2012 Toyota Prius problems, complaints & recalls
Updated from NHTSA data · How we count
Owners have filed 194 complaints with NHTSA about the 2012 Toyota Prius, most often about brakes. There are 6 recalls for this model year.
- Complaints
- 194
- Recalls
- 6
- Crashes
- 5
- Fires
- 1
- Injuries
- 5
- Median mileage
- 122,500 mi at time of problem
Key facts
- Brakes is the most-reported problem area, named in 142 of 194 complaints (73%).
- Electrical System (21) and engine (13) follow.
- Half of the complaints that list mileage happened before 122,500 mi.
- Owners reported 5 crashes, 1 fire and 5 injuries.
- The 2012 Toyota Prius has 6 recalls on file.
- NHTSA has opened 3 defect investigations covering this vehicle.
- It ranks 3rd of 22 Toyota Prius model years by our severity-weighted complaint score (1st = worst).
2012 Toyota Prius problems by category
- Brakes · 2 crashes142 complaints
- 21 complaints
- Other / Unknown · 3 crashes17 complaints
- Engine13 complaints
- Lighting7 complaints
- Fuel, Hybrid & EV Propulsion6 complaints
- Driver Assistance & Safety Tech6 complaints
- Steering5 complaints
- Airbags · 2 crashes3 complaints
- Suspension3 complaints
- Transmission & Drivetrain3 complaints
- Visibility & Wipers3 complaints
- Wheels & Tires3 complaints
- Acceleration & Cruise Control2 complaints
- Body & Structure1 complaints
A complaint can mention more than one problem area, so categories add up to more than the total.
Most-reported components
| Component (as filed with NHTSA) | Complaints |
|---|---|
| Service brakes | 129 |
| Electrical system | 18 |
| Unknown or other | 16 |
| Engine | 13 |
| Service brakes, hydraulic | 8 |
| Exterior lighting | 7 |
| Steering | 5 |
| Fuel/propulsion system | 4 |
When problems happen (mileage)
2012 Toyota Prius recalls (6)
- HYBRID PROPULSION SYSTEM
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.
Remedy: 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
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.
Remedy: 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
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 heaters may be damaged when the seat cushion is compressed.
Risk: If damaged, the copper strand heating element may short circuit, increasing the risk of a fire.
Remedy: 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.
- ELECTRICAL SYSTEM:SOFTWARE · HYBRID PROPULSION SYSTEM: INVERTER
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.
Remedy: 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
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 vehicles were sold with labels that were outside the allowable one percent of accuracy of actual weight added. Thus, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) Number 110, "Tire Selection and Rims."
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.
Remedy: 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.
- AIR BAGS:FRONTAL:SENSOR/CONTROL MODULE-INACTIVE · SEATS
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 seat covers, seat heaters or headrest DVD systems, these vehicles may not have had the passenger seat occupant sensing system calibration tested. Without passing the calibration test, the occupant sensing system may not operate as designed.
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.
Remedy: 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.
NHTSA defect investigations
- DP23005Opened Nov 22, 2023Open
Brake Actuator Valve Wear
The Office of Defects Investigation (ODI) has received a petition dated September 19, 2023 from the owner of a 2012 Toyota Prius V requesting that ODI reevaluate its decision to deny DP19-004. In the letter, the petitioner reported experiencing an unexpected and complete loss of brake power while driving, accompanied by multiple dashboard warning lights. This petition is based on the petitioner's direct experience and assessment that ODI closed DP19-004 because its prompting petition was withdrawn by that petitioner. ODI will review the work conducted during DP19-004 and a review of any additi…
Pedestrian alert sounds
NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after Marc…
- DP19004Opened Sep 30, 2019Closed Jan 21, 2021
Brake Actuator Valve Wear
On September 19, 2019, the Office of Defects Investigation (ODI) received a defect petition from Mr. Roger Hogan requesting that the Agency investigate and recall certain Toyota Prius, Prius PHV, Camry Hybrid and Avalon Hybrid vehicles for a brake actuator valve wear condition covered under Toyota Customer Support Programs ZJB and ZKK (subject CSP?s). In support of his request, the petitioner identified 117 NHTSA complaints allegedly related to the subject CSP condition, including 60 reporting crashes. On September 30, 2019, ODI opened Defect Petition DP19-004 to evaluate the petitioner?s requ…
NHTSA 5-Star safety ratings
| Version | Overall | Frontal | Side | Rollover |
|---|---|---|---|---|
| 2012 Toyota Prius 5 HB FWD | ★★★★★ | ★★★★☆ | ★★★★★ | ★★★★☆ |
Recent 2012 Toyota Prius complaints
Excerpts of the newest owner complaints, lightly cleaned of personal details. Complaints are unverified owner reports.
- Filed Oct 1, 2026FLBrakes
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 Toyota's Customer Support Program Notice ZJB but it is past the coverage expiration date. There should not be an expiration date…
NHTSA complaint #11768222 · source - Filed Sep 18, 2026NVBrakes
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 issue and proceeded with the repair. They even have an extended warrantee but due to covid I was unable to get the repair in time for…
NHTSA complaint #11765387 · source - Filed Aug 18, 2026140,000 miUTCrash2 injuredTowedAirbags
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. The contact and her husband were transported by ambulance to the hospital. The contact suffered a fractured sternum, five…
NHTSA complaint #11757721 · source - Filed Jul 6, 2026ILEngineAcceleration & Cruise ControlWheels & Tires
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.
NHTSA complaint #11748670 · source - Filed Jul 2, 2026HIBrakes
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 Customer Support Program ZJB, which covered 2010-2015 Prius vehicles for brake booster and brake booster pump assembly failures…
NHTSA complaint #11748062 · source - Filed May 28, 2026CABrakes
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.
NHTSA complaint #11740616 · source - Filed May 7, 2026NCBrakes
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 than their initial estimate of ~118,960 states impacted vehicles.l because Toyota is declaring my vehicle is outside of their…
NHTSA complaint #11736344 · source - Filed Apr 27, 2026CABrakes
2012 Prius with 174,344 miles in great condition, with regularly scheduled oil changes. ABS/Break Actuator failure on freeway with no warning other than a beep a few seconds before the breaks disappeared completely. Break pads changed 4 months ago and new wheels installed as well. This is a known problem with Toyota under the TSB002419 where Break booster actuator was put on a customer service program to be fixed by the dealerships, but has since expired since 2022. The cars…
NHTSA complaint #11734136 · source
Compare the 2012 Toyota Prius with another vehicle →
Other 2012 Toyota models
Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data, as of Oct 10, 2026. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology