849 problems have been reported for the 2003 Jeep Grand Cherokee. The following chart shows the 22 most common problems for 2003 Jeep Grand Cherokee. The number one most common problem is related to the vehicle's air bags with 254 problems. The second most common problem is related to the vehicle's visibility (170 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 2003 Jeep Grand Cherokee in the United States are 30,498 units [1]. If the total number of problems reported by Jeep Grand Cherokee owners in the last 23 years is 849, and the age of the vehicle is 23, the PPMY index can then be calculated as
PPMY Index = 849 / 30,498 / 23 * 1000 = 1.21.
For more information, refer to this page: A study of reliability comparison across Jeep Grand Cherokee model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2003 Jeep Grand Cherokee in 2003.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 | |
| 2014 | |
| 2013 | |
| 2012 | |
| 2011 | |
| 2010 | |
| 2009 | |
| 2008 | |
| 2007 | |
| 2006 | |
| 2005 | |
| 2004 | |
| 2003 |
When making the decision between buying a new or used Jeep Grand Cherokee, the following table can be used to compare the 2003 Jeep Grand Cherokee with the Jeep Grand Cherokee from other model years. Note that the number of problems reported for the 2003 Grand Cherokee is 849 while the average number of problems reported for the 31 model years of the Jeep Grand Cherokee is 1,187.