When the check engine light is illuminated for any reason, it could be as simple as the gas cap isn't tight. It is designed to disable the cruise control, disable the traction control and what I feel is a safety factor, it disables the electronic hill holder. Being this is a manual transmission vehicle it has an electric parking brake. When the hill holder is activated, if you stop on a steep…
2011 Subaru Outback brakes problems
severe 53 complaints filed with NHTSA · avg repair $450 · see brakes across all vehicles →
Failure mileage
Complaints
53
Recalls
0
Avg fix
$450
5crashes
What stands out
Of the 18 model years of Subaru Outback we track for brakes problems, this one carries the most owner complaints on file — 53.
Owners have filed 53 brakes complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
The failure pattern owners describe
Buyer takeaway: The 2011 Outback has widespread and serious brake issues: intermittent master cylinder failures causing complete loss of braking power, rear brake line corrosion that corrodes despite protective coatings, and electronic parking brake failures that don't engage or won't release. Buyers should avoid this model year or have a pre-purchase inspection by an independent mechanic specifically checking brake lines and master cylinder function, as Subaru has excluded the 2011 from several related recalls.
The 2011 Subaru Outback brake system generates dozens of complaints centered on three categories of failure. First, owners report complete or near-complete loss of braking power without warning—brake pedal goes to the floor, vehicle loses all stopping ability, and the problem resolves itself intermittently before any dealer can diagnose it. A Subaru dealer recalled 2012 models for master cylinder defects (Recall 11V562000), but Subaru explicitly excluded the 2011. One owner had the master cylinder replaced with OEM parts and a full system flush, yet the failure recurred three more times.
Second, rear brake lines corrode and leak, especially at the 4-way junction block under the fuel tank shield where protective coatings are compromised. Owners in salt-spray climates report complete brake failure from fluid loss. A similar recall (WQK-47) covers 2005–2009 Outbacks and other models, but again excludes the 2011 despite identical part design and failure mode. Dealers report no replacement parts available in North America.
Third, the electronic parking brake frequently fails to engage or becomes locked and won't release. The brake light flashes and the system beeps but does nothing. On manual transmissions, if the check engine light is on, the hill holder disengages entirely, leaving only a parking brake that cannot function as an emergency brake.
Owners report these failures at all mileage points, from early ownership to 100,000+ miles, creating a persistent and unpredictable safety hazard.
Same Subaru Outback brakes reports on nearby years: 2008 · 2010 · 2012 · 2013 · 2014
Failure modes owners describe
Master Cylinder Failure — Loss of Brake Pressure
Brake pedal travels to the floor without warning, vehicle loses braking power, pedal feels soft or mushy. Occurs intermittently, sometimes resolving on its own before dealer inspection. Reported occurring multiple times per vehicle, sometimes even after OEM master cylinder replacement.
When: Variable; some reports from early in ownership (6,800 miles), others at higher mileage (103,500+). Typically occurs while driving at city and highway speeds.
Symptoms owners cite: Brake pedal goes to floor or near floor without warning; Complete or near-complete loss of braking power; Soft or mushy brake feel; Excessive brake pedal travel; Problem resolves intermittently before technician can observe; Brake warning light may or may not illuminate
Repairs/costs cited: OEM master cylinder replacement (part 26401AJ001) plus full system flush and fluid refill. One owner reported continued failure even after replacement.
Recalls/TSBs owners mention: Recall 11V562000 for 2012 model only (service brakes, hydraulic). Some dealers state recall does not apply to 2011 model year. Subaru USA reportedly stated nothing could be done.
Rear Brake Line Corrosion and Leakage
Brake lines, particularly in the rear junction block/4-way connector area under the fuel tank shield, corrode and leak brake fluid. Corrosion occurs where protective coating is absent or compromised, allowing salt spray and moisture to cause rust. Fluid loss leads to empty reservoir and complete brake failure.
When: Corrosion and failure reported at various mileages and ages. One vehicle at 8 years old, another with 127,000 miles. Failures observed in climates with winter road salt.
Symptoms owners cite: Brake pedal goes to floor; Loss of braking power or severely reduced braking; Brake fluid leak underneath vehicle; Empty or low brake fluid reservoir; Brake warning light illumination; Brake lines corroded at junction block or rear area
Repairs/costs cited: Brake line replacement required. One dealer reported no replacement parts available in North America and had to custom-fabricate line. Labor intensive due to routing under rear seat and fuel tank shield.
Recalls/TSBs owners mention: Recall WQK-47 applies to 2005–2009 Outbacks and some other models. 2011 Outback not included despite same part design and failure mode. Owners report Subaru customer service states nothing can be done because vehicle is not listed in recall.
Electronic Parking Brake (EPB) Malfunction — Failure to Engage or Release
Electronic parking brake fails to engage when button is pressed, or becomes locked and will not release. Dash brake light blinks or flashes continuously. System either unresponsive or requires manual intervention to disengage. Creates risk of vehicle rollaway on inclines, particularly problematic on manual transmission models where hill holder is disabled if check engine light is active.
When: Intermittent; occurs on multiple occasions over vehicle's life. No specific mileage threshold noted.
Symptoms owners cite: Parking brake button press results only in chirp/beep with no brake engagement; Brake light on dash flashes or blinks; Parking brake engages but will not disengage; System becomes unresponsive 70% of the time or more; No mechanical engagement of brake
Codes mentioned: Multiple DTCs associated with EPB system (specific codes not detailed in narratives)
Repairs/costs cited: Electronic parking brake actuator/module replacement required. One quote cited over $1,300 for repair; part cost alone approximately $850 (Subaru part 26002AJ01E). Manual decoupling with special tool required in some cases.
Recalls/TSBs owners mention: Recall 18V626000 (WTV-81) applies only to manual transmission vehicles. Automatic transmission vehicles excluded despite having same component. One owner reported recall issued in Oct. 2018 with note that remedy parts not yet available; as of March 2019 remedy still not found. Australia recalled this brake for 2015 Outback.
Brake System Loss Upon ABS Activation or Road Irregularities
Brake pedal becomes soft and travels toward floor immediately after ABS activates or when driving over potholes/rough road surfaces. Increased stopping distance results. Problem often resolves itself before dealer inspection, making diagnosis difficult.
When: Intermittent; triggered by ABS activation events or road imperfections. One incident during highway on-ramp entry; others during city driving.
Symptoms owners cite: Brake pedal becomes very soft; Pedal travel increases significantly; Reduced braking effectiveness; Problem triggered by ABS activation or road bumps; Issue resolves before technician can verify; Occurs over multiple months or years
Repairs/costs cited: Brake system flush and master cylinder replacement (noted as recall item in other models) performed as precaution. Problem persisted after repairs in at least one case.
Recalls/TSBs owners mention: Dealer performed brake system flush and master cylinder replacement as goodwill (referencing recall issue in other models). Subsequent recurrence left owner with no further options.
Brake Pedal Position and Ergonomic Design Issues
Brake pedal position relative to accelerator pedal is too close, creating risk of pedal confusion. Brake pedal height changes when engine is started, sinking closer to accelerator operating plane. Distance between pedal edges approximately three inches, while size 12 shoe sole approximately 4.5 inches wide.
When: Evident upon inspection; unintended acceleration episodes reported shortly after vehicle purchase.
Symptoms owners cite: Brake pedal gets too close to floorboard; Brake pedal closer to accelerator when engine is running; Risk of foot/shoe contacting both brake and accelerator; Brake power assist amplifies applied force inconsistently
Repairs/costs cited: None; owner identified as design issue rather than mechanical failure. Brake pedal cover removal revealed bare steel plate.
Recalls/TSBs owners mention: None reported.
Brake Pedal Hard Clicking Noise Upon Release
Brake pedal produces clicking noise when released. Dealer confirmed this occurs on 2010 models and also 2011 models, but states it is not a recall issue and there is nothing that can be done until/unless Subaru issues a recall.
When: Intermittent; occurs during normal brake operation.
Symptoms owners cite: Clicking noise when releasing brake pedal
Repairs/costs cited: None available per dealer.
Recalls/TSBs owners mention: Dealer aware issue affects 2010 and 2011 models but no recall issued. No remedy available until recall is issued.
Brake System Seizure at Highway Speed
Brakes seize unexpectedly at highway speed, causing vehicle to slow and stop suddenly. Check engine and brake warning lights blink during event. Brakes remain locked for an hour before unlocking and allowing vehicle to be towed.
When: At 70 mph on Interstate 65.
Symptoms owners cite: Sudden vehicle slowdown at highway speed; Check engine light blinking; Brake warning light blinking; Complete brake lock-up; brakes will not release; Vehicle immobilized for approximately one hour
Repairs/costs cited: Diagnostic test showed 'braking event' but no current problem found. Vehicle test-driven 50 miles with no recurrence.
Recalls/TSBs owners mention: None identified.
Rapid Rear Brake Pad and Rotor Wear
Rear brakes and rotors wear out prematurely. Original set lasted approximately 31,000 miles (replaced 2015). Second set wore out in just 19,000 miles (by 2019), requiring replacement again.
When: First failure approximately 31,000 miles (2011–2015); second failure at 50,000 miles total (2011–2019).
Symptoms owners cite: Brake pedal travel lower than normal; Increased stopping distance; Brake pedal goes to floor faster than normal
Repairs/costs cited: Rear brake pad and rotor replacement required. Cost not specified.
Recalls/TSBs owners mention: None reported.
Electronic Parking Brake Module Failure
Electronic parking brake control module fails, preventing brake actuation. Dash warning light flashes. Brake may fail to engage while vehicle is parked on incline.
When: Multiple instances; one reported in July (year not specified).
Symptoms owners cite: Parking brake will not actuate; Brake light flashes on dash; Delayed release after prolonged engagement (approximately 15 minutes); Potential hazard if failure occurs while vehicle is in motion
Repairs/costs cited: Electronic parking control module replacement required.
Recalls/TSBs owners mention: None reported.
Hill Holder Disablement When Check Engine Light is Active
On manual transmission vehicles, the electronic hill holder assist is disabled whenever the check engine light (CEL) is illuminated, regardless of CEL cause. This creates rollback hazard on inclines. Additionally, the electronic parking brake cannot function as an emergency brake because it only engages when vehicle is stationary and cannot be activated while vehicle is moving.
When: Any time check engine light is illuminated.
Symptoms owners cite: Hill holder disengaged when CEL is illuminated; Vehicle rolls backward on inclines at traffic lights or stops; Electronic parking brake cannot be activated while moving; No functional emergency brake option if service brakes fail
Repairs/costs cited: Design flaw; no mechanical fix available. CEL must be cleared to re-enable hill holder.
Recalls/TSBs owners mention: None reported.
Synthesized from 53 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Had brakes trouble with your 2011 Subaru Outback?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the brakes problem on the 2011 Subaru Outback?
It's a meaningful issue. 53 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $450.
At what mileage does the brakes typically fail?
Across the 28 complaints that reported odometer mileage, most brakes failures cluster between 46,700 and 102,128 miles, with the median around 71,440. A quarter of owners report trouble before 46,700; a quarter make it past 102,128. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $450 for brakes repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to brakes?
No active recalls currently cover brakes issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2011/Subaru/Outback.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.