Other speed control problem on the 2011 Hyundai Sonata
14 crashes 8 injuries 22 of the 49 reports for this failure mention a crash, a fire, an injury or a death. Those are the owner's words on the complaint form, not a verified finding, and one report can mention more than one.
When other speed control problem gets reported
Owners of the 2011 Hyundai Sonata report other speed control problem at a median of 57,500 miles. A quarter of the reports come in before 22,500 miles and a quarter after 85,000 miles, from 37 reports that carried an odometer reading.
A part like this is normally expected to survive 78,000 miles. It is the 21st most-reported problem on this model year.
The mileage distribution
The reported range runs from 10,000 miles at the tenth percentile to 100,000 miles at the ninetieth, a spread of 90,803 miles across the middle 80% of reports.
When the reports scatter this far, the mileage is telling you about how these cars were driven more than about the part itself.
32% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 9,997 miles | 23,594 miles | 57,000 miles | 85,284 miles | 100,800 miles |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
What happens, and what it costs
Of these reports, 14 a crash and 8 an injury are mentioned. Owners write their own complaints and the agency does not verify them, so read this as what the reports say happened rather than as a confirmed count.
Putting it right typically runs $250–$2,000 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
This mode is classified as critical, which means a failure can leave the car unable to stop, steer, or stay out of the way of traffic. It is weighted accordingly in the risk score.
The same failure on other years
The same failure is reported on 23 model years of this car. It shows up earliest on the 2020, at a median of 700 miles, and latest on the 2002 at 140,000 miles.
By volume the 2013 carries the most reports, with 56; the 2011 has 49. A mode that appears across most years of a model is usually a design choice rather than a bad batch.
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
Sonata 2011 horn and acceleration problems. People can not hear the horn. Also when I test drove they sonata the test car had problems where there was accelerator problems. When I stepped on the gas the car almost quit, paused and they took off. This is dangerous and could cause an accident by not accelerating in time. This has happened on my car at least 7 times, accelerate, pause or hesitation the motor kicks in. When I asked the salesman about it at the dealer he told me the motor on the test car was probably cold. This happens when the car is warmed up. This is very scary when you pull out in traffic. Also the horn is a joke. You can't hear the horn and it needs to be replaced. *tr
I bought the sonata 2011 turbo in 7/15/2011 the first day I test drove the car I asked the sales man if they aligned the car and he said it was done already. Several months later I called them and said the car is out of control the steering keeps to the right and I am tired of pulling it to the left. Also the speed is uncontrollable I have to take my foot of the accelerator in order for the car to slow down other wise I would be going 80mph on the fwy. It is very hard to keep consistency of the speed. I took the car back on october 21 the first time and they told me its normal. I was upset and told them that my 17 year old almost got into an accident due to not being able to control the car at a turn. They ignored me and still insist that the car was normal. I went back yesterday for the second time and test drove the car with their mechanic and he said that the car was fine and its all normal. I was never told that there was a recall on the car. I only found out about this today when I went back to speak to the manager for the third time is when they told me that all the sonata 2011 have a pulling problems and it has no return…
Add on to odi # 10440320 I was driving and twice when I tried to stop to make a turn the engine kept overriding the brake and the car kept lurching ahead. I applied the brake peddle as hard as I could and the car would not stop. When I released the break peddle, the car started acting normal again. By this time I was way over the center line of the road and if there had been another car at the intersection I would have certainty hit them. This is the second and third time this has happened with this car and I believe it should be taken off the road before someone get killed. If I was pulling up behind another car at a stop sign and this happened I would rear end the car in front. If I was stopping at a pedestrian crossing and this happened I could run someone over and kill them. *tr
Also reported on the 2011 Hyundai Sonata
Other steering problem
Other engine problem
Steering column or shaft failure
Airbag warning light or occupant sensor fault
Other electrical problem
Tail light, brake light or signal failure
How far this goes
Complaints are voluntary, so 49 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does other speed control problem happen on the 2011 Hyundai Sonata?
Across 37 owner reports that included an odometer reading, half were filed by 57,500 miles. A quarter were filed before 22,500 miles and a quarter after 85,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is other speed control problem on the 2011 Hyundai Sonata?
49 reports have been filed with NHTSA, about 0.2 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed