AI Damage2012 Toyota Prius Plug-IN Hybrid reliability: common problems
Owners of the 2012 Toyota Prius Plug-IN Hybrid filed 25 complaints with NHTSA, most often about service brakes and electrical system. Details by component below, with sources.
Key figures
- Owner complaints
- 25
- involving a crash
- 1
What fails most often
- 1 Service brakes 48% of all complaints
- 2 Electrical system 12% of all complaints
- 3 Engine 8% of all complaints
- 4 Powertrain 8% of all complaints
- 5 Vehicle speed control 8% of all complaints
- 6 Electronic stability control 4% of all complaints
- 7 Exterior lighting 4% of all complaints
- 8 Hybrid propulsion system 4% of all complaints
- Service brakes: 12 complaints (48% of all), 1 of them with a crash reported by the owner.
- Electrical system: 3 complaints (12% of all).
- Engine: 2 complaints (8% of all).
- Powertrain: 2 complaints (8% of all).
- Vehicle speed control: 2 complaints (8% of all), 1 of them with a crash reported by the owner.
Symptoms owners describe
How many of the 25 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Service brakes | 12 | 1 | 0 |
| Electrical system | 3 | 0 | 0 |
| Engine | 2 | 0 | 0 |
| Powertrain | 2 | 0 | 0 |
| Vehicle speed control | 2 | 1 | 0 |
| Electronic stability control | 1 | 0 | 0 |
| Exterior lighting | 1 | 0 | 0 |
| Hybrid propulsion system | 1 | 0 | 0 |
| Steering | 1 | 1 | 0 |
| Suspension | 1 | 0 | 0 |
| Wheels | 1 | 0 | 0 |
| Other | 4 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Today 05/25/2024 noticed a slight camber on the right rear wheel. Jacked up the car and removed the right rear to take a closer look and realized the rear axle/subframe was splitting in half along the weld point.
The contact stated that while driving down a winding road, the brake warning light and brake message suddenly activated and while depressing the brake pedal, the pedal extended to the floorboard and the vehicle would not immediately stop.
The contact stated while driving approximately 70 MPH, the stabili-trak, ABS, and a several unknown warning lights were illuminated. The contact stated there were also audible alarms being sounded. The contact depressed the brake pedal and the brake pedal failed to respond.
2012 level 5 plug-in I was driving on the freeway with radar cruise control and the vehicle dash lit up with check pcs system ever warning light came on the brake petal was not there as normal it would go about half way down to engage very scary I took it to the dealership service said I need new brake booster…
Headlights keep burning out. Both sides. About every four months. This is dangerous!!! And unnecessarily expensive!!!
Auto stopped. Engine running. Brake pedal pressed. Transmission in drive. When opening driver door and releasing brake pedal, car moves forward. Vin included in attached file.
Tl* the contact owns a 2012 toyota prius plug-in hybrid. While driving approximately 55 mph, the eco mode showed less fuel per mile. There was no warning indicator illuminated.
It could cause the car brake by itself without warning and could cause big accident, especially in the freeway.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 7,131 of 32,261 model years in the NHTSA data (top 22% most complained about).
On average one model year of the Prius Plug-IN Hybrid has 7 complaints (10 years in the data). This year has 25, above average.
What to check before buying
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
Other years of this model
Questions and answers
What are the most common problems with the 2012 Toyota Prius Plug-IN Hybrid?
Owner complaints to NHTSA most often mention: service brakes, electrical system, engine. Total complaints: 25. The most frequent symptoms in complaint texts: warning lights, check engine (24%), loss of power / limp mode (8%), driver assists: adaptive cruise, lane keeping (4%).
How many service bulletins (TSB) were issued for the 2012 Toyota Prius Plug-IN Hybrid?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2012 Toyota Prius Plug-IN Hybrid from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2012 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-07.