I don't think the LED back-lighting is replaceable as a separate part (e.g. like light bulbs). The center switch-bank POD is two types ... MTC manual temp control and ATC auto temp control (see images below).
In older Chargers (I'm not sure which model years) the switch-bank is also the A/C-heater control module. In newer Chargers the switch-bank is just the A/C-heater controls and the A/C-heater control module is mounted behind the glove box.
To remove the switch-bank POD ...
Remove the center bezel from the instrument panel and disconnect the wire harness connector(s)