258 problems have been reported for the 2020 Nissan Altima. The following chart shows the 22 most common problems for 2020 Nissan Altima. The number one most common problem is related to the vehicle's electrical system with 39 problems. The second most common problem is related to the vehicle's engine and engine cooling (36 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 Nissan Altima in the United States are 189,139 units [1]. If the total number of problems reported by Nissan Altima owners in the last 6 years is 258, and the age of the vehicle is 6, the PPMY index can then be calculated as
PPMY Index = 258 / 189,139 / 6 * 1000 = 0.23.
For more information, refer to this page: A study of reliability comparison across Nissan Altima model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2020 Nissan Altima in 2020.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 |
When making the decision between buying a new or used Nissan Altima, the following table can be used to compare the 2020 Nissan Altima with the Nissan Altima from other model years. Note that the number of problems reported for the 2020 Altima is 258 while the average number of problems reported for the 30 model years of the Nissan Altima is 645.