Buick 2004 Century - Manual (Page 288)

Removing the Spare Tire and Tools
The equipment you will need is in the trunk.
1. Turn the center nut on
the compact spare tire
cover counterclockwise
to remove it. Then
lift and remove
the cover. See
Compact Spare Tire on
page 5-87 for more
information about the
compact spare tire.
2. Remove the spare tire.
5-76