1998 Cadillac Seville Owner's Manual - Page 264

Removing the Wheel Cover I .A ' - - The tools you'll be using includethe jack (A) and the wheel wrench (B). SLS Wheel Shown On the SLS, there is a center wheel cover on the aluminum wheel. Using the flat end the wheel of wrench, gentlypry the wheel coveroff. Be careful notto scratch the aluminum wheel edge and try to don't remove it with your hands. On the STS, the wheel nuts and wheel nut covers are exposed. Use the wheel wrench to remove the wheel nut covers. 5-27