2002 Buick LeSabre Owner's Manual - Page 197

THEFTLOCKR 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 and the radio is placed in a different vehicle. This feature requires no user input to be activated. It is automatically armed when it is put into the vehicle for the first time. When the ignition is turned off, the blinking red light indicates that THEFTLOCK is armed. If THEFTLOCK is activated, your radio will not operate if stolen. The radio will display LOCKED and a red LED indicator light will come on above the key symbol to indicate a locked condition. If this occurs, the radio will have to be returned to the dealer. Theft-Deterrent Feature (If Equipped) Audio Steering Wheel Controls (If Equipped) If your vehicle has this feature, you can control certain radio functions using the buttons on your steering wheel. SOURCE: Press this button to play a cassette tape or compact disc when listening to the radio. If a cassette tape and a compact disc are both loaded, the system will go to the tape play first. MUTE: Press this button to silence the system. Press it again to turn on the sound. YVOL B (Volume): Press the up or down arrow to increase or decrease volume. 3-40