GMC sierra 2002 User Manual

AM FM: Press this button to listen to the radio 
when a tape is playing. The inactive tape will remain 
in the player.

CD AUX (Auxiliary): Press this button to play a 
tape when listening to the radio. The lighted arrow will
appear next to the symbol and show the direction of 
play when a tape is active.

The following functions are controlled by the remote
cassette tape player:

PROG (Program): Press this button on the remote
player to go from one side of the tape to the other.

EJECT: Press this button on the remote player to
remove the tape. EJECT can be used with either the
ignition or radio off. Also, you must press EJECT before
loading a cassette with the radio off to allow loading.

THEFTLOCK

R

 is designed to discourage theft of your

radio. It works by using a secret code to disable all radio
functions whenever battery power is removed.

The THEFTLOCK feature for the radio may be used or
ignored. If ignored, the system plays normally and the
radio is not protected by the feature. If THEFTLOCK is
activated, your radio will not operate if stolen.

When THEFTLOCK is activated, the radio will display
LOC to indicate a locked condition anytime battery
power has been interrupted. If your battery loses power
for any reason, you must unlock the radio with the secret
code before it will operate.