Depending on the model year and model type, the attachment is different.
Front bumper
-under the hood take out the eight clips that secure the upper part of the bumper.
-Unscrew the screws and take out the caps on the perimeter at the bottom.
-wrenched the wheel left or right, depending on which side of the bed will disassemble.
-wheel arches take out the rivets and removed the fender liner.
-attach the fender liner to the side and wrenched the screws (spun upwards) holding the corners to the wings.
-assistant free the bumper from the clips in the wings and pulled off of the guide itself.
-remove the connector from the fog lamp (if any).
-remove the connector from the Parking assist sensors (if any).
Rear bumper
-in the opening of the trunk Unscrew two screws on each side and remove the tail lights (hold on clips).
-under the rear lights, Unscrew the screws and take out the caps.
-in the opening of the trunk and pull out the caps (inserted upside down).
-wheel arches take out the rivets that attach the fender liner.
-for wheel arch liners Unscrew one screw on each side (spun upwards) holding the corners to the fenders (may not be).
-Unscrew the screws and take out the caps at the bottom of the bumper.
-with the assistant release the latch (pull the corners away) and pulls the bumper itself.
-free iron clamps (visible after removing).
-remove the connector from the Parking assist sensors (if any).
How to remove front and rear bumper KIA Rio I (2000-2005)
How to remove front and rear bumper KIA Rio III (2011-2017)
How to remove front and rear bumper KIA Rio IV (2017+)