2005 Buick LaCrosse Owner's Manual - Page 347

Removing the Flat Tire and Installing the Spare Tire If your vehicle has wheel covers with center caps, the wheel nuts are hidden behind the cap. The center cap must be removed before you can remove the flat tire and install the spare tire. Use the wheel wrench to loosen the plastic nut caps in a counterclockwise direction. If needed, finish loosening them by hand. The nut caps will not come off. Then, using the flat end of the wheel wrench, pry along the edge of the wheel cover until it comes off. Be careful; the edge may be sharp. Do not try to remove the cover with your bare hands. Once you have removed the center cap or wheel cover, use the following procedure to remove the flat tire and install the spare tire. To remove a center cap, use the wrench to pry gently at the notch on the cap. Do not use a tool that is narrower than the wrench to pry at this notch. Then pry off the cap. 1. Place the wheel wrench securely over the wheel nut. Turn the wheel wrench counterclockwise to loosen all the wheel nuts, but do no remove them yet. 5-71