really awful
Crashes / Fires:
2 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
33,302 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2010 Hyundai Genesis Coupe engine problems

engine problem

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2010 Hyundai Genesis Coupe Owner Comments

problem #8

Jul 232014

Genesis Coupe 4-cyl

  • 67,000 miles


While driving the car, the car speeds up on its own without me pushing the accelerator. The car also has rev hang and the rpms rise by its self and stays their. Usually between 6500rpm. I have to press the brake in order for the rpms to drop so its doesn't blow the motor.

- Hurtsboro, AL, USA

problem #7

Aug 182010

Genesis Coupe 4-cyl

  • 1,500 miles
When starting the vehicle with foot on the clutch, it lurched forward hitting a parking barrier. Dealer denied mechanical causes. From the time I bought the car, it has accelerated on it's own, going to the max in rpms, at random times. I can take my foot off the gas and it will drive itself. When I try to come to a stop, it will accelerate and I have to counter by hitting the brake. When taken to the dealer, they couldn't "replicate" it. When I argued with the man, he said he would honor the warranty when they could replicate it, though the warranty is now expired. I asked for something in writing, he initialed the work order. Also, the front, under the bumper, is way too low and made of weak material, so when I have to go over any kind of dip, it drags, which has caused the piece to break. This also got up into the fender-well, which caused a hazard with my tires. I am stressed and scared of having a dangerous accident. I am considering trading the car in, but worry for the next owner. I no longer trust Hyundai. I feel like my safety is not a priority for the company. They do not search for the cause, just send me back out in a defective vehicle.

- Plainview, TX, USA

problem #6

Jun 122013

Genesis Coupe 6-cyl

  • 63,000 miles
I have a 2010 Hyundai genesis 3.8 coupe 6-speed automatic with paddle and sport shift. I have had an ongoing issue with the vehicle for several months now not shifting properly. Sometimes it wont shift out of 1st gear and when it does it will unknowingly downshift and get stuck in a gear. Since the issue began, I have received several speeding tickets and had near death experiences due to the shifting. Sometimes it will increase and decrease speeds and the rpms will raise sometimes up to 6000 before it will shift or I have to place the car in park and turn off the ignition for the shifting to begin working properly again. I have to ask myself everyday if I am willing to risk my life for the issue because I have had so many near death experiences with this. It definitely needs to be looked into!!!

- Brownsville, PA, USA

problem #5

Mar 182013

Genesis Coupe 6-cyl

  • 58,947 miles


It does not shift properly causing it to decrease or increase speed without pressing the gas pedal. The problem also causes the vehicle to exceed recommended RPM level which causes the vehicle to get stuck in one gear and makes it difficult to stop the vehicle. This issue has caused instances where I have had to swerve off the road to avoid collision.

- Brownsville, PA, USA

problem #4

Sep 112012

Genesis Coupe

  • 63,510 miles
The contact owns a 2010 Hyundai Genesis coupe. The contact stated that while attempting to start the vehicle by engaging the push-to-start button, the vehicle erroneously accelerated. The contact was not applying the brakes at the time nor was the vehicle shifted into drive. The contact crashed into a glass garage door. The contact sustained minor cuts and bruises from the impact. The vehicle was taken to an authorized dealer but was not repaired. The manufacturer was not contacted. The failure and current mileages were 63,510.

- Unionville, VA, USA

problem #3

Aug 222011

Genesis Coupe 4-cyl

  • 12,260 miles
Car will not accelerate properly in 1st & 2nd gear and tends to want to stall when reaching a certain RPM; car will not go beyond 40 mph; check engine light comes on; unable to determine when the defect is about to occur making the car unreliable and unsafe to drive; defect occurs will vehicle is in mid-operation while driving on road regardless of speed. Defect(s) have resulted in several near collision experiences, since cars behind vehicle have almost rear-ended vehicle as they did not expect the car to decelerate with no brake light indication of the vehicle slowing down and is therefore a danger to drive. Driver unable to safely merge with traffic on major highways as the vehicle does not accelerate properly and will not go faster than 40 mph, making it impossible to merge seamlessly with traffic thereby placing driver and drivers of other vehicles in danger and safety risk. Driver unable to use side-roads as an alternate measure, as car does not accelerate properly and tends to want to stall when pulling off in 1st and 2nd gear resulting in cars behind vehicle almost rear-ending vehicle. Three attempts have already been made to repair the defect, yet defect continues to occur.

- Miami Lakes, FL, USA

problem #2

Jan 102010

Genesis Coupe

  • miles
One of my automotive forum member experienced a serious sudden acceleration issue with his Hyundai genesis 2 door car, 2010 model. The issue was believed to be caused by vdc(vehicle dynamic control software) that Hyundai motor in South Korea admitted but refused to do any action against this issue. The Hyundai car, genesis, can be accelerated suddenly without pressing the acceleration pedal. The engine RPM was risen upto 6,000 RPM without pressing the pedal and the RPM never dropped again. Hyundai R&D center found the car had different size of wheel at the front side. The owner then withdrew the complaint against the Hyundai motor Inc in South Korea. But I want NHTSA need to investigate this issue because other drivers in usa can experience the same safety issue. This might cause fatal accidents if the front tire lose air pressure. The Hyundai motor seems to hide this issue without doing recalls.

- Duluth, GA, USA

problem #1

Dec 102009

Genesis Coupe

  • 200 miles
What I had believed to be somewhat of a nuisance problem has now become a very critical problem. A couple of times after purchasing this Hyundai Genesis coupe 2.0 while trying to normally accelerate, the car virtually died. Acceleration flat spot. Somewhat similar to the old carbureted cars. Very infrequent, however, the other day losing acceleration almost caused a major accident. Very close.

- Murfreesboro, TN, USA

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