1997 Buick LeSabre Owner's Manual - Page 237

Use the wire wheel key wrench to remove the wheel cover. 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. of Using the flat end the key wrench handle, between the wire wheel cover and the center cap, pry off the center cap. 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. 5-27