Chevrolet 1995 Monte Carlo Owner's Manual page 187

To remove a center cap, use the wrench to pry gently at
the notch. Don't use a tool that
is
narrower than the
wrench to pry at this notch.
If your vehicle has wheel nut caps, remove them using
the wheel wrench.
d
Using the wheel wrench, loosen all the wheel nuts.
Don't remove them yet.