Overhead Interior Lights Rocker Switch failure

On the overhead panel with the two personal interior lights, has a three position rocker switch that either keeps lights off or on, and center position controls interior lights when a door is opened/closed. We very seldom have needed to move switch from center position and was surprised when lights did not illuminate.

Can get lights to go on by jiggling the rocker to the "on" side, but then go off with vibration. So conclude the switch has gone bad. Checked the owners manual and does not appear to be any other control switch that would keep lights off.

Has anyone experienced this failure? Can I "easily" replace the switch or is this something that best left to ($$$) Toyota dealer?

 

Thanks.
If I hold the switch to ON position bulbs stay on OK. When I let go bulbs may or may not stay lit. If I push the centered rocker up hard then lights come on with door open, and when door closes, lamps will time out and dim out like they used to do. So that tells me its the switch or bad connection that is causing the lamp outages.

What terms would I search on YouTube to find how to access the switch removal/replacement?