Jeep Liberty - Problems, Statistics, and Analysis

Jeep Liberty owners have reported a total of 11,355 problems for their cars built in the 13 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 Liberty. The 2002 Jeep Liberty cars have the most problems reported (2,274 problems).

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

Model Year	Number of Problems
2012 Liberty	542
2011 Liberty	232
2010 Liberty	270
2009 Liberty	138
2008 Liberty	743
2007 Liberty	885
2006 Liberty	1,744
2005 Liberty	1,418
2004 Liberty	1,391
2003 Liberty	1,700
2002 Liberty	2,274
2001 Liberty	11
2000 Liberty	7

🔍 Common problems of Jeep Liberty

The following chart shows the 30 most common problems for Jeep Liberty cars. The number one most common problem is related to the vehicle's suspension (2,032 problems). The second most common problem is related to the vehicle's air bags (1,339 problems).

Table 2. Common problems of Jeep Liberty

Problem Category	Number of Problems
Suspension	2,032
Air Bag	1,339
Other Fuel System	1,168
Visibility	1,028
Electrical System	868
Structure	735
Equipment	584
Engine And Engine Cooling	582
Gasoline Fuel System	543
Power Train	489

Steering	341
Service Brakes	331
Seat Belt	229
Exterior Lighting	222
Vehicle Speed Control	187
Wheel	146
Unknown Or Other	111
Electronic Stability Control	98
Tire	94
Latches/locks/linkage	71
Seats	65
Diesel Fuel System	42
Parking Brake	16
Air Brake	15
Traction Control System	7
Interior Lighting	6
Back Over Prevention	2
Child Seat	2
Forward Collision Avoidance	1
Firerelated	1

📉 Compare Reliability Across Model Years Using PPMY Index

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

Liberty Model Year	Problems	Sales [1]	Vehicle Age	PPMY Index
2012	542	25,017	14	1.55
2011	232	12,004	15	1.29
2010	270	9,340	16	1.81
2009	138	6,099	17	1.33
2008	743	21,391	18	1.93
2007	885	20,806	19	2.24
2006	1,744	32,466	20	2.69
2005	1,418	36,492	21	1.85
2004	1,391	41,491	22	1.52
2003	1,700	43,274	23	1.71
2002	2,274	47,834	24	1.98

📊 Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Jeep Liberty 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 Year	Problems Reported
2012 Liberty	22
2011 Liberty	15
2010 Liberty	14
2009 Liberty	5
2008 Liberty	25
2007 Liberty	53
2006 Liberty	87
2005 Liberty	57
2004 Liberty	54
2003 Liberty	78
2002 Liberty	96

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