Master cylinder or brake booster failure on the 2012 Dodge Durango
1 crash 1 of the 13 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.
Only 7 reports for this mode came with an odometer reading, which is too few for percentiles to mean anything. The page is here because someone linked to it; treat the figures as anecdotes, and see the full report for this year instead.
When master cylinder or brake booster failure gets reported
There are 13 reports of master cylinder or brake booster failure on the 2012 Dodge Durango, 7 with a mileage attached. That is too few to place the failure on the odometer with any confidence.
A part like this is normally expected to survive 92,000 miles. It is the 12th most-reported problem on this model year.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| — | — | 40,000 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
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 $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 2012 has 13. 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.
Driving in freezing weather at approximately 35-40 MPH. I went to brake, & brakes felt hard, pedal would not depress completely, & coming to s stop was difficult & took more time than usual. Took car to auto shop nearby & they diagnosed with failed brake booster. Had car towed to chrysler dealer as it was dangerous to drive due to the loss of brake power, in which it remained there for 3 weeks due to booster part "being on back order". Since this booster was on back order, I asked chrysler if this has been a common problem with durangos & was told no. They told me that since my vehicle was over the warranty in mileage (approx 40,000), the repair was not covered, however, they gave me discount. I've read the reports & letters issued relating to this recall in which they stated there is "no loss in braking" however, this was untrue in my case. Had I been driving on highway when this occurred, I would have been in trouble with braking, as there was a definite decrease in braking by approximately 50%. I called chrysler regarding reimbursement for this recall, & chrysler will not issue a refund on what I paid to have brake booster…
There has not been an incident yet - my issue is: there has been a recall for the brake booster but the dealer is telling me that dodge is not sending the parts needed to fix the problem.apparently the brakes could possibly freeze and fail. I called the dealer 7/1/2014 and was "put on the list" for the part to be replaced. I called today, 8/1/2014, and was told I was on the list but there was almost 50 others in front of me and that dodge was only sending 2 or 3 parts a month and had restricted the part so it couldn't be ordered. At this rate, it will be the end of the year before my car is fixed. Although it is aug. Now, it will get cold soon and I have 3 children that I chauffeur around. I would hate for one of them to be injured because the brakes fail and would also hate to file a lawsuit over a known issue that dodge seems to be dragging their feet over. Is there anyway to expedite the process so the car can be fixed before winter? *tr
No incident occurred. I have been waiting for eddy's chrysler dodge jeep ram in wichita, ks to replace a brake booster since july. I was placed on a list. I called them again in october and they said they were still waiting on parts. I am concerned about my family's safety. The weather is now cold and that is when this defect has caused accidents. What should I do? *tr
Also reported on the 2012 Dodge Durango
Other electrical problem
Alternator or charging system failure
Fuel pump failure
No-start or intermittent start failure
Other engine problem
Other brake problem
How far this goes
This page is kept out of search results because 13 reports is not enough to publish percentiles from. It stays reachable because somebody looking at this exact car would rather see the reports than be told there are none.
Complaints are voluntary, so 13 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 2012 Dodge Durango?
Across 7 owner reports that included an odometer reading, half were filed by 40,000 miles. A quarter were filed before — and a quarter after —. 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 2012 Dodge Durango?
13 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