CHEVROLET 2012 Impala - Manual (Page 154)

Black plate (2,1) Chevrolet Impala Owner Manual - 2012
7-2 Infotainment System
Theft-Deterrent Feature
TheftLock ® is designed to
discourage theft of the vehicle's
radio by learning a portion of the
Vehicle Identification Number (VIN).
The radio does not operate if it is
stolen or moved to a different
vehicle.
Operation
Radio with CD (Base)