2002 Toyota Sienna - Problems, Statistics, and Analysis

Common problems of the 2002 Toyota Sienna

212 problems have been reported for the 2002 Toyota Sienna.
The following chart shows the 22 most common problems for 2002 Toyota Sienna.
The number one most common problem is related to the vehicle's structure
with 36 problems.
The second most common problem is related to the vehicle's latches/locks/linkages
(25 problems).

Table 1. Common problems of the 2002 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 2002 Toyota Sienna in the United States are 85,417 units [1]. If the total number of problems reported by Toyota Sienna owners in the last 16 years is 212, and the age of the vehicle is 16, 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 2002 Toyota Sienna in 2002.

Table 2. PPMY Index and Problem Occurrence Trend

Service Year

Number of Problems

2018

0

2017

3

2016

1

2015

5

2014

4

2013

8

2012

3

2011

11

2010

21

2009

26

2008

22

2007

14

2006

10

2005

16

2004

18

2003

20

2002

4

Compare the 2002 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 2002 Toyota Sienna
with the Toyota Sienna from other model years.
Note that the number of problems reported for the 2002 Sienna is 212
while the average number of problems reported for the 23 model years of the Toyota Sienna is 385.

Table 3. Compare the 2002 Toyota Sienna with other model years