Other speed control problem on the 2011 Kia Forte
5 crashes 1 fire 1 injury 7 of the 9 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 9 reports of other speed control problem on the 2011 Kia Forte, 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 6th most-reported problem on this model year.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| — | — | 40,000 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, 5 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 10 model years of this car. It shows up earliest on the 2020, at a median of 5,000 miles, and latest on the 2014 at 145,000 miles.
By volume the 2016 carries the most reports, with 14; the 2011 has 9. 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.
Tl* the contact owns a 2011 kia forte. The contact was depressing the brake pedal and moved the gear shifter into park when the vehicle suddenly accelerated, causing the contact to crash into a curb. The failure recurred, causing the contact to crash into a tree. The contact also noticed lurching and hesitation while driving at various speeds. The vehicle was taken to the dealer for diagnostics where the technician was unable to diagnose the failure. The vehicle was not repaired. The approximate failure mileage was 1000. Updated 04/10/12*lj updated 04/23/12
When going 60 on the highway the car suddenly dropped down to 40 and I had to pull off the highway. Car was then taken to the dealership where the whole transmission was replaced. Upon recieving the car again it would jerk and stall when accelerating. Car was then taken back to the dealer and a "relearn" of the transmission was performed. This has not stopped the problem and has made it worse. It now jerks when stopping and when accelerating and peeds of 5 mi/hr or more. As well as when first shifting the car out of park. *js
Living only 3.7 miles from my work I drive to work 2 times daily, mon- fri, round trip. I come home for my lunch hour. Never being able to drive faster than 20-30 MPH due to the roads & busyness of them during that time I had never had a problem before. I had noticed prior to my accident that at times my 6 speed 2011 kia forte koup was very resistant to put it into 1st gear. Almost as if it was locking the shifter out. Having it looked at by a kia dealership, they claimed it was just "user error"...perhaps my foot wasn't pressed all the way down on the clutch or b/c I'm a woman? This was not my first manual car! So as I left my house for work after lunch I noticed that every time I upshifted my car did this jerking thing, almost as if the brakes were working when they shouldn't have been. I told myself when I get to work (in 8 mins) I would call my brother who is a mechanic. I didn't get my car to work safely. I ended up rear ending a truck who rolled forward into a new camaro, everyone was ok thank god! As I approached the stop light w/3 cars stopped at the red light already. I proceeded to slow down .3 miles from the light & it…
Also reported on the 2011 Kia Forte
Other engine problem
Other brake problem
Other powertrain problem
Airbag failed to deploy in a crash
Other electrical problem
Airbag warning light or occupant sensor fault
How far this goes
This page is kept out of search results because 9 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 9 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 Kia Forte?
Across 7 owner reports that included an odometer reading, half were filed by 40,000 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 2011 Kia Forte?
9 reports have been filed with NHTSA, about 0.3 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