27 problems have been reported for the 1999 Subaru Impreza. The following chart shows the 14 most common problems for 1999 Subaru Impreza. The number one most common problem is related to the vehicle's suspension with 6 problems. The second most common problem is related to the vehicle's power train (4 problems).
| Problem Category | Number of Problems |
|---|---|
| Suspension | |
| Power Train | |
| Service Brakes | |
| Air Bag | |
| Vehicle Speed Control | |
| Seat Belt | |
| Child Seat | |
| Other Fuel System | |
| Tire | |
| Gasoline Fuel System | |
| Wheel | |
| Visibility | |
| Steering | |
| Engine And Engine Cooling |
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 1999 Subaru Impreza in the United States are 20,133 units [1]. If the total number of problems reported by Subaru Impreza owners in the last 23 years is 27, and the age of the vehicle is 23, the PPMY index can then be calculated as
PPMY Index = 27 / 20,133 / 23 * 1000 = 0.06.
For more information, refer to this page: A study of reliability comparison across Subaru Impreza model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 1999 Subaru Impreza in 1999.
| Service Year | Number of Problems |
|---|---|
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 | |
| 2014 | |
| 2013 | |
| 2012 | |
| 2011 | |
| 2010 | |
| 2009 | |
| 2008 | |
| 2007 | |
| 2006 | |
| 2005 | |
| 2004 | |
| 2003 | |
| 2002 | |
| 2001 | |
| 2000 | |
| 1999 |
When making the decision between buying a new or used Subaru Impreza, the following table can be used to compare the 1999 Subaru Impreza with the Subaru Impreza from other model years. Note that the number of problems reported for the 1999 Impreza is 27 while the average number of problems reported for the 27 model years of the Subaru Impreza is 96.