1. A small Motorola-built radio transceiver, about the size of a chalkboard eraser, is installed in one of 30 out-of-sight places in the vehicle.
2. A code unique to that unit is paired with the Vehicle Identification Number, and the data are put into the state police criminal information computer. State and local police have LoJack radio equipment at the stations and in patrol cars. If the car is never stolen, nothing else happens.
3. If the car is stolen, the radio at the police station sends a signal to the unit in the car, activating its homing signal.
4. LoJack-equipped police cars pick up the signal if the stolen car comes within about 2 to 5 miles, and home in on it. A code corresponding to the make and model of the stolen vehicle is displayed on the patrol car's in-vehicle computer, so visual identification can be made.