They are found quite often in automobiles. Having to remove plastic rivets from any object can be very annoying. The removal process is quite simple, but trying to pull the plastic rivets out takes a firm grip and a considerable amount of arm strength. Be careful when removing the plastic rivets, because they tend to fly off once you are finally able to pry them from their resting place.
Wedge the flat head screwdriver underneath the side of the plastic rivet. Pull up slightly.
Drag the flat head screwdriver around the plastic rivet, lifting up as you go. Go slowly so you do not scratch the material the plastic rivet is connected to.
Grab the plastic river with your pliers and pull loose.