Toyota Scion Xb - Problems, Statistics, and Analysis

Toyota Scion Xb owners have reported a total of 726 problems for their cars built in the 10 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 Scion Xb. The 2006 Toyota Scion Xb cars have the most problems reported (263 problems).

Table 1. Total number of problems by model year for Toyota Scion Xb

  Common problems of Toyota Scion Xb

The following chart shows the 24 most common problems for Toyota Scion Xb cars. The number one most common problem is related to the vehicle's visibility (217 problems). The second most common problem is related to the vehicle's service brakes, hydraulic (65 problems).

Table 2. Common problems of Toyota Scion Xb

Problem Category Number of Problems
  Visibility
217
  Service Brakes
65
  Vehicle Speed Control
56
  Structure
54
  Electrical System
50
  Engine And Engine Cooling
46
  Air Bag
41
  Steering
33
  Electronic Stability Control
22
  Equipment
19
   
  Power Train
17
  Latches/locks/linkage
16
  Unknown Or Other
15
  Seat Belt
14
  Suspension
10
  Wheel
10
  Exterior Lighting
9
  Gasoline Fuel System
9
  Seats
7
  Tire
6
  Other Fuel System
5
  Traction Control System
2
  Air Brake
2
  Parking Brake
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Toyota Scion Xb 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 Scion Xb 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 Scion Xb 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 Scion Xb Model Years

Scion Xb
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2012 134,8376    
0.00
  2011 419,9097    
0.03
  2010 2020,7198    
0.12
  2009 4737,0399    
0.14
  2008 24860,55310    
0.41
  2006 26393,16312    
0.24
  2005 10067,39613    
0.11
  2004 4025,09814    
0.11

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Toyota Scion Xb 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
  2011 Scion Xb
2
  2010 Scion Xb
7
  2009 Scion Xb
10
  2008 Scion Xb
39
  2007 Scion Xb
1
  2006 Scion Xb
37
  2005 Scion Xb
13
  2004 Scion Xb
2


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