635 problems have been reported for the 2009 Toyota Prius. The following chart shows the 23 most common problems for 2009 Toyota Prius. The number one most common problem is related to the vehicle's service brakes, hydraulic with 204 problems. The second most common problem is related to the vehicle's exterior lighting (108 problems).
The following chart shows the number of problems reported during each of the service years since the debut of the 2009 Toyota Prius in 2009.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 | |
| 2014 | |
| 2013 | |
| 2012 | |
| 2011 | |
| 2010 | |
| 2009 |
When making the decision between buying a new or used Toyota Prius, the following table can be used to compare the 2009 Toyota Prius with the Toyota Prius from other model years. Note that the number of problems reported for the 2009 Prius is 635 while the average number of problems reported for the 27 model years of the Toyota Prius is 605.
| 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 |