77 problems have been reported for the 2015 Hyundai Sonata Hybrid. The following chart shows the 13 most common problems for 2015 Hyundai Sonata Hybrid. The number one most common problem is related to the vehicle's electrical system with 21 problems. The second most common problem is related to the vehicle's engine and engine cooling (19 problems).
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 2015 Hyundai Sonata Hybrid in the United States are 17,198 units [1]. If the total number of problems reported by Hyundai Sonata Hybrid owners in the last 11 years is 77, and the age of the vehicle is 11, the PPMY index can then be calculated as
PPMY Index = 77 / 17,198 / 11 * 1000 = 0.41.
For more information, refer to this page: A study of reliability comparison across Hyundai Sonata Hybrid model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2015 Hyundai Sonata Hybrid in 2015.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 |
When making the decision between buying a new or used Hyundai Sonata Hybrid, the following table can be used to compare the 2015 Hyundai Sonata Hybrid with the Hyundai Sonata Hybrid from other model years. Note that the number of problems reported for the 2015 Sonata Hybrid is 77 while the average number of problems reported for the 12 model years of the Hyundai Sonata Hybrid is 64.
| Model Year | Number of Problems |
|---|---|
| 2025 Sonata Hybrid | |
| 2022 Sonata Hybrid | |
| 2021 Sonata Hybrid | |
| 2019 Sonata Hybrid | |
| 2018 Sonata Hybrid | |
| 2017 Sonata Hybrid | |
| 2016 Sonata Hybrid | |
| 2015 Sonata Hybrid | |
| 2014 Sonata Hybrid | |
| 2013 Sonata Hybrid | |
| 2012 Sonata Hybrid | |
| 2011 Sonata Hybrid |