29 problems have been reported for the 2009 Lexus ES. The following chart shows the 10 most common problems for 2009 Lexus ES. The number one most common problem is related to the vehicle's air bags with 14 problems. The second most common problem is related to the vehicle's equipment (3 problems).
| Problem Category | Number of Problems |
|---|---|
| Air Bag | |
| Equipment | |
| Vehicle Speed Control | |
| Electrical System | |
| Structure | |
| Steering | |
| Engine And Engine Cooling | |
| Service Brakes | |
| Visibility | |
| 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 2009 Lexus ES in the United States are 42,833 units [1]. If the total number of problems reported by Lexus ES owners in the last 16 years is 29, and the age of the vehicle is 16, the PPMY index can then be calculated as
PPMY Index = 29 / 42,833 / 16 * 1000 = 0.04.
For more information, refer to this page: A study of reliability comparison across Lexus ES model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2009 Lexus ES in 2009.
| Service Year | Number of Problems |
|---|---|
| 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 Lexus ES, the following table can be used to compare the 2009 Lexus ES with the Lexus ES from other model years. Note that the number of problems reported for the 2009 ES is 29 while the average number of problems reported for the 29 model years of the Lexus ES is 26.