If you have C inside of a bullseye icon in the screen or the radio.
Tap, do not hold, the Squelch knob into the radio until the icon disappears from the display window.
If the screen happens to change to show a Custom Search or a Service Search:
1. Tap the Func key (silver knob) on the front of the radio and tap the L/O key twice
2. Repeat if another Custom or Service Search appears in the screen during your scan