1993 Buick Century Owner's Manual - Page 212

Standard Wheel Cover Wire Wheel Cover 4 Removing the wire wheel cover requiresthis wire wheel key wrench. Put the flat end into the notch and carefully pry the small center cover off. You will be using the flat end the wheel wrench to of remove the wheel cover. Pry along the edge of the wheel cover until it comes off. Take off the special antitheft wheel nut. Put the wrench overit like this. Lift the wheel cover off. You may have to pry carefully at the edge of the wheel cover to get it off.If it doesn't comeoff with the minimum effort,it may be that the anti-theft wheel nut is not completely off. 210