51 problems have been reported for the 2019 Toyota Prius. The following chart shows the 17 most common problems for 2019 Toyota Prius. The number one most common problem is related to the vehicle's service brakes, hydraulic with 9 problems. The second most common problem is related to the vehicle's equipment (8 problems).
In our research we use the PPMY index to compare the reliability of vehicles. The PPMY index of a certain model is defined as the problems reported per thousand vehicles per Year. The total sales of the 2019 Toyota Prius in the United States are 40,266 units [1]. If the total number of problems reported by Toyota Prius owners in the last 7 years is 51, and the age of the vehicle is 7, the PPMY index can then be calculated as
PPMY Index = 51 / 40,266 / 7 * 1000 = 0.18.
For more information, refer to this page: A study of reliability comparison across Toyota Prius model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2019 Toyota Prius in 2019.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 |
When making the decision between buying a new or used Toyota Prius, the following table can be used to compare the 2019 Toyota Prius with the Toyota Prius from other model years. Note that the number of problems reported for the 2019 Prius is 51 while the average number of problems reported for the 27 model years of the Toyota Prius is 608.
| Model Year | Number of Problems |
|---|---|
| 2026 Prius | |
| 2025 Prius | |
| 2024 Prius | |
| 2023 Prius | |
| 2022 Prius | |
| 2021 Prius | |
| 2020 Prius | |
| 2019 Prius | |
| 2018 Prius | |
| 2017 Prius | |
| 2016 Prius | |
| 2015 Prius | |
| 2014 Prius | |
| 2013 Prius | |
| 2012 Prius | |
| 2011 Prius | |
| 2010 Prius | |
| 2009 Prius | |
| 2008 Prius | |
| 2007 Prius | |
| 2006 Prius | |
| 2005 Prius | |
| 2004 Prius | |
| 2003 Prius | |
| 2002 Prius | |
| 2001 Prius | |
| 2000 Prius |