Buick LESABRE 1996 Manual page 218

If your vehicle has wire
wheel covers, remove them
as follows:
Use the wire wheel key
wrench to remove the
wheel cover.
Using the flat end of the key
wrench handle, between the
wire wheel cover and the
center cap, pry off the
center cap.
Remove the theft-deterrent
nut, by placing the key end
of the wire wheel key
wrench over the nut and
turning it to the left.
Pull off the wire
wheel cover.
Note: When replacing the wheel cover, carefully line up
the tire valve stem and the notch in the wheel cover.