2011 Toyota Sienna - Problems, Statistics, and Analysis

small car iamge Common problems of the 2011 Toyota Sienna

650 problems have been reported for the 2011 Toyota Sienna. The following chart shows the 24 most common problems for 2011 Toyota Sienna. The number one most common problem is related to the vehicle's air bags with 204 problems. The second most common problem is related to the vehicle's structure (112 problems).

Table 1. Common problems of the 2011 Toyota Sienna

small car iamge PPMY Index and Problem Occurrence Trend

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 2011 Toyota Sienna in the United States are 187,467 units [1]. If the total number of problems reported by Toyota Sienna owners in the last 7 years is 650, and the age of the vehicle is 7, the PPMY index can then be calculated as

      PPMY Index = 650 / 187,467 / 7 * 1000 = 0.50.

For more information, refer to this page: A study of reliability comparison across Toyota Sienna model year vehicles.

The following chart shows the number of problems reported during each of the service years since the debut of the 2011 Toyota Sienna in 2011.

Table 2. PPMY Index and Problem Occurrence Trend

Service Year Number of Problems
  2018
15
  2017
102
  2016
235
  2015
35
  2014
56
  2013
48
  2012
36
  2011
40

small car iamge Compare the 2011 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 2011 Toyota Sienna with the Toyota Sienna from other model years. Note that the number of problems reported for the 2011 Sienna is 650 while the average number of problems reported for the 23 model years of the Toyota Sienna is 388.

Table 3. Compare the 2011 Toyota Sienna with other model years

Model Year Number of Problems
  2018 Sienna
2
  2017 Sienna
34
  2016 Sienna
61
  2015 Sienna
131
  2014 Sienna
97
  2013 Sienna
133
  2012 Sienna
247
  2011 Sienna
650
  2010 Sienna
170
  2009 Sienna
227
  2008 Sienna
431
  2007 Sienna
388
  2006 Sienna
1,105
  2005 Sienna
1,259
  2004 Sienna
2,402
  2003 Sienna
118
  2002 Sienna
212
  2001 Sienna
232
  2000 Sienna
448
  1999 Sienna
246
  1998 Sienna
345
  1997 Sienna
2
  1996 Sienna
3


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