7 problems have been reported for the 2003 Lexus GX. The following chart shows the 5 most common problems for 2003 Lexus GX. The number one most common problem is related to the vehicle's equipment with 3 problems. The second most common problem is related to the vehicle's power train (1 problem).
| Problem Category | Number of Problems |
|---|---|
| Equipment | |
| Power Train | |
| Electronic Stability Control | |
| Vehicle Speed Control | |
| Suspension |
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 Lexus GX in the United States are 22,986 units [1]. If the total number of problems reported by Lexus GX owners in the last 19 years is 7, and the age of the vehicle is 19, the PPMY index can then be calculated as
PPMY Index = 7 / 22,986 / 19 * 1000 = 0.02.
For more information, refer to this page: A study of reliability comparison across Lexus GX model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2003 Lexus GX in 2003.
| Service Year | Number of Problems |
|---|---|
| 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 Lexus GX, the following table can be used to compare the 2003 Lexus GX with the Lexus GX from other model years. Note that the number of problems reported for the 2003 GX is 7 while the average number of problems reported for the 12 model years of the Lexus GX is 8.