2006 Hummer H3 Owner's Manual - Page 346
2006 Hummer H3 Manual
Page 346 highlights
6. Remove all the wheel nuts and take off the flat tire. 7. Remove any rust or dirt from the wheel bolts, mounting surfaces and spare wheel. {CAUTION: {CAUTION: 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 the places where the wheel attaches to 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 needed, to get all the rust or dirt off. Never use oil or grease on studs or nuts. If you do, the nuts might come loose. Your wheel could fall off, causing a serious accident. 8. Put the spare tire on the mounting surface. 9. Put the wheel nuts back on with the rounded end of the nuts toward the wheel after mounting the spare. 5-80