Dimmer Switch

Fig. 1: Using a suitable tool, carefully pry the retaining clips from either side of the switch trim plate . . .

Fig. 2: . . . then carefully pull the switch and trim plate out of the instrument panel

Fig. 3: Detach the electrical connectors and remove the switch

Disconnect the negative battery cable.
Using a small screwdriver or other suitable tool, carefully pry the retaining clips from either side of the switch trim plate.
Carefully pull the switch and trim plate out of the instrument panel.
Detach the electrical connectors and remove the switch.
The installation is the reverse of removal.