The contact owns a 2006 Hyundai Sonata. The contact stated that while driving approximately 55 mph, she approached a stop signal and the vehicle failed to respond to deceleration attempts. The emergency brake was applied in order to stop the vehicle. The contact also mentioned that intermittent erroneous acceleration was experienced. The failure progressed and became permanent. The vehicle was inspected by a certified mechanic who informed the contact that the failure was related to the speed control. The vehicle was not repaired. The manufacturer was not notified of the defect. The failure mileage was unavailable.

- Lexington, MS, USA

On December 30th 2012 time:11.52 am while making a slow turn into a parking area of sikh temple, 16000 stirling road, southwest ranches, FL33331 tel: 954 680 0221, my 2006 Hyundai Sonata suddenly accelerated uncontrollably for no reason, an accident resulted with minor damaged to other property and minor damage to the front of the 2006 Sonata. Is there anything wrong with the vehicle's speed control?

- Pembroke Pines, FL, USA

On April 13, 2012, July 18, 2012 and August 3, 2012, while making a slow turn into a parking area, my 2006 Hyundai Sonata suddenly accelerated uncontrollably for no reason. In each instance, an accident resulted with major damage to other property and major damage to the front end of the 2006 Sonata. My only guess, is there is something wrong with the vehicle's speed control. Updated 10/15/12

- Winter Haven, FL, USA

I have been the 1st owner and completed all scheduled maintenance, never been in accident. Always a bit bumpy shifting, but last Thursday after driving about 40M on freeway once pulling off would not stop. Car wants to continue to drive at about 40mph regardless if foot off gas pedal and applying pressure to brake. Only way to stop is to slam into neutral. When in park it reves and has rpms up. Reverse you are pulling out at 30 and slamming in neutral before you crash and then forward the same. This can not be isolated and is worse than a floor mat in a Toyota. I cant take a floor mat out to make it safe. Please help, even if they fix the problem, they tell me they have no idea is, how can I trust that my daughter and I are safe to ever be in this car again" there are 100's of posts online in regards to this issue. My car is unusable with a problem not related to lack of care or accident. I have a car I can't safely use and yet cannot afford to trade it in at this point. Nor can I afford the hundreds I have already paid to fix the yet to be fixed problem. So far two separate sensors. Should I have to pay, isn't this a manufacture defect"

- Tacoma, WA, USA

I had just left the stop light and was going up a hill when the accelerator got stuck at 55 mph, had both of my feet on brake to stop car but only slowed down to 40 and again accelerated to 55mph, there was traffic in front of me which I tried to avoid from hitting but could not avoid due to accelerator kept accelerating and brakes would not stop vehicle which I then caused an accident. Forced car to park after the accident and turned off car, car was smoking from driver side under the hood.

- Estancia, NM, USA

I had just left the stop light and was going up a hill when the accelerator got stuck at 55 mph, had both of my feet on brake to stop car but only slowed down to 40 and again accelerated to 55mph, there was traffic in front of me which I tried to avoid from hitting but could not avoid due to accelerator kept accelerating and brakes would not stop vehicle which I then caused an accident. Forced car to park after the accident and turned off car, car was smoking from drive side under the hood. I was told my floormats got stuck under gas pedal by the dealership, but my floormats do not move.

- Estancia, NM, USA

Bottom line it is my firm belief that if my family was traveling on a curving road or had my sixteen year old student driver behind the wheel we would not be writing this complaint today. The accelerator pedal on our 2006 Hyundai Sonata (VIN excluded) became stuck fully open. Yesterday evening in shelbyville ky after accelerating to get through a yellow light, the car continued to accelerate. My wife who was driving called this to my attention as she jammed the brake to the floor board. I (from the passenger seat) tried to get the car out of drive and into first gear to slow the car. The car did not seem to down shift after asking my wife if this was better said she said no! so she hit the emergency brake and the car still did not stop. But it slowed some and I thought my wife had the car under control so I pointed to a lowes parking lot and threw the car into neutral as she made the turn and the engine sounded like it was going to explode so I tried to get it back into low and it would not go. We rounded the turn into the lowes parking lot at a higher then expected speed when my wife let off a little on the brakes due to the forces on her. I had her point the car to where there were no cars and then I reached over and turned the key to off and car shut off. The smell of brakes and over heated engine was sickeningly strong. The heat from the brakes and engine could be felt several feet from the car when we went to the front of the car. We rolled the car into a parking place for safety. We then tried to get our keys out of the car and the car into park and we could not no matter what we did. We even tried to started the car and it would actually start in neutral (with the emergency brake on but not the foot brake) and yes we have witnesses to this (others tried). We called the 1-800-Hyundai emergency roadside service. They recorded our call to them with a su.

- Frankfort, KY, USA

I have a 2006 Hyundai Sonata 3.3. I started my car one morning and had no acceleration in the gas peddle. I turned the car off got husband and we restarted it and had no problem. I then took a trip to houston a few weeks later and again had the problem happen to me a few times there. I did not know what to do and had to return home. I called the dealership in houston and they said it would be a minimum of $100 dollars or more to just see what was wrong. My husband said to bring it home and we will check on it. On my trip home the ESC off light kept coming on and I lost acceleration while in motion on interstate 10. This happened to me many of times on the return trip home. When it went out on me, several times I had to coast to the side of the road and 3 times nearly got hit in the rear and 1 time was seriously almost rammed in the rear while on the side of the road letting the car rest before restarting it. The most terrifying moment was going over the bridge in baton rouge, la. And the ESC off light kicked in and I lost acceleration and there was no side road to pull over on. I had to come to a complete stop to turn off the car and restart it 3 times before the ESC off light went off and I again had acceleration. Then about 20 miles outside of metairie, la. Where I was heading, it started sputtering. The rpms would go down and the car would pull back, then they would jump up and the car would jerk forward. I finally made it to my destination what is normally a 4 1/2 hr drive turned in to a very stressful and fearful 8 hr drive. I did look up on google about 2006 Sonata's and ESC off light and found many off people having the same problem. I am putting the car in the shop tomorrow morning. I read of a woman having this problem and her car accelerating on her and plunged into a tree. This sounds to me a serious matter and seems it is going to be extremely expensive to fix when it seems to be a manufactures defect and should be fixed by Hyundai.

- Metairie, LA, USA

The contact owns a 2006 Hyundai Sonata. The contact stated that while driving at 65 mph on March 24, 2010, the vehicle suddenly lost throttle capabilities. The vehicle was towed to an authorized dealership where the contact was informed that the throttle sensor failed; the sensor was replaced at that time. On April 22, 2010, the failure occurred when the rpms suddenly increased. The vehicle was taken back to the dealership who informed the contact the accelerator pedal assembly was the cause of the failure. The repair was performed but the failure continued. The contact called the dealer and the manufacturer but was offered no assistance. The failure mileage was 52,749. The current mileage was 56,011.

- San Clemente, CA, USA

I was backing up & slightly hit a cement pillar, causing no damage to my vehicle's back bumper. I put the vehicle in drive to move slowly forward into the parking space I had left so that I could check the damage. There was only about 8-10 feet between the pillar and the parking space. The car just took off on its own at a very fast speed. I was unable to stop the car even while stepping on the brake and had no control over the car. It hit a sign and tree causing approx. $5600 damage to my vehicle. I believe there could be a defect in the gas pedal connection. (I checked after the accident to see if perhaps a car mat had gotten under the pedal, but the mat was attached to the floor holder where it belonged.) I am concerned this could happen to someone else and cause a fatality.

- Coral Springs, FL, USA

While merging on to highway car would not stop accelerating, had to cut off engine to stop the car. This is 2nd incident with the same car, first incident occurred in Feb 2007. Gas pedal assembly was replaced after the first incident, parts were lubricated. After talking to regional Hyundai representative, service manager mentioned that there were few similar incidents (2007) that's why they replaced the gas pedal assembly.

- Caldwell, NJ, USA

2006 Hyundai Sonata - when I put my foot on the gas pedal especially during city driving (nyc), the car lurches forward. Other times when I put my foot on the gas pedal it is slow to accelerate and then it lurches forward. I have taken the car 3 times to the dealership and they claim there is no problem, that it was probably from the mat causing the pedal to accelerate. However, the problem persists and after the recent problem with Toyota's gas pedals I wanted to bring this problem to your attention. Hyundai corporate has now advised me to take the care back to the dealership for a test drive to determine the problem.

- Brooklyn, NY, USA

Vehicle on several occasions has accelerated on its own while stopped, operating from 0-50 mph going forward and also in reverse at minimal speed causing personal injury and property damage.

- The Woodlands, TX, USA

That's the problem there is no serious event leading up to the problem. It is happening because theses cars are not built for safety. I have had my car for 5 months and there are some serious problems, Hyundai and you all may not think so but it is. If it was your car that had all of these problems you would be complaining also. Problems that I have with my Hyundai Sonata: Passenger airbag light on every time you crank up, airbag light in the dash board on, check engine light (sensors going bad in the car). If its not equipped for the car don't try something that's going to have people spending out of the pockets and then paying for a car also. Recalls on 06 Hyundai Sonata what's the purpose if it cant be fixed everything on the recall list is happening to my car. If I had a second chance I would not have bout that '!@#$% from Hyundai.

- Jackson, MS, USA

The contact owns a 2006 Hyundai Sonata. While driving 65 mph, the vehicle suddenly accelerated to 80 mph. The contact depressed the brake pedal with both feet, but she could not stop the vehicle. There were no prior warnings before the failure. The dealer stated that the only way the vehicle could accelerate that fast is by her floormats becoming stuck to the accelerator pedal. She replied that the floormats do not move and she was driving uphill at the time of the failure. The vehicle is currently at the dealer. The failure mileage was 55,000.

- Los Lunas, NM, USA

The contact owns a 2006 Hyundai Sonata. While driving 65 mph with the cruise control activated, the vehicle suddenly accelerated to 85 mph. The brakes were applied, but the vehicle did not stop until the key was removed from the ignition. The vehicle was towed to the dealer. The dealer was unable to duplicate or repair the failure. The failure mileage was 25,500 and current mileage was 26,000. Updated 12-12-07.

- Kansas City, MO, USA

- while driving up a hill at a speed of 30 mph, the contact was applying the brake pedal to slow down, but the accelerator pedal became stuck, causing the engine to roar loudly. The vehicle accelerated unexpectedly and the contact tried to apply the brake pedal, but the pedal would only go down approximately an inch. The contact continued to apply brake pedal with both feet, but with no results. At this point contact went to the middle lane of the road changing the vehicle from automatic transmission to manual mode. The contact down shifted from 5 to 4 gear while the engine was still revving. At this point contact turn the ignition off, but the engine didn't go off causing the contact to rear end another vehicle at a speed of 30 mph. Twice before this accident, the contact experience the battery losing power to the vehicle. The first incident occurred 24 hours after purchasing the vehicle and the second was in December 06. When the contact took vehicle to the dealer they stated that there wasn't anything wrong with the vehicle. The contact can provide copies of invoice repair and police report. Updated 02/21/07.

- Wheeling, WV, USA

: the contact stated while accelerating at anytime the vehicle hesitated without warning. The dealer indicated this was the design of the vehicle. The consumer stated the vehicle goes into neutral when the accelerator was released it would stop. Updated 07/05/06

- Cave City, AR, USA