Other brake problem on the 2003 GMC Sierra 2500
1 crash 1 of the 23 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 brake problem gets reported
Owners of the 2003 GMC Sierra 2500 report other brake problem at a median of 90,000 miles. A quarter of the reports come in before 50,000 miles and a quarter after 125,000 miles, from 22 reports that carried an odometer reading.
A part like this is normally expected to survive 88,000 miles. It is the 1st most-reported problem on this model year.
The mileage distribution
The reported range runs from 40,000 miles at the tenth percentile to 140,000 miles at the ninetieth, a spread of 97,900 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.
9% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 41,700 miles | 51,208 miles | 87,500 miles | 123,750 miles | 139,600 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 $300–$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 14 model years of this car. It shows up earliest on the 2017, at a median of 1 miles, and latest on the 1999 at 170,000 miles.
By volume the 2003 is the worst of them, which makes this a problem of this specific year rather than of the model as a whole.
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.
Started feeling less braking power and squealing at 25000 miles on the odometer. Took truck to dealer to check it , found rear brakes to be 100% wore out. Rear rotors are flaking apart. *jb
My truck only has half of it's braking power. The brake pads are rusted to the slides & have not moved for a very long time the rotors on all 4 wheels are completely engulfed in rust. These are the original brakes. I took the truck to gmc for service [oil change] & they stated the rear rotors were "very rusty". I asked the serviceman what to do & he said either I needed to have the rotors turned or the brakes would wear out prematurely. It is obvious to me now [after looking at the brakes personally] that they were not working or the rotors wouldn't be rusty at all. There was never anything said about the brakes not working or the extreme safety issue of a 3/4 ton truck going down the road with only half of it's braking power. I talked to the bbb and they said when I took the truck in it had 48000 miles on it & was out of warranty. I have no doubt that this situation started before the warranty expired but I was not aware of it. My truck is a 2003 and I take very good care of it [serviced regularly and garage kept] and there is no reason the brakes should have rusted this way unless inferior parts or workmanship is involved. I…
Tl*the contact owns a 2003 gmc sierra 2500. While driving 30 MPH the contact applied the brakes and noticed that the stopping distance of the vehicle increased. The vehicle was taken to the dealer where the brake lines, front and rear rotors, and brake pads were replaced. The current and failure mileages were 49000.
Also reported on the 2003 GMC Sierra 2500
Loss of braking
Other electrical problem
Instrument cluster or gauge failure
Brake line, hose or caliper failure
Other fuel system problem
Rust or structural corrosion
How far this goes
Complaints are voluntary, so 23 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 brake problem happen on the 2003 GMC Sierra 2500?
Across 22 owner reports that included an odometer reading, half were filed by 90,000 miles. A quarter were filed before 50,000 miles and a quarter after 125,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is other brake problem on the 2003 GMC Sierra 2500?
23 reports have been filed with NHTSA, about 41 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