Subaru Impreza - Problems, Statistics, and Analysis

Subaru Impreza owners have reported a total of 2,056 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 (329 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 (344 problems). The second most common problem is related to the vehicle's engine and engine cooling (251 problems).

Table 2. Common problems of Subaru Impreza

Problem Category Number of Problems
  Air Bag
344
  Engine And Engine Cooling
251
  Power Train
219
  Service Brakes
185
  Gasoline Fuel System
128
  Suspension
126
  Electrical System
104
  Equipment
101
  Structure
97
  Visibility
96
   
  Other Fuel System
95
  Vehicle Speed Control
67
  Steering
44
  Wheel
39
  Seats
38
  Exterior Lighting
29
  Seat Belt
28
  Tire
22
  Unknown Or Other
12
  Electronic Stability Control
11
  Latches/locks/linkage
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 2070,3781    
0.28
  2017 5075,0712    
0.33
  2016 4659,2443    
0.26
  2015 4265,2304    
0.16
  2014 6968,9675    
0.20
  2013 17788,3026    
0.33
  2012 25366,9907    
0.54
  2011 6649,3038    
0.17
  2010 4537,9929    
0.13
  2009 11942,53310    
0.28
  2008 23759,34011    
0.36
  2007 7739,19812    
0.16
  2006 6042,49113    
0.11
  2005 8138,80814    
0.15
  2004 10239,38115    
0.17
  2003 5923,83316    
0.15
  2002 32960,39817    
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
10
  2018 Impreza
18
  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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