2007 Buick Terraza Owner's Manual - Page 475

If needed, you can finish loosening with your fingers. The plastic nut caps will not come off. Use the flat end of the wheel wrench and pry along the edge of the cover until it comes off. The edge of the wheel cover could be sharp, so do not try to remove it with your bare hands. Do not drop the cover or lay it face down, as it could become scratched or damaged. Once you have removed the wheel cover, use the following procedure to remove the flat tire and install the spare tire. 1. Loosen the wheel nuts using the folding wrench, but do not remove them. Turn the handle counterclockwise about 180 degrees, then flip the handle back to the starting position. This avoids taking the wrench off the lug nut for each turn. Notice: If your vehicle has wheel locks and you use an impact wrench to remove the wheel nuts, you could damage the lock nut or wheel lock key. Do not use an impact wrench to remove the wheel nuts if your vehicle has wheel locks. 475