Buick 2004 Century - Manual (Page 297)

Storing the Flat Tire and Tools
{ CAUTION:
Storing a jack, a tire, or other equipment in the
passenger compartment of the vehicle could
cause injury. In a sudden stop or collision,
loose equipment could strike someone. Store
all these in the proper place.
After the compact spare tire is put on the vehicle, store
the flat tire in the trunk. Use the following procedure
to secure the flat tire in the trunk.
When storing a full-size tire, use the extension with the
protector, located in the foam holder, to help avoid
wheel surface damage. To store a full-size tire, place
the tire valve stem facing down, and then remove
the protector and attach the retainer securely. Store the
cover as far forward as possible.
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