Cadillac 2004 CTS - Manual (Page 361)

Removing the Spare Tire and Tools
The equipment you’ll need is in the trunk.
To gain access to the spare tire and jacking equipment,
do the following:
1. Turn the center nut on
the compact spare tire
cover counterclockwise
to remove it. Then
remove the cover.
2. Turn the nut holding the jack counterclockwise and
remove it. Then remove the jack and wheel wrench.
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