN FOR A LONG TIME. ALSO CAN'T MAKE IT STOP ON PURPOSE.

NHTSA ODI 11256395

I WAS DRIVING ON A HIGHWAY WHEN MY VEHICLE STALLED NEARLY CAUSING A MAJOR ACCIDENT. THERE WAS NO WARNING, ENGINE LIGHT OR ISSUES WITH THE CAR STARTING OR DRIVING. NO ISSUES WITH IDLING OR ANYTHING TO SUGGEST I NEEDED SERVICE. THE DEALER IS SAYING IT IS EXCESS CARBON ON THE THROTTLE BODY. IT APPEARS HYUNDAI HAS HAD ISSUES WITH THIS THAT HAVE NOT BEEN ADDRESSED.

NHTSA ODI 11174359

TL* THE CONTACT OWNS A 2014 HYUNDAI GENESIS. WHILE DRIVING APPROXIMATELY 45 MPH, THE ENGINE STALLED WITHOUT WARNING. THE VEHICLE WAS PULLED OVER TO THE SIDE OF THE ROAD AND RESTARTED, BUT THE FAILURE RECURRED. THE VEHICLE WAS TAKEN TO PEACOCK HYUNDAI HILTON HEAD IN HARDEEVILLE, SOUTH CAROLINA 29927 (843-208-1234) WHERE IT WAS DIAGNOSED THAT THE CHARCOAL FILTER WAS OVERLOADED AND SHUT DOWN THE ENGINE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND RECOMMENDED THAT THE CHARCOAL FILTER BE REPLACED. THE FILTER WAS REPLACED, BUT THE CONTACT DID NOT FEEL THAT THE VEHICLE WAS SAFE TO DRIVE. THE FAILURE MILEAGE WAS APPROXIMATELY 51,000.

NHTSA ODI 11099504

TL* THE CONTACT OWNS A 2014 HYUNDAI GENESIS. WHILE DRIVING 20 MPH, THE VEHICLE STALLED WITHOUT WARNING AND CRASHED INTO THE CURB. THE AIR BAGS DID NOT DEPLOY. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (ATLANTIC HYUNDAI, 193 SUNRISE HIGHWAY, WEST ISLIP, NY 11705). THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS APPROXIMATELY 62,000.

NHTSA ODI 11060718