386 problems have been reported for the 2002 Nissan Sentra. The following chart shows the 21 most common problems for 2002 Nissan Sentra. The number one most common problem is related to the vehicle's engine and engine cooling with 164 problems. The second most common problem is related to the vehicle's electrical system (54 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 2002 Nissan Sentra in the United States are 114,040 units [1]. If the total number of problems reported by Nissan Sentra owners in the last 24 years is 386, and the age of the vehicle is 24, the PPMY index can then be calculated as
PPMY Index = 386 / 114,040 / 24 * 1000 = 0.14.
For more information, refer to this page: A study of reliability comparison across Nissan Sentra model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2002 Nissan Sentra in 2002.
| Service Year | Number of Problems |
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| 2026 | |
| 2025 | |
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| 2002 |
When making the decision between buying a new or used Nissan Sentra, the following table can be used to compare the 2002 Nissan Sentra with the Nissan Sentra from other model years. Note that the number of problems reported for the 2002 Sentra is 386 while the average number of problems reported for the 31 model years of the Nissan Sentra is 235.