Chevrolet 2001 Blazer Owner's Manual page 212

Audio Steering Wheel Controls (If Equipped)
If your vehicle has this feature, you can control certain
radio functions using the buttons on your steering wheel.
If a cassette tape is playing, press this button to play the
other side of the tape. If a compact disc is playing in the
-
console mounted CD changer (if equipped), press this
button to go to the next available CD.
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PROG: Press this button
to play a station you
have programmed on the
radio preset buttons on the
selected band.
SEEK: Press the up arrow to tune to the next radio
station and the down arrow to tune to the previous
radio station.
If a cassette tape or compact disc is playing, the player
will advance with the up arrow and reverse with the
down arrow.
MUTE: Press this button
to silence the system.
Press it again to turn on
the sound.
VOL: Press the up or
down arrow to increase or
decrease volume.