2011 Toyota Prius problems, complaints & recalls
Most-reported problem areas: Service Brakes (239) · Exterior Lighting (46) · Air Bags (33)
🧭 Reliability snapshot
Compared against other Toyota Prius model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
329 NHTSA complaints that reported an odometer reading.
Safety recalls (6)
Hybrid Propulsion System 2018-10-04 · campaign 18V684000 · 807,329 vehicles
Defect: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2010-2014 Toyota Prius and 2012-2014 Toyota Prius V vehicles. Excessive voltage in the Intelligent Power Module (IPM) within the inverter may cause the hybrid system to shut down, causing the vehicle to stall while being driven.
Risk: If the hybrid system shuts down unexpectedly, it can increase the risk of a crash.
Fix: Toyota will notify owners, and dealers will update the software for the motor/generator control electronic control unit (ECU) and the hybrid control ECU as necessary, free of charge. The recall began January 22, 2019. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is J0V. Note: The software updates in this recall are needed even if the vehicle had the software previously updated under recalls 14V-053 or 15V-449.
Air Bags:side/Window 2016-06-30 · campaign 16V487000 · 482,002 vehicles
Defect: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2010-2012 Toyota Prius, 2010 and 2012 Toyota Prius Plug-in Hybrid, and 2011-2012 Lexus CT200h vehicles. A weld in the curtain shield air bag inflator may crack causing one or both portions of the inflator to eject into the passenger cabin.
Risk: If either portion of the curtain shield air bag inflator ejects into the passenger cabin, there is an increased risk of injury to vehicle occupants.
Fix: Toyota will notify owners, and dealers will install retention brackets to the curtain shield air bags, free of charge. The recall began on October 17, 2016. Owners may contact Toyota Customer Service Department at 1-800-331-4331. Toyota's number for this recall is Toyota G0U, and Lexus GLJ.
Seats:front Assembly:seat Heater/Cooler 2016-06-02 · campaign 16V396000 · 7,749 vehicles
Defect: Southeast Toyota Distributors, LLC (SET) is recalling certain 2005-2011 4Runner, Highlander, Sequoia, and Sienna, 2005-2010 Avalon and Tundra, 2006-2008 Camry Solara, 2006-2010 Highlander hybrid, 2006-2011 Rav4 and Tacoma, 2007-2010 FJ Cruiser, 2007-2011 Camry hybrid, 2009-2010 Venza, 2010-2012 Prius, 1988-1990 and 2005-2010 Camry, and 1989 and 2009-2010 Corolla vehicles equipped with aftermarket accessory seat heaters with a copper strand heating element. The electrical wiring in the seat heat
Risk: If damaged, the copper strand heating element may short circuit, increasing the risk of a fire.
Fix: SET will notify owners, and dealers will disconnect the seat heaters, free of charge, and refund the purchase price of the seat heater accessory. The recall began on July 14, 2016. Owners may contact SET customer service at 1-866-405-4226. SET number for this recall is SET16B.
Seats:front Assembly:seat Heater/Cooler 2014-11-19 · campaign 14V743000 · 3,233 vehicles
Defect: Southeast Toyota Distributors, LLC (SET) is recalling certain model year 2010-2011 Prius and Corolla, 2009-2011 Venza, 2006-2010 Avalon, 2007-2010 FJ Cruiser, 2005-2011 Sienna and Sequoia, 2006-2011 Tacoma 4x2 and 4x4, Camry, Highlander, Tundra 4x2 and 4x4, and 2007-2011 Rav4 and 4Runner. The affected vehicles may experience compression of the seat cushion which may damage the seat heater wiring.
Risk: Damage to the seat heater wiring could cause the wires to short, increasing the risk of the seat burning and causing personal injury to the occupant.
Fix: SET will notify owners, and dealers will disconnect the heaters with copper strand heating elements and refund the purchase price of the seat heater accessory, free of charge. The recall is expected to began in January 2015. Owners may contact SET customer service at 1-866-405-4226.
Hybrid Propulsion System: Inverter 2014-02-12 · campaign 14V053000 · 698,457 vehicles
Defect: Toyota is recalling certain model year 2010 through 2014 Prius vehicles. In the affected vehicles, the Intelligent Power Module (IPM) inside the inverter module (a component of the hybrid system) contains transistors that may become damaged from high operating temperatures. If this occurs, various warning lamps will be illuminated on the instrument panel and the vehicle will have reduced power allowing it to only drive a short distance.
Risk: The vehicle may enter a fail-safe/limp-home mode that limits the drivability of the vehicle. The hybrid system could also shut down completely resulting in a vehicle stall, increasing the risk of a crash.
Fix: Toyota will notify owners and dealers will update the software for both the motor/generator control electronic control unit (ECU) and the hybrid control ECU, free of charge. If an owner experiences a failure of the inverter before the vehicle receives updated software, the dealer will repair or replace the inverter assembly with a new one at no charge. The recall began on March 21, 2014. Owners may contact Toyota at 1-800-331-4331.
Seats 2013-01-16 · campaign 13V014000 · 3,235 vehicles
Defect: Southeast Toyota Distributors, LLC (SET) is recalling certain models interspersed through model years 2009 through 2013 as follows: model year 2009-2012 Tacoma, 4Runner, Camry, Camry Hybrid, Prius, and RAV4; model year 2009-2010 Avalon, FJ Cruiser, and Highlander Hybrid; model year 2010-2013 model year Corolla, Sienna and Tundra; model year 2009-2013 Highlander and Venza; model year 2012 Prius V; and model year 2010-2012 Sequoia. During modification by SET to include accessories such as leather
Risk: If the front passenger seat occupant sensing system is out of calibration, the front passenger airbags may not deploy or they may deploy inappropriately for the passenger's size and position. This could increase the risk of personal injury during the event of a vehicle crash necessitating airbag deployment.
Fix: Southeast Toyota will notify owners, and dealers will test the sensitivity of the occupant detection sensors, and recalibrate them as necessary. The recall began on March 21, 2013. Owners may contact Southeast Toyota at 1-800-301-6859.
Service bulletins (359)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Engine 2026-02-13 · T-SB-0009-26 · Service Bulletin/Repair Instructions
this bulletin includes basic procedures for performing a rescue charge on ni-mh high voltage (hv) batteries. this bulletin should be used in conjunction with the applicable model and model year repair manual while performing a rescue charge. the grx-5100 should be used wherever the repair manual ref
Engine 2026-02-13 · T-SB-0119-15 Rev2 · Service Bulletin/Repair Instructions
obsolete notice february 13, 2026: this bulletin is now obsolete. please see t-sb-0009-26.
Unknown Or Other 2026-01-07 · T-SB-0055-24 Rev2 · Service Bulletin/Repair Instructions
some 2005 – 2026 toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. follow the procedures in this bulletin to remediate the odor and address this condition. the purpose of this service bulletin is to provide general guidelines and procedures
Structure:body 2024-12-06 · T-SB-0039-24 Rev2 · Service Bulletin/Repair Instructions
the condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. if these contaminants settle and remain on a painted vehicle surface, especially the horizonal areas of the hood, roof,
Structure:body 2024-12-06 · T-SB-0038-24 Rev2 · Service Bulletin/Repair Instructions
to prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. the purpose of the wheel film is to shield the disc brake rotor from weather elements and initial rust before the vehicle is delivered to the customer.
Structure:body 2024-12-06 · T-SB-0035-24 Rev2 · Service Bulletin/Repair Instructions
acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. if these acidic compounds settle on an exposed vehicle, especially the horizontal areas such as the hood, roof, and decklid, significant damage to the painted surfa
Showing the 6 most recent of 359 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-27 · Service Brakes“i was driving the vehicle and a bunch of dash lights came on regarding traction control and stability and lost all brakes and almost caused an accident! the codes thrown showed a fluid level indicator and a leak in accumulator …”
2026-10-01 · Service Brakes“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 navigate to the furthest right lane, almost getting hit b…”
2026-09-30 · Service Brakes“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 without the brake pedal being applied. the cycling …”
2026-09-22 · Engine“coolant leak into the engine, confirmed by the toyota servicing center. this may be a common problem with the toyota prius, causing early engine failure from a design defect.…”
2026-09-14 · Service Brakes · 💥 crash“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 hissing/sipping sound outlined in toyota's prior technical servi…”
2026-08-10 · Service Brakes“vehicle information: 2011 toyota prius, 144,000 miles. component: hydraulic service brakes, electronic stability control, anti-lock braking system. description of incident: while driving at normal speeds, the vehicle suddenly experienced a severe reduction in braking capability. the dashboard simultaneously illuminated the brake warning light, abs…”
2026-07-26 · Service Brakes“every time i'd press the brakes there'd be an audible "click" noise and then when taking my foot off the brake it'd sound like a manual tire pump being pressed... kind of like air filling / hydraulic sound. this worried me (i don't mess around with brakes). one other thing that would happen is if i pressed the brake hard enough, the automatic braki…”
2026-06-26 · Service Brakes“vehicle information: year: 2011 make: toyota model: prius mileage at failure: 58,769 miles date of first use: february 20, 2012 complaint description: as i was driving on the freeway, my 2011 toyota prius brakelights all came on. i pulled off, had it towed to nearest mechanic, who diagnosed a failure involving the brake booster, brake actuator, an…”
2026-06-18 · Service Brakes“shortly after purchasing used last year i had my brake, traction control, abs, & tpms lights come on when stopping at a stop light all at once. i went and had it scanned and no codes showed up. i hear a buzzing from the brake actuator/ brake pump every 15 seconds. this all has been going on for almost a year now. over the weekend a loud buzzing…”
2026-06-16 · Service Brakes“the abs actuator (brake booster) went out suddenly. it is 100% available for inspection. it is being towed to m&m auto repair in gaston sc. i was not sure if the car was going to stop when i was trying to figure out what was wrong. the car was acting like it wasn't going to stop until a few seconds later. people online have had a similar problem as…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.