39 problems have been reported for the 2015 Cadillac ATS. The following chart shows the 14 most common problems for 2015 Cadillac ATS. The number one most common problem is related to the vehicle's steering with 6 problems. The second most common problem is related to the vehicle's electrical system (6 problems).
| Problem Category | Number of Problems |
|---|---|
| Steering | |
| Electrical System | |
| Power Train | |
| Exterior Lighting | |
| Equipment | |
| Service Brakes | |
| Tire | |
| Other Fuel System | |
| Suspension | |
| Air Bag | |
| Visibility | |
| Vehicle Speed Control | |
| Engine And Engine Cooling | |
| Gasoline Fuel System |
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 Cadillac ATS in the United States are 22,130 units [1]. If the total number of problems reported by Cadillac ATS owners in the last 11 years is 39, and the age of the vehicle is 11, the PPMY index can then be calculated as
PPMY Index = 39 / 22,130 / 11 * 1000 = 0.16.
For more information, refer to this page: A study of reliability comparison across Cadillac ATS model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2015 Cadillac ATS 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 Cadillac ATS, the following table can be used to compare the 2015 Cadillac ATS with the Cadillac ATS from other model years. Note that the number of problems reported for the 2015 ATS is 39 while the average number of problems reported for the 7 model years of the Cadillac ATS is 75.