Theft-Deterrent Feature (Non-Rds Radios); Theft-Deterrent Feature (Rds Radios); Understanding Radio Reception - Chevrolet 2004 Classic Owner's Manual

Theft-Deterrent Feature (Non-RDS
Radios)
®
THEFTLOCK 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 LOC will be displayed.
®
With THEFTLOCK activated, your radio will not
operate if stolen.
Theft-Deterrent Feature (RDS
Radios)
®
THEFTLOCK 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.
With THEFTLOCK activated, your radio will not operate
if stolen.
3-54

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.
FM
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.