Oldsmobile 2001 Aurora - Manual (Page 246)

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2. Remove the wheel wrench and jack from the
jack container.
3. Remove the spare tire from the trunk.
The tools you’ll be using include the jack (A) and the
wheel wrench (B).
Removing the Wheel Cover
Insert the hooked end of the wheel wrench in one of the
two small notches in the center cover and pry the cover
off. Do not drop the cover or lay it face down, as it
could be scratched or damaged.