139 problems have been reported for the 2009 Jeep Liberty. The following chart shows the 19 most common problems for 2009 Jeep Liberty. The number one most common problem is related to the vehicle's structure with 18 problems. The second most common problem is related to the vehicle's electrical system (18 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 2009 Jeep Liberty in the United States are 6,099 units [1]. If the total number of problems reported by Jeep Liberty owners in the last 17 years is 139, and the age of the vehicle is 17, the PPMY index can then be calculated as
PPMY Index = 139 / 6,099 / 17 * 1000 = 1.34.
For more information, refer to this page: A study of reliability comparison across Jeep Liberty model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2009 Jeep Liberty 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 Jeep Liberty, the following table can be used to compare the 2009 Jeep Liberty with the Jeep Liberty from other model years. Note that the number of problems reported for the 2009 Liberty is 139 while the average number of problems reported for the 13 model years of the Jeep Liberty is 875.
| Model Year | Number of Problems |
|---|---|
| 2012 Liberty | |
| 2011 Liberty | |
| 2010 Liberty | |
| 2009 Liberty | |
| 2008 Liberty | |
| 2007 Liberty | |
| 2006 Liberty | |
| 2005 Liberty | |
| 2004 Liberty | |
| 2003 Liberty | |
| 2002 Liberty | |
| 2001 Liberty | |
| 2000 Liberty |