2011 Toyota Prius Service Brakes Problems

Source: NHTSA · Updated Oct 1, 2026 · 264 complaints analyzed

Owners have filed 264 complaints with NHTSA about service brakes problems on the 2011 Toyota Prius, 51% of all complaints for this model year. Half of the reports with a mileage happened before 80,000 miles. The words owners use most often: “brake booster” (27% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Brake booster: mentioned in 72 of 264 complaints (27%)
  • Traction control: mentioned in 43 of 264 complaints (16%)
  • Support program: mentioned in 19 of 264 complaints (7%)
  • Code C1391: mentioned in 15 of 264 complaints (6%)

How much does it cost to fix?

Owners who wrote down what they paid or were quoted put the typical service brakes repair on the 2011 Toyota Prius at $3,500, and half of them between $3,050 and $4,050.

Based on 34 NHTSA complaints about this problem alone that state a repair bill or quote (2013–2026), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.

At what mileage do service brakes problems happen?

Based on 139 complaints that reported the odometer reading.

Under 10k miles18 · 13%
10k–25k miles11 · 8%
25k–50k miles21 · 15%
50k–75k miles12 · 9%
75k–100k miles20 · 14%
100k–150k miles37 · 27%
150k+ miles20 · 14%

How serious are the reports?

Of 264 complaints, 17 mention a crash, 3 an injury.

Toyota Prius service brakes complaints by model year

Peak: 2010, with 593 complaints
2001: 520012002: 42003: 520032004: 212005: 8220052006: 732007: 12720072008: 1452009: 6320092010: 5935932011: 26420112012: 1842013: 23120132014: 942015: 8920152016: 182017: 1420172018: 32019: 920192020: 42021: 120212022: 42023: 220232024: 22025: 22025

n = 2,039 complaints · Source: NHTSA

Model yearService Brakes complaintsShare of that yearMedian miles
2025 Prius213%—
2024 Prius27%3,000
2023 Prius210%—
2022 Prius417%10,000
2021 Prius117%—
2020 Prius429%8,185
2019 Prius930%3,498
2018 Prius38%4,500
2017 Prius1415%14,932
2016 Prius1812%7,193
2015 Prius8954%35,000
2014 Prius9445%21,000
2013 Prius23156%83,500
2012 Prius18443%77,000
2011 Prius26451%80,000
2010 Prius59321%93,000
2009 Prius6313%130,000
2008 Prius14510%129,325
2007 Prius1276%123,377
2006 Prius735%139,500
2005 Prius828%135,626
2004 Prius213%138,000
2003 Prius55%117,689
2002 Prius42%30,000
2001 Prius53%125,225

When owners reported it

Peak: 2019, with 32 complaints
2012: 7201272013: 17172014: 142014142015: 13132016: 112016112017: 332018: 252018252019: 32322020: 132020132021: 20202022: 272022272023: 24242024: 252024252025: 18182026: 15202615

n = 264 complaints · Source: NHTSA

Related recalls (0)

No safety recall lists service brakes for the 2011 Toyota Prius. A pattern of complaints does not always lead to a recall.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

I was driving on the highway when my 2011 Toyota Prius started beeping repeatedly, and as I approached the red light, my brakes were not operational. My car completely passed through the red light, narrowly missing what could have been a fatal accident for me and others on the road. I had to…

Received Oct 1, 2026 · NHTSA complaint 11768253

2011 Toyota Prius with approximately 134,000 miles. The brake actuator/master cylinder has been diagnosed as malfunctioning and failing to maintain hydraulic pressure. The brake booster pump initially began cycling approximately every 10 seconds while the vehicle was in READY mode, stationary, and…

Received Sep 30, 2026 · NHTSA complaint 11768168

I am filing this complaint to report an active, severe safety defect involving a sudden, un-warned loss of power braking assist due to a failing factory brake actuator/booster pump assembly. My vehicle is exhibiting the exact internal hydraulic seal failure, pressure drop, and audible…

Received Sep 14, 2026 · NHTSA complaint 11764198
Toyota Prius
2023 Toyota Prius Z HEV. Representative photo; appearance varies by model year. Photo: TTTNIS, CC0, via Wikimedia Commons.

Frequently asked questions

Do all 2011 Toyota Priuss have service brakes problems?

No. NHTSA has 264 owner complaints about service brakes for the 2011 Toyota Prius (51% of the 521 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the 2011 Toyota Prius service brakes?

No recall currently lists service brakes for this vehicle.

At what mileage do service brakes problems start?

The median reported mileage is 80,000 miles: half of the reports with a mileage came before that.

How much does it cost to fix service brakes problems on the 2011 Toyota Prius?

Owners report a typical cost of $3,500 (half paid between $3,050 and $4,050), from 34 complaints that state a repair bill or quote, in 2026 dollars.

What do owners say about service brakes problems on the 2011 Toyota Prius?

The most frequent phrase is “brake booster”, in 72 of 264 complaints, followed by “traction control” (43).

Other 2011 Toyota Prius problems

See all 2011 Toyota Prius problems or service brakes problems across all Prius years.