2011 Hyundai Sonata - Problems, Statistics, and Analysis

Common problems of the 2011 Hyundai Sonata

2,864 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 995 problems.
The second most common problem is related to the vehicle's engine and engine cooling
(501 problems).

Table 1. Common problems of the 2011 Hyundai Sonata

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 2864, and the age of the vehicle is 7, 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 2011 Hyundai Sonata in 2011.

Table 2. PPMY Index and Problem Occurrence Trend

Service Year

Number of Problems

2018

84

2017

412

2016

636

2015

578

2014

256

2013

168

2012

141

2011

1

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 2,864
while the average number of problems reported for the 23 model years of the Hyundai Sonata is 450.

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