Parking brake failure on the 2010 Subaru Outback
1 crash 2 fires 3 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.
When parking brake failure gets reported
Owners of the 2010 Subaru Outback report parking brake failure at a median of 85,000 miles. A quarter of the reports come in before 75,000 miles and a quarter after 150,000 miles, from 13 reports that carried an odometer reading.
A part like this is normally expected to survive 88,000 miles. It is the 9th most-reported problem on this model year.
The mileage distribution
The reported range runs from 45,000 miles at the tenth percentile to 150,000 miles at the ninetieth, a spread of 102,815 miles across the middle 80% of reports.
When the reports scatter this far, the mileage is telling you about how these cars were driven more than about the part itself.
8% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 47,185 miles | 74,500 miles | 85,000 miles | 150,000 miles | 150,000 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 and 2 a fire are 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 12 model years of this car. It shows up earliest on the 2020, at a median of 500 miles, and latest on the 2010 at 85,000 miles.
By volume the 2011 carries the most reports, with 24; the 2010 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.
I heard a grinding sound and checked the rear brakes. Pad and rotors were wearing metal on metal. Checked front brakes and they were fine. Called dealer as to what might be wrong was told I must have driven the vehicle with parking brake on. I asked if there were problems with the parking brake system as I have never heard of the back brakes wearing out before the front especially with approximately 40k mile open country miles. I was told by the service staff member they have never encountered this before . Up on googling the problem I found that 2010 outbacks were having similar issues. I want to add mine to the data base. I am concerned that the brakes possibly activating while moving or not releasing as designed. *tr
Tl* the contact owns a 2010 subaru outback. While driving at an unknown speed, the parking brake warning light illuminated and flashed. The dealer stated that the parking brake actuator was faulty. After leaving the dealer, the parking brake engaged inadvertently while driving 5 MPH. The failure caused the vehicle to come to a stop. The vehicle was not repaired and the manufacturer was not notified. The failure mileage was 20,000.
The vehicle was in neutral, engine running with parking brake set (electronic parking brake in the 2010), the mechanic got out of the car on the level crushed gravel parking lot in the middle of a beautiful sunny afternoon and allowed myself to get in the drivers seat. I have never been able to disengage the parking brake without it flashing non stop unless I turned the car off and restarted it, then disengage the parking brake. On this specific day, I got into my vehicle attempted to disengage the parking brake it still was set with light on. I turned off the vehicle, restarted it and disengaged the parking brake and it immediately started flashing. The brake was disengaged; however, the light remained on. Returned it to my mechanic and he stated that he was not familiar with the electronic parking brake however, it was not working at all nor would it would work. You could hear the little motor running but nothing would happen. I brought my vehicle up to a subaru dealership in hopes that they would stand behind a poorly designed piece of equipment on their product which as a consumer should have lasted more than 7 years. I was…
Also reported on the 2010 Subaru Outback
Other steering problem
Other powertrain problem
CVT failure
Other engine problem
Headlight failure or clouding
Torque converter failure
How far this goes
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 parking brake failure happen on the 2010 Subaru Outback?
Across 13 owner reports that included an odometer reading, half were filed by 85,000 miles. A quarter were filed before 75,000 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 parking brake failure on the 2010 Subaru Outback?
13 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