In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the front brake on 2019-24 model year Ascent models to 8 years (96 months) or 150,000 miles (whichever comes first) to address cases of front brake pulsation or squealing.
full bulletin at NHTSA ↗2020 Subaru Ascent brakes problems
severe Owners of the 2020 Subaru Ascent have filed 18 NHTSA complaints about the brakes at roughly $450 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See brakes across all vehicles →
Complaints
18
Recalls
0
Avg fix
$450
| Model year | brakes complaints |
|---|---|
| 2019 Ascent | 17 |
| 2020 Ascent (this page) | 18 |
| 2021 Ascent | 8 |
| 2022 Ascent | 9 |
| 2023 Ascent | 6 |
1crash
When does it fail?
Of the 18 brakes complaints filed for the 2020 Subaru Ascent, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Of the 5 model years of Subaru Ascent we track for brakes problems, this one carries the most owner complaints on file — 18.
No new NHTSA brakes complaint has been filed on this vehicle in over 5 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering brakes on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the front brake on 2019-24 model year Ascent models to 8 years (96 months) or 150,000 miles (whichever comes first) to address cases of front brake pulsation or squealing.
full bulletin at NHTSA ↗In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the front brake on 2019-24 model year Ascent models to 8 years (96 months) or 150,000 miles (whichever comes first) to address cases of front brake pulsation or squealing.
full bulletin at NHTSA ↗In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the front brake on 2019-24 model year Ascent models to 8 years (96 months) or 150,000 miles (whichever comes first) to address cases of front brake pulsation or squealing.
full bulletin at NHTSA ↗In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the front brake on 2019-24 model year Ascent models to 8 years (96 months) or 150,000 miles (whichever comes first) to address cases of front brake pulsation or squealing.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2020 Ascent brake system fails prematurely and consistently across this complaint set. Front rotors warp as early as 6,700 miles, causing shuddering, grinding, and vibration through the steering wheel that intensifies at highway speeds and downhill. Owners report being on their third or fourth rotor set before 50,000 miles—unusual for a vehicle under five years old.
Subaru dealership service managers acknowledge the problem directly: rotors and calipers are undersized for the vehicle's curb weight. One owner was told this is "normal Subaru Ascent behavior." Dealers typically resurface rotors and replace pads, but the fix is temporary. By 36,000 to 49,000 miles, vibration and grinding return, and once warranty coverage ends, owners face $600+ repair bills repeatedly.
One dealer offered a $600 coupon after reviewing the issue at "the highest levels," effectively telling the owner their only choice is annual brake work. A service bulletin exists (MC-10179409-0001), and there's mention of a brake pad design update, but not all dealers offer it.
One owner also reported a caliper bolt missing entirely after third-party brake service, creating a serious safety hazard on a winter highway drive. A separate complaint mentions the emergency brake engaging unexpectedly while driving, though the scope of this issue is unclear.
Same Subaru Ascent brakes reports on nearby years: 2019
Failure modes owners describe
Warped rotors with vibration and grinding
Front brake rotors warp prematurely, causing shaking, vibration, grinding noises, and pulsing sensations when braking. Vibration often felt through steering wheel. Occurs repeatedly even after resurfacing or replacement.
When: Reported from 6,700 to 49,000 miles; earliest instances around 8,000–19,000 miles
Symptoms owners cite: shuddering when braking; vibration in steering wheel; grinding noise; pulsing sensation; front of vehicle shakes; excessive vibration affecting steering control; growling noise
Repairs/costs cited: Dealers resurfaced rotors and replaced pads multiple times; one owner spent $610 out of pocket at 49k miles for rotors and pads after warranty expired. Another owner on 4th set of rotors and 2nd set of pads by 40k miles. Resurfacing rotor reduces thickness, making warping more likely per owner concern.
Recalls/TSBs owners mention: Subaru service managers informed owners the issue is common and that rotors/calipers are undersized for vehicle weight. Subaru offered one owner a $600 coupon and stated the issue was reviewed at 'highest levels' with no other recourse. Service bulletin cited (MC-10179409-0001). Subaru policy is to resurface rather than replace; brake pad design update available but not offered by some dealers.
Insufficient stopping power
Braking system lacks adequate stopping power for vehicle weight, especially downhill or at highway speeds. Owners report difficulty stopping and unsafe braking performance.
When: From early ownership through higher mileages
Symptoms owners cite: difficulty stopping downhill over 50 mph; hesitant stopping abilities; inadequate stopping power; hard to stop; shaking during high-speed braking
Repairs/costs cited: No repairs noted to address undersizing; brake replacements focus on rotors and pads, not system redesign.
Recalls/TSBs owners mention: Subaru acknowledged rotors and calipers are undersized for curb weight per service managers. One owner told only recourse is annual brake and rotor replacement at dealership.
Rapid brake pad and rotor wear
Brake pads and rotors deteriorate quickly, requiring multiple replacement cycles within short intervals and mileage. Pattern suggests design or manufacturing defect rather than normal wear.
When: Multiple cycles reported; one owner on 3rd set rotors and 2nd set pads by 40k miles; another on 2nd rotor/pad set by 36k miles
Symptoms owners cite: rapid brake wear; grinding; vibration; deteriorating brakes
Repairs/costs cited: Owners report thousands of dollars spent on premature replacements. One owner declined pad change at 40k service but still needed them shortly after.
Recalls/TSBs owners mention: Subaru acknowledges issue is common; service managers confirm it as known design problem. No redesign or extended warranty offered beyond initial coverage.
Caliper bolt assembly failure (service-related)
Brake caliper bolt improperly installed or not secured during service, creating serious safety hazard. One bolt missing entirely, second dangerously loose after brake replacement at third-party shop (Monro Auto Service).
When: December 2025, shortly after brake service
Symptoms owners cite: loud banging noise from brakes; unsafe brake assembly
Repairs/costs cited: Second technician secured loose bolt and confirmed vehicle safe. Original service location failed to resolve issue after four months. Monro filed insurance claim for rim damage, implicitly admitting negligence.
Emergency brake unintended activation
Emergency brake button occasionally engages without driver action. Button appears stuck when attempting to disengage. Occurred multiple times, including while driving.
When: Timing not specified
Symptoms owners cite: emergency brake comes on unexpectedly; button appears stuck; no obstruction present
Repairs/costs cited: No repair noted; owner noted similar complaints in Subaru forums.
Synthesized from 18 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
Tl* the contact owns a 2020 Subaru ascent. The contact stated that during a countrywide road trip at 70 MPH the vehicle shook and shimmied when he applied the brake going downhill on a steep grade. The vehicle was taken to the dealer groove Subaru (5300 s. Broadway, englewood, co 80113, (720) 279-9409). The tires were rotated and the contact was advised to seek a comprehensive diagnostic test by…
At around 18,000 miles when applying the brakes, the vehicle would shake and vibrate. By 20,000 miles the vibration was excessive affecting the ability to steer straight when braking. The dealer told me that they were aware of the issue with this year/model. Diagnosis, warped rotors. Dealer resurfaced rotors and replaced pads under warranty. Vehicle performed fine for a while. At around 36000…
Had brakes trouble with your 2020 Subaru Ascent?
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 2020 Subaru Ascent?
It's a meaningful issue. 18 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $450.
At what mileage does the brakes typically fail?
Based on the 18 complaints filed, brakes issues most often appear around 9,200 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
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/2020/Subaru/Ascent.
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.