2003 Oldsmobile Silhouette Owner's Manual - Page 385

3. Attach the folding wrench to the jack, and turn the wrench clockwise to raise the jack head a few inches. 6. Remove any rust or dirt from the wheel bolts, mounting surfaces and spare wheel. 4. Raise the vehicle by turning the folding wrench clockwise in the jack. Raise the vehicle far enough off the ground so there is enough room for the compact spare tire to fit under the wheel well. 5. Remove all the wheel nuts and take off the flat tire. Rust or dirt on the wheel, or on the parts to which it is fastened, can make the wheel nuts become loose after a time.The wheel could come off and cause an accident. When you change a wheel, remove any rust or dirt from to the places where the wheel attaches the vehicle. In an emergency, you can use a cloth or a paper towel to do this;but be sure to use a scraper or wire brush later, if you need to, to get all therust or dirt off. 5-78