Loss of braking on the 2003 Chevrolet Avalanche
1 crash 1 of the 24 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 loss of braking gets reported
Owners of the 2003 Chevrolet Avalanche report loss of braking at a median of 110,000 miles. A quarter of the reports come in before 65,000 miles and a quarter after 150,000 miles, from 23 reports that carried an odometer reading.
A part like this is normally expected to survive 78,000 miles. It is the 1st most-reported problem on this model year.
The mileage distribution
The reported range runs from 35,000 miles at the tenth percentile to 195,000 miles at the ninetieth, a spread of 158,080 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.
13% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 36,700 miles | 66,568 miles | 110,000 miles | 148,926 miles | 194,780 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 $400–$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.
This mode is classified as critical, which means a failure can leave the car unable to stop, steer, or stay out of the way of traffic. It is weighted accordingly in the risk score.
The same failure on other years
The same failure is reported on 3 model years of this car. It shows up earliest on the 2002, at a median of 70,000 miles, and latest on the 2003 at 110,000 miles.
By volume the 2002 carries the most reports, with 30; the 2003 has 24. 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.
Brakes failed, almost slide into cross way traffic. Took into 2 different repair facilities( firestone & merlin brakes) they both informed me that all 4 rotors were rusted entirely through from inside out, my truck is only 2 years old. I tried to get the manufacture to cover the cost of the rotors but they refused and informed me that the only items to rust on my car was caused by the environment, and the 2 people I spoke to were of no help, very rude and would not give me the telephone number to the corporate office. ( michell balykeo and steven schwausch). I have just been turned down today and will try to have my truck repaired shortly. *jb
Dt: the caller complained about brake failure at low speeds. He stated that on curves when slowing down brakes failed. The caller had pads and rotors replaced a month ago. He said the rear rotors were more worn out than the front rotors. Recall 05v379000 on ABS brakes was issued. This vehicle was not included due to model year. Dealer said it was the consumer's fault, and they could not duplicate the problem. Dealer said they would call manufacturer, and have them get in contact with dealer. The caller had a near miss accident at a stop sign. *ak
I was driving down hwy 316 and began approaching a red light. When I attempted to begin stopping for the red light, my brake pedal went all the way to the floor and the brakes didn't seem to be working. Luckily I was able to safely pull off the right side of the road and was able to avoid hitting any other vehicles or objects. I then pulled into an empty parking lot about 50 feet away. When I got out of my vehicle and starting looking around I could see fluid dripping on the ground next to the driver side front wheel. I then was able to find that the fluid was brake fluid and it was coming from a pinhole sized leak in the stainless steel brake line coming from the master cylinder and going to the ABS system. After closer inspection I have discovered that all my steel brake lines are severely rusted. There were no warning signs, lights, bongs, or beeps until after my brakes failed.my brakes would barely work,the pedal would go to the floor and I would only be able to slow my vehicle down enough to shift into neutral and then shift into park to completely stop. I consider myself and my family extremely fortunate that we were able to…
Also reported on the 2003 Chevrolet Avalanche
Instrument cluster or gauge failure
Other brake problem
Brake line, hose or caliper failure
Other electrical problem
Other speed control problem
Other body or interior problem
How far this goes
Complaints are voluntary, so 24 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 loss of braking happen on the 2003 Chevrolet Avalanche?
Across 23 owner reports that included an odometer reading, half were filed by 110,000 miles. A quarter were filed before 65,000 miles and a quarter after 150,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is loss of braking on the 2003 Chevrolet Avalanche?
24 reports have been filed with NHTSA, about 0.2 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