Subaru Impreza - Problems, Statistics, and Analysis

Subaru Impreza owners have reported a total of 1,955 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 (328 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 (328 problems). The second most common problem is related to the vehicle's engine and engine cooling (232 problems).

Table 2. Common problems of Subaru Impreza

Problem Category Number of Problems
  Air Bag
328
  Engine And Engine Cooling
232
  Power Train
212
  Service Brakes
180
  Gasoline Fuel System
128
  Suspension
123
  Electrical System
96
  Structure
94
  Other Fuel System
93
  Equipment
91
   
  Visibility
91
  Vehicle Speed Control
61
  Wheel
38
  Seats
37
  Steering
37
  Seat Belt
27
  Exterior Lighting
24
  Tire
22
  Unknown Or Other
12
  Latches/locks/linkage
9
  Electronic Stability Control
9
  Air Brake
7
  Interior Lighting
2
  Parking Brake
1
  Child Seat
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 1769,2311    
0.25
  2017 50112,2892    
0.22
  2016 3491,0693    
0.12
  2015 3499,0724    
0.09
  2014 6268,9675    
0.18
  2013 15388,3026    
0.29
  2012 23166,9907    
0.49
  2011 6649,3038    
0.17
  2010 4337,9929    
0.13
  2009 11242,53310    
0.26
  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 32860,39817    
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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