Master cylinder or brake booster failure on the 2014 Dodge Durango
When master cylinder or brake booster failure gets reported
Owners of the 2014 Dodge Durango report master cylinder or brake booster failure at a median of 100,000 miles. A quarter of the reports come in before 30,000 miles and a quarter after 105,000 miles, from 8 reports that carried an odometer reading.
A part like this is normally expected to survive 92,000 miles. It is the 24th most-reported problem on this model year.
The mileage distribution
The reported range runs from 25,000 miles at the tenth percentile to 105,000 miles at the ninetieth, a spread of 79,480 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.
38% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 24,450 miles | 31,523 miles | 97,950 miles | 103,900 miles | 103,930 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 $450–$2,200 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 7 model years of this car. It shows up earliest on the 2013, at a median of 15,000 miles, and latest on the 2004 at 140,000 miles.
By volume the 1999 carries the most reports, with 16; the 2014 has 8. 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.
I received a recall from chrysler on the brake booster possible failure several months ago. When I called my dealer, diehl chrysler in butler pa I was informed they did not have the part for the repair and as of this date still have not received the repair parts from chrysler. I received a second recall last week for sun visor wiring and once again I was informed by the same dealer they have not received the parts. *tr
My brake pedal is hard after sitting for a couple of days. After starting it goes back down. I brought it to the dealer and the found a small vacuum leak from the brake booster and they said it was an acceptable leak. Is this true? Or should there be no vacuum leak at all? I want to make sure my car is safe. Please let me know if I should bring it back to dealer and have them replace the brake booster. Thanks
My car presented a safety related defect recently. I was driving in a city street taking my kids to school when a sign of service brakes appeared in the screen. The brakes stooped working properly and I almost had an accident putting my entire family in a very unsafe condition. When I took it to the kendall dodge dealer they told me that the car had hydraulic power assist problem or brake booster faulty. I paid the repair out of my pocket. Later, I found out that chrysler had a recall in 11/2017 for the same problem I had hydraulic: power assist, recall number t-59. I need to include my car in the list of the cars affected by this issue. When I called chrysler they told to reported it to you so my car can be included in the recall list because at this time it is not included it in. I really need your help because due to the limiting breaking ability of my car my entire family was exposed to a very dangerous situation.
Also reported on the 2014 Dodge Durango
Other body or interior problem
Other lighting problem
Tail light, brake light or signal failure
Other electrical problem
Seat belt or retractor failure
Liftgate, tailgate or trunk failure
How far this goes
Complaints are voluntary, so 8 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 master cylinder or brake booster failure happen on the 2014 Dodge Durango?
Across 8 owner reports that included an odometer reading, half were filed by 100,000 miles. A quarter were filed before 30,000 miles and a quarter after 105,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is master cylinder or brake booster failure on the 2014 Dodge Durango?
8 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