Toyota PRIUS Owner's Manual page 269

26P197
Type 1 and Type 2
26p125
Type 3
Push and turn this knob to step up the
station band or to step down.
Your radio automatically changes to stereo
reception when a stereo broadcast is re-
ceived. "ST" appears on the display. If the
signal becomes weak, the radio reduces
the amount of channel separation to pre-
vent the weak signal from creating noise.
If the signal becomes extremely weak, the
radio switches from stereo to mono recep-
tion. In this case, "ST" disappears from
the display.
26p260
Type 1
Type 2
253