2002 Chevrolet Malibu Owner's Manual - Page 157

THEFTLOCKR is designed to discourage theft of your 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 will not operate and LOCKED will be displayed. When the ignition is off and RAP is not active, the blinking red light indicates that THEFTLOCK is armed. With THEFTLOCK activated, your radio will not operate if stolen. Theft-Deterrent Feature FM Stereo FM stereo will give you the best sound, but FM signals will reach only about 10 to 40 miles (16 to 65 km). Tall buildings or hills can interfere with FM signals, causing the sound to come and go. Tips About Your Audio System Hearing damage from loud noise is almost undetectable until it is too late. Your hearing can adapt to higher volumes of sound. Sound that seems normal can be loud and harmful to your hearing. Take precautions by adjusting the volume control on your radio to a safe sound level before your hearing adapts to it. To help avoid hearing loss or damage do the following: 1. Adjust the volume knob to the lowest setting. 2. Increase volume slowly until you hear comfortably and clearly. Understanding Radio Reception AM The range for most AM stations is greater than for FM, especially at night. The longer range, however, can cause stations to interfere with each other. AM can pick up noise from things like storms and power lines. Try reducing the treble to reduce this noise if you ever get it. 3-26