1,309 problems have been reported for the 2004 Honda Accord. The following chart shows the 24 most common problems for 2004 Honda Accord. The number one most common problem is related to the vehicle's power train with 342 problems. The second most common problem is related to the vehicle's air bags (256 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 2004 Honda Accord in the United States are 384,830 units [1]. If the total number of problems reported by Honda Accord owners in the last 22 years is 1309, and the age of the vehicle is 22, the PPMY index can then be calculated as
PPMY Index = 1309 / 384,830 / 22 * 1000 = 0.15.
For more information, refer to this page: A study of reliability comparison across Honda Accord model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2004 Honda Accord in 2004.
| Service Year | Number of Problems |
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| 2026 | |
| 2025 | |
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| 2004 |
When making the decision between buying a new or used Honda Accord, the following table can be used to compare the 2004 Honda Accord with the Honda Accord from other model years. Note that the number of problems reported for the 2004 Accord is 1,309 while the average number of problems reported for the 31 model years of the Honda Accord is 977.