4 problems have been reported for the 2021 Lexus LS. The following chart shows the 4 most common problems for 2021 Lexus LS. The number one most common problem is related to the vehicle's exterior lighting with 1 problem. The second most common problem is related to the vehicle's tires (1 problem).
| Problem Category | Number of Problems |
|---|---|
| Exterior Lighting | |
| Tire | |
| Equipment | |
| Wheel |
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 2021 Lexus LS in the United States are 3,322 units [1]. If the total number of problems reported by Lexus LS owners in the last 5 years is 4, and the age of the vehicle is 5, the PPMY index can then be calculated as
PPMY Index = 4 / 3,322 / 5 * 1000 = 0.24.
For more information, refer to this page: A study of reliability comparison across Lexus LS model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2021 Lexus LS in 2021.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 |
When making the decision between buying a new or used Lexus LS, the following table can be used to compare the 2021 Lexus LS with the Lexus LS from other model years. Note that the number of problems reported for the 2021 LS is 4 while the average number of problems reported for the 26 model years of the Lexus LS is 10.