Subaru Legacy - Problems, Statistics, and Analysis

Subaru Legacy owners have reported a total of 2,099 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 Legacy. The 2005 Subaru Legacy cars have the most problems reported (219 problems).

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

  Common problems of Subaru Legacy

The following chart shows the 27 most common problems for Subaru Legacy cars. The number one most common problem is related to the vehicle's engine and engine cooling (301 problems). The second most common problem is related to the vehicle's air bags (269 problems).

Table 2. Common problems of Subaru Legacy

Problem Category Number of Problems
  Engine And Engine Cooling
301
  Air Bag
269
  Power Train
196
  Service Brakes
168
  Electrical System
157
  Vehicle Speed Control
143
  Visibility
100
  Equipment
99
  Suspension
90
  Other Fuel System
82
   
  Steering
76
  Gasoline Fuel System
69
  Structure
64
  Tire
63
  Exterior Lighting
59
  Seats
34
  Wheel
34
  Seat Belt
31
  Unknown Or Other
30
  Latches/locks/linkage
13
  Electronic Stability Control
10
  Interior Lighting
4
  Parking Brake
2
  Traction Control System
2
  Air Brake
1
  Forward Collision Avoidance
1
  Child Seat
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Subaru Legacy 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 Legacy 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 Legacy 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 Legacy Model Years

Legacy
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2018 1031,0731    
0.32
  2017 1664,6992    
0.12
  2016 5359,4413    
0.30
  2015 13270,3724    
0.47
  2014 3734,7355    
0.21
  2013 5045,0696    
0.18
  2012 5239,0947    
0.19
  2011 14655,2308    
0.33
  2010 14637,9979    
0.43
  2009 5026,94110    
0.19
  2008 5827,26211    
0.19
  2007 3316,87112    
0.16
  2006 11824,36013    
0.37
  2005 21939,35914    
0.40
  2004 4667,34915    
0.05
  2003 5791,95716    
0.04
  2002 6095,04517    
0.04
  2001 84108,02118    
0.04
  2000 117106,31719    
0.06
  1999 11497,43920    
0.06

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Subaru Legacy 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
  2018 Legacy
9
  2017 Legacy
8
  2016 Legacy
15
  2015 Legacy
69
  2014 Legacy
4
  2013 Legacy
10
  2012 Legacy
6
  2011 Legacy
23
  2010 Legacy
35
  2009 Legacy
3
  2008 Legacy
3
  2007 Legacy
1
  2006 Legacy
8
  2005 Legacy
32
  2004 Legacy
4
  2003 Legacy
5
  2002 Legacy
8
  2001 Legacy
13
  2000 Legacy
20
  1999 Legacy
28
  1998 Legacy
25
  1997 Legacy
13
  1996 Legacy
15


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