Parking brake failure on the 2003 Chevrolet Silverado 1500
1 crash 1 of the 19 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 parking brake failure gets reported
Owners of the 2003 Chevrolet Silverado 1500 report parking brake failure at a median of 80,000 miles. A quarter of the reports come in before 35,000 miles and a quarter after 145,000 miles, from 18 reports that carried an odometer reading.
A part like this is normally expected to survive 88,000 miles. It is the 13th most-reported problem on this model year.
The mileage distribution
The reported range runs from 25,000 miles at the tenth percentile to 165,000 miles at the ninetieth, a spread of 135,800 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.
28% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 26,900 miles | 35,826 miles | 79,000 miles | 146,250 miles | 162,700 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–$1,300 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 16 model years of this car. It shows up earliest on the 1998, at a median of 5 miles, and latest on the 2008 at 130,000 miles.
By volume the 2001 carries the most reports, with 53; the 2003 has 19. 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.
Parking brake is not holding. I have an automatic silverado ss 6.0 v8 2003 model. I started to roll down a hill because my brakes didn't hold. The only thing that held was my automatic transmission gears and that is putting a strain on them and makes it hard to take in and out of gear. *jb
Tl*the contact owns a 2003 chevrolet k1500. The contact stated that the vehicle was parked on an incline in his carport with the emergency brake activated and the gear shifter positioned properly. The vehicle rolled and crashed into a house without warning. There were no personal injuries and the vehicle sustained moderate damages. In addition, there was damage to the property's foundation, siding, and gutters. The vehicle was driven to the contact's residence. Two years prior to the failure, the dealer performed a free remedy repair on the emergency service brake. The vehicle has not been repaired and the cause of the failure has not been determined. The current and failure mileages were 250,000. Updated 3/16/09 */cn the consumer stated the parking failure was the cause of the vehicle rolling down a hill and crashing into a neighbor's house. Updated 03/19/09. *jb
2003 chevy silverado - poor steering- I have replaced the gearing box w/front end alignment due to having 4 estimates and advised that the gear box was defected. 6 months later - I have been advised by several certified mechanics that the gear box that was put in is also defected. Poor steering control, truck pulls all over the road which could result in a crash. If the steering boxes for this year/make vehicles are defected, why not compensate the owners for all the expenses. It is obvious that these parts for this year vehicle is in fact defected. How many complaints/accidents/injuries does it take before these issues are acknowledged? I have spent over $1,500.00 just in the braking and steering repairs and yet faced again with more cost or either get rid of my truck that I had for 1 year. *tr
Also reported on the 2003 Chevrolet Silverado 1500
Loss of braking
Instrument cluster or gauge failure
Other brake problem
Brake line, hose or caliper failure
ABS module or sensor failure
Other electrical problem
How far this goes
Complaints are voluntary, so 19 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 1500?
Across 18 owner reports that included an odometer reading, half were filed by 80,000 miles. A quarter were filed before 35,000 miles and a quarter after 145,000 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 1500?
19 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