Cadillac DTS owners have reported a total of 679 problems for their cars built in the 8 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 DTS. The 2006 Cadillac DTS cars have the most problems reported (326 problems).
The following chart shows the 23 most common problems for Cadillac DTS cars. The number one most common problem is related to the vehicle's electrical system (174 problems). The second most common problem is related to the vehicle's exterior lighting (100 problems).
It would not be fair to compare the Cadillac DTS 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 DTS 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 DTS 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 DTS 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 |
|---|---|
| 2010 DTS | |
| 2009 DTS | |
| 2008 DTS | |
| 2007 DTS | |
| 2006 DTS | |
| 2005 DTS |