2002 Cadillac DeVille Owner's Manual - Page 233

Your radio can store home and away presets. Home and away presets allow you to use one set of preset radio settings in the area where you live, and another set when you go out of town. That way, you will not need to reprogram your presets every time you travel. With the radio off and the clock displayed, use fast forward and reverse to select home or away presets. To select the away presets, press and hold FF for five seconds until you hear a beep. The next time the radio comes on, the away presets will be active. To select the home presets, press and hold RW or REV for five seconds until you hear a beep. The next time the radio comes on, the home presets will be active. When battery power is removed and later applied, you will not have to reset your home radio presets because the radio remembers them. However, you will have to reset your away radio presets. THEFTLOCKR is designed to discourage theft of your radio. Your vehicle has a "built-in" theft-deterrent feature on each radio that is automatic -- there is no programming required. The radio in your vehicle cannot be used in any other vehicle. When the radio was originally installed in your vehicle at the factory, it stored the Vehicle Identification Number (VIN). Each time the ignition is turned on, the VIN is verified. If the vehicle's VIN does not match the VIN stored in the radio, THEFTLOCK will be activated and the audio system will not play. If the radio is removed from your vehicle, the original VIN in the radio can be used to trace the radio back to your vehicle. Theft-Deterrent Feature 3-31