Toyota 4Runner 2021 Owner's Manual page 135

Available HD Radio tech-
nology
Multicast
■
On the FM radio frequency most
digital stations have "multiple" or
supplemental programs on one
FM station.
1
Select the "HD)" logo.
2
Select the desired channel.
 Turning the "TUNE SCROLL"
knob can also select the
desired multicast channel.
Troubleshooting guide
Experience
■
 Mismatch of time alignment- a
user may hear a short period
of programming replayed or
an echo, stutter or skip.
Cause: The radio stations analog
and digital volume is not properly
aligned or the station is in ballgame
mode.
Action: None, radio broadcast
issue. A user can contact the radio
station.
 Sound fades, blending in and
out.
Cause: Radio is shifting between
analog and digital audio.
Action: Reception issue, may
clear-up as the vehicle continues to
be driven. Turning the indicator of
the "HD Radio AM" and "HD Radio
FM" button off can force radio in an
analog audio.
 Audio mute condition when an
4-2. Radio operation
HD2/HD3 multicast channel
had been playing.
Cause: The radio does not have
access to digital signals at the
moment.
Action: This is normal behavior,
wait until the digital signal returns. If
out of the coverage area, seek a
new station.
 Audio mute delay when
selecting an HD2/HD3
multicast channel preset.
Cause: The digital multicast content
is not available until HD Radio
broadcast can be decoded and
make the audio available. This
takes up to 7 seconds.
Action: This is normal behavior,
wait for the audio to become avail-
able.
 Text information does not
match the present song
audio.
Cause: Data service issue by the
radio broadcaster.
Action: Broadcaster should be noti-
fied. Complete the form:
https://hdradio.com/stations/
feedback
 No text information shown for
the present selected fre-
quency.
Cause: Data service issue by the
radio broadcaster.
Action: Broadcaster should be noti-
fied. Complete the form:
https://hdradio.com/stations/
feedback
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