Glass Adjustment

Remove the rear door trim.
(Refer Rear Door - "REAR DOOR TRIM ")
Remove the rear door window glass hole plug (A).

Courtesy of KIA MOTORS AMERICA, INC.
Operate the power window switch to lower the window glass until the window glass bolt is visible in the service hole.
Loosen the bolt, adjust the gap by moving the glass (A) left and right, and then tighten the bolt.
Tightening torque:

8.8 - 11.8 N.m (0.9 - 1.2 kgf.m, 6.5 - 8.7 lb.ft)

Courtesy of KIA MOTORS AMERICA, INC.
Check that the glass operates properly.