Ford 2013 Flex Owner's Manual page 362

If the third row seat is stowed in the floor, you will need to unstow it to
access the spare tire and jack.
8. Remove the wheel cover with the lug wrench tip and loosen each
wheel lug nut one-half turn counterclockwise, but do not remove them
until the wheel is raised off the ground.
2013 Flex (471)
Owners Guide gf, 4th Printing, December 2012
USA (fus)
Wheels and Tires
3. Remove the carpeted floor panel
located in the rear of the vehicle, then
remove the wing nut that secures the
spare tire by turning it counterclockwise.
4. Lift and remove the spare tire from
the trunk.
5. Remove the second wing nut that
secures the jack retention bracket by
turning it counterclockwise, then remove
the jack kit from the vehicle.
6. Remove the jack, L-shaped bolt, and
the wrench from the felt bag. Fold down
the wrench socket to use to loosen the
lug nuts and to operate the jack.
7. Block the diagonally opposite
wheel.
9. The vehicle jacking points are
shown here, and are depicted on the
yellow warning label on the jack.
Note: Jack at the specific locations
to avoid damage to the vehicle.
361