GMC 2001 C3 Owner's Manual page 174

D
(5): Press this button to reduce cassette tape noise.
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The double D symbol will appear on the display while
the player is in this mode.
Dolby Noise Reduction is manufactured under a license
from Dolby Laboratories Licensing Corporation. Dolby
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and the double D symbol are trademarks of Dolby
Laboratories Licensing Corporation.
FWD (6): Press this button to rapidly forward the tape
to the end of the cassette or until you press FWD again.
The radio will play the last selected station while
forwarding the tape. The tape direction arrow will blink
during the forward operation.
AM FM: Press this button to switch from a tape or CD
to the radio.
CD TAPE: Press this button if you have a tape loaded
in the cassette tape player and the radio is turned on, to
play a tape. Press AM FM to return to the radio when a
tape is playing. Press CD TAPE to switch between the
tape player, remote CD and console
changer if all are loaded. When a tape is playing, a
lighted arrow will appear on the display and show the
direction of play. (If the radio is turned off, the tape
stays in the player and will resume playing at the point
where it stopped.)
EJECT: Press this button to remove the tape. The
radio will now play. EJECT can be used with either the
ignition or radio off. To load a cassette tape with the
ignition or radio off, press EJECT before loading
the cassette.
CLN: If this message appears on the display, the
cassette tape player needs to be cleaned. It will still play
tapes, but you should clean it as soon as possible to
prevent damage to the tapes and player. See "Care of
Your Cassette Tape Player" in the Index. After you clean
the player, press and hold EJECT for five seconds to
reset the CLN indicator. The radio will display
show the indicator was reset.
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mounted CD
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