Toyota 4Runner - Problems, Statistics, and Analysis

Toyota 4Runner owners have reported a total of 4,870 problems for their cars built in the 23 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 Toyota 4Runner. The 2003 Toyota 4Runner cars have the most problems reported (597 problems).

Table 1. Total number of problems by model year for Toyota 4Runner

  Common problems of Toyota 4Runner

The following chart shows the 27 most common problems for Toyota 4Runner cars. The number one most common problem is related to the vehicle's structure (1,024 problems). The second most common problem is related to the vehicle's suspension (558 problems).

Table 2. Common problems of Toyota 4Runner

Problem Category Number of Problems
  Structure
1,024
  Suspension
558
  Equipment
522
  Air Bag
436
  Service Brakes
402
  Engine And Engine Cooling
345
  Power Train
330
  Vehicle Speed Control
197
  Steering
186
  Tire
170
   
  Electrical System
153
  Visibility
93
  Wheel
80
  Seats
66
  Gasoline Fuel System
52
  Unknown Or Other
45
  Seat Belt
43
  Electronic Stability Control
43
  Other Fuel System
34
  Exterior Lighting
28
  Latches/locks/linkage
23
  Traction Control System
21
  Parking Brake
8
  Child Seat
5
  Air Brake
4
  Diesel Fuel System
1
  Interior Lighting
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Toyota 4Runner 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 4Runner 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 Toyota 4Runner 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 4Runner Model Years

4Runner
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2018 1163,6581    
0.17
  2017 1985,4172    
0.11
  2016 38155,3313    
0.08
  2015 6191,7274    
0.17
  2014 3665,9725    
0.11
  2013 4362,8606    
0.11
  2012 9341,5707    
0.32
  2011 15656,9428    
0.34
  2010 14841,8289    
0.39
  2009 268,48710    
0.31
  2008 10566,39511    
0.14
  2007 15092,72212    
0.13
  2006 289104,77213    
0.21
  2005 341106,81014    
0.23
  2004 564122,03415    
0.31
  2003 597101,31716    
0.37
  2002 22685,12617    
0.16
  2001 20583,05218    
0.14
  2000 552132,24819    
0.22

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Toyota 4Runner 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 4Runner
11
  2017 4Runner
9
  2016 4Runner
10
  2015 4Runner
13
  2014 4Runner
5
  2013 4Runner
9
  2012 4Runner
6
  2011 4Runner
14
  2010 4Runner
27
  2009 4Runner
9
  2008 4Runner
8
  2007 4Runner
15
  2006 4Runner
46
  2005 4Runner
26
  2004 4Runner
55
  2003 4Runner
125
  2002 4Runner
14
  2001 4Runner
9
  2000 4Runner
26
  1999 4Runner
16
  1998 4Runner
17
  1997 4Runner
12
  1996 4Runner
25


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