Ford Mustang Owner's Manual page 246

Roadside Emergencies
3. Remove the center ornament (if
equipped) from the wheel. Loosen
each wheel lug nut one-half turn
counterclockwise but do not remove
them until the wheel is raised off
the ground.
4. Put the jack in the jack notch
next to the tire you are changing.
Turn the jack handle clockwise until
the wheel is completely off the
ground.
Never use the rear differential
as a jacking point.
WARNING: To lessen the
risk of personal injury, do
not put any part of your body
under the vehicle while changing a
tire. Do not start the engine when
your vehicle is on the jack. The
jack is only meant for changing
the tire.
5. Remove the lug nuts with the lug wrench.
246
2012 05+ Mustang (197)
Owners Guide, 3rd Printing
USA (fus)