2012 Toyota Prius problems, complaints & recalls
Most-reported problem areas: Service Brakes (169) · Exterior Lighting (34) · Visibility/Wiper (28)
🧭 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
236 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.
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.
Equipment:other:labels 2013-04-09 · campaign 13V123000 · 7,525 vehicles
Defect: Southeast Toyota is recalling certain model year 2008 and 2010-2013 Toyota Tundra, 2010-2012 Rav4, 2012 Toyota Sequoia, 2010-2011 Toyota Corolla, 2010-2011 Toyota Camry and Camry Hybrid, 2010-2013 Toyota Highlander and Highlander Hybrid, 2010-2013 Toyota FJ Cruiser, 2011 Toyota Land Cruiser, 2010-2013 Toyota Venza, 2010-2011 Toyota 4Runner, 2010-2013 Toyota Tacoma, 2011-2012 Toyota Sienna, 2012 Toyota Prius, 2013 Scion FR-S, 2011 Scion XD, 2011 Scion XB, and 2012 Scion TC vehicles. These vehicl
Risk: An inaccurate label could lead to owners overloading their vehicles and tires. An overloaded vehicle can result in a tire failure which may result in a vehicle crash, personal injury, or property damage.
Fix: Southeast Toyota will notify owners and provide a corrected label with instructions concerning its installation. A small group of the affected vehicles will need additonal remedies which are still being developed. The recall began on May 28, 2013. Owners may contact Southeast Toyota at 1-800-301-6859.
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 (461)
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 461 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-01 · Service Brakes“when i started my car this morning, the red brake light, abs warning light and anti-slip light were all illuminated. the car does still stop but the brakes are very spongy and there's a clicking noise under the hood. i only moved the car out of the driveway to allow other cars to leave. the brake fluid is not low. this is the problem listed under t…”
2026-09-18 · Service Brakes“1. my brake booster failed/malfunctioned. i had to get it repaired/replaced by toyota so it might be with the dealership or thrown out by now. 2. i had to take it in because i had an incident where i was unable to apply the break on the car. i was lucky enough to be in a not busy street and was able to pull over safely. 3. toyota diagnosed the issu…”
2026-08-18 · Air Bags · 140,000 mi · 💥 crash“the contact owned a 2012 toyota prius. the contact stated that while making a left turn at 10 mph, another vehicle crashed into the vehicle and t-boned the front passenger's side door of the vehicle. the air bags did not deploy. there was no warning light illuminated. after the impact, the front windshield slowly cracked. a police report was filed.…”
2026-07-17 · Service Brakes“brake warning lights on, buzzing sound every 10 seconds. likely a known actuator and master cylinder issue…”
2026-07-17 · Service Brakes“brake lights icons stay on mechanic at toyota dealership state need new brak master cylinder and booster…”
2026-07-06 · Wheels“unknown. there were a multitude of codes that appeared on the diagnostics causing problems with engine. the temperature, brake, tire sensor lights are all on. the cruise control is not working. white smoke emitting from tail pipe and engine. main engine coolant leaking. car overheating rapidly.…”
2026-07-02 · Service Brakes“my 2012 toyota prius is experiencing brake actuator pump failure, presenting diagnostic trouble codes c1253 (brake actuator pump motor stuck/locked) and c1256 (brake actuator pump motor overcurrent). these codes trigger abs, brake, and vsc warning lights and disable abs and stability control. toyota previously acknowledged this exact defect under c…”
2026-06-15 · Service Brakes“the power brake unit and actuator are failing. …”
2026-05-28 · Service Brakes“almost had an accident due to the brake master, actuator and booster pump assemblies, failing. there were no warning lights alerting me to an issue. just lost ability to break and car shut off completely while in motion. …”
2026-05-07 · Service Brakes“the brake booster and brake booster pump assembly (also referred to as the accumulater or accentuater) have failed in my vehicle the same as toyota's known defect that was mentioned in their customer support program 20te07 (part numbers can be found within the filing of their csp 20te07). i am reporting that this issue appears to have affected more…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.