56 problems have been reported for the 2021 Lincoln Aviator. The following chart shows the 18 most common problems for 2021 Lincoln Aviator. The number one most common problem is related to the vehicle's electrical system with 9 problems. The second most common problem is related to the vehicle's visibility (5 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 Lincoln Aviator in the United States are 15,855 units [1]. If the total number of problems reported by Lincoln Aviator owners in the last 5 years is 56, and the age of the vehicle is 5, the PPMY index can then be calculated as
PPMY Index = 56 / 15,855 / 5 * 1000 = 0.71.
For more information, refer to this page: A study of reliability comparison across Lincoln Aviator model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2021 Lincoln Aviator in 2021.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 |
When making the decision between buying a new or used Lincoln Aviator, the following table can be used to compare the 2021 Lincoln Aviator with the Lincoln Aviator from other model years. Note that the number of problems reported for the 2021 Aviator is 56 while the average number of problems reported for the 9 model years of the Lincoln Aviator is 81.
| Model Year | Number of Problems |
|---|---|
| 2025 Aviator | |
| 2024 Aviator | |
| 2023 Aviator | |
| 2022 Aviator | |
| 2021 Aviator | |
| 2020 Aviator | |
| 2005 Aviator | |
| 2004 Aviator | |
| 2003 Aviator |