746 problems have been reported for the 2005 Jeep Wrangler. The following chart shows the 19 most common problems for 2005 Jeep Wrangler. The number one most common problem is related to the vehicle's fuel system, gasoline with 324 problems. The second most common problem is related to the vehicle's fuel system, other (122 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 2005 Jeep Wrangler in the United States are 53,959 units [1]. If the total number of problems reported by Jeep Wrangler owners in the last 18 years is 746, and the age of the vehicle is 18, the PPMY index can then be calculated as
PPMY Index = 746 / 53,959 / 18 * 1000 = 0.77.
For more information, refer to this page: A study of reliability comparison across Jeep Wrangler model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2005 Jeep Wrangler in 2005.
| Service Year | Number of Problems |
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| 2005 |
When making the decision between buying a new or used Jeep Wrangler, the following table can be used to compare the 2005 Jeep Wrangler with the Jeep Wrangler from other model years. Note that the number of problems reported for the 2005 Wrangler is 746 while the average number of problems reported for the 29 model years of the Jeep Wrangler is 666.