1996 Buick Regal Owner's Manual - Page 212

A a- &..; %L c Turn the nut holding the jackand wrench counterclockwise and remove it. Then remove the jack and wrench. The tools you'll be using include the jack (A), wheel wrench (B) and wheel nut socket (C). If there is a wheel cover, loosen the plastic nut caps with the wheel wrench. They won't come off. Then, using the flat end of the wheel wrench, pry along the edge of the wheel cover until it comes off. Be careful; the edge may be sharp. Don't try to remove the cover with your bare hands.