Jeep Wrangler - Problems, Statistics, and Analysis

Jeep Wrangler owners have reported a total of 13,372 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 Jeep Wrangler. The 2008 Jeep Wrangler cars have the most problems reported (2,368 problems).

Table 1. Total number of problems by model year for Jeep Wrangler

  Common problems of Jeep Wrangler

The following chart shows the 27 most common problems for Jeep Wrangler cars. The number one most common problem is related to the vehicle's steering (1,749 problems). The second most common problem is related to the vehicle's fuel system, gasoline (1,615 problems).

Table 2. Common problems of Jeep Wrangler

Problem Category Number of Problems
  Steering
1,749
  Gasoline Fuel System
1,615
  Air Bag
1,400
  Power Train
1,318
  Electrical System
1,256
  Engine And Engine Cooling
1,156
  Suspension
968
  Other Fuel System
920
  Equipment
603
  Structure
438
   
  Service Brakes
407
  Visibility
289
  Wheel
220
  Vehicle Speed Control
202
  Electronic Stability Control
186
  Seat Belt
153
  Exterior Lighting
139
  Unknown Or Other
137
  Tire
80
  Latches/locks/linkage
51
  Seats
49
  Parking Brake
17
  Traction Control System
7
  Air Brake
7
  Interior Lighting
3
  Child Seat
1
  Diesel Fuel System
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Jeep Wrangler 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 Wrangler 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 Jeep Wrangler 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 Wrangler Model Years

Wrangler
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2006 81554,45313    
1.15
  2005 71853,95914    
0.95

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Jeep Wrangler 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 Wrangler
1
  2018 Wrangler
628
  2017 Wrangler
36
  2016 Wrangler
65
  2015 Wrangler
51
  2014 Wrangler
59
  2013 Wrangler
236
  2012 Wrangler
83
  2011 Wrangler
50
  2010 Wrangler
76
  2009 Wrangler
46
  2008 Wrangler
84
  2007 Wrangler
421
  2006 Wrangler
60
  2005 Wrangler
52
  2004 Wrangler
33
  2003 Wrangler
36
  2002 Wrangler
15
  2001 Wrangler
25
  2000 Wrangler
59
  1999 Wrangler
24
  1998 Wrangler
91
  1997 Wrangler
47


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