The switch is basically 3 layers. The screwdriver was used to carefully separate them. The top layer is a cover which is what you press and pull to control the window. The middle layer is mostly electronics. There are tiny parts involved so you should work on a large flat surface where any parts that fall can be found easily.
The bottom layer has 2 contacts for the main power used to drive the window motor. Over time the contacts become dirty and no longer close. In this particular switch the 2 thin flaps get pressed down to meet the round pads to close the circuit. Dust and dirt accumulates here as well as the contacts wear away over time.
I used a scrap cloth and a flat head screwdriver to wipe the contacts clean. The parts were reassembled and the window is once again working properly. There are many other problem that can cause the same issue but this worked for me.
Power window not going down
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Hyundai, mazda, nissan, toyota, honda, acura, ford power window not working