Suzuki Forenza - Problems, Statistics, and Analysis

Suzuki Forenza owners have reported a total of 1,305 problems for their cars built in the 5 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 Suzuki Forenza. The 2006 Suzuki Forenza cars have the most problems reported (417 problems).

Table 1. Total number of problems by model year for Suzuki Forenza

Model Year Number of Problems
  2008 Forenza
224
  2007 Forenza
368
  2006 Forenza
417
  2005 Forenza
211
  2004 Forenza
85

  Common problems of Suzuki Forenza

The following chart shows the 24 most common problems for Suzuki Forenza cars. The number one most common problem is related to the vehicle's power train (317 problems). The second most common problem is related to the vehicle's electrical system (183 problems).

Table 2. Common problems of Suzuki Forenza

Problem Category Number of Problems
  Power Train
317
  Electrical System
183
  Air Bag
178
  Engine And Engine Cooling
145
  Exterior Lighting
97
  Vehicle Speed Control
70
  Equipment
39
  Seat Belt
32
  Unknown Or Other
31
  Latches/locks/linkage
31
   
  Structure
28
  Suspension
26
  Steering
24
  Service Brakes
23
  Tire
18
  Other Fuel System
13
  Electronic Stability Control
11
  Visibility
9
  Seats
8
  Wheel
8
  Gasoline Fuel System
8
  Interior Lighting
3
  Parking Brake
2
  Traction Control System
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Suzuki Forenza 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 Forenza 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 Suzuki Forenza 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 Forenza Model Years

Forenza
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2008 22421,35810    
1.05
  2007 36834,23611    
0.98
  2006 41742,40512    
0.82
  2005 21134,83713    
0.47
  2004 8523,08714    
0.26

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Suzuki Forenza 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
  2008 Forenza
9
  2007 Forenza
19
  2006 Forenza
56
  2005 Forenza
27
  2004 Forenza
18


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