The 2009 DTS is a 4-door, up to 6-passenger luxury sedan, available in 5 trims, ranging from the V8 to the Performance.

Upon introduction, the V8 is equipped with a standard 4.6-liter, V8, 275-horsepower engine that achieves 15-mpg in the city and 23-mpg on the highway. The Performance is equipped with a standard 4.6-liter, V8, 292-horsepower engine that achieves 15-mpg in the city and 22-mpg on the highway. A 4-speed automatic transmission with overdrive is standard on both trims.

The 2009 DTS is a carryover from 2008.