My car stalls while in motion without warning. While driving the vehicle will randomly speed up and rpm will fly up without command. I also experience a lot of engine power loss randomly the vehicle will bog and be slow. Occasionally when I press on the accelerator I can almost go to the floor with no response from the vehicle. Speed acceleration response is delayed approximately 30 seconds occasionally. Uncommanded acceleration and random stalling when vehicle is in motion has been a big safety risk for me. This issue has been ongoing for awhile. This issue has occurred countless times so it’s very frequent. This complaint is in compliance with the current open investigation regarding the throttle control system vulnerabilities. the federal safety agency Action Number: DP21003
2011 Hyundai Elantra acceleration problems
16 complaints (4% of all complaints for this car). Typical mileage when it fails: 55,400. 1 crash reported.
- owner complaints
- 16
- of this car's complaints
- 4%
- typical mileage
- 55,400
- crashes
- 1
- recalls
- 0
Which part fails
- Cruise control1
At what mileage
Complaints by mileage at the time of the problem.
Hyundai Elantra acceleration problems in other years
Related recalls
No recalls on record for this model year.
Related investigations
Throttle control system vulnerabilities
The Office of Defects Investigation (ODI) of the federal safety agency received a petition letter dated October 10, 2021, requesting an investigation of possible defects in the electronic throttle control (ETC) system on certain Kia vehicles resulting in the opening of DP21-003. Accordingly, Model Year (MY) 2005-2016 Kia Optima/K5, MY 2006-2015 Kia Sorento, MY 2007-2016 Hyundai Elantra, MY 2007-2016 Hyundai Santa Fe, MY 2006-2015 Hyundai Sonatas are all part of the subject population. The petition was originally filed as a Vehicle Owner Questionnaire that can be reviewed at under reference (ODI) number 11439675.On November 12, 2021, ODI opened Defect Petition DP21-003 to evaluate the petitioner?s request. ODI performed trend analyses of the VOQs related to vehicle speed control issues for all the subject vehicles and found that none of the 52 Model/Model Year Hyundai/Kia vehicles demonstrated any actionable trend that warranted an investigation.Petitioners submitted 1119 VOQs and non-VOQ cases in which sudden uncommanded acceleration (SUA) or loss of motive power (LOMP) incidents were alleged.For the 1119 reports, 220 were incidents involving crashes, from which 69 subject Hyundai-Kia vehicles were inspected by Hyundai/Kia dealer technicians, Hyundai/Kia engineers, and/or third-party representatives.ODI found the inspections identified no vehicle defects related to the ETC system.Of the 220 crash-involved reports, 13 Event Data Recorder (EDR) records were downloaded successfully and 11 of those indicated driver error: (i.e.) pedal misapplication.A condition where the accelerator pedal is mistakenly applied instead of the brake pedal when the driver wants to stop the vehicle.In addition, ODI reviewed a scientific journal paper published in Forensic Science International in 2016 by Mr. Park et al ., as well as related test videos. ODI does not believe there is any evidence of uncontrollable SUA occurrences in any of the tests reviewed. the federal safety agency's Office of Vehicle Safety Compliance (OVSC) reviewed the allegations regarding the potential noncompliance with Federal Motor Vehicle Safety Standard No. 124.Based on the information provided, the Agency concludes there is insufficient information for us to determine if a possible non-compliance exists.Finally, both Hyundai and Kia informed ODI that all their vehicles manufactured after 2012 were equipped with an ETC management system, in which the engine speed will go to idle when the system sees signals from both the brake pedal and accelerator pedal at the same time; this is commonly known as the brake-throttle override system.After thoroughly assessing the material submitted by the petitioner, information already in the federal safety agency's possession, information submitted by Hyundai and Kia in response to an Information Request letter, and the potential risks to safety implicated by the petitioner's allegation, the federal safety agency does not believe that a formal investigation is warranted. After full consideration of appropriate factors, the petition is denied. A Federal Register Notice (FRN) further detailing the federal safety agency?s reasons for denial of the petition will be published.
DP21003
What 2011 Hyundai Elantra owners say
Most recent owner complaints, unedited.
Tl* the contact owns a 2011 hyundai elantra. The contact stated while driving 35 MPH, the air bag warning light illuminated. Additionally, the contact was unable to activate the cruise control. The vehicle was taken to independent mechanic and was informed that the clockspring needed to be replaced. The vehicle was taken to the local dealer empire hyundai inc located at 428 pleasant st, fall river, ma 02721, (833) 345-8027, and the dealer was made aware of the failure. The vehicle was not repaired. The manufacturer had not been informed of failure. The failure mileage was approximately 99,400.
Tl* the contact owns a 2011 hyundai elantra. While driving, the electronic stability control (ESC) indicator illuminated. The contact stated that the accelerator sensor was causing the vehicle to lose power for approximately three seconds. The contact depressed the accelerator pedal again and the vehicle operated normally. If the contact pushed the ESC button, the vehicle would operate normally. The contact called don franklin lexington hyundai (3340 richmond rd, lexington, ky 40509, (859) 263-5020) and was quoted a repair cost of $900 for the sensor, which did not include labor. The manufacturer was not contacted. The failure mileage was 125,200.
While driving the car one or more of the brakes get active without using the brakes . Abs start kicking and the car loose power . If I hate the brake the brake parks get really sensitive and the car start shaking . Happened too many times and I took the car to the dealer for diagnostic and they said they couldn't fined any problems . From my experience this is a use sensor problem and I spoke with honda of america and they said my car and my VIN # has no recall .
Tl* the contact owns a 2011 hyundai elantra. The contact stated that the vehicle experienced a loss of engine power while being operated at approximately 55 MPH. The failure occurred without warning. Vision hyundai webster (755 ride rd, webster, ny) was contacted, but the failure was not diagnosed. The manufacturer was not notified. The failure mileage was 12,554.
In may 2014 while utilizing the cruise control,applying the brakes did not disengage the cruise control even while my husband was braking to decrease speed as we were entering bastrop, tx on hwy 71. It took us by surprise, and my husband finally managed to bring the car under control by pressing the cruise control disengage button on the steering wheel. I took our vehicle to the dealership where we purchased the car, and the dealership replaced the brake light switch. On sunday, nov. 27, 2016, we were using the cruise control while we were traveling southbound on hwy 79 approaching hearne, tx. The car in front of us slowed, and my husband braked to slow down as well, but it seemed that the car actually sped up. He looked down to be sure that he hit the brake and not the accelerator. By the time he looked up, we were about to hit the vehicle in front of us. He hit the brakes harder, and the car seemed to speed up again. My husband swerved to the left to avoid hitting car in front of us, but there was another vehicle next to us in the lane to our left. Fortunately, the drivers of the other vehicles managed to swerve to the right and to the left so that we had room to pass between the two vehicles. Our brakes were squealing, but the car was not slowing down. Finally my husband managed to disengage the cruise control and pulled off the road so that we could collect our composure. I returned to the hyundai dealer in round rock on november 29. The service manager told me that my vehicle was no longer under warranty, so I would have to pay to have the issue fixed. I know that hyundai and kia have had recalls for defective brake light switches on other models, model years, and I believe that this is a continuation of the same type issue with my vehicle. It is truly a safety issue, and I think that hyundai should fix this again on my vehicle at no charge.
When driving it is difficult at time to regulate my speed. If I stop at a red light and then try to drive on a green light my car will jolt forward. It is hard to speed up, it feels like my car is stuck in on speed. It makes it difficult to drive on the freeway as it is slow to pick up speed.
Driving home from work on narrow 2 lane road.,my car suddenly accelerated and shot across the opposite side of oncoming lane..thankfully no car was coming toward me.at the time. I managed to get it under control, but was terrified thinking what if a car had been coming up toward me. This happened sometime in summer of 2013. I thought maybe it was just a fluke until today when I was reading about chrysler autos having sudden acceleration problems. I decided to check to see if any hyundai cars had the same problem. I was surprised to see that indeed there had been a case reported. Now, I am very uneasy driving my car, and especially since my 19 yr old also drives it. I have not seen any recall to have this issue fixed. I have also email the hyundai corp. To inform them also of my experience. I certainly do not want to die or have any one else killed because of this. Would like to see hyundai recall these cars to fix the problem.
While driving my vehicle on the freeway traveling at speeds of about 60 MPH, my tire pressure light came on, although all 4 tires were previously checked for pressure. When the tire pressure light came on, it triggered the traction control light to begin blinking uncontrollably. The engine then began to clicked loudly as my speed decreased, out of my control, to about 40 MPH, although I had my petal to the floor. I then had to exit, taking local roadways as to my speed would not increase past 40 MPH with my RPM was at about 4.5. After notifying the dealership and taking it in to be serviced, I was informed nothing was wrong but reset the computer just in case. Since then it has happened 3 other times with no explanation and diagnostic coming back clear.
As I was driving the skid control light came on. At first, nothing was different, then all of a sudden my car started slowing down and would accelerate with gas being applied. Then, it started moving again. After a while the light went off, but then came on and did the same thing.
Questions about the 2011 Hyundai Elantra acceleration
Does the 2011 Hyundai Elantra have acceleration problems?
Owners have filed 16 complaints about the acceleration of the 2011 Hyundai Elantra, 4% of all its complaints.
At what mileage do 2011 Hyundai Elantra acceleration problems start?
The typical (median) mileage in owner complaints is 55,400 miles.
Was there a recall on the 2011 Hyundai Elantra acceleration?
There is no recall for this problem on this model year.
What year does the Hyundai Elantra have the most acceleration problems?
The Hyundai Elantra model years with the most acceleration complaints are 2013 (50 complaints), 2012 (27 complaints) and 2014 (27 complaints).
Other 2011 Hyundai Elantra problems
Engine 97Airbags 77Steering 75Suspension 66Electrical 51Brakes 44Driver assistance 38Transmission 21Wheels 18Tires 12Lights 10Fuel system 8Visibility 7Body 6Seat belts 2
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