1994 Buick Century Owner's Manual - Page 202

I NOTICE: Raising your vehicle with the jack improperly positioned will damage the vehicle or may allow the vehicle to fall off the jack. Be sure fit the to jack lift head into the proper location before raising your vehicle. Raise the vehicle far enough off the ground so there is enough room for the spare tire to fit. Remove all the wheel nuts and take off the flat tire. Remove any rust or dirt from the wheel bolts, mounting surfaces or spare wheel. Raise the vehicle by rotating the wheel wrench clockwise. 200