Cadillac ATS owners have reported a total of 532 problems for their cars built in the 7 model years listed in the chart below. The chart shows the number of problems reported across all service years for each given model year of the Cadillac ATS. The 2013 Cadillac ATS cars have the most problems reported (246 problems).
The following chart shows the 22 most common problems for Cadillac ATS cars. The number one most common problem is related to the vehicle's power train (96 problems). The second most common problem is related to the vehicle's engine and engine cooling (71 problems).
It would not be fair to compare the Cadillac ATS of an older model year to newer model years since older vehicles have been in service longer and thus are expected to have more problems. In order to compare the reliability across ATS model years, we use the PPMY index which is defined as the problems reported per thousand vehicles per Year. A smaller PPMY index indicates greater reliability of the given model year cars.
PPMY = P / S / Y * 1000,
where P = total problems reported during the life of a Cadillac ATS model year; S = total units sold of the model year; Y = years since the debut of the model year (the age of the vehicle).
The results are shown in Table 3.
Another way to measure the reliability across the model years of the Cadillac ATS is to use the total number of problems reported during the vehicle's first year in service, as shown in the Table 4.
| Model Year | Problems Reported |
|---|---|
| 2018 ATS | |
| 2017 ATS | |
| 2015 ATS | |
| 2014 ATS | |
| 2013 ATS |