Other driver assistance problem on the 2008 Chevrolet Impala
1 crash 1 of the 44 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 driver assistance problem gets reported
Owners of the 2008 Chevrolet Impala report other driver assistance problem at a median of 90,000 miles. A quarter of the reports come in before 62,500 miles and a quarter after 122,500 miles, from 36 reports that carried an odometer reading.
A part like this is normally expected to survive 45,000 miles. It is the 9th most-reported problem on this model year.
The mileage distribution
The reported range runs from 35,000 miles at the tenth percentile to 147,500 miles at the ninetieth, a spread of 111,850 miles across the middle 80% of reports.
A spread this wide points at use rather than design. Towing, climate, service history and city mileage all move a failure like this, so the median is a weak guide to any individual car.
11% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 35,650 miles | 61,963 miles | 91,048 miles | 123,000 miles | 147,500 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, 1 a crash is 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–$1,800 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.
The same failure on other years
The same failure is reported on 16 model years of this car. It shows up earliest on the 2016, at a median of 50,000 miles, and latest on the 2003 at 150,000 miles.
By volume the 2011 carries the most reports, with 102; the 2008 has 44. 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 2008 chevrolet impala. The contact had problems with traction on wet or slippery roads; however, the traction light does not illuminate. The failure also occurred while driving over a bump in the road. The vehicle was not inspected when the complaint was filed. The failure mileage was 39000 and the current mileage was 45000.
I started the car with the remote start and it was warming up, went out put my two small children I and started it with the key, went back to grab my bag, and got in to go. When I hopped in the message center was blinking; engine power reduced, stabilization track, and something else to do with the traction control. It was very cold out and we had a long drive, I was very scared we would be stranded in the cold. My car has several miles, but has always been taken care of. This is very frustrating, and scary. I have done some research on-line, and it sounds as though chevy is doing nothing to help the situation, and its happening with a lot of the same year vehicles! I love my car, this is the first big issue, I am so sad about it. I am worried about driving with my kids, from what I have read the car will just turn off! Not okay!!! I hope that something; say a recall happens so this can be repaired with few lives lost. Do they want to be like toyota and all the headache they had! *tr
I have read many other complaints similar to mine . I was driving yesterday and the "service stabilitrak, service traction control" warnings came on. After a few minutes "engine power reduced" warning came on and the car would not run over 50 MPH. This is on a 2008 chevrolet impala. I was driving 45 MPH and when the lights come on ,they just as quickly turn off and on again. The car shook and the throttle was a bit off. It was very scary to drive, especially since this happened at night and it is not the first incident.as of today, this is the 5th time I have dealt with "reduced engine power"/"service stabilitrak". Such a safety issue. Instead of being scared of getting into an accident, I'm fearful I will be the one causing the pile up. *tr
Also reported on the 2008 Chevrolet Impala
Other electrical problem
Other engine problem
Other suspension problem
Other powertrain problem
Other body or interior problem
Other speed control problem
How far this goes
Complaints are voluntary, so 44 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 driver assistance problem happen on the 2008 Chevrolet Impala?
Across 36 owner reports that included an odometer reading, half were filed by 90,000 miles. A quarter were filed before 62,500 miles and a quarter after 122,500 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is other driver assistance problem on the 2008 Chevrolet Impala?
44 reports have been filed with NHTSA, about 0.6 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