Etching your vehicle’s VIN number serves as a permanent fingerprint of your vehicle. VIN etching is an effective visual deterrent against auto theft. When a vehicle is stolen, the thief must change the identity of the vehicle by changing the VIN identification plate on the dashboard. With a new VIN identification plate in place, he/she now has a new vehicle. BUT, with a vehicle that has its window glass VIN etched, the thief must replace and dispose of each piece of window glass, which drastically cuts into their profit margin. As a thief contemplates stealing your vehicle, they will notice the etching on the glass, and may move on to an unmarked vehicle.