115 problems have been reported for the 2021 Acura TLX. The following chart shows the 16 most common problems for 2021 Acura TLX. The number one most common problem is related to the vehicle's power train with 43 problems. The second most common problem is related to the vehicle's electrical system (11 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 2021 Acura TLX in the United States are 30,777 units [1]. If the total number of problems reported by Acura TLX owners in the last 5 years is 115, and the age of the vehicle is 5, the PPMY index can then be calculated as
PPMY Index = 115 / 30,777 / 5 * 1000 = 0.75.
For more information, refer to this page: A study of reliability comparison across Acura TLX model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2021 Acura TLX in 2021.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 |
When making the decision between buying a new or used Acura TLX, the following table can be used to compare the 2021 Acura TLX with the Acura TLX from other model years. Note that the number of problems reported for the 2021 TLX is 115 while the average number of problems reported for the 12 model years of the Acura TLX is 108.