See also:

Maintenance Schedule
Owner Checks and Services At Each Fuel Stop . Check the engine oil level. See Engine Oil  . Once a Month . Check the tire inflation pressures. See Tire Pressure  . . Inspect the tires f ...

Exterior
Designed with a chiseled look, the four-door STS features what Cadillac says is a "faster profile" with "more rake" than the CTS. Cadillac styling touches include a wide airfoi ...

All-new interior design
An all-new sophisticated, luxurious interior incorporates a clean, sculpted contemporary design featuring genuine materials, fabrics and low-gloss, tactile surfaces. Refinements include dual-fir ...