2012 Toyota Prius power train problems
21 owner complaints filed with NHTSA name the power train on the 2012 Toyota Prius — 5% of all complaints for this model year.
What owners report
“I am writing to bring attention to a critical safety issue affecting the 2012 Toyota Prius and other Toyota models equipped with the brake booster and actuator system. These components are failing at alarming rates, leaving vehicles with no functional brakes, ABS, or traction control. Additionally…”
filed Jan 21, 2025
“The contact owns a 2012 Toyota Prius. The contact noticed that there was a significant amount of water on the floorboards from the windshield whenever it rained heavily. Additionally, the contact stated while at a traffic sign on a hill, the vehicle would roll backwards while in drive when she took…”
filed Mar 9, 2022
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other Prius years
| Year | Reports | Share |
|---|---|---|
| 2024 Prius | 1 | 5% |
| 2022 Prius | 1 | 4% |
| 2019 Prius | 2 | 7% |
| 2018 Prius | 2 | 6% |
| 2017 Prius | 4 | 4% |
| 2016 Prius | 14 | 9% |
| 2015 Prius | 13 | 8% |
| 2014 Prius | 6 | 3% |
| 2013 Prius | 14 | 3% |
| 2011 Prius | 18 | 3% |
| 2010 Prius | 79 | 3% |
| 2009 Prius | 22 | 4% |
Other reported problem areas on the 2012 Toyota Prius
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.