483 problems have been reported for the 2021 Ford Explorer. The following chart shows the 28 most common problems for 2021 Ford Explorer. The number one most common problem is related to the vehicle's power train with 103 problems. The second most common problem is related to the vehicle's equipment (77 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 Ford Explorer in the United States are 221,040 units [1]. If the total number of problems reported by Ford Explorer owners in the last 5 years is 483, and the age of the vehicle is 5, the PPMY index can then be calculated as
PPMY Index = 483 / 221,040 / 5 * 1000 = 0.44.
For more information, refer to this page: A study of reliability comparison across Ford Explorer model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2021 Ford Explorer in 2021.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 |
When making the decision between buying a new or used Ford Explorer, the following table can be used to compare the 2021 Ford Explorer with the Ford Explorer from other model years. Note that the number of problems reported for the 2021 Explorer is 483 while the average number of problems reported for the 30 model years of the Ford Explorer is 1,125.