Repair procedures: Replacement

Remove the front wheel & tire.
Tightening torque :

88.3 ~ 107.9N.m(9.0 ~ 11.0Kgf.m, 65.1 ~ 79.6lb-ft)
Remove the split pin and front lower arm (A) mounting bolt from the knuckle.
Tightening torque :

98.1 ~ 117.7N.m(10.0 ~ 12.0Kgf.m, 72.3 ~ 86.8lb-ft)

Fig 1: Identifying Front Lower Arm
Courtesy of KIA MOTORS AMERICA, INC.
Remove the lower arm mounting bolts & nuts and then remove the lower arm.
Tightening torque :

137.3 ~ 156.9N.m(14.0 ~ 16.0Kgf.m, 101.3 ~ 115.7lb-ft)

Fig 2: Identifying Lower Arm Mounting Bolts
Courtesy of KIA MOTORS AMERICA, INC.

Fig 3: Identifying Lower Arm Mounting Nuts
Courtesy of KIA MOTORS AMERICA, INC.
Installation is the reverse of removal.