Parking brake failure on the 2003 Chevrolet Silverado
When parking brake failure gets reported
Owners of the 2003 Chevrolet Silverado report parking brake failure at a median of 50,000 miles. A quarter of the reports come in before 45,000 miles and a quarter after 100,000 miles, from 13 reports that carried an odometer reading.
A part like this is normally expected to survive 88,000 miles. It is the 18th most-reported problem on this model year.
The mileage distribution
The reported range runs from 35,000 miles at the tenth percentile to 130,000 miles at the ninetieth, a spread of 96,000 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.
23% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 35,000 miles | 43,000 miles | 52,000 miles | 98,000 miles | 131,000 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–$1,300 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 10 model years of this car. It shows up earliest on the 2015, at a median of 200 miles, and latest on the 2005 at 90,000 miles.
By volume the 1999 carries the most reports, with 63; the 2003 has 16. 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.
Your id#05v161000 should also include chevy trucks with automatic transmissions. I own a 2003 chevy silverado 2500 hd 4 wheel drive. I have an automatic transmission and my parking brake has'nt held since last fall. Its holding power had gotten continually weaker since the purchase date (9-30-02). Chevy told me I had to adjust it, I did, twice. I can't adjust it anymore. Additionally, my windshield has a perfect crack in it that follows the uppermost blow pattern of the defrost vents perfectly. This crack started during the first cold spell this past winter. It grew everytime I used the defroster. It stretches all the way across my windshield at this point. Chevy told me that since there were imperfections in the glass, caused by wear and tear, that the windshield was not thier responsibility. The imperfections they found were not visible to the naked eye. Damage by road debris would be accompanied by 'spidering' of the glass. None such on my windshield.
Your id#05v161000 should also include chevy trucks with automatic transmissions. I own a 2003 chevy silverado 2500 hd 4 wheel drive. I have an automatic transmission and my parking brake has'nt held since last fall. Its holding power had gotten continually weaker since the purchase date (9-30-02). Chevy told me I had to adjust it, I did, twice. I can't adjust it anymore. Additionally, my windshield has a perfect crack in it that follows the uppermost blow pattern of the defrost vents perfectly. This crack started during the first cold spell this past winter. It grew everytime I used the defroster. It stretches all the way across my windshield at this point. Chevy told me that since there were imperfections in the glass, caused by wear and tear, that the windshield was not thier responsibility. The imperfections they found were not visible to the naked eye. Damage by road debris would be accompanied by 'spidering' of the glass. None such on my windshield.
I brought my 2003 chevrolet truck in for an annual inspection and they informed me that the rear brakes (rotors, pads and emergency brake pads) needed to be replaced. The truck has 35,000 miles on it and the rear rotors are heavily rusted and are crumbling away. The disc brake pads are also completely worn out. There was no accident but I believe this is a significant safety issue and is the result of defective parts on these vehicles. I have seen many other comments on the internet from other silverado owners indicating that they have the same problem. I believe that chevrolet should recall these rotors and pads and correct the problem before there are serious accidents from failing brakes. *nm
Also reported on the 2003 Chevrolet Silverado
Loss of braking
Instrument cluster or gauge failure
Other brake problem
Brake line, hose or caliper failure
Other electrical problem
Other powertrain problem
How far this goes
Complaints are voluntary, so 16 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 parking brake failure happen on the 2003 Chevrolet Silverado?
Across 13 owner reports that included an odometer reading, half were filed by 50,000 miles. A quarter were filed before 45,000 miles and a quarter after 100,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is parking brake failure on the 2003 Chevrolet Silverado?
16 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