Theft-Deterrent Feature - GMC Sierra Classic 2007 Owner's Manual

SRC (Source): Press this button to select a
source: radio, cassette tapes, CDs, or DVDs.
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SEEK : When listening to FM1, FM2, or AM,
press the up or the down arrow to go to the
next or to the previous station and stay there. This
function is inactive if the front seat passengers
are listening to the radio.
When a cassette tape is playing, press the up or
the down arrow to go to the next or the previous
selection. This function is inactive if the front seat
passengers are listening to a cassette tape.
When a CD is playing, press the up arrow to go to
the next track on the CD. Press the down arrow to
go to the start of the current track if more than
eight seconds have played. This function is inactive
if the front seat passengers are listening to a CD.
PROG (Program): Press this button to go to the
next preset radio station set on the pushbuttons on
the main radio. This function is inactive if the
front seat passengers are listening to the radio.
When a cassette tape is playing, press this button
to go to the other side of the tape. This function
is inactive if the front seat passengers are listening
to a cassette tape.
When a CD is playing, press this button to go to
the beginning of the CD. This function is inactive if
the front seat passengers are listening to a CD.
When a CD is playing in the six-disc CD changer,
press this button to select the next CD, if
multiple CDs are loaded. This function is inactive if
the front seat passengers are listening to a CD.

Theft-Deterrent Feature

®
THEFTLOCK is designed to discourage theft of
your vehicle's radio. The feature works
automatically by learning a portion of the Vehicle
Identification Number (VIN). If the radio is
moved to a different vehicle, it does not operate
and LOCKED displays.
When the radio and vehicle are turned off, the
blinking red light indicates that THEFTLOCK
is armed.
®
With THEFTLOCK activated, the radio does not
operate if stolen.
®
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