Chevrolet 2002 TrailBlazer Owner's Manual page 213

Cassette Tape Messages
(CHK TAPE): If CHK TAPE appears on the radio
display, the tape won't play because of one of the
following errors.
D
The tape is tight and the player can't turn the tape
hubs. Remove the tape. Hold the tape with the
open end down and try to turn the right hub
counterclockwise with a pencil. Turn the tape over
and repeat. If the hubs do not turn easily, your tape
may be damaged and should not be used in the
player. Try a new tape to make sure your player is
working properly.
D
The tape is broken. Try a new tape.
D
The tape is wrapped around the tape head. Attempt
to get the cassette out. Try a new tape.
(CLEAN): 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 the cassette eject button for
five seconds to reset the CLEAN indicator. The radio
display will display CLEANED to show the indicator
was reset.
If any error occurs repeatedly or if an error can't be
corrected, please contact your dealer.
Tight/Loose Tape Sensor Defeat
With the radio off and the ignition on, press and hold the
TAPE CD button to disable the tight/loose tape sensing
feature to enable play of some tape head cleaners and
portable CD adapters. The radio will display READY
and flash the cassette icon. The tight/loose tape sensing
feature will then be disabled until the next time a
cassette is ejected.
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