Other speed control problem on the 2007 Chevrolet Impala
3 crashes 1 injury 4 of the 29 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 2007 Chevrolet Impala report other speed control problem at a median of 90,000 miles. A quarter of the reports come in before 45,000 miles and a quarter after 130,000 miles, from 20 reports that carried an odometer reading.
A part like this is normally expected to survive 78,000 miles. It is the 9th most-reported problem on this model year.
The mileage distribution
The reported range runs from 15,000 miles at the tenth percentile to 150,000 miles at the ninetieth, a spread of 137,116 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.
25% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 13,580 miles | 46,000 miles | 89,500 miles | 131,575 miles | 150,696 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 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 17 model years of this car. It shows up earliest on the 2014, at a median of 50,000 miles, and latest on the 2002 at 130,000 miles.
By volume the 2009 carries the most reports, with 105; the 2007 has 29. 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.
(1) my wife pulled into a parking space at our church and applied the brakes to stop. (2) the car continued on rolling over a concrete barrier and knocking down an ornamental iron fence surrounding the parking lot and continuing out into the street where it finally stopped. In addition to the damage to the fence, there was considerable damage to the front of the car. (3) cause of failure has not been identified. On one or two previous occasions, when pulling the car into our garage I have had the car stall and then surge forward. Car is being taken to a body shop to repair the damage. *tr
Tl*the contact owns a 2007 chevrolet impala. While driving approximately 40 MPH at 2,000 RPM, the contact released the accelerator pedal and the RPM immediately increased. Occasionally, the RPM will remain the same when pressure is released from the accelerator pedal. After the failure occurs, the vehicle will continue to accelerate for a few seconds. After a period of time, the RPM's will return to normal. The vehicle was taken to an authorized dealer, but they could not determine the cause of the failure. The mechanic stated that there was not a solution to correct the failure. The vehicle has not been repaired. The failure mileage was 12,500 and current mileage was 14,900. Updated 7/3/08 *cn updated 07/03/08 *jb
Vehicle's transmission slips when accelerating, and also jerks when idling. This is a common issue that has been reported in multiple places by a large number of people. Issue has been increasing in frequency - making this car unsafe to drive, yet chevrolet has not bothered to address the now obvious problem. *tr
Also reported on the 2007 Chevrolet Impala
Other electrical problem
Other engine problem
Other suspension problem
Other wheel or tire problem
Other powertrain problem
Other steering problem
How far this goes
Complaints are voluntary, so 29 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 2007 Chevrolet Impala?
Across 20 owner reports that included an odometer reading, half were filed by 90,000 miles. A quarter were filed before 45,000 miles and a quarter after 130,000 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 2007 Chevrolet Impala?
29 reports have been filed with NHTSA, about 0.4 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