Control module (ECM/PCM/BCM) failure on the 2015 Chevrolet Silverado 1500
3 crashes 3 injuries 6 of the 12 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 control module (ecm/pcm/bcm) failure gets reported
Owners of the 2015 Chevrolet Silverado 1500 report control module (ECM/PCM/BCM) failure at a median of 55,000 miles. A quarter of the reports come in before 40,000 miles and a quarter after 90,000 miles, from 8 reports that carried an odometer reading.
A part like this is normally expected to survive 92,000 miles. It is the 25th most-reported problem on this model year.
The mileage distribution
The reported range runs from 35,000 miles at the tenth percentile to 110,000 miles at the ninetieth, a spread of 76,806 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.
13% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 34,694 miles | 41,029 miles | 55,690 miles | 89,750 miles | 111,500 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, 3 a crash and 3 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 $700–$3,000 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.
The same failure on other years
The same failure is reported on 21 model years of this car. It shows up earliest on the 2020, at a median of 15,000 miles, and latest on the 2002 at 130,000 miles.
By volume the 2014 carries the most reports, with 29; the 2015 has 12. 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 2015 chevrolet silverado 1500. While driving approximately 15-20 MPH, the service power steering warning indicator illuminated and the power steering failed. The contact stated that it became difficult to maneuver the vehicle. An unknown dealer was contacted; however, they would not have been able to service the vehicle for a week. The vehicle was taken to an independent mechanic where it was diagnosed that the power control module for the electronic power steering needed to be replaced. The vehicle was repaired. The vehicle was not included in NHTSA campaign number: 14v719000 (steering). The manufacturer was also notified of the failure and provided case number: 8-3776324755. The approximate failure mileage was 38,116.
Complete loss of power steering. I was leaving my local bank and the service power steering light came on and I lost all power steering and it had not returned. I did some online searching and found there was a recall but the symptoms were loss and immediate return of power steering but thought maybe mine was also associated. I took my truck to lynn smith chevrolet in burleson tx and was told the power steering control module was bad and the entire steering rack needed to be replaced which is $3,000 out of my pocket. My truck is a 2015 with 53,xxx miles it had never acted strange or given me any problems until that one incident. I was extremely lucky to have a break in traffic as it caused me to occupy all three lanes with my 10 year old daughter in the truck.
Also reported on the 2015 Chevrolet Silverado 1500
Other brake problem
Other steering problem
Other electrical problem
Other powertrain problem
Other engine problem
Air conditioning failure
How far this goes
Complaints are voluntary, so 12 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 control module (ecm/pcm/bcm) failure happen on the 2015 Chevrolet Silverado 1500?
Across 8 owner reports that included an odometer reading, half were filed by 55,000 miles. A quarter were filed before 40,000 miles and a quarter after 90,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is control module (ecm/pcm/bcm) failure on the 2015 Chevrolet Silverado 1500?
12 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