143 problems have been reported for the 2003 Nissan Pathfinder. The following chart shows the 16 most common problems for 2003 Nissan Pathfinder. The number one most common problem is related to the vehicle's engine and engine cooling with 31 problems. The second most common problem is related to the vehicle's suspension (19 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 2003 Nissan Pathfinder in the United States are 46,515 units [1]. If the total number of problems reported by Nissan Pathfinder owners in the last 22 years is 143, and the age of the vehicle is 22, the PPMY index can then be calculated as
PPMY Index = 143 / 46,515 / 22 * 1000 = 0.14.
For more information, refer to this page: A study of reliability comparison across Nissan Pathfinder model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2003 Nissan Pathfinder in 2003.
| Service Year | Number of Problems |
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| 2025 | |
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| 2003 |
When making the decision between buying a new or used Nissan Pathfinder, the following table can be used to compare the 2003 Nissan Pathfinder with the Nissan Pathfinder from other model years. Note that the number of problems reported for the 2003 Pathfinder is 143 while the average number of problems reported for the 29 model years of the Nissan Pathfinder is 313.