136 problems have been reported for the 2021 Subaru Ascent. The following chart shows the 19 most common problems for 2021 Subaru Ascent. The number one most common problem is related to the vehicle's power train with 18 problems. The second most common problem is related to the vehicle's electrical system (17 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 Subaru Ascent in the United States are 75,065 units [1]. If the total number of problems reported by Subaru Ascent owners in the last 5 years is 136, and the age of the vehicle is 5, the PPMY index can then be calculated as
PPMY Index = 136 / 75,065 / 5 * 1000 = 0.36.
For more information, refer to this page: A study of reliability comparison across Subaru Ascent model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2021 Subaru Ascent in 2021.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 |
When making the decision between buying a new or used Subaru Ascent, the following table can be used to compare the 2021 Subaru Ascent with the Subaru Ascent from other model years. Note that the number of problems reported for the 2021 Ascent is 136 while the average number of problems reported for the 8 model years of the Subaru Ascent is 160.
| Model Year | Number of Problems |
|---|---|
| 2026 Ascent | |
| 2025 Ascent | |
| 2024 Ascent | |
| 2023 Ascent | |
| 2022 Ascent | |
| 2021 Ascent | |
| 2020 Ascent | |
| 2019 Ascent |