2005 Cadillac STS Owner's Manual - Page 365

Removing the Flat Tire and Installing the Spare Tire If your vehicle has wheel nut caps, turn the wheel wrench counterclockwise to remove the caps. If your vehicle has wheel covers, use the flat end of the wheel wrench to remove the covers. Turn the wheel wrench clockwise to gently pry off the wheel cover. Be careful not to scratch the aluminum wheel edge and don't try to remove the wheel cover with your hands. Once the wheel cover and wheel nut caps have been removed, use the following steps to remove the flat tire and install the spare tire. 5-75