73 problems have been reported for the 2018 Ford Flex. The following chart shows the 13 most common problems for 2018 Ford Flex. The number one most common problem is related to the vehicle's structure with 16 problems. The second most common problem is related to the vehicle's equipment (14 problems).
| Problem Category | Number of Problems |
|---|---|
| Structure | |
| Equipment | |
| Back Over Prevention | |
| Electrical System | |
| Suspension | |
| Other Fuel System | |
| Steering | |
| Wheel | |
| Power Train | |
| Air Bag | |
| Lane Departure | |
| Electronic Stability Control | |
| Service Brakes |
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 Ford Flex in the United States are 21,116 units [1]. If the total number of problems reported by Ford Flex owners in the last 8 years is 73, and the age of the vehicle is 8, the PPMY index can then be calculated as
PPMY Index = 73 / 21,116 / 8 * 1000 = 0.43.
For more information, refer to this page: A study of reliability comparison across Ford Flex model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2018 Ford Flex 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 Ford Flex, the following table can be used to compare the 2018 Ford Flex with the Ford Flex from other model years. Note that the number of problems reported for the 2018 Flex is 73 while the average number of problems reported for the 11 model years of the Ford Flex is 214.