The FFH Owner's Manual does not provide a wheel changing guide because the FFH is equipped with a Tire Mobility Kit instead of a mini-spare tire and jack/lug wrench.
The standard non-hybrid Fusion OM has tire changing guidelines and lug nut torque spec's, they are copied here.
The following illustrations are directly from the non-hybrid Ford Fusion Owner's manual, pages 290, 291, 292.
The wheel lug nut torque specifications are included in both Owner's Manuals and are exactly the same, page 296 in the FFH OM and page 292 in the FF OM.
For further clarification, download the entire non-hybrid 2013 Ford Fusion Owner's Manual here.
Note: Some wording will not apply to your car or situation.