Other speed control problem on the 2009 Chevrolet Silverado 2500
Only 4 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 4 reports of other speed control problem on the 2009 Chevrolet Silverado 2500, 4 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 |
|---|---|---|---|---|
| — | — | 1,551 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
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 6 model years of this car. It shows up earliest on the 2009, at a median of 1,600 miles, and latest on the 2003 at 110,000 miles.
By volume the 2003 carries the most reports, with 8; the 2009 has 4. 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 2009 chevrolet silverado 2500. The vehicle was purchased in march of 2009. Since that time, the vehicle accelerates suddenly. The contact took the vehicle to the dealer on four occasions. On one occasion, while slowing down for a traffic light at 20 MPH, the vehicle proceeded to move forward while the brake pedal was depressed. The vehicle stopped when the ignition was turned off. The dealer was unable to diagnose the failures; however, they installed a device that should be able to read the electronic activities. The contact is concerned that he might crash into another vehicle due to the unexpected acceleration. The manufacturer filed report number 71-7284 and stated that the report will be closed because the failure was intermittent. The failure mileage was 2,000 and current mileage was 5,000. Updated 06/12/09 *bf updated 06/16/09.*jb
While driving normally (35-40 MPH on a residential road) in dry conditions, the check engine light illuminates and the onboard error message reads "service traction control, service stabilitrak, engine power down." consequently, the vehicle will not travel faster than approximately 40 MPH and steering sharply becomes difficult. This error has occurred twice in the 11 weeks we have had our new 2009 silverado 2500 hd. With the first repair (odometer 1101 miles), they could not find anything wrong with the truck. They just reset the computer. The second repair was 4 days ago (3948 miles). They found the "I/p to body harness connector corroded, cleaned the terminals, and applied dielectric grease." we are extremely fearful that this defect will occur again while we are towing a 5500 pound travel trailer. Without steering, stability and engine power a serious accident could occur. When my concerns were explained to the local gm dealership, the general manager stated that he could not guarantee that they could fix our truck or guarantee it would be safe to tow a trailer. *tr
Tl* the contact owns a 2009 chevrolet silverado 2500. The contact stated that when depressing the accelerator pedal, there was a slight delay of several seconds before the vehicle would respond. Once the vehicle did engage, it would accelerate rapidly and uncontrollably. The contact also stated that when releasing the accelerator pedal, it would take several seconds before the vehicle would decelerate. The contact took the vehicle to the dealer and was told there was nothing that could be done to remedy the issue with the vehicle. The vehicle was not repaired. The failure mileage was 10 and the current mileage was 50,000. .. Updated 02-07-13 *bf the consumer stated the vehicle is dangerous to drive on snow covered and slippery roads. When accelerating from a stop sign or a corner, the sudden uncontrolable acceleration is dangerous. Not being able to decelerate the engine usually causes the vehicle to spin out of control. Updated 02/13/2013 *js
Also reported on the 2009 Chevrolet Silverado 2500
Airbag inflator rupture
Other body or interior problem
Other electrical problem
Wiring harness or short circuit
Engine sensor failure
Headlight failure or clouding
How far this goes
This page is kept out of search results because 4 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 4 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 2009 Chevrolet Silverado 2500?
Across 4 owner reports that included an odometer reading, half were filed by 1,600 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 2009 Chevrolet Silverado 2500?
4 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