Other speed control problem on the 2015 Hyundai Elantra
3 crashes 1 fire 1 injury 5 of the 13 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.
Only 7 reports for this mode came with an odometer reading, which is too few for percentiles to mean anything. The page is here because someone linked to it; treat the figures as anecdotes, and see the full report for this year instead.
When other speed control problem gets reported
There are 13 reports of other speed control problem on the 2015 Hyundai Elantra, 7 with a mileage attached. That is too few to place the failure on the odometer with any confidence.
A part like this is normally expected to survive 78,000 miles. It is the 5th most-reported problem on this model year.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| — | — | 20,000 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, 3 a crash, 1 a fire and 1 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 5,000 miles, and latest on the 2009 at 85,000 miles.
By volume the 2013 carries the most reports, with 31; the 2015 has 13. 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.
Safety concern: the contact owns a 2015 hyundai elantra. The contact stated that while driving at 45 MPH, the vehicle violently surged forward after depressing the accelerator pedal. The contact was able to avoid an accident by immediately depressing the brake pedal. The contact also stated that the vehicle was difficult to maneuver. The vehicle was taken to an independent mechanic where the failure was unable to be determined. The vehicle was not repaired. The contact was concerned for their safety. The manufacturer was notified of the failure. The failure mileage was 3,077.
Tl* the contact owns a 2015 hyundai elantra. While driving at an unknown speed, the contact's vehicle accelerated rapidly and crashed into the rear of another vehicle. The contact mentioned that the rapid acceleration was a recurring failure prior to the crash. The air bags failed to deploy and there were no injuries sustained. A police report was filed. The manufacturer was not notified of the failure. The failure mileage was 1,700.
I began my lease on my elantra in sept of 2014. At my year anniversary I had it serviced by the dealer of the lease and was given a clean bill of car health. However, on several occasions the car had, as I called it, "a mind of its own" meaning that while I was driving, usually somewhere around 40-55 MPH without me pushing down on the gas pedal the car would accelerate on its own. It would stop as soon as I completely let off the gas pedal but it happened enough to be considered strange. I was planning to ask the dealer about it at my next oil change. Not necessary now! Sunday afternoon 10/18/15, I went to start the car and it sputtered and stalled out. I turned the key in the ignition again and it repeated. After the 3rd time and giving it some gas the car started and ran ok. I had 3 stops that I made, each time the car was turned off and back on with no issue. I returned home and not even 5 minutes after the car was parked and shut off, there were flames shooting out between the hood and windshield. I hit the fire emergency on my house alarm system to signal for the fire dept and then ran outside with my husband and 2 fire…
Also reported on the 2015 Hyundai Elantra
Other engine problem
Other brake problem
Other electrical problem
Other steering problem
Stalling while driving
Other wheel or tire problem
How far this goes
This page is kept out of search results because 13 reports is not enough to publish percentiles from. It stays reachable because somebody looking at this exact car would rather see the reports than be told there are none.
Complaints are voluntary, so 13 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 2015 Hyundai Elantra?
Across 7 owner reports that included an odometer reading, half were filed by 20,000 miles. A quarter were filed before — and a quarter after —. 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 2015 Hyundai Elantra?
13 reports have been filed with NHTSA, about 0.1 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