Cadillac 2004 CTS - Manual (Page 239)

Navigation/Radio System
The display screen is located in the center of the
instrument panel.
Your vehicle may be equipped with a radio navigation
system that includes Digital Sound Processing (DSP),
Radio Data System (RDS) with Program Type (PTY)
selections that will seek out the kind of music you want to
listen to. The radio system can also communicate with
your navigation system to broadcast announcements on
traffic, weather, and emergency alert communications.
For information on how to use this system, see the
“Navigation System” manual.
Theft-Deterrent Feature
THEFTLOCK ® 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.
Navigation/Radio Display and Controls
3-117