20 problems have been reported for the 2018 Volvo S90. The following chart shows the 13 most common problems for 2018 Volvo S90. The number one most common problem is related to the vehicle's equipment with 4 problems. The second most common problem is related to the vehicle's electrical system (3 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 2018 Volvo S90 in the United States are 12,175 units [1]. If the total number of problems reported by Volvo S90 owners in the last 8 years is 20, and the age of the vehicle is 8, the PPMY index can then be calculated as
PPMY Index = 20 / 12,175 / 8 * 1000 = 0.21.
For more information, refer to this page: A study of reliability comparison across Volvo S90 model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2018 Volvo S90 in 2018.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 |
When making the decision between buying a new or used Volvo S90, the following table can be used to compare the 2018 Volvo S90 with the Volvo S90 from other model years. Note that the number of problems reported for the 2018 S90 is 20 while the average number of problems reported for the 10 model years of the Volvo S90 is 8.