531 problems have been reported for the 2004 Toyota Tacoma. The following chart shows the 22 most common problems for 2004 Toyota Tacoma. The number one most common problem is related to the vehicle's structure with 179 problems. The second most common problem is related to the vehicle's suspension (90 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 Toyota Tacoma in the United States are 159,348 units [1]. If the total number of problems reported by Toyota Tacoma owners in the last 22 years is 531, and the age of the vehicle is 22, the PPMY index can then be calculated as
PPMY Index = 531 / 159,348 / 22 * 1000 = 0.15.
For more information, refer to this page: A study of reliability comparison across Toyota Tacoma model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2004 Toyota Tacoma in 2004.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
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| 2004 |
When making the decision between buying a new or used Toyota Tacoma, the following table can be used to compare the 2004 Toyota Tacoma with the Toyota Tacoma from other model years. Note that the number of problems reported for the 2004 Tacoma is 531 while the average number of problems reported for the 31 model years of the Toyota Tacoma is 328.