Pontiac 2006 G6 Owner's Manual page 328

4. Use the wheel wrench to loosen all the wheel nuts.
Do not remove them yet.
5-90
5. Position the lift head at the jack location nearest the
flat tire. Make sure all of the jack lift head is touching
the jacking flange under the body. Do not place the
jack under a body panel. The lower body panel has
an arrow to aid in locating the jacking location.
6. Put the compact spare tire near the flat tire being
changed.