237 problems have been reported for the 2020 Chevrolet Bolt Ev. The following chart shows the 20 most common problems for 2020 Chevrolet Bolt Ev. The number one most common problem is related to the vehicle's electrical system with 92 problems. The second most common problem is related to the vehicle's fuel system, other (30 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 2020 Chevrolet Bolt Ev in the United States are 28,245 units [1]. If the total number of problems reported by Chevrolet Bolt Ev owners in the last 6 years is 237, and the age of the vehicle is 6, the PPMY index can then be calculated as
PPMY Index = 237 / 28,245 / 6 * 1000 = 1.40.
For more information, refer to this page: A study of reliability comparison across Chevrolet Bolt Ev model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2020 Chevrolet Bolt Ev in 2020.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 |
When making the decision between buying a new or used Chevrolet Bolt Ev, the following table can be used to compare the 2020 Chevrolet Bolt Ev with the Chevrolet Bolt Ev from other model years. Note that the number of problems reported for the 2020 Bolt Ev is 237 while the average number of problems reported for the 8 model years of the Chevrolet Bolt Ev is 167.
| Model Year | Number of Problems |
|---|---|
| 2027 Bolt Ev | |
| 2023 Bolt Ev | |
| 2022 Bolt Ev | |
| 2021 Bolt Ev | |
| 2020 Bolt Ev | |
| 2019 Bolt Ev | |
| 2018 Bolt Ev | |
| 2017 Bolt Ev |