1. Move the handle on the inside of the door to the outside of the door to remove the insulator above the door panel.
2. Gently press the switch of the glass lifter with your fingers to remove the insulator.
3. Remove the glass lifter switch with a small screwdriver, and remove the round glass lifter switch.
4. Gently remove the fixing screw of the glass lifter switch with a small screwdriver, and then remove the switch.