2003 Subaru Impreza - Problems, Statistics, and Analysis

Common problems of the 2003 Subaru Impreza

59 problems have been reported for the 2003 Subaru Impreza. The following chart shows the 16 most common problems for 2003 Subaru Impreza. The number one most common problem is related to the vehicle's service brakes, hydraulic with 13 problems. The second most common problem is related to the vehicle's fuel system, gasoline (12 problems).

Table 1. Common problems of the 2003 Subaru Impreza

Problem Category	Number of Problems
Service Brakes	13
Gasoline Fuel System	12
Other Fuel System	12
Engine And Engine Cooling	3
Air Bag	3
Structure	3
Equipment	2
Visibility	2
Suspension	2
Seats	1
Seat Belt	1
Vehicle Speed Control	1
Power Train	1
Exterior Lighting	1
Tire	1
Air Brake	1

PPMY Index and Problem Occurrence Trend

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 2003 Subaru Impreza in the United States are 23,833 units [1]. If the total number of problems reported by Subaru Impreza owners in the last 16 years is 59, and the age of the vehicle is 16, the PPMY index can then be calculated as

PPMY Index = 59 / 23,833 / 16 * 1000 = 0.15.

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 2003 Subaru Impreza in 2003.

Table 2. PPMY Index and Problem Occurrence Trend

Service Year	Number of Problems
2019	1
2018	1
2017	0
2016	4
2015	2
2014	1
2013	4
2012	1
2011	1
2010	2
2009	3
2008	6
2007	5
2006	4
2005	3
2004	4
2003	2

Compare the 2003 Subaru Impreza with Other Model Years

When making the decision between buying a new or used Subaru Impreza, the following table can be used to compare the 2003 Subaru Impreza with the Subaru Impreza from other model years. Note that the number of problems reported for the 2003 Impreza is 59 while the average number of problems reported for the 24 model years of the Subaru Impreza is 80.

Table 3. Compare the 2003 Subaru Impreza with other model years

Model Year	Number of Problems
2019 Impreza	2
2018 Impreza	17
2017 Impreza	47
2016 Impreza	33
2015 Impreza	34
2014 Impreza	61
2013 Impreza	145
2012 Impreza	230
2011 Impreza	63
2010 Impreza	43
2009 Impreza	108
2008 Impreza	232
2007 Impreza	77
2006 Impreza	59
2005 Impreza	81
2004 Impreza	101
2003 Impreza	59
2002 Impreza	328
2001 Impreza	13
2000 Impreza	54
1999 Impreza	27
1998 Impreza	55
1997 Impreza	37
1996 Impreza	25

Switch Year:

★ Safety Ratings of Impreza Cars

✿ Fuel Economy of Impreza Vehicles

☘ Impreza Service Bulletins

⚑ Impreza Safety Recalls

☤ Impreza Defect Investigations