2011 Hyundai Sonata - Problems, Statistics, and Analysis

small car iamge Common problems of the 2011 Hyundai Sonata

3,194 problems have been reported for the 2011 Hyundai Sonata. The following chart shows the 24 most common problems for 2011 Hyundai Sonata. The number one most common problem is related to the vehicle's steering with 1,038 problems. The second most common problem is related to the vehicle's engine and engine cooling (575 problems).

Table 1. Common problems of the 2011 Hyundai Sonata

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 Hyundai Sonata in the United States are 289,967 units [1]. If the total number of problems reported by Hyundai Sonata owners in the last 7 years is 3194, and the age of the vehicle is 7, the PPMY index can then be calculated as

      PPMY Index = 3194 / 289,967 / 7 * 1000 = 1.57.

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

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

Table 2. PPMY Index and Problem Occurrence Trend

Service Year Number of Problems
  2018
386
  2017
431
  2016
642
  2015
581
  2014
256
  2013
168
  2012
141
  2011
1

small car iamge Compare the 2011 Hyundai Sonata with Other Model Years

When making the decision between buying a new or used Hyundai Sonata, the following table can be used to compare the 2011 Hyundai Sonata with the Hyundai Sonata from other model years. Note that the number of problems reported for the 2011 Sonata is 3,194 while the average number of problems reported for the 23 model years of the Hyundai Sonata is 495.

Table 3. Compare the 2011 Hyundai Sonata with other model years

Model Year Number of Problems
  2018 Sonata
27
  2017 Sonata
55
  2016 Sonata
97
  2015 Sonata
397
  2014 Sonata
266
  2013 Sonata
925
  2012 Sonata
1,036
  2011 Sonata
3,194
  2010 Sonata
328
  2009 Sonata
470
  2008 Sonata
467
  2007 Sonata
774
  2006 Sonata
1,248
  2005 Sonata
191
  2004 Sonata
222
  2003 Sonata
226
  2002 Sonata
390
  2001 Sonata
284
  2000 Sonata
371
  1999 Sonata
250
  1998 Sonata
68
  1997 Sonata
73
  1996 Sonata
37


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