18 problems have been reported for the 2004 Toyota Scion Xa. The following chart shows the 10 most common problems for 2004 Toyota Scion Xa. The number one most common problem is related to the vehicle's engine and engine cooling with 4 problems. The second most common problem is related to the vehicle's equipment (3 problems).
| Problem Category | Number of Problems |
|---|---|
| Engine And Engine Cooling | |
| Equipment | |
| Tire | |
| Electrical System | |
| Service Brakes | |
| Air Bag | |
| Power Train | |
| Unknown Or Other | |
| Exterior Lighting | |
| Vehicle Speed Control |
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 Scion Xa in the United States are 14,753 units [1]. If the total number of problems reported by Toyota Scion Xa owners in the last 18 years is 18, and the age of the vehicle is 18, the PPMY index can then be calculated as
PPMY Index = 18 / 14,753 / 18 * 1000 = 0.07.
For more information, refer to this page: A study of reliability comparison across Toyota Scion Xa 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 Scion Xa in 2004.
| Service Year | Number of Problems |
|---|---|
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 | |
| 2014 | |
| 2013 | |
| 2012 | |
| 2011 | |
| 2010 | |
| 2009 | |
| 2008 | |
| 2007 | |
| 2006 | |
| 2005 | |
| 2004 |
When making the decision between buying a new or used Toyota Scion Xa, the following table can be used to compare the 2004 Toyota Scion Xa with the Toyota Scion Xa from other model years. Note that the number of problems reported for the 2004 Scion Xa is 18 while the average number of problems reported for the 3 model years of the Toyota Scion Xa is 41.
| Model Year | Number of Problems |
|---|---|
| 2006 Scion Xa | |
| 2005 Scion Xa | |
| 2004 Scion Xa |