2006 Toyota Sienna - Problems, Statistics, and Analysis

Common problems of the 2006 Toyota Sienna

1,130 problems have been reported for the 2006 Toyota Sienna.
The following chart shows the 25 most common problems for 2006 Toyota Sienna.
The number one most common problem is related to the vehicle's air bags
with 297 problems.
The second most common problem is related to the vehicle's structure
(218 problems).

Table 1. Common problems of the 2006 Toyota Sienna

In our research we use the PPMY index to compare the reliability of vehicles. The PPMY index of a certain model is defined as the problems reported per thousand vehicles per Year. The total sales of the 2006 Toyota Sienna in the United States are 200,899 units [1]. If the total number of problems reported by Toyota Sienna owners in the last 12 years is 1130, and the age of the vehicle is 12, the PPMY index can then be calculated as

The following chart shows the number of problems reported during each of the service
years since the debut of the 2006 Toyota Sienna in 2006.

Table 2. PPMY Index and Problem Occurrence Trend

Service Year

Number of Problems

2018

32

2017

42

2016

67

2015

70

2014

81

2013

105

2012

120

2011

172

2010

170

2009

89

2008

67

2007

57

2006

5

Compare the 2006 Toyota Sienna with Other Model Years

When making the decision between buying a new or used Toyota Sienna,
the following table can be used to compare the 2006 Toyota Sienna
with the Toyota Sienna from other model years.
Note that the number of problems reported for the 2006 Sienna is 1,130
while the average number of problems reported for the 23 model years of the Toyota Sienna is 395.

Table 3. Compare the 2006 Toyota Sienna with other model years