2009 Toyota Prius Vehicle Speed Control Problems

Source: NHTSA · Updated Jun 17, 2026 · 71 complaints analyzed

Owners have filed 71 complaints with NHTSA about vehicle speed control problems on the 2009 Toyota Prius, 14% of all complaints for this model year. Half of the reports with a mileage happened before 10,000 miles. The words owners use most often: “foot brake” (17% of reports).

What owners describe

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

  • Foot brake: mentioned in 12 of 71 complaints (17%)
  • Suddenly accelerated: mentioned in 6 of 71 complaints (8%)
  • Floor mat: mentioned in 5 of 71 complaints (7%)
  • Unintended acceleration: mentioned in 5 of 71 complaints (7%)

At what mileage do vehicle speed control problems happen?

Based on 59 complaints that reported the odometer reading.

Under 10k miles26 · 44%
10k–25k miles20 · 34%
25k–50k miles7 · 12%
50k–75k miles0 · 0%
75k–100k miles5 · 8%
100k–150k miles0 · 0%
150k+ miles1 · 2%

How serious are the reports?

Of 71 complaints, 26 mention a crash, 10 an injury.

Toyota Prius vehicle speed control complaints by model year

Peak: 2010, with 287 complaints
2001: 2520012002: 122003: 520032004: 522005: 10920052006: 842007: 12420072008: 1562009: 7120092010: 2872872011: 2820112012: 132013: 2220132014: 142015: 720152016: 142017: 1320172018: 42019: 420192020: 12021: 120212022: 12024: 220242025: 1

n = 1,050 complaints · Source: NHTSA

Model yearVehicle Speed Control complaintsShare of that yearMedian miles
2025 Prius16%—
2024 Prius27%3,000
2022 Prius14%25,000
2021 Prius117%56,000
2020 Prius17%15,670
2019 Prius413%1,495
2018 Prius411%7,500
2017 Prius1314%14,000
2016 Prius149%13,250
2015 Prius74%3,000
2014 Prius147%11,687
2013 Prius225%9,750
2012 Prius133%21,000
2011 Prius285%21,000
2010 Prius28710%4,300
2009 Prius7114%10,000
2008 Prius15610%28,500
2007 Prius1246%36,600
2006 Prius846%45,000
2005 Prius10910%50,000
2004 Prius529%59,384
2003 Prius55%41,873
2002 Prius127%42,240
2001 Prius2515%60,189

When owners reported it

Peak: 2010, with 49 complaints
2009: 7200972010: 492010492011: 2201122012: 1201212013: 2201322014: 2201422015: 2201522016: 1201612018: 3201832021: 1202112025: 120251

n = 71 complaints · Source: NHTSA

Related recalls (1)

Vehicle speed control:accelerator pedalOct 5, 2009 · NHTSA campaign 09V388000 · 4,445,056 vehicles

Problem: Toyota is recalling certain model year 2004-2010 passenger vehicles. The accelerator pedal can get stuck in the wide open position due to its being trapped by an unsecured or incompatible driver's floor mat.

Risk: A stuck open accelerator pedal may result in very high vehicle speeds and make it difficult to stop the vehicle, which could cause a crash, serious injury or death.

Fix: Toyota filed an amended defect report on november 25, 2009, stating that dealers will modify the accelerator pedal and, on certain vehicles, alter the shape of the floor surface under the pedal. These changes address the risk of pedal entrapment due to interference with the floor mat. Redesigned accelerator pedals will become available beginning in april 2010 and dealers will replace any modified pedal with the new pedal if desired. Also, dealers will replace any genuine toyota or lexus all-weather floor mats with redesigned all-weather mats, or repurchase the previous mats from owners who do not want the new ones. Additionally, software modifications will be installed on camry, avalon and lexus es 350, is 350 and is 250 models that will ensure that the brake overrides the accelerator in the event both brake and accelerator pedals are applied. Toyota will begin mailing letters to owners on december 31, 2009. Owners may contact toyota at 1-800-331-4331, lexus at 1-800-255-3987.

What owners report

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

When I am coming to a stop or need to put on my brakes my car will accelerate at a jump ahead pace As if to take off instead of slowing down and stopping. Regardless whether I’m turning a corner or I’m continuing straight when I have to Put on the brakes it speeds up instead.

Received Mar 12, 2025 · NHTSA complaint 11647997

I went to park in a parallel space when all of a sudden my ABS, (!), VSC light come on with the loss of brake power and a loud beeping noise. With this sudden loss of brakes in the middle of driving, I could have harmed myself and others in any cars around me because I also lost steering…

Received Aug 12, 2021 · NHTSA complaint 11428897

My prius now has all those dash lights on: !, abs, vcs. I was driving yesterday, on a city street and the lights came on, and the brakes suddenly did not work-hard to push. For months, when i would drive over rough terrain, i had the loss of braking, accelerating, and the slick road icon would…

Received Dec 30, 2018 · NHTSA complaint 11164066
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 2009 Toyota Priuss have vehicle speed control problems?

No. NHTSA has 71 owner complaints about vehicle speed control for the 2009 Toyota Prius (14% of the 502 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 2009 Toyota Prius vehicle speed control?

Yes: 1 safety recall list vehicle speed control. Check your VIN on NHTSA.gov to see whether the fix was done on your car.

At what mileage do vehicle speed control problems start?

The median reported mileage is 10,000 miles: half of the reports with a mileage came before that.

What do owners say about vehicle speed control problems on the 2009 Toyota Prius?

The most frequent phrase is “foot brake”, in 12 of 71 complaints, followed by “suddenly accelerated” (6).

Other 2009 Toyota Prius problems

See all 2009 Toyota Prius problems or vehicle speed control problems across all Prius years.