The easiest part of fixing a Hyundai window regulator is ordering the new regulator set from our site. Delivery is quick and you will be assured of the quality of the components. Then, comes the hard part: taking apart the door panel. This task requires moderate DIY experience, but can be done with patience and attention to detail. You must also be careful of your fingers, since the spring and levers in a door panel are very powerful. First, first remove the lower and upper door trim panels. There are some special tools to help you pry open the panel, but most of the work can be done with a basic tool set. There will be a multitude of wires leading to accessories like the power window switches, power door locks, remote mirror controls and stereo speakers or amps; they must be disconnected. Then, peel back the weather seal. One hint: map out or mark the position of all the components of the door panel before removing them. You will see the window regulator's linkage, which raises the window, powered by a small motor. If it is a power window, the motor is hooked up to a combination of a worm gear and spur gears, which give torque to raise the window. The same kind of design is used with manual windows, but a crank handle turns the gear in a manual window.