The contact owns a 2012 Hyundai Genesis. While at a stop light, the vehicle suddenly experienced unintended acceleration. During the incident, the brakes malfunctioned and would not immediately stop the vehicle when the brake pedal was depressed. Moments later, the engine backfired and the check engine indicator illuminated. The vehicle was taken to the local dealer (Hyundai of coconut creek in coconut creek, fl) where it was diagnosed that the engine valve was faulty and needed to be replaced. The vehicle was repaired, but the failure recurred. The vehicle was taken back to the dealer where it was diagnosed that the transmission was faulty and need to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 65,000.

- Coconut Creek, FL, USA

While driving home, the car ac started blowing hot and the dash panel lit up, the engine turned itself off and I coasted to the side of the road. After stopping, I pressed on the brakes and pushed the start button and the car started right up and I drove home, no further problems. This was on a las vegas city street. This is the 6th time this has happened in less than a year, twice it was on the freeway! we just picked up the car from the dealership on Friday, today is Monday, they claimed that they couldn't duplicate the problem, but didn't know that I had documented the mileage and they did not even test drive the vehicle!

- Pahrump, NV, USA

When driving at slower speeds (<30) on a city street, while driving straight, as I lifted my foot off the gas pedal, the car continued to accelerate. Pressing the brake slowed it but did not stop the problem. I pulled the car over and put it in park. When placed in park, the engine revved loudly. I pressed the button to turn the ignition off. This has happened 3 separate times. Once in July and 2 times on August 21.

- South Pittsburg, TN, USA

Clutch burnt out at 26,000 miles. After researching I noticed 2000+ posts on following website which shows that many Genesis coupes have problems with manual transmissions. I did not drive my car rough or do anything besides safe driving. The clutch is abnormally expensive as well - $4000 repair for a car which is barely valued at $10K. I only drove 26K miles in 5+ years!

- Newport Beach, CA, USA

Issue in which the transmission does not shift smoothly into 2nd and 3rd gear. Typically, the transmission will shift somewhat smoothly for a few days, but then shifting gets progressively rough until the car shudders to the point that it's physically painful, embarrassing, stressful, as well as dangerous! it seems to return to slightly normal shifting for a couple of days, thus restarting it's vicious cycle. I called Hyundai's customer service line and was advised that there are "no active campaigns" for my VIN in regards to the transmission. Yet, the make, model, and year is associated with tsb no. 15-at-005 "drivability problems with transmissions". many people are having the same issues, a recall is in order. Https://www.cars.com/articles/2007-2013-Hyundai-vehicles-transmission-issues-1420681346983/

- Philadelphia, PA, USA

Had the transmission replaced at 57xxx due to faulty syncronizers inside the transmission. Now 14000 miles later it needs replaced again but is not covered this time. I am not the only personnto have this problem as it is rather common.

- Napa, CA, USA

The car will not start when the temp outside is ~40 degrees F or lower outside. It will crank non stop (push button start) but won't ever start. Car battery is only two months old. Cranks fine when the outside temp raises back up to around 45 degrees F and up. While driving today on the interstate, on the bridge, the car randomly lost all engine power. Trying to step on the gas pedal would result in the car studdering. I turned on the emergency signal and just cruised into the side lane out of traffic. Turned the car off and on and noticed the RPM idled at 1500 RPM which is insanely high. I put it in 1st gear and gave it gas, and nothing happened. The RPM meter wouldn't go up. After a few more times of cutting the engine on and off and the engine wouldn't start a few times also, it finally started and seemed to work normally. Now the car has a check engine light on.

- Pensacola, FL, USA

While driving home today my car killed dead which caused the power steering to go out while I was turning off FM1960 onto kenswick in humble tx which is a very busy street. This is the 3rd time that this has happened I wrote a letter back on 5-22-15 to Hyundai warranty department and have not been notified by them. This is very dangerous I could have been rear ended and god knows what else. Please have this matter checked into with Hyundai. Thank you very much.

- Humble, TX, USA

When driving our car, it just dies with no for warning what so ever. This has happened 7 or 8 times over the past two years, so it is not something that happens all the time but when it does it can be extremely dangerous. This has happened driving down interstate all the way to slowing down for stopped traffic. We started working with fort mill Hyundai over two years ago and have been told things like our oil change was past due to my wife doesn't drive the car hard enough, both laughable responses to a very serious issue. We were getting nowhere with the dealer so I contacted Hyundai corporate and again got a laughable response from their internet team. When I pushed the issue and brought up someone was going to get hurt or killed and they would hear from an attorney they had their regional manager out of atlanta call me (I believe his name is [xxx], he talked me into taking the car to keith hawthorne Hyundai as the fort mill location did not follow their internal procedures. In working with the keith hawthorne team they felt they could help me out. After having my car for 10 days they called me and told me to pick up the car as Hyundai will not authorize them to do anything on the car. I completely realize the technology and complexity of todays automobiles and was trying to remain patient and work with them even though I felt it put my family at risk. Unfortunately Hyundai has made the decision to not work with me leaving me no option but to reach out to you. A side note, if you do a quick google search you will see we are not the only Genesis owner having these problems, so Hyundai has a bigger problem than just my car. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Fort Mill, SC, USA

The car just completely shut down. Fortunately, I had just turned for home on a 25 mph street so I was going slow enough that I could manage to at least get the car to the side of the road. Do not know what would have happened 15 minutes earlier if it had shut down on the busy interstate I was on. It did start back up again, but now am afraid to drive it anywhere. Have contacted Hyundai, but if there follow-up is anything like it has been in the past, it will be a waste of my time. They will just say that they cannot reproduce the problem and send us a coffee mug hoping that will resolve the issue. We have had numerous previous electrical issues: Such as car starting back up by itself after being shut off, the radio literally popping on and off, the radio locking on a station (you could change channels, but the same station kept playing), the nav turning on and off by itself. The car had been doing okay this year until this most recent incident where it just flat shut off. Do not trust Hyundai to solve the issue and it is to scary to drive. And I don't believe that there is a lemon law in this state. No matter what, I can assure you that this will be my last Hyundai.

- Hot Springs Village, AR, USA

I was trying to turn left onto a cross street and as soon as I got moving the car lost power for a few seconds that started going again...this as happen 4 or 5 times and I only owned this car for 3 weeks. Hyundai can't duplicate this happening....its on the Hyundai forums and they sent me here.

- Corona, CA, USA

I had this verified scenario by the local Hyundai technician while he had the computer hooked to my car and I consistently duplicated the problem. While quickly decelerating from 25-20 mph to under 5mph the transmission delays the shift from 3rd or 4th gear directly to 1st gear by 2-4 seconds without any power. When immediate power is needed the delay causes me to give it more gas in hopes of more immediate response. Eventually the car gives sudden acceleration often times triggering the traction control to engage. This has caused a few near miss accidents for me. I bring it up to the dealership everytime I have the car serviced but it doesn't appear Hyundai has a fix. I have also sent in this issue directly to Hyundai usa. The issue is the shift pattern from 3rd or 4th directly to 1st gear. If the car would downshift evenly 4,3,2 then the proper gear would be engaged when power is needed.

- Portland, OR, USA

On 08/02/2014 at approximate 6 P.M., my 2012 Genesis R-spec 5.0 sedan completely stalled out as I was coming to a stop at a major intersection. There was no warning or indication of any issues up to this point. It took several attempts at starting the vehicle before it finally started and continued under its own power. This type of unexplained power loss could lead to a very serious accident. The engine warning light is currently not indicating any problems so I doubt if there are any trouble codes stored. I have owned the vehicle since new and it has always been garaged and never in a accident.

- Taunton, MA, USA

The common denominator for what I experienced has been that the car is moving slowly, 5-20 mph (7th or 8th gear), and you floor the accelerator while changing the lane (to merge quickly). All that happens for 1-2 seconds is that the car coasts at the speed you were going (absolutely no power is applied to the wheels), and you see the revs going up and the transmission shifting to a lower and lower gear (but not sending any of that power to the wheels), until it gets to the 2nd or 3rd gear and then your head snaps back as it accelerates very quickly (but 2 seconds too late). So instead of the expected takeoff you get 2 seconds of coasting while the car in the lane that you got into is getting uncomfortably close and has to brake to prevent an accident. This is extremely dangerous and unexpected.

- Fox Lake, IL, USA

The vehicle accelerated without the gas pedal having a force applied thereto and with the brake pedal being depressed. Once the automatic transmission was placed in park, the engine operated at over 3,000 RPM without the gas pedal being depressed. Once the engine is turned off and restarted the vehicle operates normally for a short period of time.

- Germantown, MD, USA

I was driving on a local highway in the center lane and the vehicle lost power suddenly. All of the indicators came on. I had to muscle the car off the road using momentum with no power steering crossing lanes of traffic. It was a very dangerous situation that could easily have created an accident. Previously the car lost power at a light and the navigation and back up screen has flickered and turned off and the music controls freeze. I took the car in to the dealership after it died the first time and they reported no error codes and did not repair the car. I immediately took the car in after it died on the highway and they are again reporting no error codes. This is a very dangerous situation to have my car suddenly lose power while driving.

- Fort Myers , FL, USA

The contact owns a 2012 Hyundai Genesis. The contact stated that while shifting from reverse to drive, the vehicle continued to drive in reverse. The vehicle was restarted and functioned normally. The vehicle was later taken to the dealer where the failure could not be replicated. The manufacturer was not contacted. The failure mileage was approximately 90. The current mileage was approximately 100.

- Rolling Hills Estates, CA, USA

Auto hold technology feature failed at a stop light. When on, auto hold illuminates white, and green when it is actively holding the vehicle in place, without the need to depress brake pedal. On a stop light car jerked forward and the auto hold illumination turned orange in color from green. Auto hold feature would not reset even when restarting vehicle. Dealership was able to reset, citing a shortage in the auto-hold unit, with a replacement part ordered. Potentially dangerous if there was anyone in front of the vehicle at the time of failure, as it could of resulted in a potential injury.

- Mequon, WI, USA