Subaru Impreza - Problems, Statistics, and Analysis

Subaru Impreza owners have reported a total of 1,919 problems for their cars built in the 24 model years listed in the chart below. The chart shows the number of problems reported across all service years for each given model year of the Subaru Impreza. The 2002 Subaru Impreza cars have the most problems reported (327 problems).

Table 1. Total number of problems by model year for Subaru Impreza

  Common problems of Subaru Impreza

The following chart shows the 25 most common problems for Subaru Impreza cars. The number one most common problem is related to the vehicle's air bags (323 problems). The second most common problem is related to the vehicle's engine and engine cooling (222 problems).

Table 2. Common problems of Subaru Impreza

Problem Category Number of Problems
  Air Bag
323
  Engine And Engine Cooling
222
  Power Train
210
  Service Brakes
177
  Gasoline Fuel System
128
  Suspension
122
  Electrical System
93
  Other Fuel System
92
  Structure
92
  Visibility
91
   
  Equipment
89
  Vehicle Speed Control
59
  Seats
37
  Steering
36
  Wheel
36
  Seat Belt
27
  Tire
22
  Exterior Lighting
22
  Unknown Or Other
12
  Latches/locks/linkage
9
  Electronic Stability Control
9
  Air Brake
7
  Interior Lighting
2
  Child Seat
1
  Parking Brake
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Subaru Impreza of an older model year to newer model years since older vehicles have been in service longer and thus are expected to have more problems. In order to compare the reliability across Impreza model years, we use the PPMY index which is defined as the problems reported per thousand vehicles per Year. A smaller PPMY index indicates greater reliability of the given model year cars.

    PPMY = P / S / Y * 1000,

where P = total problems reported during the life of a Subaru Impreza model year; S = total units sold of the model year; Y = years since the debut of the model year (the age of the vehicle).

The results are shown in Table 3.

Table 3. Use PPMY Index to Compare Reliability Across Impreza Model Years

Impreza
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2018 1669,2311    
0.23
  2017 46112,2892    
0.20
  2016 3391,0693    
0.12
  2015 3499,0724    
0.09
  2014 6168,9675    
0.18
  2013 14388,3026    
0.27
  2012 22266,9907    
0.47
  2011 6249,3038    
0.16
  2010 4337,9929    
0.13
  2009 10842,53310    
0.25
  2008 23259,34011    
0.36
  2007 7739,19812    
0.16
  2006 5942,49113    
0.11
  2005 8138,80814    
0.15
  2004 10139,38115    
0.17
  2003 5923,83316    
0.15
  2002 32760,39817    
0.32
  2001 139,30118    
0.08
  2000 5418,68419    
0.15
  1999 2720,13320    
0.07

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Subaru Impreza is to use the total number of problems reported during the vehicle's first year in service, as shown in the Table 4.

Table 4. Number of problems in vehicle's; first service year

Model YearProblems Reported
  2019 Impreza
2
  2018 Impreza
15
  2017 Impreza
28
  2016 Impreza
10
  2015 Impreza
9
  2014 Impreza
17
  2013 Impreza
19
  2012 Impreza
45
  2011 Impreza
6
  2010 Impreza
3
  2009 Impreza
3
  2008 Impreza
34
  2007 Impreza
11
  2006 Impreza
7
  2005 Impreza
16
  2004 Impreza
17
  2003 Impreza
13
  2002 Impreza
52
  2001 Impreza
4
  2000 Impreza
13
  1999 Impreza
7
  1998 Impreza
16
  1997 Impreza
3
  1996 Impreza
7


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