2012 TOYOTA PRIUS Problems
Real NHTSA owner complaints for the 2012 Toyota Prius. This model year has 677 NHTSA complaints — top issue: Brake System.
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This page shows the model year's reputation. The VIN tells you about the specific car — accidents, title issues, odometer rollbacks, and open recalls.
Worst 2012 Toyota Prius Problems
Top 3 most-reported issues with average mileage at failure.
Brake System
Electrical Faults
Engine Problems
Considering a 2012 Toyota Prius?
This page shows the model year's reputation. The VIN tells you about this specific car — accidents, title issues, odometer fraud. Full report just $4.99 (vs. Carfax $44.99).
All Problems by Category
Every NHTSA complaint category for the 2012 Toyota Prius. A single complaint may appear in multiple categories.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Brake System | 335 | 25 | — | — | |
| Electrical Faults | 89 | 1 | 3 | — | |
| Engine Problems | 72 | 1 | 1 | — | |
| Uncategorized Issues | 54 | 6 | — | — | |
| Airbag Malfunctions | 42 | 32 | 1 | — | |
| Headlight/Taillight Failures | 42 | 1 | — | — | |
| Visibility/Wiper | 32 | — | — | — | |
| Transmission / Drivetrain | 31 | 5 | — | — | |
| Unintended Acceleration | 30 | 15 | — | — | |
| Structural Problems | 28 | 12 | — | — | |
| Steering Defects | 24 | 2 | — | — | |
| Electronic Stability Control (Esc) | 18 | 1 | — | — | |
| Hydraulic | 16 | 1 | — | — | |
| Fuel/Propulsion System | 16 | — | — | — | |
| Seat Belt Issues | 16 | 10 | 1 | — | |
| Seat-Related Issues | 11 | 2 | — | — | |
| Suspension Failures | 9 | 1 | — | — | |
| Hybrid Propulsion System | 9 | 1 | — | — | |
| Forward Collision Avoidance: AEB | 9 | — | — | — | |
| Wheel Issues | 6 | 3 | — | — | |
| Air | 5 | — | — | — | |
| Fuel System | 4 | — | — | — | |
| Other | 4 | — | — | — | |
| Equipment Adaptive/Mobility | 3 | — | — | — | |
| Visibility | 3 | — | — | — | |
| Tire Issues | 1 | — | — | — | |
| Insert | 1 | — | — | — | |
| Padding | 1 | — | — | — | |
| Traction Control System | 1 | — | — | — | |
| Lane Departure | 1 | — | — | — | |
| Electric | 1 | — | — | — | |
| Back Over Prevention | 1 | — | — | — | |
| Equipment | 1 | — | — | — |
Source: NHTSA Complaints Database. Complaint counts may exceed total complaints because one report can span multiple categories.
Search Owner Complaints
Read what owners actually reported to NHTSA for the 2012 Toyota Prius. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
Showing 400 most recent complaints of 677 total. View all on NHTSA ↗
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 we…
Odometer Fraud. The contact purchased a 2012 Toyota Prius. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 187,000, and at the…
The contact owns a 2012 Toyota Prius. The contact stated while driving at an undisclosed speed, several unknown warning lights illuminated, with an abnormal sound coming from the vehicle. The vehicle was taken to the dealer where it was diagnosed with brake booster failure. The c…
My Brake Booster/Actuator failed on me while on the freeway with out any warnings. It made it really hard to stop the car. I didn't find out what it was untill I took it into a repair shop and they told me it was the Brake Booster/Actuator.
The vehicle is experiencing a suspected brake actuator / brake booster failure. Multiple warning lights appeared simultaneously, including ABS, Brake, Traction Control, and Master Warning lights. The vehicle produces a frequent buzzing noise from the brake system, especially at …
Vehicle check engine code C1391 (Antilock Brake System - abnormal leak in accumulator) came up on 2/5/2026. Recommended repair is to replace the Brake Booster Pump and Assembly, Brake Booster - over $1000 in parts alone. This WAS covered by an Extended Warranty by Toyota (10 year…
Vehicle: 2012 Toyota Prius Mileage: Approximately 217,000 miles While driving normally in traffic, the vehicle experienced a sudden and unexpected brake system failure. Multiple warning lights illuminated simultaneously, including the red BRAKE warning light, ABS warning light, …
My 2012 Toyota Prius plug in hybrid had just passed state inspections and was even looked at by a dealership a year ago with no reported issues. I brought up a whirring issue at the dealership when breaking but the dealership said that’s normal for a hybrid. In a matter of minute…
While driving, the vehicle experienced a sudden brake system malfunction without prior warning or gradual degradation. The vehicle was being operated under normal driving, road, and weather conditions. No recent brake service, repairs, or aftermarket modifications had been perfor…
The contact owns a 2012 Toyota Prius. The contact stated that while reversing, the driver's side rear wheel flipped over. The vehicle was towed to the dealer, where it was diagnosed with a corroded I-Beam assembly on the rear wheel. The contact was informed that the driver's side…
Odometer Fraud. The contact’s son recently purchased a 2012 Toyota Prius. The vehicle was a private sale. After the purchase, it was discovered that there was a mileage discrepancy based on the Carfax report. At the time of purchase, the vehicle displayed 137,000 miles. However, …
While driving on a city road below the speed limit, braking was compromised leading to loss of traction and failure of the ABS system. During the incident, the brake, ABS, and engine warning lights all turned on and a collision was only avoided due to pumping of the brakes. Furth…
The hybrid system fails to enter “Ready” mode with no SMR engagement audible from the junction box. Dashboard displays ABS, brake, engine, and master warning lights. OBD codes include U0142, U0155, and previously U0073 . Rear brake lights function normally when pedal is pressed. …
While driving 60 mph in highway, ABS, traction control and brake lights lit up and vehicle lost its effective braking power. There were no prior warnings prior to this failure. It was a sudden incident. Since it wasn't rush hour, I could safely reduce speed and bring the car to s…
Traction control.Abs and brake warning lights all came on.
2012 Toyota Prius. The brake system malfunctioned and my daughter was almost in a wreck. The ABS, traction control, and brake warning lights on the bashboard all illuminated at the same time. The brake pedal feels soft and is less responsive requiring more effort to stop the v…
While pulling out of a parallel parking spot going slightly uphill, I braked as I looked around the back of a double parked truck. I saw a car coming, braked hard, and suddenly my car surged forward across the street and hit a parked car. I looked down and saw that my foot was …
The contact owns a 2012 Toyota Prius. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the check engine and the hybrid warning lights were illuminated…
Brake getting stuck on the floor would have to press on brake really hard just to get a response, this will happen out of the blue! Driving in highway or just driving off the driveway. I almost hit a car in front of me due to lack of brake, i had to swerve to the side! First appe…
While driving on the freeway I applied the brakes and the brakes suddenly felt soft and not very responsive. At that moment 3 dashboard lights turned on: ABS, BRAKE, and the slip indicator lights. I carefully got out of the freeway, parked the car, and had the car towed to an in…
Source: NHTSA Complaints Database. Real owner reports for the 2012 Toyota Prius.
Recalls for 2012 Toyota Prius
6 campaignsNHTSA recall campaigns for the 2012 Toyota Prius. Recalls are free to fix at any authorized dealer. Run a VIN check below to see if your specific vehicle has open recalls.
2012 Toyota Prius — FAQ
Answers based on real NHTSA complaint and recall data for this specific model year.
Is the 2012 Toyota Prius reliable?▾
Severe Issues. The 2012 Toyota Prius has 677 NHTSA owner complaints, 70 crash-related, and 6 recall campaigns. The most reported issue is Brake System (335 complaints). Source: NHTSA via VinSpector AI.
What are the most common problems with the 2012 Toyota Prius?▾
#1: Brake System (335 complaints). #2: Electrical Faults (89 complaints). #3: Engine Problems (72 complaints)
At what mileage do problems start on the 2012 Toyota Prius?▾
Mileage data is not available or insufficient for this model year.
How safe is the 2012 Toyota Prius?▾
The 2012 Toyota Prius has 70 crash-related complaints and 4 fire reports out of 677 total NHTSA complaints. 47 injuries were reported. For NCAP lab crash test star ratings, visit nhtsa.gov/ratings.
Does the 2012 Toyota Prius have any recalls?▾
Yes — 6 NHTSA recall campaigns affect the 2012 Toyota Prius. The largest issue: HYBRID PROPULSION SYSTEM. Check nhtsa.gov/recalls or run a VIN check to see if your specific vehicle has open recalls.
Should I buy a 2012 Toyota Prius?▾
The 2012 Toyota Prius has severe issues — review the top problems before buying. Pay particular attention to Brake System issues. Always run a VIN check on the specific car you're considering to check for accident history, open recalls, and title brands.
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinSpector AI.
Wider context: See the full Toyota Prius reliability report with year-by-year comparison.
Check Your Specific 2012 Toyota Prius
Real owner complaints tell you about the model. The VIN tells you about your specific car — accidents, title issues, odometer fraud. Full report just $4.99.