Buick 2001 Century Owner's Manual page 239

Removing the Spare Tire and Tools
The equipment you'll need is in the trunk.
5-22
1. Turn the center nut on
the compact spare cover
counterclockwise to
remove it. Then lift and
remove the cover.
(See "Compact Spare
Tire" in the Index for
more information about
the compact spare.)
2. Remove the spare tire.