GMC 2003 C4C042 Owner's Manual page 184

3 REV (Reverse): Press this pushbutton to reverse the
tape rapidly. FR will appear on the display. Press it again
to return to playing the tape. The radio will play while
the tape reverses. You may select stations during reverse
operation by using the TUNE or SEEK controls or by
using the scan or preset scan features.
4 FWD (Forward): Press this pushbutton to advance
quickly to another part of the tape. FF will appear on the
display. Press this pushbutton again to return to playing
the tape. The radio will play while the tape advances.
You may select stations during forward operation by
using the TUNE or SEEK controls or by using the scan
or preset scan features.
5 SIDE: Press this pushbutton to play the other side of
the tape.
6 RPT (Repeat): Your tape must have at least three
seconds of silence between each selection for repeat to
work. Press this pushbutton once to hear a selection
over again. RPT will appear on the display. Press this
button again to turn off repeated play. OFF will appear
on the display.
SEEK : The right arrow is the same as the NEXT
pushbutton, and the left arrow is the same as the PREV
pushbutton. If the arrows are held or pressed more than
once, the player will continue moving forward or
backward through the tape.
AM FM: Press this button to listen to the radio when a
tape is playing. The inactive tape will remain safely
inside the radio for future listening.
TAPE: Press this button to play a cassette tape when
listening to the radio. CAS will appear on the display.
(EJECT): Press this button to eject a tape. Eject
may be activated with the radio off. Cassette tapes may
be loaded with the radio and vehicle off if this button is
pressed first.
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